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Journal of Molecular Histology

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https://www.readbyqxmd.com/read/30238337/time-course-of-differentiation-of-different-cell-types-in-3d-reconstructed-eccrine-sweat-glands
#1
Mingjun Zhang, Haihong Li, Sitian Xie, Liyun Chen
Epidermal basal cells invaginate into the dermis to form sweat ducts, which then grow downwards further to form secretory coils during the ontogenesis of eccrine sweat glands, but the time course of differentiation of different cell types in 3D-reconstructed eccrine sweat glands remain unclear. In this study, secretory cell-specific marker K7, clear secretory cell-specific marker CA II, dark secretory cell-specific marker GCDFP-15, myoepithelial cell-specific marker α-SMA, inner duct cell-specific marker S100P and outer duct cell-specific marker S100A2 were detected by immunofluorescence staining...
September 20, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30225683/chrysin-attenuates-interstitial-fibrosis-and-improves-cardiac-function-in-a-rat-model-of-acute-myocardial-infarction
#2
Mei Yang, Jun Xiong, Qiang Zou, Dan-Dan Wang, Cong-Xin Huang
Interstitial fibrosis after acute myocardial infarction (MI) leads to cardiac structural remodeling and dysfunction. The peroxisome proliferator-activated receptor-gamma (PPAR-γ) agonist chrysin has been shown to protect injured myocardium through suppression of oxidative stress and inflammation. This study was designed to investigate the effect and mechanism of chrysin on myocardial fibrosis. A rat MI model was created by ligating the left coronary artery. The rats with MI were treated with chrysin (40 mg/kg/day) or 0...
September 17, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30143909/assessment-of-the-cellular-localisation-of-the-annexin-a2-s100a10-complex-in-human-placenta
#3
Seham A Abd El-Aleem, Lodewijk V Dekker
The AnxA2/S100A10 complex has been implicated in various placental functions but although the localisation of these proteins individually has been studied, there is no information about the localisation of their complex in situ at the cellular level. Using the proximity ligation technique, we have investigated the in situ localisation of AnxA2/S100A10 complex in the placenta and have compared this with the location patterns of the individual proteins. High levels of expression of AnxA2/S100A10 complexes were observed in the amniotic membrane and in blood vessel endothelial cells...
August 24, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30143908/microglia-polarization-by-methylprednizolone-acetate-accelerates-cuprizone-induced-demyelination
#4
Golaleh Noorzehi, Parichehr Pasbakhsh, Maryam Borhani-Haghighi, Iraj Ragerdi Kashani, Soheila Madadi, Fatemeh Tahmasebi, Saied Nekoonam, Maryam Azizi
Glucocorticoids (GC) are known as inflammatory drugs, which are used in neuroinflammatory diseases. Unlike the classic picture, recent studies have revealed that some GC drugs exacerbate inflammatory responses in their acute and prolonged administration. Multiple sclerosis (MS) is a demyelinating inflammatory disorder, in which reactive M1 microglia phenotype play a central role. Since methylprednisolone (MP), as a synthetic GC, are commonly used by MS patients, in this study, we evaluated the effect of long-term administration of MP on microglia polarization in cuprizone (CPZ)-induced MS model...
August 24, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30128637/further-studies-about-coactosin-like-protein-1-affecting-the-migration-of-mouse-neocortical-neurons
#5
Mengmeng Liu, Guohong Li, Mengli Wang, Xinran Cheng, Yinxue Huang, Mingrui Xu, Kaikai Li, Jiong Chen, Xiaoyan Zhu, Shanting Zhao
During the development of mammalian cortex, late neurons generated by neuronal progenitors bypass earlier-born neurons and migrate to reach upper layers of cortical plate in an inner-to-outer fashion. Filamentous-actin (F-actin) can regulate neuronal migration, whereas Coactosin-like protein 1 (Cotl1) modulates F-actin. Lys 75 and Arg 73 of Cotl1 play an important role in binding F-actin; when they are mutated to Glu, Cotl1 cannot bind F-actin, called as a non-actin-binding mutant (ABM). The Lys 131 site of Cotl1, the 5-Lipoxygenase (5LO) binding site, is spatially close to Lys 75, leading to impact the binding of Cotl1 to F-actin...
