{"title":"Loss of miR-424 and miR-503 promotes decidualization of human endometrial stromal cells by increasing SCARA5 expression.","authors":"Tetsu Yamaguchi, Masashi Takamura, Hideno Tochigi, Yumi Mizuno, Yosuke Mizuno, Tomomi Sato, Shunsuke Tamaru, Kazuya Kusama, Kazuhiro Tamura, Yoshimasa Kamei, Takeshi Kajihara","doi":"10.1007/s00795-025-00431-5","DOIUrl":"https://doi.org/10.1007/s00795-025-00431-5","url":null,"abstract":"<p><p>This study aims to investigate the function of miR-424 and miR-503, identified as putative regulatory miRNAs of FOXO1, a key factor for decidualization. The expression of both miR-424 and miR-503 in human endometrial stromal cells (HESCs) were measured before and after decidualization. Then, HESCs were transfected with both miR-424 and miR-503 before decidualization. Quantitative reverse transcription PCR, actin staining analysis, migration assay, fluorescence immunostaining, and luciferase assay were performed. MiR-424 and miR-503 expression was decreased after decidualization. Overexpression of both miR-424 and miR-503 inhibited major decidual maker genes, including FOXO1, PRL, IGFBP1, WNT4, and SCARA5, and altered F-actin's subcellular distribution from the periphery to all over the cytoplasm, concomitantly increasing cell mobility. Moreover, immunohistochemical analysis revealed overexpression of both miRNAs resulted in FOXO1 protein accumulation in the cytoplasm. Knocking down FOXO1 decreased SCARA5 expression, revealing SCARA5 is a downstream target of FOXO1. In addition, a luciferase reporter assay confirmed that the 3'-untranslated region of FOXO1 mRNA is targeted by miR-424. These results suggest that both miRNAs may play an important role in endometrial decidualization by regulating transcriptional activity of FOXO1, which alters decidualization-related gene expression such as SCARA5.Abstract: Journal standard instruction requires an unstructured abstract; hence structured abstract changed to unstructured.Thank you for the correction. I approve this change.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Large number of CD68<sup>+</sup>/CD163<sup>+</sup> Hofbauer cells and characteristic vascular structural alterations in the placental villi of cases with placenta accreta spectrum.","authors":"Hazuki Kashiwagi, Kengo Shigehara, Terufumi Kubo, Yoshihiko Hirohashi, Tasuku Mariya, Kazuhiko Matsuo, Tomoyuki Minowa, Shin-Ichi Ishioka, Kenji Murata, Takayuki Kanaseki, Tomohide Tsukahara, Tadashi Hasegawa, Tsuyoshi Saito, Toshihiko Torigoe","doi":"10.1007/s00795-025-00432-4","DOIUrl":"https://doi.org/10.1007/s00795-025-00432-4","url":null,"abstract":"<p><p>Placenta accreta spectrum (PAS) is a serious disease leading to complications and maternal death. The objective of the study was to characterize the placental villi and blood vessels of PAS villi histopathologically. We investigated 10 cases of PAS (five cases of placenta increta, two cases of placenta accreta, and three cases of placenta percreta) histologically. Immunohistochemical staining using anti-CD68 or anti-CD163 antibodies was performed to detect and count Hofbauer cells. Immunohistochemical staining with an anti-CD34 antibody was used to detect vascular endothelial cells, and the number and area of vessels were analyzed. The numbers of CD68-positive or CD163-positive Hofbauer cells were larger in PAS cases compared with control cases. The vascular area in villi was smaller in PAS cases compared with control cases. The number of blood vessels in villi was slightly higher in PAS cases than in control cases. The numbers of Hofbauer cells and vessels in villi were larger in PAS cases compared with control cases, whereas the area of vessels in villi was smaller in PAS cases compared with control cases. Although their biological meaning is elusive, these findings provide novel insights into the pathogenesis of PAS, particularly regarding the role of Hofbauer cells in immune-suppressive role and angiogenesis and the alterations in vascular structure and hemodynamics in the chorionic villi.