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Lu Y, Nagamori I, Kobayashi H, Kojima-Kita K, Shirane K, Chang HY, Nishimura T, Koyano T, Yu Z, Castañeda JM, Matsuyama M, Kuramochi-Miyagawa S, Matzuk MM, Ikawa M. ADAD2 functions in spermiogenesis and piRNA biogenesis in mice. Andrology 2023; 11:698-709. [PMID: 36698249 PMCID: PMC10073342 DOI: 10.1111/andr.13400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 01/17/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023]
Abstract
BACKGROUND Adenosine deaminase domain containing 2 (ADAD2) is a testis-specific protein composed of a double-stranded RNA binding domain and a non-catalytic adenosine deaminase domain. A recent study showed that ADAD2 is indispensable for the male reproduction in mice. However, the detailed functions of ADAD2 remain elusive. OBJECTIVES This study aimed to investigate the cause of male sterility in Adad2 mutant mice and to understand the molecular functions of ADAD2. MATERIALS AND METHODS Adad2 homozygous mutant mouse lines, Adad2-/- and Adad2Δ/Δ , were generated by CRISPR/Cas9. Western blotting and immunohistochemistry were used to reveal the expression and subcellular localization of ADAD2. Co-immunoprecipitation tandem mass spectrometry was employed to determine the ADAD2-interacting proteins in mouse testes. RNA-sequencing analyses were carried out to analyze the transcriptome and PIWI-interacting RNA (piRNA) populations in wildtype and Adad2 mutant testes. RESULTS Adad2-/- and Adad2Δ/Δ mice exhibit male-specific sterility because of abnormal spermiogenesis. ADAD2 interacts with multiple RNA-binding proteins involved in piRNA biogenesis, including MILI, MIWI, RNF17, and YTHDC2. ADAD2 co-localizes and forms novel granules with RNF17 in spermatocytes. Ablation of ADAD2 impairs the formation of RNF17 granules, decreases the number of cluster-derived pachytene piRNAs, and increases expression of ping-pong-derived piRNAs. DISCUSSION AND CONCLUSION In collaboration with RNF17 and other RNA-binding proteins in spermatocytes, ADAD2 directly or indirectly functions in piRNA biogenesis.
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Affiliation(s)
- Yonggang Lu
- Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Ippei Nagamori
- Department of Pathology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Hisato Kobayashi
- Department of Embryology, Nara Medical University, Kashihara, Nara 634-0813, Japan
| | - Kanako Kojima-Kita
- Department of Pathology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Kenjiro Shirane
- Department of Genome Biology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Hsin-Yi Chang
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
- Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Toru Nishimura
- Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Takayuki Koyano
- Division of Molecular Genetics, Shigei Medical Research Institute, Okayama 701-0202, Japan
| | - Zhifeng Yu
- Center for Drug Discovery and Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, United States
| | - Julio M. Castañeda
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Makoto Matsuyama
- Division of Molecular Genetics, Shigei Medical Research Institute, Okayama 701-0202, Japan
| | - Satomi Kuramochi-Miyagawa
- Department of Pathology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
- Department of Genome Biology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
- Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Martin M. Matzuk
- Center for Drug Discovery and Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, United States
| | - Masahito Ikawa
- Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
- Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
- Laboratory of Reproductive Systems Biology, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
- Center for Infectious Disease Education and Research, Osaka University, Osaka 565-0871, Japan
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Kazi S, Castañeda JM, Savolainen A, Xu Y, Liu N, Qiao H, Ramirez‐Solis R, Nozawa K, Yu Z, Matzuk MM, Prunskaite‐Hyyryläinen R. MRNIP interacts with sex body chromatin to support meiotic progression, spermatogenesis, and male fertility in mice. FASEB J 2022; 36:e22479. [PMID: 35920200 PMCID: PMC9544956 DOI: 10.1096/fj.202101168rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 11/24/2022]
Abstract
Meiosis has a principal role in sexual reproduction to generate haploid gametes in both sexes. During meiosis, the cell nucleus hosts a dynamic environment where some genes are transcriptionally activated, and some are inactivated at the same time. This becomes possible through subnuclear compartmentalization. The sex body, sequestering X and Y chromosomes during male meiosis and creating an environment for the meiotic sex chromosome inactivation (MSCI) is one of the best known and studied subnuclear compartments. Herein, we show that MRNIP forms droplet-like accumulations that fuse together to create a distinct subnuclear compartment that partially overlaps with the sex body chromatin during diplotene. We demonstrate that Mrnip-/- spermatocytes have impaired DNA double-strand break (DSB) repair, they display reduced sex body formation and defective MSCI. We show that Mrnip-/- undergoes critical meiocyte loss at the diplotene stage. Furthermore, we determine that DNA DSBs (induced by SPO11) and synapsis initiation (facilitated by SYCP1) precede Mrnip expression in testes. Altogether, our findings indicate that in addition to an emerging role in DNA DSB repair, MRNIP has an essential function in spermatogenesis during meiosis I by forming drop-like accumulations interacting with the sex body.
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Affiliation(s)
- Samina Kazi
- Faculty of Biochemistry and Molecular MedicineUniversity of OuluOuluFinland
| | | | - Audrey Savolainen
- Faculty of Biochemistry and Molecular MedicineUniversity of OuluOuluFinland
| | - Yiding Xu
- Department of Comparative BiosciencesUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA
| | - Ning Liu
- Department of Comparative BiosciencesUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA
| | - Huanyu Qiao
- Department of Comparative BiosciencesUniversity of Illinois at Urbana‐ChampaignUrbanaIllinoisUSA
| | | | - Kaori Nozawa
- Department of Pathology & ImmunologyBaylor College of MedicineHoustonTexasUSA
| | - Zhifeng Yu
- Department of Pathology & ImmunologyBaylor College of MedicineHoustonTexasUSA
- Center for Drug DiscoveryBaylor College of MedicineHoustonTexasUSA
| | - Martin M. Matzuk
- Department of Pathology & ImmunologyBaylor College of MedicineHoustonTexasUSA
- Center for Drug DiscoveryBaylor College of MedicineHoustonTexasUSA
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