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Lian Hu, Hong Zeng, Nenghui Liu
To investigate the expression of H19 long non-coding RNA (lncRNA) and zinc finger E-box-binding protein 1 (ZEB1) in the trophoblast of women with spontaneous abortion.
 Methods: A total of 20 women underwent miscarriage were enrolled as a miscarriage group, while 20 women underwent artificial abortion were enrolled as a control group. Reverse transcriptional fluorescence quantitative polymerase chain reaction (RT-qPCR) was used to detect the expression of H19 lncRNA and miR-200, and Western blot was used to detect the expression of ZEB1...
February 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
Ege Riza Karagur, Cennet Ozay, Ramazan Mammadov, Hakan Akca
Scientists are increasingly focusing attention on natural products of plant origin for use as agents in cancer protection and treatment. Cyclamen L. tuber extracts contain saponin glycosides that have been shown to have anti-cancer and other biological activities. The epithelial-to-mesenchymal transition (EMT) is thought to enhance malignant tumour progress. The transcriptional repressor zinc-finger E-box binding homeobox 1 (ZEB1) is an important inducer of EMT in different human tumours and has recently been shown to boost invasion by tumour cells...
March 19, 2018: Journal of Natural Medicines
Kousuke Sasaki, Tamotsu Sugai, Kazuyuki Ishida, Mitsumasa Osakabe, Hiroo Amano, Hiroaki Kimura, Minoru Sakuraba, Katsuhiko Kashiwa, Seiichiro Kobayashi
Activated cancer-associated fibroblasts (CAFs) and fibroblasts that have undergone the epithelial-mesenchymal transition (EMT) in cancer stroma contribute to tumor progression and metastasis. However, no reports have investigated the CAF phenotype and its clinicopathological relevance in cutaneous malignant tumors, including basal cell carcinoma (BCC), squamous cell carcinoma (SCC) and malignant melanoma (MM). Here, we investigated the CAF phenotype in cutaneous malignant tumors based on their histology and immunohistochemical expression of CAF-related markers, including adipocyte enhancer-binding protein 1 (AEBP1), podoplanin, platelet derived growth factor receptor α (PDGFRα), PDGFRβ, fibroblast activating protein (FAP), CD10, S100A4, α-smooth muscle actin (α-SMA), and EMT-related markers (Zeb1, Slug and Twist)...
March 16, 2018: Human Pathology
Baimou Li, Xiaopeng Mao, Hua Wang, Guanyu Su, Chengqiang Mo, Kaiyuan Cao, Shaopeng Qiu
The aim of the present study was to investigate the associations between vasculogenic mimicry (VM) and zinc finger E-box binding homeobox 1 (ZEB1) in bladder cancer. VM structure and ZEB1 expression were analyzed by cluster of differentiation 34/periodic acid Schiff (PAS) double staining and immunohistochemical staining in 135 specimens from patients with bladder cancer, and a further 12 specimens from normal bladder tissues. Three-dimensional (3-D) culture was used to detect VM formation in the bladder transitional cancer cell lines UM-UC-3 and J82, and the immortalized human bladder epithelium cell line SV-HUC-1 in vitro ...
April 2018: Oncology Letters
Marieke Hogervorst, Marion Rietveld, Frank de Gruijl, Abdoelwaheb El Ghalbzouri
BACKGROUND: Tumour stroma consists of a heterogeneous population of fibroblasts and related mesenchymal cells, collectively dubbed cancer-associated fibroblasts (CAFs). These CAFs are key players in cancer invasion of cutaneous squamous cell carcinoma (SCC). As we have shown earlier, papillary and reticular fibroblasts (Pfs and Rfs, respectively) have distinct effects on epidermal and dermal homeostasis, but their role in cancer invasion and epithelial-to-mesenchymal transition (EMT) remains to be determined...
March 19, 2018: British Journal of Cancer
Ewa Jankowska-Steifer, Justyna Niderla-Bielińska, Bogdan Ciszek, Marek Kujawa, Mateusz Bartkowiak, Aleksandra Flaht-Zabost, Daria Klosinska, Anna Ratajska
During embryonic development, hematopoietic cells are present in areas of blood-vessel differentiation. These hematopoietic cells emerge from a specific subpopulation of endothelial cells called the hemogenic endothelium. We have previously found that mouse proepicardium contained its own population of endothelial cells forming a network of vascular tubules. We hypothesize that this EC population contains cells of hematopoietic potential. Therefore, we investigated an in vitro hematopoietic potential of proepicardial cell populations...
March 16, 2018: Histochemistry and Cell Biology
Mengmeng Zhang, Fei Miao, Rong Huang, Wenjie Liu, Yuechao Zhao, Tao Jiao, Yalan Lu, Fan Wu, Xiaojuan Wang, Han Wang, Hong Zhao, Hongge Ju, Shiying Miao, Linfang Wang, Wei Song
In the publication of this article [1], there is an error in the Methods section at paragraph Cell culture and reagents and the Additional file2: Fig. S1 was erroneous linked.