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143625313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A type of pancreatic cancer cells form cell clusters from a solitary condition in a primary ciliogenesis-dependent manner.","authors":"Kenji Shirakawa, Ryota Nakazato, Tetsuhiro Hara, Kenichiro Uemura, Faryal Ijaz, Shinya Takahashi, Koji Ikegami","doi":"10.1007/s00795-025-00428-0","DOIUrl":"https://doi.org/10.1007/s00795-025-00428-0","url":null,"abstract":"<p><p>Primary cilia are hair-like projections that protrude on most of mammalian cells and mediate reception of extracellular signals. Numerous studies have demonstrated that a variety of cancer cells including pancreatic ductal adenocarcinoma (PDAC) fail to form primary cilia. The loss of primary cilia is thought to cause carcinogenesis and progressive cell proliferation. However, the relationship of the primary cilia loss with carcinogenesis and/or cancer malignancy remains arguable. We herein examined whether ciliogenesis was increased in a model of more progressive PDAC and investigated effects of ciliogenesis on growth of PDAC using a pancreatic cancer cell line, PANC-1. The majority of PANC-1 cells in a cell cluster grown from a solitary cell possessed primary cilia. The rate of ciliogenesis was higher in cells grown from low density than in cells grown from high density. Almost all clones passing limiting dilution culture had abilities to grow primary cilia. Compared to the parental PANC-1 cells, clones that proliferated from a solitary cell showed increase in the ciliogenesis rate. Blocking ciliogenesis suppressed cell cluster formation. Our results suggest that pancreatic cancer cells that are more resistant to a solitary condition have abilities of ciliogenesis and form tumor-like cell clusters in a primary cilia-dependent manner.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143605468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Novel orthotopic patient-derived xenograft model using human pancreatic cancer tissue fragments to recapitulate distant metastasis and cancer-related hypercoagulability.","authors":"Takuma Miura, Arisa Watanabe, Mutsumi Miyake, Sayaka Suga, Makoto Miyoshi, Kumiko Miyashita, Shohei Komatsu, Noriyuki Nishimura, Kazuya Shimizu, Yuichi Hori","doi":"10.1007/s00795-025-00425-3","DOIUrl":"https://doi.org/10.1007/s00795-025-00425-3","url":null,"abstract":"<p><p>Pancreatic cancer is a malignant tumor that metastasizes to distant organs, such as the liver and lungs from an early stage. Few animal models can reproduce early metastasis. In addition, no model has been reported that reproduces cancer-related hypercoagulability, which is characteristic of pancreatic ductal adenocarcinoma and other adenocarcinomas. We hypothesized that the reason why the commonly used orthotopic cell xenograft model cannot reproduce the disease is inadequate construction of the cancer microenvironment. We developed an orthotopic tissue fragment xenograft model in which tumor tissue was transplanted into the pancreas of mice while preserving the microenvironment. Briefly, we injected single cancer cells subcutaneously to form a tumor, which was then cut with a scalpel into tumor fragments. A fragment was then sutured and fixed to the surface of the pancreatic tail. In this study, we evaluated the superiority of this model over a conventional orthotopic cell xenograft model. As a result, the novel orthotopic tissue xenograft model reproduced early distant metastasis to the liver and lung, nerve invasion, and cancer-related hypercoagulability of human pancreatic cancer, and showed greater similarity to clinical cases than the control orthotopic cell xenograft model.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143597272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Three-dimensional visualization of calcification during scale regeneration in goldfish.","authors":"Hisayuki Funahashi, Yusuke Maruyama, Nobuo Suzuki, Takashi Takaki, Kazuho Honda, Atsuhiko Hattori","doi":"10.1007/s00795-025-00427-1","DOIUrl":"https://doi.org/10.1007/s00795-025-00427-1","url":null,"abstract":"<p><p>We used scanning electron microscopy to visualize the regeneration of goldfish scales on day 3 in vivo. Several vesicle-like structures of 100-700 nm diameter flowed onto the fibrous sheets in groups of spindle-shaped bodies arranged in the same direction. Transmission electron microscopy revealed that these structures were encircled by