Cited by 163Hematopoietic Stem Cell TransplantationAcute Myeloid Leukemia ResearchGenomics and Chromatin Dynamics

Unraveling Hematopoiesis through the Lens of Genomics

Open access
Liggett, L. Alexander, Sankaran, Vijay G.·2020·Cell

Abstract

Hematopoiesis has long served as a paradigm of stem cell biology and tissue homeostasis. In the past decade, the genomics revolution has ushered in powerful new methods for investigating the hematopoietic system that have provided transformative insights into its biology. As part of the genomics revolution, increasingly accurate deep sequencing and novel methods of cell tracking have revealed hematopoiesis to be more of a continuous and less of a discrete and punctuated process than originally envisioned. In part, this continuous nature of hematopoiesis is made possible by the emergent outcomes of vast, interconnected regulatory networks that influence cell fates and lineage commitment. It is also becoming clear how these mechanisms are modulated by genetic variation present throughout the population. This review describes how these recently uncovered complexities are reshaping our concept of tissue development and homeostasis, while opening up a more comprehensive future understanding of hematopoiesis.

AI snapshot

Written from the paper’s full text.

TL;DR

This review argues that the genomics revolution has reshaped the classical hierarchical model of hematopoiesis into a "continuum" model, in which differentiation proceeds largely continuously rather than through discrete punctuated fate decisions. It surveys single-cell genomics, lineage barcoding, regulatory profiling, and human genetics as complementary tools for understanding hematopoietic cell states, fates, and their modulation by genetic variation.

Key findings

  • Single-cell RNA-seq of the mammalian hematopoietic system typically yields a largely continuous distribution of cells from HSCs through mature lineages, supporting a "continuum model" that diverges from the classic punctuated lineage tree; however, functional perturbations reveal distinct transition points, suggesting punctuated transitions may still exist across the continuous landscape.
  • Cell barcoding combined with scRNA-seq shows that early fate biases in HSPCs significantly impact eventual fate, that CMPs are heterogeneous and have already made deterministic fate choices, and that multiple differentiation routes can produce the same lineage (e.g., monocytes).
  • Different lineage-tracing methods disagree on HSC contribution to steady-state hematopoiesis: transposon and genetic barcoding suggest MPPs carry most of the burden, while Cre-lox barcoding and direct fluorescent labeling show consistent, significant HSC contribution; the review concludes there is substantial evidence for regular HSC contributions.
  • Over ten thousand loci have been defined across the allelic spectrum explaining inter-individual variation in blood cell traits; variants influencing multiple traits tend to map to chromatin accessible in early HSPCs, while lineage-restricted variants map to more mature committed cells.

Methods

  • Narrative review of adult hematopoiesis in mice and humans, synthesizing literature on single-cell genomics, lineage tracing/barcoding, transcription factor and chromatin profiling (ChIP-seq, ATAC-seq, DNase hypersensitivity), 3D proximity ligation methods, and human population/rare-variant genetics.
  • No primary data or new experiments; the paper reviews and interprets published studies, including historical work (e.g., ~10,000 HSCs estimated in mouse by competitive BM transplant; 500 billion cells generated daily in humans).

Limitations

  • Stated: the review focuses largely on adult hematopoiesis in mice and humans, excluding developmental and cross-organism differences covered elsewhere; it focuses on intrinsic regulation, with microenvironment/niche covered in other reviews.
  • Stated: in the absence of fate tracking, all inferred biases in native hematopoiesis are speculative; barcoding efficiencies may underrepresent rare populations, and labeling saturation may overrepresent HSCs sharing barcodes with progenitors.
  • Stated: gene expression alone may be insufficient to distinguish discrete cell populations; genetic barcoding/inducible labeling cannot be used for in vivo human hematopoiesis, and human genomic mutation rates are low, limiting clone-tracking resolution.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1016/j.cell.2020.08.030

Cites

207 of 207 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 115 cited sources checked · 0 supported · 0 flagged

  • Findingcitation

    Variants that influence multiple blood traits tend to impact chromatin that is accessible in early hematopoietic stem and progenitor cells.

