{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T09:07:02Z","timestamp":1789722422817,"version":"4.0.1"},"reference-count":48,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2024,9,18]],"date-time":"2024-09-18T00:00:00Z","timestamp":1726617600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP23K05831"],"award-info":[{"award-number":["JP23K05831"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP21H05033"],"award-info":[{"award-number":["JP21H05033"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007449","name":"Takeda Science Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007449","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008801","name":"Senri Life Science Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008801","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100009633","name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development","doi-asserted-by":"publisher","award":["R01HD088412"],"award-info":[{"award-number":["R01HD088412"]}],"id":[{"id":"10.13039\/100009633","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Adopting Sustainable Partnerships for Innovative Research Ecosystem","award":["JP23jf0126001"],"award-info":[{"award-number":["JP23jf0126001"]}]},{"name":"International Leading Research","award":["JP23K20043"],"award-info":[{"award-number":["JP23K20043"]}]},{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"publisher","award":["INV-001902"],"award-info":[{"award-number":["INV-001902"]}],"id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,1,14]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Acephalic spermatozoa syndrome represents a rare genetic and reproductive disease, which is defined as semen composed of mostly headless spermatozoa. The connecting piece in the neck region, also known as the head-to-tail coupling apparatus, plays a crucial role in the tight linkage between the sperm head and tail. Dysfunction of this structure can lead to separation of sperm heads and tails, and male infertility. Using the mouse as an experimental model, several proteins have been identified as associated with the head-to-tail coupling apparatus and disruption of these proteins causes acephalic spermatozoa. However, the molecular mechanism underlying this morphologic anomaly and head-to-tail coupling apparatus remains elusive. In this study, we focused on coiled-coil domain containing 188 (Ccdc188), which shows testis-enriched expression. To elucidate the physiological role of CCDC188, we generated a knockout mouse line using the CRISPR\/Cas9 system. Ccdc188 knockout male mice were sterile, indicating that CCDC188 is indispensable for male fertility. Most Ccdc188-null spermatozoa were acephalic. Transmission electron microscopy revealed that while the sperm head-to-tail coupling apparatus could assemble properly without CCDC188, the head-to-tail coupling apparatus failed to attach to the nucleus during spermiogenesis, leading to sperm head and neck separation. In addition, we found almost all of the spermatozoa in the cauda epididymis lacked a mitochondrial sheath. Taken together, we demonstrated that CCDC188 plays a crucial role in forming a tight sperm head\u2013neck junction.<\/jats:p>","DOI":"10.1093\/biolre\/ioae137","type":"journal-article","created":{"date-parts":[[2024,9,18]],"date-time":"2024-09-18T17:02:26Z","timestamp":1726678946000},"page":"169-178","source":"Crossref","is-referenced-by-count":6,"title":["Loss of CCDC188 causes male infertility with defects in the sperm head\u2013neck connection in mice"],"prefix":"10.1093","volume":"112","author":[{"given":"Yumiao","family":"Qiu","sequence":"first","affiliation":[{"name":"Research Institute for Microbial Diseases, Osaka University , Osaka,","place":["Japan"]},{"name":"Graduate School of Medicine, Osaka University , Osaka,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keisuke","family":"Shimada","sequence":"additional","affiliation":[{"name":"Research Institute for Microbial Diseases, Osaka University , Osaka,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaito","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Research Institute for Microbial Diseases, Osaka University , Osaka,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masahito","family":"Ikawa","sequence":"additional","affiliation":[{"name":"Research Institute for Microbial Diseases, Osaka University , Osaka,","place":["Japan"]},{"name":"Graduate School of Medicine, Osaka University , Osaka,","place":["Japan"]},{"name":"The Institute of Medical Science, The University of Tokyo , Tokyo,","place":["Japan"]},{"name":"Center for Infectious Disease Education and Research, Osaka University , 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