Journal of Histochemistry & Cytochemistry最新文献_第2页

Expression of Glycoprotein 2 and Its Glycosylation in Human Cowper's Gland. 人类考伯氏腺中糖蛋白 2 的表达及其糖基化。

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2025-01-01 Epub Date: 2024-12-29 DOI: 10.1369/00221554241309413

Yusuke Fukiage, Shulin Low, Akifumi Muramoto, Yuzuru Ariga, Hitomi Hoshino, Tsutomu Nakada, Tomoya O Akama, Motohiro Kobayashi

{"title":"Expression of Glycoprotein 2 and Its Glycosylation in Human Cowper's Gland.","authors":"Yusuke Fukiage, Shulin Low, Akifumi Muramoto, Yuzuru Ariga, Hitomi Hoshino, Tsutomu Nakada, Tomoya O Akama, Motohiro Kobayashi","doi":"10.1369/00221554241309413","DOIUrl":"10.1369/00221554241309413","url":null,"abstract":"Glycoprotein 2 (GP2), initially identified as a primary membrane protein of zymogen granules in pancreatic acinar cells, is a marker of intestinal microfold cells (M cells) and involved in bacterial transcytosis in M cells. Recent studies have reported GP2 expression in the pancreas and intestine among various other organs. We aimed to elucidate the expression of GP2 and its glycosylation modifications in human Cowper's glands. We generated an anti-human GP2 monoclonal antibody suitable for formalin-fixed, paraffin-embedded tissue sections. This antibody, designated GP2-71, successfully stained both the plasma membrane and cytoplasm of normal pancreatic acinar cells. Subsequently, we performed GP2-71 immunostaining on normal human Cowper's gland tissues. Our findings revealed that the luminal cell membrane and contents of the Cowper's glands reacted strongly with GP2-71. Moreover, the regions stained with GP2-71 were partially immunostained with the anti-sialyl Lewis x (sLex) monoclonal antibody HECA-452. Furthermore, western blot analysis of protein A-purified GP2-immunoglobulin G fusion proteins demonstrated that GP2 was decorated with HECA-452-positive glycans. Collectively, these findings indicate that GP2 is expressed in human Cowper's glands and is potentially decorated with sLex-related glycans.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":"73 1-2","pages":"55-61"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11683828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vascular E-selectin Expression Recognized by the U12-12 Monoclonal Antibody as a Predictive Marker for Steroid Resistance in Immune Checkpoint Inhibitor-related Colitis. U12-12单克隆抗体识别的血管e -选择素表达作为免疫检查点抑制剂相关结肠炎类固醇耐药的预测标志物

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2025-01-01 Epub Date: 2025-02-24 DOI: 10.1369/00221554251320703

Koki Nakashima, Tadanobu Nagaya, Mai Iwaya, Katsushi Hiramatsu, Takeshi Uehara, Yasunari Nakamoto, Tamotsu Ishizuka, Motohiro Kobayashi

{"title":"Vascular E-selectin Expression Recognized by the U12-12 Monoclonal Antibody as a Predictive Marker for Steroid Resistance in Immune Checkpoint Inhibitor-related Colitis.","authors":"Koki Nakashima, Tadanobu Nagaya, Mai Iwaya, Katsushi Hiramatsu, Takeshi Uehara, Yasunari Nakamoto, Tamotsu Ishizuka, Motohiro Kobayashi","doi":"10.1369/00221554251320703","DOIUrl":"10.1369/00221554251320703","url":null,"abstract":"In immune checkpoint inhibitor (ICI)-related colitis, tumor necrosis factor (TNF)-α blockade is recommended if symptoms are not alleviated with corticosteroids. Although TNF has been shown to be associated with steroid resistance, the early prediction of steroid resistance is challenging in clinical practice. Therefore, in the present study, we evaluated the potential of vascular E-selectin expression, which is induced by TNF, to serve as a predictor of steroid resistance in ICI-related colitis. We performed immunohistochemical analysis of 29 cases of ICI-related colitis using the U12-12 monoclonal antibody, which specifically recognizes E-selectin, and examined the association between U12-12 staining and clinical features. The result showed that the proportion of steroid-resistant cases was significantly higher in the U12-12-positive group (8 of 9 cases; 88.9%) than in the U12-12-negative group (1 of 20 cases; 5.0%) (p<0.001). Furthermore, the proportion of steroid-resistant cases was 100% (6 of 6 cases) in patients with U12-12-positive and Common Terminology Criteria for Adverse Events (CTCAE) grade 3 or higher and 0% (0 of 12 cases) in patients with U12-12-negativity and CTCAE grade 1 or 2. Thus, evaluation of vascular E-selectin expression using the U12-12 monoclonal antibody is useful for predicting steroid resistance in ICI-related colitis.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"81-88"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11851588/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143483230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of an ALK-positive Non-Small-Cell Lung Cancer in Vitro Tumor 3D Culture Model for Therapeutic Screening. 用于治疗筛选的alk阳性非小细胞肺癌体外肿瘤3D培养模型的建立。