    “For instance, variants that influence multiple blood traits tend to impact chromatin that is accessible in early HSPCs.”
    Quote in the paperSubstantial claim
  • Findingcitation

    Variants that modify function only within single hematopoietic lineages tend to map to more mature, lineage-committed cells.

    “Variants that modify function only within single hematopoietic lineages instead tend to map to more mature, lineage committed cells.”
    Quote in the paperSubstantial claim
  • Premisecitation

    There is support for cells expressing distinct modules of transcriptional programs that cooperate to subtly and continuously prime cells to differentiate along target lineages.

    “It is still unclear how continuous lineage decisions could be made, but there is support for cells expressing distinct modules of transcriptional programs that cooperate to subtly and continuously prime cells to differentiate along target lineages (Giladi et al., 2018; Velten et al., 2017).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
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  • Premisecitation

    Single-cell genomic approaches have produced compelling evidence that observed cellular heterogeneity reflects downstream lineage decisions.

    “Finally, while single-cell genomic approaches have produced compelling evidence that observed cellular heterogeneity reflects downstream lineage decisions (Herring et al., 2018; La Manno et al., 2018; Rodriguez-Fraticelli et al., 2018), in the absence of fate tracking, all inferred biases in native hematopoiesis are speculative (Pina et al., 2012; Velten et al., 2017).”
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  • Interpretationreasoning

    Transcriptional continuity has contributed to a revised continuum model of hematopoiesis.

    “This transcriptional continuity has contributed to a revised model of the hematopoietic lineage tree, often termed a continuum model of hematopoiesis (Figure 1B).”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. 18
  • May combine two claims. 25
  • Classified as probably not a substantial claim.

    Findingnone given

    Methods to directly quantify HSC compartment size have remained elusive.

    “However, methods to directly quantify HSC compartment size have remained elusive.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    Functional interrogation of hematopoietic cell states can complement single cell transcriptomics and may reveal underlying biology that may be missed by scRNA-seq alone.

    “Functional interrogation of hematopoietic cell states can complement single cell transcriptomics, and may reveal underlying biology that may be missed by scRNA-seq alone.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Perturbing key master regulators while interrogating gene expression has revealed distinct transition points over the continuous transcriptomic landscape, suggesting punctuated transitions.

    “Furthermore, with improved abilities to simultaneously interrogate gene expression, while perturbing key master regulators of this process, such as hematopoietic transcription factors (TFs), it has become clear that there are distinct transition points that occur over this continuous transcriptomic landscape, suggesting the presence of punctuated transitions (Giladi et al., 2018).”
    Quote in the paperSubstantial claim0 of 1 sources checked
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    Interpretationcitation

    While hematopoiesis may be far more continuous than originally modeled, punctuated transitions across this continuous gene expression landscape may still exist and represent functionally distinct groups of cells.

    “It must therefore be considered that while hematopoiesis may be far more of a continuous process than originally modeled, punctuated transitions across this continuous gene expression landscape may still exist, and represent functionally distinct groups of cells (Figure 1C) (Laurenti and Göttgens, 2018).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Laurenti and Göttgens, 2018

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    Interpretationcitation

    Gene expression alone may be insufficient to distinguish discrete cell populations and may miss other relevant aspects of biology.

    “Thus, while the continuum model clearly addresses some of the oversimplifications of the classic model of hematopoiesis, gene expression alone may be insufficient to distinguish discrete cell populations and may miss other relevant aspects of biology (Olsson et al., 2016).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Olsson et al., 2016 source

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  • Probably not a substantial claim: may not pass S4 (based).

    Interpretationnone given

    The continuous nature of hematopoiesis is made possible by emergent outcomes of vast, interconnected regulatory networks that influence cell fates and lineage commitment.

    “In part, this continuous nature of hematopoiesis is made possible by the emergent outcomes of vast, interconnected regulatory networks that influence cell fates and lineage commitment.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    As humans age, they typically experience an increase in total phenotypic HSC numbers as the cell pool grows with time.

