Andrology最新文献

{"title":"Safety concerns of paternal drug exposure on fertility, pregnancy and offspring: An analysis based on the FDA adverse event reporting system.","authors":"Yanbin Zeng, Wanlong Lin, Wei Zhuang","doi":"10.1111/andr.13790","DOIUrl":"https://doi.org/10.1111/andr.13790","url":null,"abstract":"<p><strong>Background: </strong>Growing evidence indicates that paternal condition significantly influences pregnancy outcomes and offspring health. However, assessing the safety of paternal drug exposure via randomized controlled trials poses ethical challenges, and relevant clinical studies consume a lot of resources to evaluate only a few drugs. Currently, safety data on paternal drug exposure are scarce.</p><p><strong>Objectives: </strong>To investigate the impact of paternal drug exposure on fertility, pregnancy outcomes, and offspring health.</p><p><strong>Materials and methods: </strong>Data from the FDA adverse event reporting system (FAERS) were analyzed (2010-2022). Disproportionality analyses were used to identify signals of each drug-adverse event pair associated with paternal drug exposure in a different hierarchical manner.</p><p><strong>Results: </strong>Out of the 16,180,533 reports, 3210 were related to paternal exposure, encompassing 7808 concomitant adverse events. Drugs used to treat rheumatoid arthritis, cancer, and infections were primary sources of paternal exposure. Analysis identified 115 signals concerning reproductive health. Notably, the signals of diazepam-small for dates baby and finasteride-cryptorchidism were particularly significant (reporting odds ratio, ROR > 800, N > 10). Moreover, spontaneous abortion signals occur frequently in biologics for the treatment of immune inflammation; the use of immunosuppressive drugs was associated with the highest number of congenital anomalies, with the strongest signals for belatacept-skeletal dysplasia, and tacrolimus-talipes. Only mycophenolic acid, estrogen and imatinib have signals on male fertility. Anti-tumor agents had high numbers of each reproductive toxicity, with the highest values of trisomy 13 signals associated with etoposide and cisplatin.</p><p><strong>Conclusions: </strong>This is the first research to fully assess the safety of paternal exposure to the majority of medications in terms of reproduction. Clinical and scientific researchers should pay close attention to the list of risk medications included in this study, particularly the following association combinations: biologics used to treat inflammatory diseases-abortion, diazepam-small for date baby, finasteride-cryptorchidism, etoposide and cisplatin-13 trisomy.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Healthy and unhealthy dietary patterns and sperm quality from the Led-Fertyl study.","authors":"Estefanía Davila-Cordova, Albert Salas-Huetos, Cristina Valle-Hita, María Fernández de la Puente, María Ángeles Martínez, Antoni Palau-Galindo, Claudia Del Egido-González, José María Manzanares-Errazu, Elena Sánchez-Resino, Jordi Salas-Salvadó, Nancy Babio","doi":"10.1111/andr.13789","DOIUrl":"https://doi.org/10.1111/andr.13789","url":null,"abstract":"<p><strong>Background: </strong>Dietary patterns may affect sperm quality, but the scientific evidence is limited.</p><p><strong>Objective: </strong>To evaluate the association between adherence to different a-priori dietary patterns and sperm quality parameters in healthy reproductive-age men.</p><p><strong>Materials and methods: </strong>A cross-sectional analysis was conducted using data from 200 young men enrolled in the Led-Fertyl study. Tertiles of six a-priori dietary patterns were estimated: four healthy dietary patterns [Mediterranean Diet Adherence Screener (MEDAS), Dietary Approaches to Stop Hypertension (DASH), Healthful Plant-Based Diet Index (hPDI) and EAT-Lancet Score], and two unhealthy dietary patterns [Western Diet and Unhealthful Plant-Based Diet Index (uPDI)]. Sperm quality parameters (count, concentration, vitality, total and progressive motility, and normal morphology) were considered the main outcomes.