Cited by 126Hematopoietic Stem Cell TransplantationT-cell and B-cell ImmunologyTelomeres, Telomerase, and Senescence

Effects of Aging on the Common Lymphoid Progenitor to Pro-B Cell Transition

Min, Hyeyoung, Montecino-Rodriguez, Encarnacion, Dorshkind, Kenneth·2006·The Journal of Immunology

Abstract

The number of common lymphoid progenitors (CLP) and their pre-pro-B and pro-B cell progeny is reduced in old mice, but the age-related changes responsible for these declines have not been fully elucidated. The aim of this study was to provide additional insights into the impact of senescence on early B cell development by analyzing the CLP and pro-B cell compartments under steady-state conditions and after cytoablation with 5-fluorouracil. 5-Fluorouracil subjects the hemopoietic system to acute stress and has the advantage of revealing defects in progenitors that may otherwise be subtle. The data demonstrate significant, age-related defects in the proliferative potential of early B cell precursors and suggest that the ability of CLP to differentiate into pre-pro-B cells is also compromised by senescence. These age-related changes in early B lymphopoiesis do not result from a general defect in HSC or the bone marrow microenvironment that impairs development in all hemopoietic lineages. Instead, data demonstrating that myeloid progenitor number and developmental potential do not decline with age indicate that B lymphopoiesis is particularly sensitive to defects that accumulate during senescence.

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Crossref · 10.4049/jimmunol.176.2.1007

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  • Common lymphoid progenitors, pre-pro-B cells, and pro-B cells from old mice proliferate less and undergo apoptosis more than young cells.

    “For example, common lymphoid progenitors, pre-pro-B cells, and pro-B cells from old mice do not proliferate as extensively as do young cells, and they exhibit significantly higher rates of apoptosis.”

    From Causes, consequences, and reversal of immune system aging (2013) · cites this paper as [29]

  • The poor quality of lymphoid progenitors produced in aged animals worsens the decline in lymphopoiesis.

    “In addition, the poor quality of the lymphoid progenitors that are generated in the aged further exacerbates the decline in lymphopoiesis (29,32,34).”

    From Causes, consequences, and reversal of immune system aging (2013) · cites this paper as [29]

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Authors
Min, H., Montecino-Rodriguez, E., & Dorshkind, K.
Affiliations
  • University of California, Los Angeles (US)
  • Department of Pathology and Laboratory Medicine and Hemopoietic Malignancies Program, Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California , Los Angeles, CA 90095
Venue
The Journal of Immunology
Published
2006-01
Volume
176
Issue
2
Pages
1007-1012
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1575237114
Cited by
126
References
27
Citations by year
2026: 4 · 2025: 3 · 2024: 6 · 2023: 4 · 2022: 5 · 2021: 5 · 2020: 2 · 2019: 7 · 2018: 4 · 2017: 4 · 2016: 8 · 2015: 5 · 2014: 3 · 2013: 4 · 2012: 10
FWCI
7.32
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (AG-21450, R01AG021450)
  • National Cancer Institute (CAS106042)
  • National Institute of Allergy and Infectious Diseases (AI21256)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
aging, common lymphoid progenitors, pro-B cells, B cell development, senescence, 5-fluorouracil, hematopoietic stem cells, myeloid progenitor cells, bone marrow microenvironment
MeSH terms
Aging, Animals, B-Lymphocytes, Hematopoietic Stem Cells, Mice, Inbred C57BL, Lymphocyte Count, Lymphopoiesis, Myelopoiesis, Cell Proliferation, Mice

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