Heme and erythropoieis: more than a structural role
Open accessAbstract
Erythropoiesis is the biological process that consumes the highest amount of body iron for heme synthesis. Heme synthesis in erythroid cells is finely coordinated with that of alpha (α) and beta (β)-globin, resulting in the production of hemoglobin, a tetramer of 2α- and 2β-globin chains, and heme as the prosthetic group. Heme is not only the structural component of hemoglobin, but it plays multiple regulatory roles during the differentiation of erythroid precursors since it controls its own synthesis and regulates the expression of several erythroid-specific genes. Heme is synthesized in developing erythroid progenitors by the stage of proerythroblast, through a series of eight enzymatic reactions divided between mitochondria and cytosol. Defects of heme synthesis in the erythroid lineage result in sideroblastic anemias, characterized by microcytic anemia associated to mitochondrial iron overload, or in erythropoietic porphyrias, characterized by porphyrin deposition in erythroid cells. Here, we focus on the heme biosynthetic pathway and on human erythroid disorders due to defective heme synthesis. The regulatory role of heme during erythroid differentiation is discussed as well as the heme-mediated regulatory mechanisms that allow the orchestration of the adaptive cell response to heme deficiency.
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Disruptions to erythropoiesis could lead to anemia-like symptoms, resulting in reduced physical performance, impaired feeding activity, and potential organ damage.
“These disruptions to erythropoiesis could lead to anemia-like symptoms, resulting in reduced physical performance, impaired feeding activity, and potential organ damage (Chiabrando et al., 2014).”
From Deciphering the toxic effects of polystyrene nanoparticles on erythropoiesis at single-cell resolution (2025) · cites this paper as Chiabrando et al., 2014
The sections on erythroid disorders of heme biosynthesis and erythropoietic protoporphyria report anemia associated with disrupted heme synthesis; the latter also describes tissue damage and possible liver failure in that specific disorder. The paper does not report reduced physical performance or impaired feeding activity, or establish that anemia itself causes the organ damage described. Page numbers are unavailable in our copy. (LLM, conf=0.88)
Experimental — accuracy not yet measuredalas1 plays a critical role in the early stages of heme synthesis.
“including alas1, which plays a critical role in the early stages of heme synthesis (Chiabrando et al., 2014).”
From Deciphering the toxic effects of polystyrene nanoparticles on erythropoiesis at single-cell resolution (2025) · cites this paper as Chiabrando et al., 2014
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The Multifaceted Role of Heme in Cancer
Fiorito, V., Chiabrando, D., Petrillo, S., Bertino, F., & Tolosano, E. (2020) · Frontiers in Oncology · doi:10.3389/fonc.2019.01540 · Cited by 129 · see citing works
Self-citationEun, J. K., Medical Research Institute, P. N. U., Medical Research Institute, P. N. U., Hyeon, M. S., Hansong, L., Soyul, A., Yejin, K., Chae, R. L., Kihun, K., Kyungjae, M., et al. (2025) · Zoological Research · doi:10.24272/j.issn.2095-8137.2024.277 · Cited by 10 · see citing works
- Authors
- Chiabrando, D., Mercurio, S., & Tolosano, E.
- Affiliations
- University of Turin (IT)
- Venue
- Haematologica
- Published
- 2014-05-31
- Volume
- 99
- Issue
- 6
- Pages
- 973-983
- ISSN
- 0390-6078 (ISSN-L)
- 1592-8721
- PMC
- PMC4040894
- OpenAlex
- W2049116122
- Cited by
- 192
- References
- 9
- Citations by year
- 2026: 11 · 2025: 25 · 2024: 11 · 2023: 20 · 2022: 18 · 2021: 22 · 2020: 22 · 2019: 16 · 2018: 18 · 2017: 10 · 2016: 8 · 2015: 9
- FWCI
- 0.85
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Haematologica (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Funders
- Regione Piemonte
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Porphyrin Metabolism and Disorders
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hemoglobin structure and function
- Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
- Keywords
- heme biosynthesis, erythropoiesis, erythroid differentiation, hemoglobin, sideroblastic anemia, erythropoietic porphyria, heme deficiency, proerythroblasts, mitochondrial iron overload
- MeSH terms
- Animals, Cell Differentiation, Erythrocytes, Erythropoiesis, Gene Expression Regulation, Hematologic Diseases, Heme, Humans, Mitochondria, Biosynthetic Pathways
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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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