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2025-01-01 Epub Date: 2025-02-24 DOI: 10.1369/00221554251318435

Madeleine A Berry, Abigail R Bland, Gretel S Major, John C Ashton

{"title":"Development of an ALK-positive Non-Small-Cell Lung Cancer in Vitro Tumor 3D Culture Model for Therapeutic Screening.","authors":"Madeleine A Berry, Abigail R Bland, Gretel S Major, John C Ashton","doi":"10.1369/00221554251318435","DOIUrl":"10.1369/00221554251318435","url":null,"abstract":"Cancer cell monolayers are commonly used for preclinical drug screening. However, monolayers do not begin to mimic the complexity of the tumor microenvironment, including hypoxia and nutrient gradients within the tumor. To more accurately mimic solid tumors, we developed and drug-tested an anaplastic lymphoma kinase (ALK)-positive (H3122) non-small-cell lung cancer 3D (three-dimensional) culture model using light-activated gelatin methacryloyl hydrogels. We previously demonstrated that the combination of alectinib, an ALK inhibitor, and SHP099, an SHP2 inhibitor, had synergistic efficacy in ALK-positive cell monolayers. We aimed to test this drug combination in our novel ALK-positive 3D cancer model. We first validated the 3D cultures by comparing the distribution of terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)-positive cells in the 3D cultures with sections from time-matched mouse xenografts, finding a comparable percentage of TUNEL-positive cells in the 3D culture and xenograft inner cores at each time point. When we investigated the effect of the combination of alectinib and SHP099 in these novel 3D cultures, we found a comparable cellular response compared with our two-dimensional experiments especially with the drugs in combination. We suggest that 3D cultures be used as preclinical screening platforms to ensure that only the most efficacious drug candidates move on to in vivo testing.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"63-79"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11851580/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143483228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of the Pancreatic Islet Microvasculature in Health and Disease. 胰岛微血管在健康和疾病中的作用

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2024-11-01 Epub Date: 2024-11-27 DOI: 10.1369/00221554241299862

Alfred C Aplin, Yasaman Aghazadeh, Olivia G Mohn, Rebecca L Hull-Meichle

{"title":"Role of the Pancreatic Islet Microvasculature in Health and Disease.","authors":"Alfred C Aplin, Yasaman Aghazadeh, Olivia G Mohn, Rebecca L Hull-Meichle","doi":"10.1369/00221554241299862","DOIUrl":"10.1369/00221554241299862","url":null,"abstract":"The pancreatic islet vasculature comprises microvascular endothelial cells surrounded by mural cells (pericytes). Both cell types support the islet by providing (1) a conduit for delivery and exchange of nutrients and hormones; (2) paracrine signals and extracellular matrix (ECM) components that support islet development, architecture, and endocrine function; and (3) a barrier against inflammation and immune cell infiltration. In type 2 diabetes, the islet vasculature becomes inflamed, showing loss of endothelial cells, detachment, and/or trans-differentiation of pericytes, vessel dilation, and excessive ECM deposition. While most work to date has focused either on endothelial cells or pericytes in isolation, it is very likely that the interaction between these cell types and disruption of that interaction in diabetes are critically important. In fact, dissociation of pericytes from endothelial cells is an early, key feature of microvascular disease in multiple tissues/disease states. Moreover, in beta-cell replacement therapy, co-transplantation with microvessels versus endothelial cells alone is substantially more effective in improving survival and function of the transplanted cells. Ongoing studies, including characterization of islet vascular cell signatures, will aid in the identification of new therapeutic targets aimed at improving islet function and benefiting people living with all forms of diabetes.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"711-728"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11600425/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142729618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

