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Involvement of Endoplasmic Reticulum Stress in Apoptosis of Testicular Cells Induced by Low-dose Radiation 被引量:7
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作者 王志成 王剑锋 +4 位作者 李艳博 郭彩霞 刘扬 方芳 龚守良 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2013年第4期551-558,共8页
Summary: The study examined the role of endoplasmic reticulum stress (ERS) and signaling pathways of inositol-requiring enzyme-1 (IRE1), RNA-activated protein kinase-like ER kinase (PERK) and activating transcr... Summary: The study examined the role of endoplasmic reticulum stress (ERS) and signaling pathways of inositol-requiring enzyme-1 (IRE1), RNA-activated protein kinase-like ER kinase (PERK) and activating transcription factor-6 (ATF6) in apoptosis of mouse testicular cells treated with low-dose radiation (LDR). In the dose-dependent experiment, the mice were treated with whole-body X-ray irradiation at different doses (25, 50, 75, 100 or 200 mGy) and sacrificed 12 h later. In the time-dependent experiment, the mice were exposed to 75 mGy X-ray irradiation and killed at different time points (3, 6, 12, 18 or 24 h). Testicular cells were harvested for experiments. H202 and NO concentrations, and Ca2+-ATPase activity were detected by biochemical assays, the calcium ion concentration ([Ca2+]i) by flow cytometry using fluo-3 probe, and GRP78 mRNA and protein expressions by quantitative real-time RT-PCR (qRT-PCR) and Western blotting, respectively. The mRNA expressions of S-XBP1, JNK, caspase-12 and CHOP were measured by qRT-PCR, and the protein expressions of IREla, S-XBP1, p-PERK, p-elF2a, ATF6 p50, p-JNK, pro-caspase-12, cleaved caspase-12 and CHOP by Western blot- ting. The results showed that the concentrations of H202 and NO, the mR_NA expressions of GRP78, S-XBP1, JNK, caspase-12 and CHOP, and the protein expressions of GRP78, S-XBP1, IREla, p-PERK, p-elF2a, ATF6 p50, p-JNK, pro-caspase-12, cleaved caspase-12 and CHOP were significantly increased in a time- and dose-dependent manner after LDR. But the [Ca2]i and Ca2-ATPase activities were sig nificantly decreased in a time and dose-dependent manner. It was concluded that the ERS, regulated by IRE 1, PERK and ATF6 pathways, is involved in the apoptosis of testicular cells in LDR mice, which is associated with ERS-apoptotic signaling molecules of JNK, caspase-12 and CHOP. 展开更多
关键词 low dose radiation testicular cells endoplasmic reticulum stress APOPTOSIS SIGNALINGPATHWAY
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Management of Testicular Cancers in Brazzaville
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作者 Roland Bertile Banga-Mouss Yanick Dimi Nyanga +8 位作者 Brice Nkoua Epala Armel Melvin Atipo Ondongo Steve Aristid Ondziel-Opara Eliane Ndounga Alexis Bolenga Louis Constant Mbele Mantsouaka Judith Nsonde Malanda Aanani Séverin Wencesl Odzébé Prosper Alain Bouya 《Open Journal of Urology》 2024年第5期324-332,共9页
Introduction: Testicular cancer accounts for 5% of urological tumors, predominantly affecting young men. The aim of our study was to report the diagnostic and evolutionary aspects of testicular cancer cases treated in... Introduction: Testicular cancer accounts for 5% of urological tumors, predominantly affecting young men. The aim of our study was to report the diagnostic and evolutionary aspects of testicular cancer cases treated in our center. Patients and Methods: A retrospective study conducted over a 15-year period involving 12 patients treated for testicular cancer at the University Hospital of Brazzaville. Results: