Age-associated imbalance in immune cell regeneration varies across individuals and arises from a distinct subset of stem cells.

aging clonal tracking hematopoietic stem cells lineage bias myelopoiesis

Journal

Cellular & molecular immunology
ISSN: 2042-0226
Titre abrégé: Cell Mol Immunol
Pays: China
ID NLM: 101242872

Informations de publication

Date de publication:
24 Oct 2024
Historique:
received: 24 01 2024
accepted: 23 09 2024
medline: 24 10 2024
pubmed: 24 10 2024
entrez: 24 10 2024
Statut: aheadofprint

Résumé

The age-associated decline in immunity manifests as imbalanced adaptive and innate immune cells, which originate from the aging of the stem cells that sustain their regeneration. Aging variation across individuals is well recognized, but its mechanism remains unclear. Here, we used high-throughput single-cell technologies to compare mice of the same chronological age that exhibited early or delayed immune aging phenotypes. We found that some hematopoietic stem cells (HSCs) in early aging mice upregulated genes related to aging, myeloid differentiation, and stem cell proliferation. Delayed aging was instead associated with genes involved in stem cell regulation and the response to external signals. These molecular changes align with shifts in HSC function. We found that the lineage biases of 30% to 40% of the HSC clones shifted with age. Moreover, their lineage biases shifted in opposite directions in mice exhibiting an early or delayed aging phenotype. In early aging mice, the HSC lineage bias shifted toward the myeloid lineage, driving the aging phenotype. In delayed aging mice, HSC lineage bias shifted toward the lymphoid lineage, effectively counteracting aging progression. Furthermore, the anti-aging HSC clones did not increase lymphoid production but instead decreased myeloid production. Additionally, we systematically quantified the frequency of various changes in HSC differentiation and their roles in driving the immune aging phenotype. Taken together, our findings suggest that temporal variation in the aging of immune cell regeneration among individuals primarily arises from differences in the myelopoiesis of a distinct subset of HSCs. Therefore, interventions to delay aging may be possible by targeting a subset of stem cells.

Identifiants

pubmed: 39443746
doi: 10.1038/s41423-024-01225-y
pii: 10.1038/s41423-024-01225-y
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : U.S. Department of Health & Human Services | National Institutes of Health (NIH)
ID : R01HL138225
Organisme : U.S. Department of Health & Human Services | National Institutes of Health (NIH)
ID : R35HL150826
Organisme : U.S. Department of Health & Human Services | National Institutes of Health (NIH)
ID : 1F31HL149278-01A1
Organisme : Leukemia and Lymphoma Society (Leukemia & Lymphoma Society)
ID : LLS-1370-20
Organisme : California Institute for Regenerative Medicine (CIRM)
ID : EDUC4-12756

Informations de copyright

© 2024. The Author(s).

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Auteurs

Anna Nogalska (A)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Jiya Eerdeng (J)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Samir Akre (S)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Mary Vergel-Rodriguez (M)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Yeachan Lee (Y)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Charles Bramlett (C)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Adnan Y Chowdhury (AY)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Bowen Wang (B)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA.

Colin G Cess (CG)

Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA.
Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, CA, 90089, USA.

Stacey D Finley (SD)

Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA.
Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, CA, 90089, USA.

Rong Lu (R)

Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine, Los Angeles, CA, 90033, USA. ronglu@usc.edu.
Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA. ronglu@usc.edu.

Classifications MeSH