George Gomori's Contributions to Diabetes Research and the Origins of the Journal of Histochemistry and Cytochemistry. 乔治-戈莫里对糖尿病研究的贡献以及《组织化学与细胞化学杂志》的起源。

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2024-11-01 Epub Date: 2024-11-18 DOI: 10.1369/00221554241300370

Denis G Baskin

引用次数: 0

High M2/M1 Macrophage Ratio Observed in Nasal Polyps Formed in Allergic Fungal Rhinosinusitis. 在过敏性真菌性鼻炎形成的鼻息肉中观察到高 M2/M1 巨噬细胞比率

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2024-11-01 Epub Date: 2024-10-10 DOI: 10.1369/00221554241286571

Eiichi Kato, Akifumi Muramoto, Natsumi Yonemoto, Yoshinori Matsuwaki, Masafumi Sakashita, Mana Fukushima, Shigeharu Fujieda, Motohiro Kobayashi

{"title":"High M2/M1 Macrophage Ratio Observed in Nasal Polyps Formed in Allergic Fungal Rhinosinusitis.","authors":"Eiichi Kato, Akifumi Muramoto, Natsumi Yonemoto, Yoshinori Matsuwaki, Masafumi Sakashita, Mana Fukushima, Shigeharu Fujieda, Motohiro Kobayashi","doi":"10.1369/00221554241286571","DOIUrl":"10.1369/00221554241286571","url":null,"abstract":"Allergic fungal rhinosinusitis (AFRS) shares similarities with eosinophilic chronic rhinosinusitis (ECRS), both characterized by intractable nasal polyps. The key distinction lies in the presence of fungal infection within the nasal cavity. While ECRS nasal polyps are known for significant infiltration of M2 macrophages and eosinophils, as well as an increase in high endothelial venule (HEV)-like vessels, these features are less commonly reported in AFRS. This study compared clinicopathological findings between AFRS (n=10), ECRS (n=12), and non-ECRS (n=10) patients' nasal polyps using immunohistochemical analysis for CD163 and CD68 to assess the M2/M1 macrophage ratio, and peripheral lymph node addressin (PNAd) and CD34 to evaluate the proportion of HEV-like vessels. AFRS showed a significantly higher number of CD163-positive M2 macrophages and an increased M2/M1 ratio compared with ECRS. However, the percentage of HEV-like vessels and the number of eosinophils infiltrating the nasal polyps were similar in both AFRS and ECRS. The observed increase in M2 macrophages in AFRS nasal polyps is presumed to be induced by fungal infection in the nasal cavity, in comparison with ECRS. These results highlight the distinctive immunological profiles of AFRS and ECRS, emphasizing the role of macrophage polarization in their pathogenesis.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"683-692"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11572950/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing Re-staining Techniques for the Restoration of Faded Hematoxylin and Eosin-stained Histopathology Slides: A Comparative Study. 优化修复褪色的苏木精和伊红染色组织病理切片的再染色技术：比较研究。

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2024-11-01 Epub Date: 2024-11-20 DOI: 10.1369/00221554241299861

Natcha Lorsuwannarat, Apisit Kaewsanit, Mongkon Charoenpitakchai, Chetana Ruangpratheep, Pasra Arnutti, Thirayost Nimmanon