The median age was 31 years (range 11 to 49 years), with a median consultation delay of 10.6 months (range 3 to 27 months). Scrotal mass was the most common reason for consultation. Cancer was bilateral in two patients. Two patients were admitted with metastatic disease. Histopathological examination favored germ cell tumors in 7 cases, two cases of non-Hodgkin’s malignant lymphoma, and one case of epididymo-testicular adenocarcinoma. Adjuvant chemotherapy resulted in complete remission in patients with germ cell tumors. However, neoadjuvant chemotherapy was not effective in patients admitted with advanced-stage disease. Conclusion: Testicular cancer is a rare condition that is curable in the majority of cases, but its management is often complicated in our setting due to delayed diagnosis caused by taboos surrounding genital organ pathologies. 展开更多
关键词 testicular Cancer Germ cell Tumor CISPLATIN testicular Lymphoma testicular Adenocarcinoma
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Low hypoxia inducible factor-1α(HIF-1α)expression in testicular germ cell tumors--a major reason for enhanced chemosensitivity? 被引量:4
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作者 niraj shenoy roxana dronca +6 位作者 fernando quevedo stephen a boorjian john cheville brian costello manish kohli thomas witzig lance pagliaro 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2017年第4期374-378,共5页
The molecular basis for enhanced chemosensitivity of testicular germ cell tumors (GCT) has been an area of great interest, as it could potentially give us therapeutic leads in other resistant malignancies. Thus far,... The molecular basis for enhanced chemosensitivity of testicular germ cell tumors (GCT) has been an area of great interest, as it could potentially give us therapeutic leads in other resistant malignancies. Thus far, however, the increased sensitivity of C&T has been variously attributed to multiple factors -- an inability to detoxify cisplatin, a lack of export pumps, an inability to repair the DNA damage, an intact apoptotic cascade and lack of p53 mutation; but a unifying underlying etiology leading to the aforementioned processes and having a translational implication has so far been elusive. Herein, we offer evidence to support a potential significant role for the previously demonstrated low hypoxia inducible factor-la (HIF-la) expression in mediating the general exquisite chemosensitivity of testicular GCT, through the aforementioned processes. This molecular mechanism based hypothesis could have a significant translational implication in platinum refractory GCT as well as other platinum resistant malignancies. 展开更多
关键词 Hypoxia inducible factor-la (HIF-la) testicular germ cell tumor CHEMOSENSITIVITY
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Effect of fexofenadine, a mast cell blocker, in infertile men with significantly increased testicular mast cells 被引量:1
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作者 Selahittin ayan Duygu Dusmez Apa Erdem Akbay 《Asian Journal of Andrology》 SCIE CAS CSCD 2002年第4期291-294,共4页
