» Articles » PMID: 26004780

Combined Single-Cell Functional and Gene Expression Analysis Resolves Heterogeneity Within Stem Cell Populations

Abstract

Heterogeneity within the self-renewal durability of adult hematopoietic stem cells (HSCs) challenges our understanding of the molecular framework underlying HSC function. Gene expression studies have been hampered by the presence of multiple HSC subtypes and contaminating non-HSCs in bulk HSC populations. To gain deeper insight into the gene expression program of murine HSCs, we combined single-cell functional assays with flow cytometric index sorting and single-cell gene expression assays. Through bioinformatic integration of these datasets, we designed an unbiased sorting strategy that separates non-HSCs away from HSCs, and single-cell transplantation experiments using the enriched population were combined with RNA-seq data to identify key molecules that associate with long-term durable self-renewal, producing a single-cell molecular dataset that is linked to functional stem cell activity. Finally, we demonstrated the broader applicability of this approach for linking key molecules with defined cellular functions in another stem cell system.

Citing Articles

Mitochondria-enriched hematopoietic stem cells exhibit elevated self-renewal capabilities, thriving within the context of aged bone marrow.

Totani H, Matsumura T, Yokomori R, Umemoto T, Takihara Y, Yang C Nat Aging. 2025; .

PMID: 40050412 DOI: 10.1038/s43587-025-00828-y.


Transcriptional activation of regenerative hematopoiesis via microenvironmental sensing.

Itkin T, Houghton S, Schreiner R, Lin Y, Badwe C, Voisin V Nat Immunol. 2025; 26(3):378-390.

PMID: 40000903 DOI: 10.1038/s41590-025-02087-w.


Hematopoietic stem cell discovery: unveiling the historical and future perspective of colony-forming units assay.

Yusoff N, Abd Hamid Z, Budin S, Taib I PeerJ. 2025; 13:e18854.

PMID: 39897489 PMC: 11786707. DOI: 10.7717/peerj.18854.


GATA2 mutated allele specific expression is associated with a hyporesponsive state of HSC in GATA2 deficiency syndrome.

Largeaud L, Fregona V, Jamrog L, Hamelle C, Dufrechou S, Prade N Blood Cancer J. 2025; 15(1):7.

PMID: 39885120 PMC: 11782539. DOI: 10.1038/s41408-025-01213-z.


Niche-derived Semaphorin 4A safeguards functional identity of myeloid-biased hematopoietic stem cells.

Toghani D, Gupte S, Zeng S, Mahammadov E, Crosse E, Seyedhassantehrani N Nat Aging. 2025; .

PMID: 39881190 DOI: 10.1038/s43587-024-00798-7.


References
1.
Wilkinson A, Gottgens B . Transcriptional regulation of haematopoietic stem cells. Adv Exp Med Biol. 2013; 786:187-212. DOI: 10.1007/978-94-007-6621-1_11. View

2.
Beerman I, Bhattacharya D, Zandi S, Sigvardsson M, Weissman I, Bryder D . Functionally distinct hematopoietic stem cells modulate hematopoietic lineage potential during aging by a mechanism of clonal expansion. Proc Natl Acad Sci U S A. 2010; 107(12):5465-70. PMC: 2851806. DOI: 10.1073/pnas.1000834107. View

3.
Amir E, Davis K, Tadmor M, Simonds E, Levine J, Bendall S . viSNE enables visualization of high dimensional single-cell data and reveals phenotypic heterogeneity of leukemia. Nat Biotechnol. 2013; 31(6):545-52. PMC: 4076922. DOI: 10.1038/nbt.2594. View

4.
Yamamoto R, Morita Y, Ooehara J, Hamanaka S, Onodera M, Rudolph K . Clonal analysis unveils self-renewing lineage-restricted progenitors generated directly from hematopoietic stem cells. Cell. 2013; 154(5):1112-1126. DOI: 10.1016/j.cell.2013.08.007. View

5.
Sanjuan-Pla A, Macaulay I, Jensen C, Woll P, Luis T, Mead A . Platelet-biased stem cells reside at the apex of the haematopoietic stem-cell hierarchy. Nature. 2013; 502(7470):232-6. DOI: 10.1038/nature12495. View