PXD048865

PXD048865 is an original dataset announced via ProteomeXchange.

Title	Differential requirements for Smarca5 expression during hematopoietic stem cell commitment.
Description	The formation of hematopoietic cells relies on the chromatin remodeling activities of ISWI ATPase SMARCA5 (SNF2H) and its complexes. The Smarca5 null and conditional alleles have been used to study its functions in embryonic and organ development in mice. These mouse model phenotypes vary from embryonic lethality of constitutive knockout to less severe phenotypes observed in tissue-specific Smarca5 deletions, e.g., in the hematopoietic system. Here we show that, in a gene dosage-dependent manner, the hypomorphic allele of SMARCA5 (S5tg) can rescue not only the developmental arrest in hematopoiesis in the hCD2iCre model but also the lethal phenotypes associated with constitutive Smarca5 deletion or Vav1iCre-driven conditional knockout in hematopoietic progenitor cells. Interestingly, the latter model also provided evidence for the role of SMARCA5 expression level in hematopoietic stem cells, as the Vav1iCre S5tg animals accumulate stem and progenitor cells. Furthermore, their hematopoietic stem cells exhibited impaired lymphoid lineage entry and differentiation. This observation contrasts with the myeloid lineage which is developing without significant disturbances. Our findings indicate that animals with low expression of SMARCA5 exhibit normal embryonic development with altered lymphoid entry within the hematopoietic stem cell compartment.
HostingRepository	PanoramaPublic
AnnounceDate	2025-10-27
AnnouncementXML	Submission_2025-10-27_08:46:43.669.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Supported dataset by repository
PrimarySubmitter	Kristyna Pimkova
SpeciesList	scientific name: Mus musculus; NCBI TaxID: 10090; scientific name: Homo sapiens; NCBI TaxID: 9606;
ModificationList	Label:13C(6)15N(2); Label:13C(6)15N(4)
Instrument	Orbitrap Ascend

Revision	Datetime	Status	ChangeLog Entry
0	2024-01-25 00:10:33	ID requested
⏵ 1	2025-10-27 08:46:44	announced

Turkova T, Kokavec J, Zikmund T, Dibus N, Pimkova K, Nemec D, Holeckova M, Ruskova L, Sedlacek R, Cermak L, Stopka T, Differential requirements for Smarca5 expression during hematopoietic stem cell commitment. Commun Biol, 7(1):244(2024) [pubmed]

submitter keyword: quantification, selected reaction monitoring

Tomas Stopka
contact affiliation	BIOCEV, 1st Faculty of Medicine
contact email	tomas.stopka@lf1.cuni.cz
lab head
Kristyna Pimkova
contact affiliation	BIOCEV, 1st Faculty of Medicine
contact email	kristyna.pimkova@lf1.cuni.cz
dataset submitter

Panorama Public dataset URI