Aim: To investigate the role of fexofenadine, a mast cell blocker, on semen quality in the treatment of infertile men. Methods: The study included 16 Turkish idiopathic infertile men with azoospermia or oligozoospermi... Aim: To investigate the role of fexofenadine, a mast cell blocker, on semen quality in the treatment of infertile men. Methods: The study included 16 Turkish idiopathic infertile men with azoospermia or oligozoospermia who underwent testicular biopsy to examine mast cells containing tryptase. In all patients, a complete medical history, clinical examination, semen analysis and serum hormone assay were carried out. The biopsy specimens were immunohistochemically stained with antihuman tryptase for mast cells. The number of total mast cells per seminiferous tubule was calculated and recorded as mast cell index. The patients were divided into two groups according to their mast cell index: the higher (≥1, n=9) and the lower (<1, n=7) index groups. Fexofenadine was administered orally at a dose of 180 mg/day for 4 to 9 months. Pre-and post-treatment semen parameters, including total motile sperm counts (TMC) were recorded and compared. Spontaneous pregnancies after the treatment were registered. Results: There was no statistically significant difference in TMC between the pre-treatment and post-treatment values in patients with higher and lower mast cell index (P≥0.05). In both groups, nobody had a significant response to the treatment and there was no spontaneous pregnancy after the treatment. Conclusion: Although testicular dysfunction is closely associated with increased number of testicular mast cells, fexofenadine, a mast cell blocker, appears not having any benefit in the treatment of Turkish infertile men with a significant increase in testicular mast cells. (Asian J Androl 2002 Dec; 4: 291-294) 展开更多
关键词 male infertility testicular biopsy mast cells mast cell blocker FEXOFENADINE semen quality
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Programmed cell death protein 4 expression in renal cell carcinoma, penile carcinoma and testicular germ cell cancer
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作者 Nicolas Fischer Friederike G?ke +4 位作者 Philip Kahl Vera Splittst??er Brigitte Lankat-Buttgereit Stefan C Müller J?rg Ellinger 《World Journal of Clinical Urology》 2014年第3期351-357,共7页
AIM:To investigate the expression of programmed cell death 4(Pdcd4)tumor suppressor gene in tissue specimen of renal cell carcinoma(RCC),testicular germ cell cancer and penile cancer.METHODS:Pdcd4 expression was studi... AIM:To investigate the expression of programmed cell death 4(Pdcd4)tumor suppressor gene in tissue specimen of renal cell carcinoma(RCC),testicular germ cell cancer and penile cancer.METHODS:Pdcd4 expression was studied using immunohistochemistry in 188 cases of RCC and 28 controls(including 9 oncocytoma);in 74 cases of penile carcinoma(including 17 metastatic tissue samples)and26 controls;in 11 cases of seminoma,in 14 cases of non-seminoma and 5 controls.RESULTS:Control tissues exhibited strong core and cytoplasmatic Pdcd4 staining.In contrast,core and cy-toplasmatic Pdcd4 levels were significantly decreased in cancer tissues.CONCLUSION:Our data support a role for Pdcd4(down-)regulation in urologic tumors.Interestingly,Pdcd4 expression seem to be a potential diagnostic marker for renal or penile tumors. 展开更多
关键词 Programmed cell death 4 SEMINOMA Nonseminoma testicular cancer Renal cell CARCINOMA PENILE CARCINOMA EXPRESSION Apoptosis Immunohistochemistry
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Occlusive Syndrome Revealing a Nonseminoma Germ Cell Tumor Metastatic Testicular
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作者 N. M. Diagne Gueye R. Kane +2 位作者 Y. Diallo A. R. Ndiaye A. R. Ndiaye 《Open Journal of Urology》 2016年第9期147-153,共7页
