Discovery of new glomerular disease-relevant genes by translational profiling of podocytes in vivo.
Discovery of new glomerular disease-relevant genes by translational profiling of podocytes in vivo.
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DOI:
10.1038/ki.2014.204
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发表时间:
2014-12
影响因子:
19.6
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中科院分区:
文献类型:
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Identifying new biomarkers and therapeutic targets for podocytopathies such as focal segmental glomerulosclerosis (FSGS) requires a detailed analysis of transcriptional changes in podocytes over the course of disease. Here we used translating ribosome affinity purification (TRAP) to isolate and profile podocyte-specific mRNA in two different models of FSGS. Expressed eGFP-tagged ribosomal protein L10a in podocytes under the control of the Collagen-1α1 promoter enabled podocyte-specific mRNA isolation in a one-step process over the course of disease. This TRAP protocol robustly enriched known podocyte-specific mRNAs. We crossed col1α1-L10a mice with the actn4−/− and actn4+/K256E models of FSGS and analyzed podocyte transcriptional profiles at 2, 6 and 44 weeks of age. Two upregulated podocyte genes in murine FSGS (CXCL1 and DMPK) were found to be upregulated at the protein level in biopsies from patients with FSGS, validating this approach. There was no dilution of podocyte-specific transcripts during disease. These are the first podocyte-specific RNA expression datasets during aging and in two models of FSGS. This approach identified new podocyte proteins that are upregulated in FSGS and help define novel biomarkers and therapeutic targets for human glomerular disease.
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影响因子:
14.9
作者:
Dougherty JD;Schmidt EF;Nakajima M;Heintz N
通讯作者:
Heintz N
影响因子:
13.6
作者:
He, Liqun;Sun, Ying;Betsholtz, Christer
通讯作者:
Betsholtz, Christer
DOI:
10.1073/pnas.0609184103
发表时间:
2006-12-19
影响因子:
11.1
作者:
Alcaraz, Wendy A.;Gold, David A.;Hamilton, Bruce A.
通讯作者:
Hamilton, Bruce A.
影响因子:
6.6
作者:
Fath T;Fischer RS;Dehmelt L;Halpain S;Fowler VM
通讯作者:
Fowler VM
DOI:
10.1038/labinvest.2010.199
发表时间:
2011-03
期刊:
Laboratory investigation; a journal of technical methods and pathology
影响因子:
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作者:
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