Microinjection of antisense oligonucleotides into living mouse testis enables lncRNA function study.
Microinjection of antisense oligonucleotides into living mouse testis enables lncRNA function study.
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将反义寡核苷酸显微注射到活体小鼠睾丸中可以进行 lncRNA 功能研究。
DOI:
10.1186/s13578-021-00717-y
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发表时间:
2021-12-17
影响因子:
7.5
通讯作者:
Zheng K
中科院分区:
文献类型:
--
作者:
Chen Z;Ling L;Shi X;Li W;Zhai H;Kang Z;Zheng B;Zhu J;Ye S;Wang H;Tong L;Ni J;Huang C;Li Y;Zheng K
Long non-coding RNAs (lncRNAs) have been the focus of ongoing research in a diversity of cellular processes. LncRNAs are abundant in mammalian testis, but their biological function remains poorly known. Here, we established an antisense oligonucleotides (ASOs)-based targeting approach that can efficiently knock down lncRNA in living mouse testis. We cloned the full-length transcript of lncRNA Tsx (testis-specific X-linked) and defined its testicular localization pattern. Microinjection of ASOs through seminiferous tubules in vivo significantly lowered the Tsx levels in both nucleus and cytoplasm. This effect lasted no less than 10 days, conducive to the generation and maintenance of phenotype. Importantly, ASOs performed better in depleting the nuclear Tsx and sustained longer effect than small interfering RNAs (siRNAs). In addition to the observation of an elevated number of apoptotic germ cells upon ASOs injection, which recapitulates the documented description of Tsx knockout, we also found a specific loss of meiotic spermatocytes despite overall no impact on meiosis and male fertility. Our study detailed the characterization of Tsx and illustrates ASOs as an advantageous tool to functionally interrogate lncRNAs in spermatogenesis. The online version contains supplementary material available at 10.1186/s13578-021-00717-y.
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