March 16, 2018: Journal of Experimental & Clinical Cancer Research: CR
Antoine Abou Jaoude, Lise Badiqué, Mohamed Mlih, Sara Awan, Sunning Guo, Alexandre Lemle, Clauda Abboud, Sophie Foppolo, Lionel Host, Jérôme Terrand, Hélène Justiniano, Joachim Herz, Rachel L Matz, Philippe Boucher
ShcA is an adaptor protein that binds to the cytoplasmic tail of receptor tyrosine kinases and of the Low Density Lipoprotein-related receptor 1 (LRP1), a trans-membrane receptor that protects against atherosclerosis. Here, we examined the role of endothelial ShcA in atherosclerotic lesion formation. We found that atherosclerosis progression was markedly attenuated in mice deleted for ShcA in endothelial cells, that macrophage content was reduced at the sites of lesions, and that adhesion molecules such as the intercellular adhesion molecule-1 (ICAM-1) were severely reduced...
March 14, 2018: Scientific Reports
Tulika Mitra, Parash Prasad, Pritha Mukherjee, Susri Ray Chaudhuri, Urmi Chatterji, Sib S Roy
Ovarian cancer (OC) is the fourth most common gynecological malignancy due to its highly aggressive, recurrent, and drug-resistant nature. The last two features are rendered by the presence of cancer stem cells (CSCs). Factors like TGFβ1 and their downstream signaling pathways are upregulated in most cancers and are known to induce EMT and stemness, but the exact mechanisms underlying the process remain unelucidated. In our study, TGFβ1 induced enhanced stem-like properties like high expression of the pluripotent markers SOX2, OCT4a, and NANOG, along with CD44, and CD117 in the OC cells...
March 14, 2018: Journal of Cellular Biochemistry
Juliana Porretti, Guillermo N Dalton, Cintia Massillo, Georgina D Scalise, Paula L Farré, Randolph Elble, Esther N Gerez, Paula Accialini, Ana M Cabanillas, Kevin Gardner, Paola De Luca, Adriana De Siervi
Prostate cancer (PCa) is the most common cancer among men. Metabolic syndrome (MeS) is associated with increased PCa aggressiveness and recurrence. Previously, we proposed C-terminal binding protein 1 (CTBP1), a transcripcional co-repressor, as a molecular link between these two conditions. Notably, CTBP1 depletion decreased PCa growth in MeS mice. The aim of this study was to investigate the molecular mechanisms that explain the link between MeS and PCa mediated by CTBP1. We found that CTBP1 repressed Chloride Channel Accessory 2 (CLCA2) expression in prostate xenografts developed in MeS animals...
March 14, 2018: International Journal of Cancer. Journal International du Cancer
Cynthia C Jose, Lakshmanan Jagannathan, Vinay Singh Tanwar, Xiaoru Zhang, Chongzhi Zang, Suresh Cuddapah
Nickel (Ni) is an environmental and occupational carcinogen, and exposure to Ni is associated with lung and nasal cancers in humans. Furthermore, Ni exposure is implicated in several lung diseases including chronic inflammatory airway diseases, asthma and fibrosis. However, the mutagenic potential of Ni is low and does not correlate with its potent toxicity and carcinogenicity. Therefore, mechanisms underlying Ni exposure-associated diseases remain poorly understood. Since the health risks of environmental exposures often continue post exposure, understanding the exposure effects that persist after the termination of exposure could provide mechanistic insights into diseases...
March 12, 2018: Molecular Carcinogenesis
Min Zhou, Xinjian Liu, Zonghai Li, Qian Huang, Fang Li, Chuan-Yuan Li
Caspase-3 (CASP3) is a major mediator of apoptosis activated during cellular exposure to cytotoxic drugs, radiotherapy, or immunotherapy. It is often used as a marker for efficacy of cancer therapy. However, recent reports indicate that caspase-3 also has non-apoptotic roles such as promotion of tumor relapse and tumor angiogenesis. Therefore, the roles of caspase-3 in tumor progression remains to be defined clearly. In this study, we established caspase-3 knockout (KO) colon cancer cell lines by use of the CRISPR technology...
March 10, 2018: International Journal of Cancer. Journal International du Cancer
Longbo Zheng, Ming Xu, Junjie Xu, Ke Wu, Qian Fang, Yuelong Liang, Senjun Zhou, Dong Cen, Lin Ji, Weili Han, Xiujun Cai
Hepatocellular carcinoma (HCC) is one of the most common malignant cancers and currently the third leading cause of cancer-related deaths, worldwide. Epithelial-mesenchymal transition (EMT) plays a major role in HCC progression. In this study, we first found that the expression of E74-like ETS transcription factor 3 (ELF3), a member of the E-twenty-six family of transcription factors, was increased in HCC tissues, and that ELF3 overexpression was associated with poor prognoses for HCC patients. Gain-of-function and loss-of-function studies revealed that increased ELF3 expression promoted HCC cell proliferation, migration, and invasion, while these processes were inhibited when ELF3 was silenced...