August 20, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30120609/nlrp1-promotes-tgf-%C3%AE-1-induced-myofibroblast-differentiation-in-neonatal-rat-cardiac-fibroblasts
#6
Jing Zong, Hao Zhang, Fang-Fang Li, Kai Liang, Jia-Li Liu, Lu-Hong Xu, Wen-Hao Qian
Nuclear localization leucine-rich-repeat protein 1 (NLRP1) is a member of Nod-like receptors (NLRs) family. Recent studies have reported that NLRP1 is involved in various diseases, especially in cardiovascular diseases. However, the effect of NLRP1 on cardiac fibrosis remains unclear. In this study, NLRP1 overexpression and NLRP1 silencing constructs were transfected into neonatal rat cardiac fibroblasts induced by TGF-β1 for 48 h to investigate the effect of NLRP1 in cardiac fibrosis and its molecular mechanisms...
August 18, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30099666/expression-of-bmp2-4-7-during-the-odontogenesis-of-deciduous-molars-in-miniature-pig-embryos
#7
Zhenhua Gao, Lingxiao Wang, Fu Wang, Chunmei Zhang, Jinsong Wang, Junqi He, Songlin Wang
Bone morphogenetic proteins (BMPs) play important roles in tooth development. However, their expression has not been studied in miniature pigs, which have many anatomical similarities in oral and maxillofacial region compared to human. This study investigated BMP2/4/7 expression patterns during deciduous molar development in miniature pigs on embryonic days (E) 40, 50, and 60. The mandibles were fixed, decalcified, and embedded before sectioning. H&E staining, immunohistochemistry, in situ hybridization using specific radionuclide-labeled cRNA probes, and real-time PCR were used to detect the BMP expression patterns during morphogenesis of the third deciduous molar...
August 11, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30066216/constitutive-activation-of-%C3%AE-catenin-in-ameloblasts-leads-to-incisor-enamel-hypomineralization
#8
Linlin Fan, Shijian Deng, Xin Sui, Mengmeng Liu, Shuhua Cheng, Yunfei Wang, Yuguang Gao, Chun-Hung Chu, Qi Zhang
Enamel is the hardest tissue with the highest degree of mineralization protecting the dental pulp from injury in vertebrates. The ameloblasts differentiated from ectoderm-derived epithelial cells are a single cell layer and are important for the enamel formation and mineralization. Wnt/β-catenin signaling has been proven to exert an important role in the mineralization of bone, dentin and cementum. Little was known about the regulatory mechanism of Wnt/β-catenin signaling pathway in ameloblasts during amelogenesis, especially in the mineralization of enamel...
July 31, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30046941/cysteine-cathepsins-b-x-and-k-expression-in-peri-arteriolar-glioblastoma-stem-cell-niches
#9
Barbara Breznik, Clara Limbaeck Stokin, Janko Kos, Mohammed Khurshed, Vashendriya V V Hira, Roman Bošnjak, Tamara T Lah, Cornelis J F Van Noorden
Glioblastoma (GBM) is the most lethal brain tumor also due to malignant and therapy-resistant GBM stem cells (GSCs) that are localized in protecting hypoxic GSC niches. Some members of the cysteine cathepsin family of proteases have been found to be upregulated in GBM. Cathepsin K gene expression is highly elevated in GBM tissue versus normal brain and it has been suggested to regulate GSC migration out of the niches. Here, we investigated the cellular distribution of cathepsins B, X and K in GBM tissue and whether these cathepsins are co-localized in GSC niches...
July 25, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/30014245/methylation-of-cdkn1c-may-involve-in-the-regulation-of-tooth-development-through-cell-cycle-inhibition
#10
Qiulan Li, Yue Guo, Mianfeng Yao, Jun Li, Yingyi Chen, Qiong Liu, Yun Chen, Yuanyuan Zeng, Bin Ji, Yunzhi Feng
Cdkn1c, a member of the Cip/Kip cyclin-dependent kinase inhibitor family, is critically involved in regulating cell cycle and cellular differentiation during development in mammals. However, the functional role of Cdkn1c and the underlying mechanisms by which Cdkn1c affects odontogenesis remain largely unknown. In our study, we found that Cdkn1c expression dynamically changes from embryonic day 11.5 (E11.5) to postnatal day 3 (P3), and exhibits tissue-specific expression profiles. Evaluation of CDKN1C protein by immunohistochemistry and western blot, revealed that CDKN1C protein expression peaks at P3 and then is reduced at P5 and P7...
