| First Author | Huang L | Year | 2022 |
| Journal | Genesis | Volume | 60 |
| Issue | 6-7 | Pages | e23487 |
| PubMed ID | 35633570 | Mgi Jnum | J:340040 |
| Mgi Id | MGI:7330302 | Doi | 10.1002/dvg.23487 |
| Citation | Huang L, et al. (2022) Generation of Sigmar1 conditional knockout mouse using CRISPR-Cas9 gene targeting. Genesis 60(6-7):e23487 |
| abstractText | The Sigma 1 receptor (SIGMAR1) is a transmembrane protein located in the mitochondria-associated endoplasmic reticulum membrane, and plays an important role in cell survival as a pluripotent modulator of a variety of signaling pathways related to neurodegeneration. Though SIGMAR1 is a potential target for neurodegenerative diseases, the specific role of SIGMAR1 in different tissue and cell types remains unclear. Here we reported the generation of Sigmar1 conditional knockout (Sigmar1(loxP) ) mice using CRISPR-Cas9 method to insert loxP sites into the 5'- and 3'-untranslated regions of Sigmar1. We showed that the insertion of loxP sequences did not affect the expression of Sigmar1 and that Sigmar1(loxP/loxP) mice exhibited no detectable visual defects compared with wild-type mice at the early adult stage. By crossing Sigmar1(loxP) mice with retina-specific Six3-Cre and ubiquitous CMV-Cre mice, we confirmed the deletion of Sigmar1 coding regions of exons 1-4, and the retina-specific and global loss of SIGMAR1 expression, respectively. Thus, Sigmar1(loxP) mice provide a valuable tool for unraveling the tissue and cell-type-specific role of Sigmar1. |