Testicular cancer is rare. The authors report the case of a young Senegalese 21, who has consulted for an occlusive syndrome evolving for 48 hours that prompted his hospitalization. Note that the patient has consulted... Testicular cancer is rare. The authors report the case of a young Senegalese 21, who has consulted for an occlusive syndrome evolving for 48 hours that prompted his hospitalization. Note that the patient has consulted several times to persistent inguinal scrotal pain, a big right purse with chronic analgesic requirements and anti-inflammatory. Occlusive before this table, abdominal pelvic CT was performed and highlighted the presence of lung metastases, a large pelvic lymph node casting bridging the inter vesico-rectal space and responsible for extrinsic compression of the small intestine, lymph node inter casting aorto-cellar and latero aortic liver and multiple secondary locations. Faced with this bundle of arguments, clinical and laboratory, metastatic testicular tumor was raised and measured tumor markers. A right orchiectomy by inguinal was made with histology: A non-seminomatous germ cell tumor stage III. After orchiectomy germinal markers were still high and there was the problem of persistent occlusive syndrome despite resuscitation. A chemotherapy regimen was initiated with 4 cycles of chemotherapy according to the protocol BEP (bleomycin, etoposide, cisplatin). A significant regression of occlusive syndrome with a decline in clinical symptoms was noted. The revaluation at 3 months, 6 months and 1 year were highlighted: A normal clinical examination associated with a persistent correction rate of germline markers and lack of active lesion at thoraco-abdominopelvic CT. 展开更多
关键词 testicular Cancer Non Seminomatous Germ cell Tumor Intestinal Obstruction
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神经胶质细胞系衍生神经营养因子和雄激素受体在手术诱导隐睾小鼠睾丸管周细胞中的表达
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作者 吴飞 潮敏 +2 位作者 张殷 张晔 蒋加斌 《中山大学学报(医学科学版)》 CAS CSCD 北大核心 2024年第1期85-92,共8页
【目的】探讨神经胶质细胞系衍生神经营养因子(GDNF)和雄激素受体(AR)在隐睾症小鼠睾丸管周细胞中的表达水平及对隐睾症导致生精功能障碍的理论意义。【方法】30只5周龄雄性ICR小鼠采用随机数字表法随机分配至6组中,随机抽取3组15只小... 【目的】探讨神经胶质细胞系衍生神经营养因子(GDNF)和雄激素受体(AR)在隐睾症小鼠睾丸管周细胞中的表达水平及对隐睾症导致生精功能障碍的理论意义。【方法】30只5周龄雄性ICR小鼠采用随机数字表法随机分配至6组中,随机抽取3组15只小鼠进行手术诱导隐睾,其余3组为作为对照组进行假手术处理。分别于4 d、7 d、14 d后取各组睾丸组织,然后测量睾丸体积、观察睾丸组织病理,提取各组睾丸管周细胞后利用免疫荧光、Re⁃al-Time PCR和蛋白质印记法检测AR和GDNF的mRNA和蛋白的表达。【结果】对照组4 d、7 d、14 d小鼠的睾丸体积分别为(125.58±19.22)mm^(3)、(123.45±20.12)mm^(3)、(140.09±13.62)mm^(3);睾丸各级生精细胞排列整齐、层次清楚,可见较多精子细胞,生精小管周围管周细胞形态规则,呈梭形围绕小管周围,细胞厚度均一;ARmRNA的表达量分别为1.00±0.05、1.06±0.07、1.19±0.13GDNFmRNA的表达量分别为1.00±0.04、1.09±0.05、1.10±0.07;AR蛋白的表达量分别为1.01±0.01、0.79±0.02、1.01±0.04;GDNF蛋白的浓度分别为(18.68±0.43)pg/mL、(14.39±0.36)pg/mL、(16.88±0.37)pg/mL。隐睾组4 d、7 d、14 d小鼠的睾丸体积分别为(115.64±3.91)mm^(3)、(69.51±14.97)mm^(3)、(44.86±5.56)mm^(3);睾丸各级生精细胞排列紊乱、层次不清、结构破坏,曲细精管周围管周细胞萎缩、弯曲断裂;ARmRNA的表达量分别为0.76±0.06、0.53±0.04、0.29±0.02;GDNFmRNA的表达量分别为0.72±0.05、0.42±0.02、0.30±0.03;AR蛋白的表达量分别为0.54±0.02、0.98±0.04、0.31±0.01;GDNF蛋白的浓度分别为(8.50±0.34)pg/mL、(17.44±0.32)pg/mL、(6.83±0.34)pg/mL。上述指标与对照组相比,除了4 d的睾丸体积差异无统计学意义(P>0.05),其他均有统计学差异(P<0.05)。对照组中3个时间点的睾丸体积、AR和GDNF的mRNA、蛋白表达量的差异无统计学意义(P>0.05),隐睾组3个时间点的睾丸体积、AR和GDNF的mRNA、蛋白表达量呈逐渐下降趋势且各组之间的差异均有统计学意义(P<0.05)。【结论】在手术诱导隐睾小鼠中,睾丸管周细胞的AR和GDNF的表达水平随着诱导时间的延长呈现显著下降。AR和GDNF在隐睾症介导睾丸管周细胞功能的损伤中有重要作用。本研究为阐明隐睾症导致生精功能障碍的机制研究提供理论基础。 展开更多
关键词 隐睾症 管周细胞 胶质细胞系衍生神经营养因子 雄激素受体
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人绒毛膜促性腺激素激发试验在性发育异常儿童中的诊断作用评估
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作者 梁翠丽 刘国昌 +6 位作者 程静 牛会林 伏雯 张丽瑜 贾炜 张文 刘丽 《中国当代儿科杂志》 CAS CSCD 北大核心 2024年第2期158-163,共6页
