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@ARTICLE{Sommerkamp:179779,
author = {P. Sommerkamp$^*$ and A. C. Sommerkamp$^*$ and P.
Zeisberger$^*$ and P. L. Eiben$^*$ and A. Narr$^*$ and A.
Korkmaz$^*$ and A. Przybylla$^*$ and M. Sohn$^*$ and F. van
der Hoeven$^*$ and K. Schönig and A. Trumpp$^*$},
title = {{CRISPR}-{C}as9 mediated generation of a conditional
poly({A}) binding protein nuclear 1 ({P}abpn1) mouse model
reveals an essential role for hematopoietic stem cells.},
journal = {Scientific reports},
volume = {12},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {DKFZ-2022-00886},
pages = {7181},
year = {2022},
note = {#EA:A010#LA:A010#},
abstract = {Poly(A) binding protein nuclear 1 (PABPN1) is known for its
role in poly(A) tail addition and regulation of poly(A) tail
length. In addition, it has been shown to be involved in
alternative polyadenylation (APA). APA is a process
regulating differential selection of polyadenylation sites,
thereby influencing protein isoform expression and 3'-UTR
make-up. In this study, we generated an inducible
Pabpn1flox/flox mouse model using crRNA-tracrRNA:Cas9
complexes targeting upstream and downstream genomic regions,
respectively, in combination with a long single-stranded DNA
(ssDNA) template. We performed extensive in vitro testing of
various guide RNAs (gRNAs) to optimize recombination
efficiency for in vivo application. Pabpn1flox/flox mice
were generated and crossed to MxCre mice for validation
experiments, allowing the induction of Cre expression in the
bone marrow (BM) by poly(I:C) (pIC) injections. Validation
experiments revealed successful deletion of Pabpn1 and
absence of PABPN1 protein. Functionally, knockout (KO) of
Pabpn1 led to a rapid and robust depletion of hematopoietic
stem and progenitor cells (HSPCs) as well as myeloid cells,
suggesting an essential role of Pabpn1 in the hematopoietic
lineage. Overall, the mouse model allows an inducible
in-depth in vivo analysis of the role of PABPN1 and APA
regulation in different tissues and disease settings.},
cin = {A010 / B360 / W450 / HD01},
ddc = {600},
cid = {I:(DE-He78)A010-20160331 / I:(DE-He78)B360-20160331 /
I:(DE-He78)W450-20160331 / I:(DE-He78)HD01-20160331},
pnm = {311 - Zellbiologie und Tumorbiologie (POF4-311)},
pid = {G:(DE-HGF)POF4-311},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:35504940},
doi = {10.1038/s41598-022-11203-x},
url = {https://inrepo02.dkfz.de/record/179779},
}