    “As humans age, they typically experience an increase in total phenotypic HSC numbers as the cell pool grows with time (de Haan and Van Zant, 1999; Pang et al., 2011; Sudo et al., 2000).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
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  • Probably not a substantial claim: may not pass S1 (asserted).

    Premisecitation

    Leveraging the high rate of mitochondrial mutations can track clonal dynamics within an unperturbed hematopoietic system in humans.

    “In order to truly reflect cell behavior during steady state hematopoiesis, one promising alternative in humans involves leveraging the high rate of mitochondrial mutations to track clonal dynamics within an unperturbed hematopoietic system (Lareau et al., 2019; Ludwig et al., 2019a; Xu et al., 2019).”
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    Premisecitation

    The likelihood of CHIP increases with age, it appears in only a fraction of the population, and it increases the risk of cancer, cardiovascular disease, and other age-related morbidities.

    “While the likelihood of CHIP increases with age, it appears in only a fraction of the population, and it increases the risk of cancer, cardiovascular disease, and other age-related morbidities (Bick et al., 2019a; Genovese et al., 2014; Jacobs et al., 2012; Jaiswal et al., 2014, 2017; Laurie et al., 2012; Xie et al., 2014).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
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  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisenone given

    Genomic approaches include methods to identify TF binding events, chromatin modifications in specific genomic regions, and long-range chromatin interactions.

    “As we discuss in this section, such approaches include methods to identify TF binding events, chromatin modifications in specific genomic regions, and long-range chromatin interactions.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Barcodes produced through Cre-lox recombination in different hematopoietic cells confirmed a major replicative role of MPPs, while also demonstrating a consistent contribution of HSCs.

    “However, barcodes produced through Cre-lox recombination in different hematopoietic cells confirmed a major replicative role of MPPs, while also demonstrating a consistent contribution of HSCs (Busch et al., 2015).”
    Quote in the paperSubstantial claim0 of 1 sources checked
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    Interpretationreasoning

    The resulting highly detailed and rich data has enabled large networks of interacting elements to be generated.

    “The resulting highly detailed and rich data has enabled large networks of interacting elements to be generated”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisenone given

    Human genomic mutation rates tend to be low, which limits the resolution of clone tracking that can be achieved.

    “While effective, human genomic mutation rates tend to be low, which limits the resolution of clone tracking that can be achieved.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    During steady state hematopoiesis, barcodes found within mature cells appeared to originate primarily from MPPs, suggesting that progenitors, rather than HSCs, carry most of the tissue-generation burden.

    “During steady state hematopoiesis, barcodes found within mature cells appeared to originate primarily from MPPs, suggesting that progenitors, rather than HSCs, carry most of the tissue-generation burden.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Sun et al., 2014b

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    Premisecitation

    Recent work has identified several genetic loci that confer risk of developing CHIP and myeloproliferative disorders with age, suggesting that alterations in fundamental cellular processes may promote clonal expansion.

    “Moreover, recent work has identified several genetic loci that confer risk of developing CHIP and myeloproliferative disorders with age, suggesting that alterations in fundamental cellular processes may promote clonal expansion (Bao et al., 2019a; Bick et al., 2019b).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
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    Premisecitation

    Advances in genomics over the past decade have enabled genotyping of large cohorts and sequencing of individuals using massively parallel methods, and have uncovered common variation that affects hematopoiesis and rare mutations that alter this process.

    “Advances in genomics over the past decade have enabled the genotyping of large cohorts and the sequencing of individuals using massively parallel methods, such as exome or genome sequencing, and have uncovered common variation that affects hematopoiesis and also rare mutations that alter this process (Bao et al., 2019b).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Bao et al., 2019b

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  • May combine two claims.

    Interpretationreasoning

    While environmental factors explain some of the inter-individual variation in hematopoiesis, genetic factors appear to have a considerable role, both in healthy individuals and in those affected by disease.