目的探讨人绒毛膜促性腺激素(human chorionic gonadotrophin,hCG)激发试验在诊断不同分型性发育异常(disorder of sexual development,DSD)患儿中的价值。方法回顾性分析132例DSD患儿,按染色体核型分为46,XX组(n=10)、46,XY组(n=87)、... 目的探讨人绒毛膜促性腺激素(human chorionic gonadotrophin,hCG)激发试验在诊断不同分型性发育异常(disorder of sexual development,DSD)患儿中的价值。方法回顾性分析132例DSD患儿,按染色体核型分为46,XX组(n=10)、46,XY组(n=87)、性染色体异常组(n=35),比较各组患儿hCG激发试验前后的性激素水平,分析形态学上是否存在睾丸组织对hCG激发试验结果的影响。结果3组患儿激发试验后睾酮(testosterone,T)增加倍数比较差异无统计学意义(P>0.05)。46,XY组中,5α-还原酶2缺乏症患儿激发试验后的T与双氢睾酮(dihydrotestosterone,DHT)比值高于其他46,XY DSD患儿(P<0.05)。形态学上,有睾丸组织的DSD患儿激发试验后T增加倍数高于无睾丸组织患儿(P<0.05)。结论hCG激发试验对于评估不同类型的DSD患儿的睾丸间质细胞存在和功能均具有重要价值,对于性腺性质不明确的DSD患儿,均建议行hCG激发试验。 展开更多
关键词 性发育异常 人绒毛膜促性腺激素激发试验 睾丸间质细胞 睾酮 儿童
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Bta-miR-101对牛睾丸支持细胞增殖、凋亡及分泌的影响
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作者 虎巧燕 翟相钦 +3 位作者 李一丹 韩家乐 雷初朝 党瑞华 《畜牧兽医学报》 CAS CSCD 北大核心 2024年第3期1040-1051,共12页
旨在探究bta-miR-101对牛睾丸支持细胞增殖、凋亡及分泌的影响。本研究采集3日龄(n=3)与13月龄(n=3)健康公牛的睾丸组织,构建安格斯牛组织表达谱,验证bta-miR-101在两个时期的差异表达。利用在线工具(TargetScan、miRTarBase、miRDB及mi... 旨在探究bta-miR-101对牛睾丸支持细胞增殖、凋亡及分泌的影响。本研究采集3日龄(n=3)与13月龄(n=3)健康公牛的睾丸组织,构建安格斯牛组织表达谱,验证bta-miR-101在两个时期的差异表达。利用在线工具(TargetScan、miRTarBase、miRDB及miRWalk)预测miR-101的靶基因,并利用KOBAS对其进行GO和KEGG通路富集分析。将miR-101的模拟物与抑制物分别转染至牛睾丸支持细胞中,利用RT-qPCR、Western Blotting以及CCK-8等技术检测细胞增殖、凋亡及分泌相关基因表达量以及细胞增殖系数。通过4种在线软件预测到26个bta-miR-101的共同靶基因,GO和KEGG富集分析发现这些基因主要富集在核质、蛋白质结合、JAK-STAT的受体信号通路上,这些信号通路与细胞分化、细胞周期、细胞凋亡等生物过程有着不同程度的关联。RT-qPCR结果显示,bta-miR-101在牛初生期睾丸组织中的表达量显著高于性成熟时期(P<0.05),与实验室前期测序结果一致。转染miR-101的模拟物与抑制物后,发现相较于对照组,miR-101 mimics可以促进增殖相关基因在mRNA和蛋白水平的表达量,并显著升高支持细胞的增殖系数,同时抑制凋亡基因在mRNA和蛋白水平的表达量(P<0.05);miR-101 inhibitor可以抑制增殖相关基因在mRNA和蛋白水平的表达量,同时促进凋亡基因在mRNA和蛋白水平的表达量(P<0.05)。在细胞分泌方面,miR-101对分泌标志基因GDNF、BMP4的转录有影响,但对雄激素结合蛋白的分泌影响不显著。综上所述,miR-101促进牛睾丸未成熟支持细胞的增殖并抑制其凋亡,对雄激素结合蛋白的分泌无显著影响。 展开更多
关键词 牛睾丸支持细胞 miR-101 增殖 凋亡
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热应激对雄性哺乳动物生殖机能影响的研究
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作者 肖艺梅 王胜男 +2 位作者 许悦雯 何晓琳 尹福泉 《畜牧兽医学报》 CAS CSCD 北大核心 2024年第1期11-21,共11页
作为雄性动物产生精子和分泌雄激素的重要器官,睾丸的温度调节对其正常生育能力的维持至关重要。热应激诱导的睾丸细胞氧化应激、凋亡、DNA损伤、血睾屏障损伤、雄激素分泌异常等一系列反应,会对睾丸细胞、精子质量、精子使卵母细胞受... 作为雄性动物产生精子和分泌雄激素的重要器官,睾丸的温度调节对其正常生育能力的维持至关重要。热应激诱导的睾丸细胞氧化应激、凋亡、DNA损伤、血睾屏障损伤、雄激素分泌异常等一系列反应,会对睾丸细胞、精子质量、精子使卵母细胞受精的能力和支持胚胎发育的能力产生不利的影响。本文旨在综述睾丸的温度调节机制、热应激对睾丸细胞和精子质量的负面影响,以期为热应激对雄性生殖的影响研究提供参考。 展开更多
关键词 热应激 睾丸细胞 精子质量 受精能力
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敲低锌转运蛋白ZIP7抑制小鼠睾丸支持细胞增殖的研究
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作者 特力格尔 刘璇 +3 位作者 李媛静 李欢欢 王树松 马婧 《生殖医学杂志》 CAS 2024年第2期201-207,共7页
目的探讨敲低锌转运蛋白ZIP7对小鼠睾丸支持细胞增殖的影响及其可能的作用机制。方法使用小鼠睾丸支持细胞系(TM4细胞)进行实验,TM4细胞培养后采用细胞免疫荧光染色法观察ZIP7在TM4细胞中的亚细胞定位;将TM4细胞分为对照组和ZIP7 siRNA... 目的探讨敲低锌转运蛋白ZIP7对小鼠睾丸支持细胞增殖的影响及其可能的作用机制。方法使用小鼠睾丸支持细胞系(TM4细胞)进行实验,TM4细胞培养后采用细胞免疫荧光染色法观察ZIP7在TM4细胞中的亚细胞定位;将TM4细胞分为对照组和ZIP7 siRNA组(采用siRNA转染敲低TM4细胞中ZIP7表达),采用CCK8法检测两组细胞的增殖能力,使用DHE荧光探针检测两组细胞内活性氧(ROS)的水平,实时荧光定量PCR(qPCR)检测两组细胞内ZIP7 mRNA的相对表达量,Western blot法检测两组细胞内ZIP7、c-Jun氨基末端激酶(JNK)、磷酸化JNK(p-JNK)、细胞外信号调节激酶(ERK)及磷酸化ERK(p-ERK)蛋白表达水平。结果细胞免疫荧光染色法结果显示ZIP7定位于TM4细胞的内质网上。siRNA干扰使得ZIP7 siRNA组细胞中ZIP7的mRNA和蛋白表达显著低于对照组(P<0.05);siRNA转染敲低TM4细胞内ZIP7的表达后,ZIP7 siRNA组细胞增殖能力显著低于对照组(P<0.001),细胞内ROS水平显著高于对照组(P<0.001)。与对照组比较,ZIP7 siRNA组细胞的p-ERK/ERK蛋白表达无显著差异(P>0.05),而p-JNK/JNK蛋白表达显著增加(P<0.05)。结论敲低ZIP7可以明显抑制TM4细胞增殖,该过程可能通过细胞内ROS水平的升高及JNK磷酸化的激活介导。 展开更多
关键词 锌转运蛋白 小鼠睾丸支持细胞 活性氧 C-JUN氨基末端激酶 细胞增殖
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拟穴青蟹DDX5基因的表达及功能初步分析
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作者 赵逗裟 姚成杰 +1 位作者 张子平 王艺磊 《应用海洋学学报》 CAS CSCD 北大核心 2024年第2期225-235,共11页