{"title":"Optimizing Re-staining Techniques for the Restoration of Faded Hematoxylin and Eosin-stained Histopathology Slides: A Comparative Study.","authors":"Natcha Lorsuwannarat, Apisit Kaewsanit, Mongkon Charoenpitakchai, Chetana Ruangpratheep, Pasra Arnutti, Thirayost Nimmanon","doi":"10.1369/00221554241299861","DOIUrl":"10.1369/00221554241299861","url":null,"abstract":"Hematoxylin and eosin (H&E)-stained slides inevitably deteriorate over time, frequently becoming unreadable. Reutilizing these slides can reduce the need for additional serial sections, particularly when the target region is no longer available in the tissue block. This study aims to develop efficient protocols for recycling faded H&E-stained slides, providing benefits for future research on stored samples. Seventy-one faded slides, representing a variety of tissue types and pathologies, were randomly divided into two groups. Slides were de-stained and re-stained using the conventional procedure and a modified Tris and HCl procedure. Three observers independently assessed all slides based on predefined parameters. The stability of the re-stained slides was re-assessed in 6 months. The modified Tris and HCl method yielded significantly higher scores compared to the conventional method for crispness of staining, nuclear staining, cytoplasmic staining, and vibrancy of staining (p < 0.05), as well as greater durability, as evidenced by minimal score reduction 6 months after staining. Thus, incorporating a Tris and HCl step into the process effectively enhances and restores faded H&E slides, offering a valuable technique for revitalizing histology slides for future research and educational purposes.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"733-742"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11577553/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trefoil Factor Protein 3 (TFF3) as a Guardian of the Urinary Bladder Epithelium. 三叶草因子蛋白 3（TFF3）是膀胱上皮细胞的守护者。

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2024-11-01 Epub Date: 2024-11-23 DOI: 10.1369/00221554241299863

Andreja Erman, Urška Dragin Jerman, Dominika Peskar, Kate Šešelja, Iva Bazina, Mirela Baus Lončar

{"title":"Trefoil Factor Protein 3 (TFF3) as a Guardian of the Urinary Bladder Epithelium.","authors":"Andreja Erman, Urška Dragin Jerman, Dominika Peskar, Kate Šešelja, Iva Bazina, Mirela Baus Lončar","doi":"10.1369/00221554241299863","DOIUrl":"10.1369/00221554241299863","url":null,"abstract":"Trefoil factor family (TFF) peptides have been examined primarily in the gastrointestinal tract, where they play an important role in the epithelial regeneration. The therapeutic effects of TFFs, particularly the TFF3 protein, have been well studied in humans and in animal models of gastrointestinal injury, whereas little is known about their occurrence and function in the urinary bladder. In this study, we investigated the presence, location, and function of Tff3 in the urinary bladders of wild-type mice (Tff3WT) and compared them with Tff3 knockout mice (Tff3KO) using molecular and microscopic methods at the light and electron microscopic level. Our results show that Tff3 is expressed in the superficial cells of the urothelium, where it colocalizes with the uroplakin UP1b as one of the fundamental structural components of the apical plasma membrane, which is an important component of the blood-urine permeability barrier. Analysis of the urothelium with experimentally induced injury revealed that injury is more severe in Tff3KO mice and urothelial regeneration is attenuated compared with Tff3WT mice, suggesting that Tff3 plays a fine-tuned role in homeostasis and protection of the urothelium. This study provides the first data on the precise location and function of Tff3 in the bladder epithelium. (J Histochem Cytochem XX. XXX-XXX, XXXX).","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"693-709"},"PeriodicalIF":1.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11585002/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142695711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intestinal Tuft Cells Are Enriched With Protocadherins. 肠管细胞富含原黏附素

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2024-10-01 Epub Date: 2024-10-03 DOI: 10.1369/00221554241287267

Rachel Stubler, Sarah A Dooley, Rachel Edens, Maribeth R Nicholson, Amy C Engevik