    “While environmental factors undoubtedly explain some of this variation, genetic factors appear to have a considerable role, both in healthy individuals and in those affected by disease.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Environmental factors explain some of the inter-individual variation in hematopoiesis.
  • May combine two claims.

    Premisecitation

    Population-based genetic variation has largely been studied for blood cell traits, and over ten thousand loci have been defined across the allelic spectrum that explain inter-individual variation in such traits.

    “Population-based genetic variation has largely been studied for blood cell traits, and over ten thousand loci have been defined across the allelic spectrum that explain inter-individual variation in such traits (Astle et al., 2016; Chen et al., 2020; Vuckovic et al., 2020).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
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    • cites Chen et al., 2020 source

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  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.

    Premisenone given

    The past decade has seen a dramatic increase in the use of genomic tools to decipher regulatory mechanisms, generating a wealth of rich genomic data.

    “The past decade has seen a dramatic increase in the use of genomic tools to decipher regulatory mechanisms, which generate a wealth of rich genomic data.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    ChIP-seq has been a valuable tool for accurately identifying transcription factor binding events.

    “Historically, chromatin immunoprecipitation with sequencing (ChIP-seq) has been a valuable tool for accurately identifying TF binding events (Rhee and Pugh, 2011).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
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    Interpretationreasoning

    Uncoupling the pleiotropic roles of any transcription factor requires in-depth study beyond complete loss-of-function techniques commonly employed in the field.

    “Uncoupling the pleiotropic roles of any TF requires in depth study, beyond the complete loss-of-function techniques that have commonly been employed in this field.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: In most cases, the contribution of specific transcriptional regulatory elements to hematopoiesis remains unclear.
  • Probably not a substantial claim: may not pass S2 (checkable), S3 (load-bearing), S4 (based).

    Interpretationnone given

    Aided by the genomics revolution, we are gaining a finer appreciation of the diverse and heterogeneous cell behaviors necessary to drive hematopoiesis.

    “Aided by the genomics revolution, we are gaining a finer appreciation of the diverse and heterogeneous cell behaviors that are necessary to drive hematopoiesis.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Functional follow-up showed that the more common ribosomal gene mutations impair the translation of GATA1 mRNA and thus result in impaired erythropoiesis.

    “Inspired by this discovery and through functional follow up, it was shown that the more common ribosomal gene mutations impair the translation of GATA1 mRNA and thus result in impaired erythropoiesis (Khajuria et al., 2018; Ludwig et al., 2014).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites Khajuria et al., 2018 source

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    • cites Ludwig et al., 2014 source

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  • Classified as probably not a substantial claim. May combine two claims.

    Premisenone given

    Studies in human genetic variation have generally focused on identifying single variants significantly associated with a trait or disease through GWAS or disease-causal variants found in particular genes through sequencing-based approaches.

    “Studies in this field have generally focused on identifying single variants that are significantly associated with a trait or disease of interest through GWAS or have focused on disease-causal variants found in particular genes through sequencing-based approaches (Figure 5).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Interrogation of specific loci identified through studies of population-based variation has uncovered key regulatory mechanisms, such as the role of specific GFI1B isoforms in megakaryopoiesis or the identification of a distinct CEBPA enhancer involved in the production of basophils.

    “In other cases, the interrogation of specific loci identified through studies of population-based variation has uncovered key regulatory mechanisms, such as the role of specific GFI1B isoforms in megakaryopoiesis or the identification of a distinct CEBPA enhancer involved in the production of basophils (Guo et al., 2017; Polfus et al., 2016).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
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  • Classified as probably not a substantial claim. May combine two claims.

    Interpretationreasoning

    These approaches have led to numerous important discoveries but have painted a dichotomized picture of human genetic variation affecting hematopoiesis, with rare variants having a big impact on disease and common genetic variants subtly tuning this process.

    “These approaches have led to numerous important discoveries, but have also painted a dichotomized picture of the human genetic variation that affects hematopoiesis, with rare variants having a big impact on disease and common genetic variants subtly tuning this process.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S2 (checkable), S4 (based). May combine two claims.