</p><p><strong>Results: </strong>Compared with the lowest tertile, participants in the highest MEDAS tertile had higher total sperm count (β = 3.2;95%CI: 1.0, 5.5) and concentration (β = 1.8;95%CI: 0.6, 3.0), and total (β = 8.2;95%CI: 1.3, 15.1) and progressive motility (β = 7.1;95%CI: 0.2, 14.0). Similarly, participants in the highest hPDI tertile had higher total sperm count (β = 3.4;95%CI: 1.4, 5.5) and concentration (β = 1.2;95%CI: 0.0, 2.3) compared with those in the lowest tertile. When these dietary patterns were modelled as continuous variables (for each 1-point increment in the specific score), an inverse association was found between the uPDI and Western and total sperm count [(β = -2.7;95%CI: -4.8, -0.7) and (β = -3.8;95%CI: -5.8, -1.7), respectively] and sperm concentration [(β = -1.2;95%CI: -2.4, -0.1) and (β = -1.7;95%CI: -2.8, -0.5), respectively]. Compared with participants in the lowest tertile, those in the highest uPDI tertile presented higher odds of abnormal sperm concentration (OR: 4.6;95%CI: 1.0, 19.9) and one or more seminogram abnormalities (OR: 2.3;95%CI: 1.1, 5.0).</p><p><strong>Conclusions: </strong>Our findings suggest that higher adherence to healthy dietary patterns (Mediterranean and healthful plant-based diet) was positively associated with better sperm quality parameters, in contrast, greater adherence to unhealthy dietary patterns was inversely associated.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Replantation following complete penile amputation: Summary of perioperative experience and treatment strategies.","authors":"Hanchao Liu, Biao Dong, Xiaolong Wu, Lin Hua, Mingxiao Zhang, Xiaotao Li, Jiaqin Liu, Junfeng Zhan, Xintao Gao, Rui Chen, Xiaodong Wang, Zhenqing Wang, Zhuolun Sun, Chong Xie, Zhuanxin Jiang","doi":"10.1111/andr.13783","DOIUrl":"https://doi.org/10.1111/andr.13783","url":null,"abstract":"<p><strong>Introduction: </strong>To date, there are only case reports of penile amputation, a rare urological emergency with a low-treatment successful rate, and there are still no advanced, detailed surgical or perioperative treatment plans. Effective treatments for these rare diseases are urgently needed.</p><p><strong>Method: </strong>The researchers summarized the perioperative experience of 20 patients who underwent replantation after complete penile amputation at several hospitals over the past 5 years and shared experience in detail.</p><p><strong>Results: </strong>Only 1 of the 20 surgeries failed, and both urinary and erectile functions were successfully restored in other cases, indicating that the surgical methods and perioperative treatments summarized by researchers are feasible and highly successful for replantation following complete penile amputation.</p><p><strong>Conclusion: </strong>Researchers have summarized the method and perioperative plan for replantation following penile amputation based on a summary of 20 cases, thereby providing guidance for urologists and andrologists.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oligoasthenozoospermia is alleviated in a mouse model by [Gly14]-humanin-mediated attenuation of oxidative stress and ferroptosis.","authors":"Yumeng Liu, Qiwen Feng, Liping Zou, Changhong Zhu, Wei Xia","doi":"10.1111/andr.13786","DOIUrl":"10.1111/andr.13786","url":null,"abstract":"<p><strong>Background: </strong>Oligoasthenozoospermia is a common cause of male infertility, for which effective treatments are urgently needed. Humanin (HN) is a peptide associated with this condition.</p><p><strong>Objectives: </strong>To investigate the ameliorative effect of [Gly14]-Humanin (HNG) on oligoasthenozoospermia and the mechanisms.</p><p><strong>Materials and methods: </strong>Mice were treated with cyclophosphamide (CP) to construct a mice model of oligoasthenozoospermia. The resulting model mice were treated with saline or HNG. Subsequently, the testis weights, organ indices, testicular structure, sperm counts and motilities, litter sizes, and serum testosterone concentrations of the mice were determined. Differential gene expression in testicular tissues was determined by RNA sequencing. TM3, TM4, GC1, and GC2 cells were exposed to erastin to induce ferroptosis, followed by treatment with HNG or HNG + ML385 (a nuclear factor erythroid 2-related factor 2 inhibitor). Levels of reactive oxygen species (ROS), malondialdehyde (MDA), glutathione (GSH), and ferrous ions (Fe²⁺) were determined and their expression of ferroptosis-related proteins was determined by immunofluorescence and western blot.