{"title":"Intestinal Tuft Cells Are Enriched With Protocadherins.","authors":"Rachel Stubler, Sarah A Dooley, Rachel Edens, Maribeth R Nicholson, Amy C Engevik","doi":"10.1369/00221554241287267","DOIUrl":"10.1369/00221554241287267","url":null,"abstract":"Intestinal tuft cells are rare cells that regulate diverse functions. They harbor chemosensory receptors and signal to the mucosal immune system in response to external stimuli, though their full function and structure remain unclear. Named for their apical \"tuft\" of long actin-rich microvilli, tuft cells facilitate chemoreception and other physiological responses. In enterocytes, microvilli are stabilized by intermicrovillar adhesion complexes (IMACs) composed of several proteins, including cadherin-related family member-2 (CDHR2) and cadherin-related family member-5 (CDHR5), Myosin 7b, and Usher syndrome type 1 C (USH1C). We hypothesized that IMACs would be enriched in tuft cells to regulate microvillar organization. Immunostaining of murine intestinal tissue revealed that CDHR2 and CDHR5 colocalize with the tuft cell markers, DCLK1, phospho-EGFR, advillin, and cytokeratin 18. CDHR2 was dispersed throughout murine tuft cells, while CDHR5 was concentrated on the apical surface. USH1C and Myosin 7b were present in tuft cells, but at lower levels. Human single-cell RNA sequencing revealed robust CDHR2 and CDHR5 expression in tuft cells in the small intestine and colon. Immunostaining of human intestinal tissue confirmed CDHR2 and CDHR5 localization to the apical surface of tuft cells. Our findings demonstrate that protocadherins are key components of murine and human intestinal tuft cells.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"611-622"},"PeriodicalIF":1.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11471013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short-Term Treatment of Melatonin Improves the Expression of Cell Adhesion Molecules in the Testis of the Mouse Cryptorchidism Model. 褪黑素短期治疗可改善隐睾模型小鼠睾丸中细胞粘附分子的表达

IF 1.9 4区生物学

Journal of Histochemistry & Cytochemistry Pub Date : 2024-10-01 Epub Date: 2024-09-20 DOI: 10.1369/00221554241279505

Arunothai Wanta, Kazuhiro Noguchi, Taichi Sugawara, Kayoko Sonoda, Keerakarn Somsuan, Tomohiko Wakayama

{"title":"Short-Term Treatment of Melatonin Improves the Expression of Cell Adhesion Molecules in the Testis of the Mouse Cryptorchidism Model.","authors":"Arunothai Wanta, Kazuhiro Noguchi, Taichi Sugawara, Kayoko Sonoda, Keerakarn Somsuan, Tomohiko Wakayama","doi":"10.1369/00221554241279505","DOIUrl":"10.1369/00221554241279505","url":null,"abstract":"Melatonin plays a major role in regulating the sleep-wake cycle and enhancing testosterone production. We investigated the short-term effects of melatonin treatment for 14 consecutive days in the cryptorchidism model. We categorized experimental mice into Sham (S), Orchiopexy (O), Melatonin (Mel), and Orchiopexy + Melatonin (OMel) groups. Surgery involved inducing cryptorchidism in the left testis for seven days, followed by orchiopexy. The Mel group's testes did not descend, but they received melatonin injections after seven days of cryptorchidism. The OMel group underwent both orchiopexy and melatonin treatment. Both O and Mel groups exhibited decreased sperm and round-headed sperm in the epididymis. Significant increases were observed in the numbers of giant cells and negative Nectin-3 cells at p-value<0.05. The pattern of Cadm1 expression changed, and Nectin-2 and Nectin-3 co-expression was lacking in abnormal spermatids. Sertoli cell cytoplasm in both O and Mel groups exhibited autophagosomes and multivesicular bodies, which correlated with increased cyclooxygenase-2 expression. However, Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)-positive cell numbers increased significantly in all treatment groups compared to the S group. Our study found that the combination of orchiopexy and melatonin positively influenced the expression of cell adhesion molecules (Cadm1, Nectin-2, and Nectin-3) involved in spermatogenesis, while reducing giant cells, autophagosomes, and apoptosis.","PeriodicalId":16079,"journal":{"name":"Journal of Histochemistry & Cytochemistry","volume":" ","pages":"623-640"},"PeriodicalIF":1.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11483776/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0