July 16, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29992488/ahr-activation-protects-intestinal-epithelial-barrier-function-through-regulation-of-par-6
#11
Kun Yu, Yuanhang Ma, Zhicao Zhang, Xin Fan, Teming Li, Liangzi Li, Weidong Xiao, Yujiao Cai, Lihua Sun, Pengyuan Xu, Min Yu, Hua Yang
The Par complex (Par-6/Par-3/aPKC) plays a key role in the maintenance of the intestinal barrier function through the regulation of epithelial junction formation. The aryl hydrocarbon receptor (AhR) has been shown to be an important regulator for intestinal homeostasis. In this study, we investigated the role of the AhR activation on the regulation of Par complex. AhR activation by 6-formylindolo (3,2-b) carbazole (FICZ) represses the abnormal expression of the Par complex in a mouse model of dextran sulphate sodium (DSS)-induced colitis...
July 10, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29951922/mir-146b-protect-against-sepsis-induced-mice-myocardial-injury-through-inhibition-of-notch1
#12
Xinhua Wang, Yuan Yu
Myocardial dysfunction is a major cause of death in sepsis. MicroRNA-146b (miR-146b) has been reported to be related to myocardial disease. However, the role of miR-146b in sepsis as well as myocardial injury is still unclear. Septic cardiac dysfunction in mice was induced by cecal ligation and puncture (CLP) and miR-146b was found increased significantly in the myocardium tissue of CLP mice. It was found that up-regulation of miR-146b by agomiR injection suppressed expression of IL-1β in mice as well as myocardium apoptosis in CLP mice...
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29946750/correction-to-brdu-edu-dual-labeling-to-determine-the-cell-cycle-dynamics-of-defined-cellular-subpopulations
#13
Lachlan Harris, Oressia Zalucki, Michael Piper
In the original publication of the article, two errors were made in describing the equations for Tc .
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29846865/cgrp-gene-modified-rbmscs-show-better-osteogenic-differentiation-capacity-in-vitro
#14
Xijiao Yu, Shuang Liu, Hui Chen, Xinyu Zhao, Xue Chen, Yi Du, Shu Li
Calcitonin gene-related peptide (CGRP) is a marked and important neuropeptide expressed in nerve fibers during bone repair. This study investigated the role of CGRP overexpression on osteogenic differentiation of rat bone mesenchymal stem cells (rBMSCs). rBMSCs were infected with viral stocks of pLenO-DCE-CGRP (CGRP group) or pLenO-DCE (Vector group), while normal rBMSCs were used as a control. Transfection efficiency of rBMSCs was analyzed by flow cytometry. Cell proliferation was examined using a Cell Counting Kit-8 and flow cytometry...
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29846864/over-expression-of-iqgap1-indicates-poor-prognosis-in-head-and-neck-squamous-cell-carcinoma
#15
Cong-Cong Wu, Hao Li, Yao Xiao, Lei-Lei Yang, Lei Chen, Wei-Wei Deng, Lei Wu, Wen-Feng Zhang, Zhi-Jun Sun
IQ-domain GTPase-activating protein 1 (IQGAP1) is associated with the development and progression of many human cancers. We aimed to investigate the expression and clinicopathological significances of IQGAP1 in head and neck squamous cell carcinoma (HNSCC). In this study, immunohistochemical staining of IQGAP1, co-inhibitory immune checkpoint molecules and macrophage markers were performed in human HNSCC samples to analyze the expression and correlation with clinicopathological characteristics. Immunoreactivity of IQGAP1 was also detected in immunocompetent mouse HNSCC tissue...