</p><p><strong>Results: </strong>The HNG treatment improved testis and sperm parameters and increased litter size and serum testosterone concentrations in model mice. Kyoto Encyclopaedia of Genes and Genomes pathway enrichment analysis revealed significant differential expression of ferroptosis-related genes. The expression of ferroptosis-related proteins increased in testicular tissues after the HNG treatment. The concentrations of ROS, MDA, and Fe²⁺ decreased and the concentrations of GSH increased in testicular tissues and in TM3 and TM4 cells after HNG treatment. In vitro experiments confirmed that HNG activated the nuclear factor erythroid 2-related factor 2/glutathione peroxidase 4 (Nrf2/GPX4) pathway. However, these effects of HNG were blocked by ML385 treatment.</p><p><strong>Discussion and conclusion: </strong>HNG demonstrated a therapeutic effect on oligoasthenozoospermia in a mouse model by reducing oxidative stress and ferroptosis. In TM3 and TM4 cells, HNG attenuated cellular oxidative stress and inhibited ferroptosis via the Nrf2/GPX4 pathway.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Benchmarks defining high-quality sperm in the common marmoset (Callithrix jacchus).","authors":"Niloofar Sadeghi, Aaryn Mustoe, Corinna N Ross, John R McCarrey, Brian P Hermann","doi":"10.1111/andr.13782","DOIUrl":"10.1111/andr.13782","url":null,"abstract":"<p><strong>Background: </strong>Common marmosets (Callithrix jacchus) are increasingly recognized as valuable nonhuman primates (NHPs) for biomedical research due to their small size and short reproductive cycle and lifespan relative to other NHP species. Maximizing the utility of captive research marmosets, including genetically manipulated animals, will require the use of assisted reproductive techniques (ART) including manipulation, storage, and sharing of marmoset sperm. Here, we identify characteristics of high-quality semen samples and validate a simple method for selecting high-quality sperm.</p><p><strong>Methods: </strong>Computer-assisted sperm analysis (CASA) was used to evaluate sperm quality in semen samples collected from 44 marmosets and assessed the use of the swim-up method for the selection of high-quality sperm was also tested in half the samples as a potential means to optimize in vitro fertilization or intrauterine insemination.</p><p><strong>Results: </strong>For each reference parameter, samples at or below the 5th percentile were categorized as abnormal sperm, while those above the 5th percentile were considered to be normal. Among normal samples, those at or above the 50th percentile were categorized as high-quality. High-quality semen samples exhibited the following characteristics: semen volume ≥ 30 µL; sperm count ≥ 10⁷/ejaculate; total motility ≥ 35%; and normal morphology ≥ 5%. Sperm isolated by swim-up exhibited superior sperm progressive motility (19.7% ± 4.5 vs. 5.6% ± 2.1; P = 0.01) and normal morphology (13.1 ± 1.59 vs. 7.65 ± 1.1; P < 0.001) compared with unselected sperm.</p><p><strong>Conclusion: </strong>This study defines robust, statistically supported reference values for evaluating marmoset semen samples to assist with the identification of optimal sperm donors and the selection of high-quality sperm samples for assisted reproduction. Ultimately, these reference values combined with a validated selection method will contribute to consistent standards for the international sharing of genetically diverse and/or gene-edited marmoset sperm for research and reproduction.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immunoregulation and male reproductive function: Impacts and mechanistic insights into inflammation.","authors":"Yingjie Ma, Xinru Yu, Yi Fan Liu, Bihan Song, Zhengao Sun, Shengtian Zhao","doi":"10.1111/andr.13772","DOIUrl":"https://doi.org/10.1111/andr.13772","url":null,"abstract":"<p><p>This paper investigates the complex relationship between the immune system and male reproductive processes, emphasizing how chronic inflammation can adversely affect male reproductive health. The immune system plays a dual role; it protects and regulates reproductive organs and spermatogenesis while maintaining reproductive health through immune privilege in the testes and the activities of various immune cells and cytokines. However, when chronic inflammation persists or intensifies, it can disrupt this balance, leading to immune attacks on reproductive tissues and resulting in infertility.This study provides a detailed analysis of how chronic inflammation can impair sperm production, sperm quality, and the secretion of gonadal hormones both directly and indirectly. It also delves into the critical roles of testicular immune privilege, various immune cells, and cytokines in sustaining reproductive health and examines the impacts of infections, autoimmune diseases, and environmental factors on male fertility.