    Interpretationnone given

    We now understand a great deal of how the hematopoietic tissue behaves as a whole, but are just gaining the ability to understand how the combined functions of all cells in the tissue produce these emergent behaviors.

    “We now understand a great deal of how the tissue behaves as a whole, but are just gaining the ability to understand how the combined functions of all cells in the tissue produce these emergent behaviors.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim.

    Interpretationreasoning

    The limitation that many barcoding approaches label only a fraction of hematopoietic stem and progenitor cells might significantly underrepresent the contributions of rare cell populations and the variation in differentiation dynamics.

    “This limitation might significantly underrepresent the contributions of rare cell populations and the variation in differentiation dynamics.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Many currently employed barcoding approaches are only efficient enough to label a fraction of hematopoietic stem and progenitor cells.
  • May combine two claims.

    Premisecitation

    While clonal blood disorders or cancers are thought to primarily arise due to acquisition of somatic mutations in HSCs or other hematopoietic cells, inherited genetic variation can alter this risk significantly.

    “For instance, while clonal blood disorders or cancers are thought to primarily arise due to the acquisition of somatic mutations in HSCs or in other hematopoietic cells, it is clear that inherited genetic variation can alter this risk significantly (Bao et al., 2019a; Bick et al., 2019b; Vijayakrishnan et al., 2018; Went et al., 2018).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
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  • May combine two claims.

    Premisecitation

    Similar discoveries have uncovered mutations in other hematopoietic transcription factors that alter homeostatic hematopoiesis and in some cases may increase the risk of developing blood cancers.

    “Similar discoveries have uncovered mutations in other hematopoietic TFs that alter homeostatic hematopoiesis and that in some cases may increase the risk of developing blood cancers (Churpek and Bresnick, 2019; Kennedy and Shimamura, 2019).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Churpek and Bresnick, 2019

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    • cites Kennedy and Shimamura, 2019

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  • Probably not a substantial claim: may not pass S1 (asserted), S3 (load-bearing), S4 (based). May combine two claims.

    Interpretationreasoning

    Such flexibility might depend on the ability of the HSPC microenvironment to direct differentiation trajectories, and it is still unclear how much of this cell fate choice is intrinsic to the cells themselves.

    “Such flexibility might depend on the ability of the HSPC microenvironment to direct the differentiation trajectories and it is still unclear how much of this cell fate choice is intrinsic to the cells themselves.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    The genomic advances that have supported studies of human genetic variation have also constrained this field.

    “The genomic advances that have supported studies of human genetic variation have also constrained this field.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Interpretationreasoning

    The possibility that older individuals can develop highly clonal HSPC compartments yet still have ostensibly normal hematopoiesis might indicate a significant degree of flexibility in the lineage output of HSPCs.

    “This possibility might indicate a significant degree of flexibility in the lineage output of HSPCs.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: Older individuals can develop HSPC compartments that are highly clonal and yet still continually regenerate functional tissue and have ostensibly normal hematopoiesis.
  • May combine two claims.

    Premisenone given

    Scalable genotyping and sequencing technologies have empowered numerous population-based studies and enabled the discovery of rare genetic variation that underlies blood diseases.

    “While scalable genotyping and sequencing technologies have empowered numerous population-based studies, these advances have also enabled the discovery of rare genetic variation that underlie blood diseases.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Diamond-Blackfan anemia is a rare disorder characterized by impaired erythropoiesis; most patients have loss-of-function mutations in one of twenty-six distinct ribosome protein genes.

    “For instance, Diamond-Blackfan anemia (DBA) is a rare disorder that is characterized by impaired erythropoiesis; most patients have loss-of-function mutations in one of twenty-six distinct ribosome protein genes (Ulirsch et al., 2018).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Ulirsch et al., 2018 source

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  • Classified as probably not a substantial claim.

    Premisenone given

    Why mutations that affect ubiquitously expressed ribosomes cause a selective defect in erythropoiesis, and not defects in other hematopoietic lineages, was unknown.