March 9, 2018: Cell Death & Disease
Bo Xia, Lei Wang, Li Feng, Baofang Tian, Yuanjie Tan, Baoyin Du
Osteosarcoma is the most common primary malignant bone tumor in children and adolescents. This study aimed to explore the effects of long non-coding RNA CAT104 and microRNA-381 (miR-381) on osteosarcoma cell proliferation, migration, invasion and apoptosis, as well as the underlying potential mechanism. We found that CAT104 was highly expressed in osteosarcoma MG-63 and OS-732 cells. Knockdown of CAT104 significantly inhibited OS-732 cell proliferation, migration and invasion, but promoted cell apoptosis. CAT104 regulated the expression of miR-381 and miR-381 participated in the effects of CAT104 on OS-732 cells...
March 9, 2018: Oncology Research
Yu Okamoto, Naoko Nishimura, Kazunari Matsuda, Deshani C Ranawakage, Yusuke Kamachi, Hisato Kondoh, Masanori Uchikawa
To elucidate the transcriptional regulation that underlies specification of the otic placode, we investigated the Sox3 downstream enhancer Otic1 of the chicken, the activity of which is restricted to and distributed across the entire otic placode. The 181-bp Otic1 enhancer sequence was dissected into a 68-bp minimal activating sequence, which exhibited dimer enhancer activity in the otic placode and cephalic neural crest, and this was further reduced to a 25-bp Otic1 core sequence, which also showed octamer enhancer activity in the same regions...
March 8, 2018: Development, Growth & Differentiation
Hiroaki Miyazaki, Ryou-U Takahashi, Marta Prieto-Vila, Yumi Kawamura, Seiji Kondo, Tatsuo Shirota, Takahiro Ochiya
A number of studies report that epithelial to mesenchymal transition (EMT) supports the generation and maintenance of cancer stem cells (CSCs), which show tumor seeding ability and drug resistance; however, the molecular mechanisms underlying induction of EMT-associated tumor malignancy remain unclear. The present study reports that oral cancer cells switch from expressing the CD44 variant form (CD44v) to expressing the standard form (CD44s) during acquisition of cisplatin-resistance, which resulted in EMT induction...
February 9, 2018: Oncotarget
Weili Liang, Shasha Song, Yintao Xu, Huiying Li, Huantao Liu
Breast cancer is a common malignant tumor in women. It has been suggested that a type of microcirculation pattern that does not rely on host microvascular endothelial cells known as vasculogenic mimicry (VM) may contribute to the poor effect of anti‑angiogenesis treatment on some patients with breast cancer. However, the formation and regulatory mechanism of VM in breast cancer are unclear and still require further investigation. The present study examined whether decreasing the expression of zinc finger E‑box binding homeobox (ZEB1) using siRNA can inhibit the formation of VM in Triple Negative Breast Cancer (TNBC), and its specific function and molecular mechanism...
March 5, 2018: Molecular Medicine Reports
Wan-Cheng Xiong, Na Han, Nan Wu, Ke-Lei Zhao, Chen Han, Hui-Xin Wang, Guan-Fang Ping, Peng-Fei Zheng, Hailong Feng, Lei Qin, Peng He
Long noncoding RNAs (lncRNAs) are dysregulated in many diseases. MicroRNA-101 (miR-101) functions as a tumor suppressor by directly targeting ZEB1 in various cancers. However, the potential mechanism of lncRNA ZEB1-AS1 and miR-101/ZEB1 axis in CRC remains unknown. In this study, we further investigated the potential interplay between miR-101/ZEB1 axis and lncRNA ZEB1-AS1 in colorectal cancer (CRC). Results showed that ZEB1-AS1 was upregulated in CRC tissues and cells. MiR-101 was downregulated in CRC tissues and negatively correlated with ZEB1-AS1 and ZEB1 expression levels in CRC...
2018: American Journal of Translational Research
Yue Yu, Wei Luo, Zheng-Jun Yang, Jiang-Rui Chi, Yun-Rui Li, Yu Ding, Jie Ge, Xin Wang, Xu-Chen Cao
BACKGROUND: Breast cancer is the most common cancer among women worldwide and metastasis is the leading cause of death among patients with breast cancer. The transforming growth factor-β (TGF-β) pathway plays critical roles during breast cancer epithelial-mesenchymal transition (EMT) and metastasis. SMAD2, a positive regulator of TGF-β signaling, promotes breast cancer metastasis through induction of EMT. METHODS: The expression of miR-190 and SMAD2 in breast cancer tissues, adjacent normal breast tissues and cell lines were determined by RT-qPCR...
March 6, 2018: Molecular Cancer
Ritu Mishra, Houda Benlhabib, Wei Guo, Connie B Lerma Cervantes, Carole R Mendelson
The major surfactant protein, SP-A (product of SFTPA gene), serves as a marker of type II pneumocyte differentiation and surfactant synthesis. SFTPA expression in cultured human fetal lung (HFL) epithelial cells is upregulated by hormones that increase cAMP and activate TTF-1/NKX2.1 and NF-κB. To further define mechanisms for type II cell differentiation and induction of SP-A, we investigated roles of miRNAs. Using microarray to identify differentially expressed miRNAs in HFL epithelial cells during type II cell differentiation in culture, we observed that members of the miR-199a/-214 cluster were significantly downregulated during differentiation...
March 5, 2018: Molecular and Cellular Biology
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