the lipid bilayer membrane. In addition, some had a small mass of high electron density. Scanning electron microscopic observations of specimens treated with bleach revealed particles of almost the same size as the observed electron-dense mass scattered between fibers, with a thickness of approximately 50 nm on day 3 of scale regeneration. The diameter of these particles increased by 5 times on day 14, sticking closely to the fibers. Furthermore, elemental analysis using electron probe microscopy showed that the particles were composed of calcium and phosphorous. These results confirmed that the spindle-shaped bodies and vesicle-like structures were osteoblasts and matrix vesicles, respectively.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mixed hepatocellular carcinoma and high-grade neuroendocrine neoplasm with ambiguous histopathological features: a case report.","authors":"Kentaro Tsuji, Makoto Abe, Saho Wakamatsu, Sayuri Hoshi, Nobuo Hoshi, Chisato Takagi, Noriyoshi Fukushima, Kaoru Hirabayashi","doi":"10.1007/s00795-024-00396-x","DOIUrl":"10.1007/s00795-024-00396-x","url":null,"abstract":"<p><p>Well-differentiated neuroendocrine tumor (NET) and poorly differentiated neuroendocrine carcinoma (NEC) are distinct entities with different biological behavior. However, difficult cases showing equivocal morphology have been reported in some organs. Herein, we report a case of primary hepatic neuroendocrine neoplasm (NEN) with ambiguous histopathological features admixed with conventional hepatocellular carcinoma (HCC). A 70-year-old man with untreated chronic hepatitis B underwent left medial sectionectomy because of two incidental liver masses. On pathological examination, one of the resected tumors had intermingling NEN and HCC components. The NEN component consisted of relatively uniform tumor cells proliferating in trabecular, cord-like, or solid patterns with peripheral nuclear palisading. The tumor cells were immunopositive for synaptophysin, chromogranin A, cluster of differentiation 56 (CD56), and focally hepatocyte paraffin 1. p53 showed wild-type expression. The Ki-67 labeling index was 27% at the hot spot. Eleven months after the surgery, he died of a cerebral hemorrhage without evidence of recurrent liver cancer. The intermediate degree of differentiation and the modest proliferative activity can challenge the distinction between NEC and NET G3. While the coexisting HCC indicates NEC rather than NET in a pathogenetic viewpoint, such ambiguous tumor may not be as aggressive as typical NECs.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":"62-68"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142036288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solimar Ribeiro Carlete Filho, Luana Amorim Morais da Silva, Caio Rodrigues Maia, Paulo Roberto de Andrade Santos, Pollianna Muniz Alves, Pedro Paulo de Andrade Santos
{"title":"Oral pemphigus vulgaris diagnostic characteristics and treatment: a systematic review.","authors":"Solimar Ribeiro Carlete Filho, Luana Amorim Morais da Silva, Caio Rodrigues Maia, Paulo Roberto de Andrade Santos, Pollianna Muniz Alves, Pedro Paulo de Andrade Santos","doi":"10.1007/s00795-024-00414-y","DOIUrl":"10.1007/s00795-024-00414-y","url":null,"abstract":"<p><p>Pemphigus vulgaris (PV) is a rare, potentially fatal, immune-mediated chronic disease characterized by the presence of bullous intraepithelial lesions on mucous membranes and skin. This study aimed to perform a systematic literature review covering PV clinical and histopathological aspects and treatment. The literature searches were carried out in the Pubmed, Periódicos Capes, Scopus, Science Direct, Web of Science and Scielo databases. Articles in English or Spanish published from 2000 to 2022 comprising case reports, case series and literature reviews with case report were included. After the analyses, 21 articles were selected. PV generally presents in the third to sixth decades of life and exhibits no gender predilection. The disease manifests itself clinically through irregular and painful blisters that rupture, resulting in erosion and ulceration areas. Histopathologically, the presence of an intraepithelial cleft located above the basal layer and acantholysis are observed. Standard treatment encompasses systemic and topical corticosteroids, with prednisolone being widely employed. Management consists of a remission induction phase and a maintenance phase. An early and accurate diagnosis is paramount to quickly initiate treatment, resulting in more favorable prognoses, as the choice of treatment and responses depend on the severity of the disease. Registered at the International Prospective Register of Systematic Reviews (PROSPERO): Number CRD42024497313.