拟穴青蟹(Scylla paramamosain)是我国东南沿海重要的经济养殖蟹类之一。DDX5基因是DEAD-box解旋酶基因家族中的成员,已有研究表明其在生殖细胞的成熟分化及功能维持中起重要的调控作用。我们从拟穴青蟹转录组数据库中筛选获得了DDX5(Sp... 拟穴青蟹(Scylla paramamosain)是我国东南沿海重要的经济养殖蟹类之一。DDX5基因是DEAD-box解旋酶基因家族中的成员,已有研究表明其在生殖细胞的成熟分化及功能维持中起重要的调控作用。我们从拟穴青蟹转录组数据库中筛选获得了DDX5(SpDDX5)基因序列,采用实时荧光定量PCR技术分析了其在成熟青蟹各组织、性腺各发育时期及胚胎各发育时期的表达模式。此外,利用RNAi技术分析了SpDDX5在性腺发育中可能发挥的作用。结果如下:SpDDX5的开放阅读框长1 893 bp,编码630个氨基酸,具有DEXDc和HELICc两个结构域。SpDDX5在拟穴青蟹的各组织中广泛表达,且在精巢中的表达水平明显高于其他组织(P<0.05);在精巢发育过程中,SpDDX5的表达水平逐渐降低;在胚胎发育过程中,SpDDX5的表达水平逐渐升高。干扰SpDDX5后,生殖细胞分子标记基因Vasa和Nanos表达上调,性腺发育相关基因foxl-2表达下调,Dmrt家族基因Dsx表达上调,Dmrt-like和idmrt-2表达下调。根据以上结果,我们推测SpDDX5基因可能在拟穴青蟹生殖细胞发育和精巢发育中发挥重要作用。 展开更多
关键词 海洋生物学 DDX5基因 DEAD-box解旋酶 RNAI 生殖细胞发育 精巢发育 拟穴青蟹
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野外采集牦牛睾丸组织的冷冻保存及其生精细胞的复苏培养研究
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作者 舒适 易川平 +6 位作者 付长其 罗辉 王国文 黄荣 赵旺生 蔡欣 彭巍 《中国牛业科学》 2024年第2期19-25,共7页
采用玻璃化冷冻方法对野外采集的牦牛睾丸组织进行冷冻,通过HE(hematoxylin-eosin)染色分析发现玻璃化冷冻后的牦牛睾丸组织曲细精管结构保存较完好,曲细精管可见大量形态完好的各类生精细胞。采用台盼蓝染色检测细胞活率,发现冷冻复苏... 采用玻璃化冷冻方法对野外采集的牦牛睾丸组织进行冷冻,通过HE(hematoxylin-eosin)染色分析发现玻璃化冷冻后的牦牛睾丸组织曲细精管结构保存较完好,曲细精管可见大量形态完好的各类生精细胞。采用台盼蓝染色检测细胞活率,发现冷冻复苏后细胞活率可达80.20%。分别通过生精细胞和精原干细胞标志蛋白DDX4和GFRA1免疫荧光染色发现复苏后培养14 d后的生精细胞和精原干细胞的数量明显减少。通过RT-qPCR对复苏后不同实验处理组牦牛睾丸细胞标志基因的表达分析,发现培养30 d的生精细胞中的精原干细胞标志基因%Thy1和UCHL1%的表达量显著增高。因此,玻璃化冷冻保存的牦牛睾丸组织中曲细精管及其生精细胞得到了较好的保护,该方法对于其他哺乳动物生精细胞的长久有效保存具有重要的参考价值。 展开更多
关键词 牦牛 睾丸组织 玻璃化冷冻 细胞复苏 细胞培养
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自噬在大鼠睾丸扭转致缺血再灌注损伤中的作用机制
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作者 胡志 徐律 +4 位作者 孙伟 付桥 张炜 陈一衍 褚浩 《海军军医大学学报》 CAS CSCD 北大核心 2024年第1期57-63,共7页
目的探讨自噬在大鼠睾丸扭转所致缺血再灌注损伤(I/RI)中的作用机制。方法将40只健康雄性SD大鼠随机分为假手术组、I/RI组、I/RI+雷帕霉素(RAPA)组和I/RI+3-甲基腺嘌呤(3-MA)组,每组10只。后3组大鼠建立左侧睾丸扭转(720°,1 h)复... 目的探讨自噬在大鼠睾丸扭转所致缺血再灌注损伤(I/RI)中的作用机制。方法将40只健康雄性SD大鼠随机分为假手术组、I/RI组、I/RI+雷帕霉素(RAPA)组和I/RI+3-甲基腺嘌呤(3-MA)组,每组10只。后3组大鼠建立左侧睾丸扭转(720°,1 h)复位模型,I/RI+RAPA组和I/RI+3-MA组大鼠造模前分别给予自噬激动剂RAPA和自噬抑制剂3-MA干预。于睾丸复位12 h后取各组大鼠左侧睾丸和附睾,收集精子进行精子质量分析,采用H-E染色观察睾丸组织病理变化,采用试剂盒检测睾丸组织中超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量、总抗氧化能力(T-AOC),采用TUNEL染色检测睾丸组织细胞凋亡水平,通过蛋白质印迹法检测睾丸组织中自噬相关蛋白(Beclin1、p62)和凋亡相关蛋白(Bcl2、Bax、cleaved caspase 3)表达水平。结果与假手术组比较,I/RI组大鼠精子质量下降,睾丸曲细精管排列松散,生殖细胞减少、脱落,睾丸组织SOD活性、T-AOC降低(均P<0.05),MDA含量升高(P<0.05),p62和Bcl2蛋白表达水平降低(均P<0.05),Beclin1、Bax和cleaved caspase 3蛋白表达水平升高(均P<0.05),凋亡生殖细胞明显增多。与I/RI组比较,I/RI+RAPA组大鼠精子质量提高,睾丸曲细精管排列正常,睾丸组织SOD活性、T-AOC升高(均P<0.05),MDA含量降低(P<0.05),Beclin1和Bcl2蛋白表达水平升高(均P<0.05),p62、Bax和cleaved caspase 3蛋白表达水平降低(均P<0.05),凋亡生殖细胞减少;I/RI+3-MA组大鼠精子质量下降,睾丸曲细精管排列松散,睾丸组织SOD活性、T-AOC降低(均P<0.05),MDA含量升高(P<0.05),Beclin1和Bcl2蛋白表达水平降低(均P<0.05),p62、Bax和cleaved caspase 3蛋白表达水平升高(均P<0.05),凋亡生殖细胞增多。结论激活自噬可改善I/RI大鼠精子质量和睾丸组织病理损伤,缓解氧化应激,抑制生殖细胞凋亡。 展开更多
关键词 睾丸扭转 缺血再灌注损伤 自噬 氧化性应激 生殖细胞 细胞凋亡
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Clinical outcomes in patients with stage non-seminomatous germ cell cancer 被引量:1
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作者 Zhao-Jie Lv Song Wu +6 位作者 Pei Dong Kai Yao Yin-Yin He Yao-Ting Gui Fang-Jian Zhou Zhuo-Wei Liu Zhi-Ming Cai 《Asian Journal of Andrology》 SCIE CAS CSCD 2013年第4期558-563,I0011,共7页
This study assesses the long-term outcomes in Han Chinese patients with clinical stage I non-seminomatous germ cell testicular cancer (CSI NSGCT) treated with surveillance, retroperitoneal lymph node dissection (RP... This study assesses the long-term outcomes in Han Chinese patients with clinical stage I non-seminomatous germ cell testicular cancer (CSI NSGCT) treated with surveillance, retroperitoneal lymph node dissection (RPLND) and adjuvant chemotherapy. We retrospectively evaluated 89 patients with a mean age of 26.5 years. After orchiectomy, 37 patients were treated with surveillance, 34 underwent RPLND and 18 were managed with chemotherapy. The overall survival rate, the recurrence-free