We have located links that may give you full text access.
Rad54/Rad54B deficiency is associated to increased chromosome breakage in mouse spermatocytes.
Mutagenesis 2018 October 12
Rad54 protein is a key player of the homologous recombination pathway, required for deposition and stabilisation of Rad51 foci at double strand breaks. Its role at the meiotic prophase, when double strand breaks are physiologically introduced to allow recombination, is well described. However, the hypothesis that Rad54 deficiency affect chromosome integrity of germ cells in unirradiated and irradiated animals has not been tested yet. In this study, the occurrence of spontaneous and X-ray-induced chromosome aberrations was assessed by analysis of spermatocyte MI spreads or by application of micronucleus assay in early spermatids isolated from wild type and Rad54/Rad54B knockout (KO) mice. In Rad54/Rad54B KO mice, the spontaneous chromosome aberration frequency detected at MI was >10-fold higher than in wild type animals. In addition, after exposure to 1 Gy X-rays at the radiosensitive stage of diplotene, an enhanced response to radiation was observed in Rad54-deficient animals, corresponding to a 2-3 sensitivity factor in comparison to wild type mice. Also the spontaneous frequency of micronucleated round spermatids was on the average 10-fold higher in KO than in wild type mice, indicating that Rad54/Rad54B KO spermatocytes carrying chromosome aberrations are able to pass through the meiotic divisions and to continue the spermatogenesis process. Our results provide the first evidence of the role of Rad54/Rad54B in the maintenance of a stable karyotype during male meiosis, and suggest that Rad54/Rad54B deficiency may impact on the DNA integrity of developing mouse gametes.
Full text links
Trending Papers
A Personalized Approach to the Management of Congestion in Acute Heart Failure.Heart International 2023
Potential Mechanisms of the Protective Effects of the Cardiometabolic Drugs Type-2 Sodium-Glucose Transporter Inhibitors and Glucagon-like Peptide-1 Receptor Agonists in Heart Failure.International Journal of Molecular Sciences 2024 Februrary 21
The Effect of Albumin Administration in Critically Ill Patients: A Retrospective Single-Center Analysis.Critical Care Medicine 2024 Februrary 8
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app