    “Why mutations that affect ubiquitously expressed ribosomes cause a selective defect in erythropoiesis, and not defects in other hematopoietic lineages, was unknown.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    The size of the HSC compartment changes dramatically during development and considerably increases in the transition into adulthood.

    “The size of the HSC compartment also changes dramatically during development, and considerably increases in the transition into adulthood (Ganuza et al., 2017; Werner et al., 2015).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Ganuza et al., 2017 source

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    • cites Werner et al., 2015 source

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37 of 37
  • The paper relies on this without support.

    In most cases, the contribution of specific transcriptional regulatory elements to hematopoiesis remains unclear.

    “For instance, in most cases, the contribution of specific transcriptional regulatory elements to hematopoiesis remains unclear.”
  • The paper relies on this without support.

    HSC compartment size estimates vary substantially.

    “An important example is HSC compartment size, for which estimates vary substantially.”
  • The paper relies on this without support.

    Many currently employed barcoding approaches are only efficient enough to label a fraction of hematopoietic stem and progenitor cells.

    “Typically, many currently employed barcoding approaches are only efficient enough to label a fraction of hematopoietic stem and progenitor cells.”
  • The paper relies on this without support.

    Older individuals can develop HSPC compartments that are highly clonal and yet still continually regenerate functional tissue and have ostensibly normal hematopoiesis.

    “Older individuals can develop HSPC compartments that are highly clonal and yet still continually regenerate functional tissue and have ostensibly normal hematopoiesis.”
  • The paper relies on this without support.

    Environmental factors explain some of the inter-individual variation in hematopoiesis.

    “While environmental factors undoubtedly explain some of this variation, genetic factors appear to have a considerable role, both in healthy individuals and in those affected by disease.”
5 of 5

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Senescence of HSCs is the basis of immunosenescence.

    “Senescence of HSCs is the basis of immunosenescence. Senescent HSC differentiate into various types of dysfunctional immune cells, driving immunosenescence.16”

    From Inflammation and aging: signaling pathways and intervention therapies (2023) · cites this paper as [16]

    The Clonal hematopoiesis section describes age-related changes in HSC numbers and clonal expansion, but does not link HSC senescence to immunosenescence. A search for immunosenescence and dysfunctional immune cells found no passage establishing that proposed mechanism; the Outstanding Questions section also notes that some older people retain ostensibly normal hematopoiesis. (LLM, conf=0.72)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Mouse parabiosis account conflicts with cited rat study

    Minor

    The text describes the Brecher and Cronkite experiment as connecting mice, but the cited reference identifies its subjects as rats.

  • Sperm study cited as tracking hematopoietic clones

    Minor

    The sentence cites Wang et al. (2012) among studies tracking hematopoietic clonal dynamics, but the reference describes an analysis of human sperm.

2 of 2

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Authors
Liggett, L. A., & Sankaran, V. G.
Affiliations
Broad Institute (US)
Corresponding author
Sankaran, Vijay G.
Venue
Cell
Publisher
Elsevier BV
Published
2020-09
Volume
182
Issue
6
Pages
1384-1400
ISSN
0092-8674 (ISSN-L)
OpenAlex
W3087350907
Cited by
163
References
207
Citations by year
2026: 20 · 2025: 30 · 2024: 24 · 2023: 30 · 2022: 28 · 2021: 28 · 2020: 3
FWCI
3.49
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (R01 DK103794, R01 HL146500, T32 HL066987)
  • New York Stem Cell Foundation
  • Leukemia and Lymphoma Society
  • MPN Research Foundation
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Health Sciences › Medicine › Hematology › Acute Myeloid Leukemia Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
hematopoiesis, hematopoietic stem cells, lineage commitment, cell fate regulation, regulatory networks, genetic variation, cell tracking, histogenesis
MeSH terms
Human Genetics, Animals, Hematopoiesis, Hematopoietic Stem Cells, Homeostasis, Humans, Transcription Factors, Gene Expression Regulation, Developmental, Cell Lineage, Genomics

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