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":"1-22"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142829248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Liu, XuanPeng Li, HaiWen Xu, Ke Sun, Hui Jun Gong, Cheng Luo
{"title":"Spinal cord stimulation induces Neurotrophin-3 to improve diabetic foot disease.","authors":"Yi Liu, XuanPeng Li, HaiWen Xu, Ke Sun, Hui Jun Gong, Cheng Luo","doi":"10.1007/s00795-024-00410-2","DOIUrl":"10.1007/s00795-024-00410-2","url":null,"abstract":"<p><p>Low-extremity ischemic disease is a common complication in diabetic patients, leading to reduced quality of life and potential amputation. This study investigated the therapeutic effect of spinal cord stimulation (SCS) on patients with diabetic foot disease and a rat model of diabetic foot injury. SCS was applied to patients with diabetic foot disease, with clinical assessments performed before and after therapy. Blood levels of NGF, BDNF, and NT-3 were determined by ELISA. A rat model of diabetic foot injury was established to validate NT-3's role in SCS therapy. SCS therapy improved the condition of patients with diabetic ischemic foot disease and promoted wound healing in the rat model. NT-3 levels significantly increased after SCS therapy in both patients and rats. Recombinant NT-3 administration improved wound healing and re-vascularization in the rat model, while NT-3 neutralization abrogated SCS's therapeutic effect. SCS improves the condition of patients with diabetic ischemic foot disease by inducing NT-3 production. Both SCS and NT-3 supplementation show therapeutic potential for ameliorating diabetic foot disease.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":"43-52"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11829938/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142644472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Morphological aberration of corneal nerves in hyposecretory dry eye guinea pigs.","authors":"Takeshi Kiyoi, Qiang He, Li Liu, Shijie Zheng, Hitomi Nakazawa, Junsuke Uwada, Takayoshi Masuoka","doi":"10.1007/s00795-024-00407-x","DOIUrl":"10.1007/s00795-024-00407-x","url":null,"abstract":"<p><p>Dry eye, a common ocular surface disease associated with tear film instability and corneal impairment, is frequently accompanied by ocular discomfort and pain. Recent research has shown that corneal nerve dysfunction may play a role in certain pathologies of dry eye; however, the details remain unclear. To clarify the aberration in corneal nerves underlying sensory abnormalities, in addition to corneal impairment in dry eye, we examined the morphological alterations of nerve fibers in the corneas excised from guinea pigs with dry eye, where the lacrimal glands were surgically excised. Guinea pigs with dry eye exhibited reduced tear volume, increased spontaneous blink frequency, and corneal epithelial damage. Simultaneously, the subbasal nerve plexus in the cornea visualized using an anti-tubulin βIII antibody partially outgrew and became convoluted. The morphology of peptidergic nerves containing calcitonin gene-related peptide, which may function as a polymodal nociceptor, was also altered. These results indicate that guinea pigs with excised lacrimal glands can serve as useful tools for investigating the neuronal mechanisms underlying corneal pathology in dry eyes. Additionally, chronic tear deficiency may considerably alter nerve structure, including peptidergic nerves in the cornea, accompanied by epithelial damage and increased blink frequency.</p>","PeriodicalId":18338,"journal":{"name":"Medical Molecular Morphology","volume":" ","pages":"34-42"},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142623548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}