RRC ID 78419
Author Noguchi Y, Onodera Y, Miyamoto T, Maruoka M, Kosako H, Suzuki J.
Title In vivo CRISPR screening directly targeting testicular cells.
Journal Cell Genom
Abstract CRISPR-Cas9 short guide RNA (sgRNA) library screening is a powerful approach to understand the molecular mechanisms of biological phenomena. However, its in vivo application is currently limited. Here, we developed our previously established in vitro revival screening method into an in vivo one to identify factors involved in spermatogenesis integrity by utilizing sperm capacitation as an indicator. By introducing an sgRNA library into testicular cells, we successfully pinpointed the retinal degeneration 3 (Rd3) gene as a significant factor in spermatogenesis. Single-cell RNA sequencing (scRNA-seq) analysis highlighted the high expression of Rd3 in round spermatids, and proteomics analysis indicated that Rd3 interacts with mitochondria. To search for cell-type-specific signaling pathways based on scRNA-seq and proteomics analyses, we developed a computational tool, Hub-Explorer. Through this, we discovered that Rd3 modulates oxidative stress by regulating mitochondrial distribution upon ciliogenesis induction. Collectively, our screening system provides a valuable in vivo approach to decipher molecular mechanisms in biological processes.
Pages 100510
Published 2024-2-27
DOI 10.1016/j.xgen.2024.100510
PII S2666-979X(24)00037-5
PMID 38447574
PMC PMC10943590
MeSH Humans Male RNA, Guide, CRISPR-Cas Systems* Semen* Spermatids Spermatogenesis / genetics Testis
Resource
Human and Animal Cells F9(RCB1555)
DNA material pCAG-HIVgp (RDB04394) pCMV-VSV-G-RSV-Rev (RDB04393) pCMV-SVF-P2A-VSV-G-pRSV-REV (RDB20434)