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Imatinib decreases germ cell survival and germline stem cell proliferation in rodent testis ex vivo and in vitro.","authors":"Anna Eggert, Sini Laasanen, Mirja Nurmio, Aida Wahlgren, Kirsi Jahnukainen, Kim Eerola, Miisael Nieminen, Opeyemi Olotu, Noora Kotaja, Juho-Antti Mäkelä, Jorma Toppari","doi":"10.1111/andr.13777","DOIUrl":"https://doi.org/10.1111/andr.13777","url":null,"abstract":"<p><strong>Background: </strong>Imatinib and dasatinib are tyrosine kinase inhibitors (TKIs) increasingly used to treat several diseases in both children and adults at fertile age. We have previously shown that imatinib has adverse effects on developing testis, and imatinib-treated male patients have been reported to have reduced sperm counts. However, the cellular level effects of imatinib and dasatinib on adult male germ cells and germline stem cells (mGSCs) have not been thoroughly investigated.</p><p><strong>Objectives: </strong>To analyze whether imatinib or dasatinib exposure ex vivo and in vitro is harmful to adult male rodent germ cells and mGSCs.</p><p><strong>Materials and methods: </strong>Seminiferous tubule segments of adult male mouse or rat were cultured in the presence or the absence of imatinib or dasatinib. Stage-specific effects were monitored by ³H-thymidine incorporation assay (DNA synthesis), immunohistochemistry (cleaved Caspase-3; apoptosis), immunofluorescence (KI67, GFRα1, STRA8, c-KIT, LIN28A; proliferation and spermatogonial differentiation) and flow cytometry (Hoechst). Mouse mGSCs were exposed to imatinib and dasatinib to study proliferation, apoptosis, and differentiation.</p><p><strong>Results: </strong>Imatinib decreased stage-specific DNA synthesis, and induced apoptosis in cultured rat seminiferous tubule segments. Imatinib also had an adverse effect on mGSC proliferation both in vitro and ex vivo, but did not induce cell death in cultured mGSCs. Imatinib did not impinge on induction of spermatogonial differentiation but suppressed c-KIT expression in nascent differentiating spermatogonia, providing a plausible mechanism for its pro-apoptotic function in spermatogenic cells. Clinically relevant doses of dasatinib did not induce apoptosis in seminiferous tubules but decreased mGSC colony growth in vitro.</p><p><strong>Conclusions: </strong>Imatinib exposure ex vivo and in vitro impinges on male rodent germ cell proliferation and survival. The plausible mechanism in spermatogenic cells is the inhibition of SCF/c-KIT signaling, and reduced expression of c-KIT. Dasatinib did not show significant adverse effects with clinical doses ex vivo but inhibited mGSC colony growth in vitro.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Short insemination during conventional in vitro fertilization increases embryo quality.","authors":"Luba Nemerovsky, Yehudith Ghetler, Danit Israel Bakhshi, Tal Rom, Ayelet Itskovich, Noga Yeres, Rita Yefimov, Olga Kaplanski, Amir Wiser, Mattan Levi","doi":"10.1111/andr.13781","DOIUrl":"https://doi.org/10.1111/andr.13781","url":null,"abstract":"<p><strong>Aim: </strong>To compare clinical outcomes using short and long co-incubation protocols in sibling oocytes based on embryo morphokinetic outcomes measured by time-lapse incubator with stratification based on a woman's age and sperm quality.</p><p><strong>Design: </strong>Our study included 72 cycles with >6 oocytes retrieved. Sibling oocytes were distributed for two parallel protocols: short (3 h; n = 421) or long (16-20 h; n = 434) insemination, using the same amount of spermatozoa from the same prepared sample. Oocytes were then washed and incubated for 5 days. Time-lapse annotations of embryos were performed by experienced embryologists and artificial intelligence-based Known Implantation Data scores for day 3 and day 5 were calculated with EmbryoScope software.