survival rate and the risk factors were evaluated. The median follow-up length was 92 months (range: 6-149 months). Thirteen of the 89 patients (14.6%) had relapses, and one died by the evaluation date. The overall survival rate was 98.9%. The cumulative 4-year recurrence-free rates were 80.2%, 92.0% and 100% for the surveillance, RPLND and chemotherapy groups, respectively. The disease-free period tended to be briefer in patients with a history of cryptorchidism and those with stage Is. Therefore, surveillance, RPLND and adjuvant chemotherapy might be reliable strategies in compliant patients with CSI NSGCT. Surveillance should be recommended for patients with the lowest recurrence rate, especially those without lymphovascular invasion. This study might aid the establishment of a standard therapy for CSI NSGCT in China. 展开更多
关键词 CHEMOTHERAPY clinical stage I non-seminomatous germ cell testicular cancer (CSI NSGCT) OUTCOME retroperitoneallymph node dissection (RPLND) SURVEILLANCE treatment protocols
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Benign intratesticular schwannoma:a rare finding 被引量:2
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作者 Maria Chiara Sighinolfi Alessandro Mofferdin +6 位作者 Stefano S.De Stefani Antonio Celia Salvatore Micali Giovanni Saredi Giulio Rossi Riccardo Valli Giampaolo Bianchi 《Asian Journal of Andrology》 SCIE CAS CSCD 2006年第1期101-103,共3页
Schwannoma is a peripheral nerve tumour, occasionally located in the genitourinary tract. We described an extremely rare case of intratesticular neurinoma in a 79-year-old patient. (Asian JAndrol 2006 Jan; 8: 101-103)
关键词 SCHWANNOMA Schwann cells testicular neoplasm S 100 protein
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Testicular metastasis from gastric carcinoma:A case report 被引量:2
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作者 Bo Li Hui Cai +3 位作者 Zheng-Chun Kang Hao Wu Jian-Guo Hou Li-Ye Ma 《World Journal of Gastroenterology》 SCIE CAS 2015年第21期6764-6768,共5页
Gastric cancer(GC) is the most prevalent malignancy in the world,especially in China.GC has been postulated to spread via several different routes,including through hematogenous channels,lymphatic vessels,the seeding ... Gastric cancer(GC) is the most prevalent malignancy in the world,especially in China.GC has been postulated to spread via several different routes,including through hematogenous channels,lymphatic vessels,the seeding of peritoneal surfaces,direct extension through the gastric wall,and retrograde extension through the vas deferens or lymphatics.Testicular metastasis is rare.We show here a 53-year-old patient with GC who underwent a radical total gastrectomy approximately 22 mo ago after he presented with a sensation of heaviness and swelling of the right hemiscrotum.The diagnosis of metastatic adenocarcinoma was made after a rightside orchiectomy.We report the first case of testicular metastasis from gastric adenocarcinoma in China's Mainland and summarize the clinicopathologic features of the disease based on previously published papers. 展开更多
关键词 testicular cancer GASTRIC CARCINOMA ORCHIECTOMY GASTRECTOMY Signet ring cell CARCINOMA
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Primary Embryonal Lung Carcinoma and Testicular Seminoma in the Same Patient Ten-Years Later: Case-Report and Literature Review 被引量:2
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作者 Pasquale Rescigno Giuseppe Di Lorenzo +8 位作者 Lucia Raimondo Carmine D’Aniello Elide Matano Vincenzo Damiano Lucia Nappi Livio Puglia Antonella Petremolo Piera Federico Giovannella Palmieri 《Open Journal of Urology》 2012年第2期83-86,共4页