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29785488/mir-155-inhibits-the-formation-of-hypertrophic-scar-fibroblasts-by-targeting-hif-1%C3%AE-via-pi3k-akt-pathway
#16
Xue Wu, Jun Li, Xuekang Yang, Xiaozhi Bai, Jihong Shi, Jianxin Gao, Yan Li, Shichao Han, Yijie Zhang, Fu Han, Yang Liu, Xiaoqiang Li, Kejia Wang, Julei Zhang, Zheng Wang, Ke Tao, Dahai Hu
Hypertrophic scar (HS) is a serious skin fibrotic disease characterized by the excessive proliferation of fibroblasts and often considered as a kind of benign skin tumor. microRNA-155 (miR-155) is usually served as a promising marker in antitumor therapy. In view of the similarities of hypertrophic scar and tumor, it is predicted that miR-155 may be a novel therapeutic target in clinical trials. Here we found the expression levels of miR-155 was gradually down regulated and HIF-1α was upregulated in HS tissue and HS derived fibroblasts (HFs)...
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29774455/semaphorin-3a-promotes-osteogenic-differentiation-of-bmsc-from-type-2-diabetes-mellitus-rats
#17
Qiao Qiao, Xiaoru Xu, Yingliang Song, Shuang Song, Wenzhong Zhu, Fenglan Li
Bone regeneration is impaired in patients with type 2 diabetes mellitus (T2DM), which leads to non-healing after bone loss. The decreased osteogenic capacity of bone mesenchymal stem cells (BMSCs) might be a main reason. Sema3A, as a powerful protein promoting osteocyte differentiation, shows potential for bone regeneration treatment. BMSCs may be a therapeutic solution. In this study, we divided BMSCs from T2DM rats (BMSCs-D) and normal rats (BMSCs-N), identified their ability to differentiate into different cell types...
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29728894/gamma-enolase-predicts-lung-damage-in-severe-acute-pancreatitis-induced-acute-lung-injury
#18
Lawrence Owusu, Caiming Xu, Hailong Chen, Geliang Liu, Guixin Zhang, Jinwen Zhang, Zhankai Tang, Zhongwei Sun, Xin Yi
Severe acute pancreatitis (SAP) associated acute lung injury (ALI) accounts for about 70% mortality of SAP patients. However, there are no precise biomarkers for the disease currently. Herein, we evaluated the potential of gamma-enolase (ENO2), against its universal isoform alpha-enolase (ENO1), as a marker of SAP-ALI in a rat model. Firstly, 16 male Sprague-Dawley rats were randomly divided into two groups, Sham (n = 8) and SAP-ALI (n = 8), for pancreatitis induction. Ultra-structure examination by electron microscopy and HE staining were used for lung injury assessment...
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29675567/human-urine-derived-stem-cells-play-a-novel-role-in-the-treatment-of-stz-induced-diabetic-mice
#19
Tianxue Zhao, Deng Luo, Yun Sun, Xin Niu, Yang Wang, Chen Wang, Weiping Jia
Human urine-derived stem cells (hUSCs) are a potential stem cell source for cell therapy. However, the effect of hUSCs on glucose metabolism regulation in type 1 diabetes was not clear. Therefore, the aim of the study was to evaluate whether hUSCs have protective effect on streptozotocin (STZ)-induced diabetes. hUSCs were extracted and cultivated with a special culture medium. Flow cytometry analysis was applied to detect cell surface markers. BALB/c male nude mice were either injected with high-dose STZ (HD-STZ) or multiple low-dose STZ (MLD-STZ)...
August 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29667149/three-dimensional-reconstructed-eccrine-sweat-glands-with-vascularization-and-cholinergic-and-adrenergic-innervation
#20
Mingjun Zhang, Haihong Li, Liyun Chen, Shuhua Fang, Sitian Xie, Changmin Lin
Functional integrity of the regenerated tissues requires not only structural integrity but also vascularization and innervation. We previously demonstrated that the three-dimensional (3D) reconstructed eccrine sweat glands had similar structures as those of the native ones did, but whether the 3D reconstructed glands possessing vascularization and innervation was still unknown. In the study, Matrigel-embedded eccrine sweat gland cells were implanted under the inguinal skin. Ten weeks post-implantation, the vascularization, and innervation in the 10-week reconstructed eccrine sweat glands and native human eccrine sweat glands were detected by immunofluorescence staining...
August 2018: Journal of Molecular Histology
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