</p><p><strong>Results: </strong>Short-insemination group exhibited a higher blastulation rate, better morphokinetic indicators, and higher Known Implantation Data scores on day 3 and day 5 of the utilized embryos. However, the fertilization rate and clinical pregnancy rate per embryo transfer did not differ between experimental groups. A higher rate of abnormal fertilization (>2 pronuclei) after long insemination was recorded in women under 35 years old or with a total motile sperm count above 5 million and above 40% motility after preparation. A higher rate of usable embryos was observed after short insemination with a total motile sperm count above 30 million before preparation or 5 million and over 40% motility after preparation.</p><p><strong>Conclusions: </strong>Our results suggest that a short insemination protocol results in better embryo quality and should be considered as a favorable protocol, especially in young female patients or male patients with high sperm quality.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Semen static oxidation-reduction potential is not helpful in evaluating male fertility.","authors":"Thiago Pardini Furtado, Vadim Osadchiy, Marcelo Horta Furtado","doi":"10.1111/andr.13759","DOIUrl":"https://doi.org/10.1111/andr.13759","url":null,"abstract":"<p><strong>Background: </strong>Infertility affects a significant percentage of couples worldwide, with male infertility contributing substantially in a considerable number of cases. Research indicates that oxidative stress is a critical factor impacting male fertility.</p><p><strong>Objective: </strong>To explore the relationship between semen static oxidation-reduction potential (sORP), sperm parameters, and validated biomarkers of oxidative stress in infertile men.</p><p><strong>Materials and methods: </strong>This cross-sectional study involved 202 men diagnosed with idiopathic male factor infertility and male partners from couples with unexplained infertility. Multivariable linear regression to query the associations between sORP, sperm parameters, and oxidative aggression biomarkers (lipid peroxidation, mitochondrial membrane potential, annexin V, and sperm DNA fragmentation).</p><p><strong>Results: </strong>SORP has no linear association with any semen analysis parameter. Furthermore, its relationship with validated biomarkers of oxidative stress was inconsistent. sORP was inversely related to lipid peroxidation (multivariable linear regression coefficient: -0.64), positively associated with sperm DNA fragmentation (multivariable linear regression coefficient: 3.20), and unrelated to mitochondrial membrane potential or annexin V.</p><p><strong>Conclusions: </strong>There is no clear or consistent relationship between sORP and validated oxidative aggression biomarkers or sperm parameters. Our findings suggest that sORP is unlikely to be helpful in the evaluation of a male with idiopathic infertility.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142399178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A translation regulator that drives spermatogonial stem cell formation.","authors":"Kun Tan, Miles F Wilkinson","doi":"10.1111/andr.13780","DOIUrl":"https://doi.org/10.1111/andr.13780","url":null,"abstract":"<p><strong>Background: </strong>Spermatogonial stem cells (SSCs) are essential for adult spermatogenesis. Themolecular mechanisms driving SSC generation are poorly understood.</p><p><strong>Objectives: </strong>Zou et al. reported that the precursor cells that give rise to SSCs-prospermatogonia (ProSG) require the RNA-binding protein, DDX20, in orderto undergo the obligatory proliferative re-activation step that proceeds SSC formation.</p><p><strong>Materials and methods: </strong>Literature search.</p><p><strong>Results and conclusion: </strong>We summarize the authors' discovery that the RNA-binding protein, DDX20, iscritical for driving the proliferative re-activation of ProSG, a key step that proceeds SSC generation in vivo. They provide evidence that DDX20 performs this role through its ability to promote the translation of mRNAs encoding proteins known to be essential for cell-cycle and spermatogonial homeostasis. It remains to be determined whether this role is conserved inhumans. It will also be interesting to elucidate whether other post-transcriptional regulators also have roles in early germ cell development. More broadly, it will be fascinating to determine whether post-transcriptional regulators workin concert with transcriptional regulators to drive germ-cell development.</p>","PeriodicalId":7898,"journal":{"name":"Andrology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142387390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}