Primary germ cell tumors of lung are extremely rare. The prognosis is usually poor, with various symptoms seriously affecting quality of life. In this paper we describe the unique case of a patient affected by an embr... Primary germ cell tumors of lung are extremely rare. The prognosis is usually poor, with various symptoms seriously affecting quality of life. In this paper we describe the unique case of a patient affected by an embryonal carcinoma of lung and a testicular seminoma after ten years. We also report literature about pulmonary extragonadal germ cell tumors. 展开更多
关键词 EXTRAGONADAL GERM cell Tumors PRIMARY Pulmonary GERM cell Tumor EMBRYONAL Carcinoma testicular SEMINOMA
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Tracing of Sertoli-Cell-Only Syndrome and Other Histopathological Abnormalities in Iraqi Males with Primary Infertility of Azoospermia
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作者 Mohemid M. Al-Jebouri Salih A. Mdish 《Open Journal of Pathology》 2019年第1期10-17,共8页
Objective: This study aimed to investigate the histopathological examination of the testicular biopsies in infertile males with azoospermia. The patients were referred to the Urology Department in Salah Alden Hospital... Objective: This study aimed to investigate the histopathological examination of the testicular biopsies in infertile males with azoospermia. The patients were referred to the Urology Department in Salah Alden Hospital. Methods: The present study was carried out from May 2017 until June 2018 and the number of the patients group was 60. The patients aged between 20 to 50 years. 20 of them were selected and subjected to histopathological examinations by taking biopsies from their testes. Results: The sertoli-cell-only syndrome (SCOS) was the most common positive histopathological finding comprising 35% of the cases. This was followed by testicular atrophy with 30%, while maturation arrest was 20%. The percentage of hypospermatogenesis was 10% and normal spermatogenesis was 5%. Conclusion: Among the 20 specimens examined, the sertoli-cell-only syndrome (SCOS) was the most common positive histopathological finding. The semen analysis and testicular biopsy provide valuable information about the etiology and the fertility potential of an individual. 展开更多
关键词 IRAQI Male Infertility AZOOSPERMIA SERTOLI cells testicular Biopsy
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miRNA-138-5p靶向调控胱天蛋白酶3减缓吸烟所致睾丸支持细胞TM4细胞凋亡 被引量:1
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作者 徐华 买尔哈巴·阿不力孜 +1 位作者 赵婉竹 何丽娟 《中国生物化学与分子生物学报》 CAS CSCD 北大核心 2023年第2期285-294,共10页
近年来研究表明,长期大量吸烟可致睾丸出现不可逆性损伤进而出现精子发生受阻,凋亡信号通路在其中发挥着关键作用,其分子调控机制仍有待深入研究。本研究旨在探讨miRNA-138-5p在香烟烟雾所致小鼠睾丸支持细胞TM4细胞(正常小鼠睾丸Sertol... 近年来研究表明,长期大量吸烟可致睾丸出现不可逆性损伤进而出现精子发生受阻,凋亡信号通路在其中发挥着关键作用,其分子调控机制仍有待深入研究。本研究旨在探讨miRNA-138-5p在香烟烟雾所致小鼠睾丸支持细胞TM4细胞(正常小鼠睾丸Sertoli细胞)损伤中的靶向调控机制。MTT法、乳酸脱氢酶法和TUNEL法结果显示,CSE干预后的TM4细胞存活率显著降低(P<0.05),细胞毒性显著增加(P<0.05),细胞凋亡率显著增加(P<0.05);RT-PCR和Western印迹结果证明,10%CSE干预TM4细胞后,凋亡前体基因p53、促凋亡基因Bak和胱天蛋白酶3(caspase-3)的mRNA和蛋白质表达水平显著上调(P<0.05);在TM4细胞中转染miRNA-138-5p过表达质粒后同样进行CSE干预,结果显示,支持细胞存活率较转染前显著升高(P<0.05),凋亡阳性细胞数较转染前显著降低(P<0.05),凋亡前体p53基因、促凋亡基因Bak和Caspase-3的mRNA和蛋白质表达较转染前显著下调(P<0.05);沉默miRNA-138-5p后,Bak、胱天蛋白酶3的mRNA和蛋白质表达水平显著增加(P<0.05);在线数据库分析显示,miRNA-138-5p与胱天蛋白酶3具有较高的匹配预测值,双荧光素酶报告基因结果显示,Bak未结合至miRNA-138-5p,而胱天蛋白酶3可以靶向结合至miRNA-138-5p。以上结果提示,miRNA-138-5p可靶向调控胱天蛋白酶3,减缓吸烟所致睾丸支持细胞凋亡,具有支持细胞的保护作用。 展开更多
关键词 香烟烟雾暴露 TM4细胞(正常小鼠睾丸Sertoli细胞) miRNA-138-5p
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