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Articles 1 - 4 of 4
Full-Text Articles in Cell and Developmental Biology
Pleckstrin Homology (Ph) Domain Leucine-Rich Repeat Protein Phosphatase Controls Cell Polarity By Negatively Regulating The Activity Of Atypical Protein Kinase C, Xiaopeng Xiong, Xin Li, Yang-An Wen, Tianyan Gao
Pleckstrin Homology (Ph) Domain Leucine-Rich Repeat Protein Phosphatase Controls Cell Polarity By Negatively Regulating The Activity Of Atypical Protein Kinase C, Xiaopeng Xiong, Xin Li, Yang-An Wen, Tianyan Gao
Markey Cancer Center Faculty Publications
The proper establishment of epithelial polarity allows cells to sense and respond to signals that arise from the microenvironment in a spatiotemporally controlled manner. Atypical PKCs (aPKCs) are implicated as key regulators of epithelial polarity. However, the molecular mechanism underlying the negative regulation of aPKCs remains largely unknown. In this study, we demonstrated that PH domain leucine-rich repeat protein phosphatase (PHLPP), a novel family of Ser/Thr protein phosphatases, plays an important role in regulating epithelial polarity by controlling the phosphorylation of both aPKC isoforms. Altered expression of PHLPP1 or PHLPP2 disrupted polarization of Caco2 cells grown in 3D cell cultures …
Klf4 Deletion Alters Gastric Cell Lineage And Induces Muc2 Expression, Tianxin Yu, Xi Chen, T. Lin, J. Liu, M. Li, W. Zhang, X. Xu, W. Zhao, M. Liu, Dana L. Napier, Chi Wang, B. Mark Evers, Chunming Liu
Klf4 Deletion Alters Gastric Cell Lineage And Induces Muc2 Expression, Tianxin Yu, Xi Chen, T. Lin, J. Liu, M. Li, W. Zhang, X. Xu, W. Zhao, M. Liu, Dana L. Napier, Chi Wang, B. Mark Evers, Chunming Liu
Markey Cancer Center Faculty Publications
Gastric cancer is one of the most common types of cancer in the world, particularly in underdeveloped countries. The mechanism of gastric cancer is less understood compared with other types of gastrointestinal (GI) cancers. Krüppel-like factor 4 (KLF4) is a zinc-finger transcription factor and is a potential tumor suppressor in GI cancers. In this study, we have generated two mouse models, Rosa-Cre;Klf4fl/fl and Lgr5-Cre;Klf4fl/fl. KLF4 was deleted by Rosa-Cre in the gastric epithelia cells or by Lgr5-Cre in the antral stem cells in the adult mice. KLF4 deletion resulted in increased proliferating cells and decreased pit mucous …
S100a4 Drives Non-Small Cell Lung Cancer Invasion, Associates With Poor Prognosis, And Is Effectively Targeted By The Fda-Approved Anti-Helminthic Agent Niclosamide, Rachel L. Stewart, Brittany L. Carpenter, Dava S. West, Teresa Knifley, Lili Liu, Chi Wang, Heidi L. Weiss, Tamas S. Gal, Eric B. Durbin, Susanne M. Arnold, Kathleen L. O'Connor, Min Chen
S100a4 Drives Non-Small Cell Lung Cancer Invasion, Associates With Poor Prognosis, And Is Effectively Targeted By The Fda-Approved Anti-Helminthic Agent Niclosamide, Rachel L. Stewart, Brittany L. Carpenter, Dava S. West, Teresa Knifley, Lili Liu, Chi Wang, Heidi L. Weiss, Tamas S. Gal, Eric B. Durbin, Susanne M. Arnold, Kathleen L. O'Connor, Min Chen
Markey Cancer Center Faculty Publications
S100A4 (metastasin-1), a metastasis-associated protein and marker of the epithelial to mesenchymal transition, contributes to several hallmarks of cancer and has been implicated in the progression of several types of cancer. However, the impacts of S100A4 signaling in lung cancer progression and its potential use as a target for therapy in lung cancer have not been properly explored. Using established lung cancer cell lines, we demonstrate that S100A4 knockdown reduces cell proliferation, invasion and three-dimensional invasive growth, while overexpression of S100A4 increases invasive potential. In patient-derived tissues, S100A4 is preferentially elevated in lung adenocarcinoma. This elevation is associated with lymphovascular …
Autocrine Epiregulin Activates Egfr Pathway For Lung Metastasis Via Emt In Salivary Adenoid Cystic Carcinoma, Shuli Liu, Dongxia Ye, Dongliang Xu, Yueling Liao, Ling Zhang, Liu Liu, Wenwen Yu, Yanan Wang, Yue He, Jingzhou Hu, Wenzheng Guo, Tong Wang, Beibei Sun, Hongyong Song, Huijing Yin, Jingyi Liu, Yadi Wu, Hanguang Zhu, Binhua P. Zhou, Jiong Deng, Zhiyuan Zhang
Autocrine Epiregulin Activates Egfr Pathway For Lung Metastasis Via Emt In Salivary Adenoid Cystic Carcinoma, Shuli Liu, Dongxia Ye, Dongliang Xu, Yueling Liao, Ling Zhang, Liu Liu, Wenwen Yu, Yanan Wang, Yue He, Jingzhou Hu, Wenzheng Guo, Tong Wang, Beibei Sun, Hongyong Song, Huijing Yin, Jingyi Liu, Yadi Wu, Hanguang Zhu, Binhua P. Zhou, Jiong Deng, Zhiyuan Zhang
Markey Cancer Center Faculty Publications
Salivary adenoid cystic carcinoma (SACC) is characterized by invasive local growth and a high incidence of lung metastasis. Patients with lung metastasis have a poor prognosis. Treatment of metastatic SACC has been unsuccessful, largely due to a lack of specific targets for the metastatic cells. In this study, we showed that epidermal growth factor receptors (EGFR) were constitutively activated in metastatic lung subtypes of SACC cells, and that this activation was induced by autocrine expression of epiregulin (EREG), a ligand of EGFR. Autocrine EREG expression was increased in metastatic SACC-LM cells compared to that in non-metastatic parental SACC cells. Importantly, …