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cancer stem cell hoxa5

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https://www.readbyqxmd.com/read/27418136/plasticity-of-lung-cancer-stem-like-cells-is-regulated-by-the-transcription-factor-hoxa5-that-is-induced-by-oxidative-stress
#1
Hiroshi Saijo, Yoshihiko Hirohashi, Toshihiko Torigoe, Ryota Horibe, Akari Takaya, Aiko Murai, Terufumi Kubo, Toshimitsu Kajiwara, Tsutomu Tanaka, Yosuke Shionoya, Eri Yamamoto, Reo Maruyama, Munehide Nakatsugawa, Takayuki Kanaseki, Tomohide Tsukahara, Yasuaki Tamura, Yasushi Sasaki, Takashi Tokino, Hiromu Suzuki, Toru Kondo, Hiroki Takahashi, Noriyuki Sato
Cancer stem-like cells (CSCs)/cancer-initiating cells (CICs) are reasonable targets for cancer therapy. However, recent studies have revealed that some non-CSCs/CICs have plastic ability and can dedifferentiate into CSCs/CICs. Therefore, an understanding of the molecular mechanisms that control the plasticity is essential to achieve CSC/CIC-targeting therapy. In this study, we analyzed the plasticity of lung cancer cells and found that lung non-CSCs/CICs can dedifferentiate into CSCs/CICs in accordance with the expression of stem cell transcription factor SOX2...
July 13, 2016: Oncotarget
https://www.readbyqxmd.com/read/27157614/hoxa5-determines-cell-fate-transition-and-impedes-tumor-initiation-and-progression-in-breast-cancer-through-regulation-of-e-cadherin-and-cd24
#2
W W Teo, V F Merino, S Cho, P Korangath, X Liang, R-C Wu, N M Neumann, A J Ewald, S Sukumar
Loss of HOXA5 expression occurs frequently in breast cancer and correlates with higher pathological grade and poorer disease outcome. However, how HOX proteins drive differentiation in mammalian cells is poorly understood. In this paper, we investigated cellular and molecular consequences of loss of HOXA5 in breast cancer, and the role played by retinoic acid in HOXA5 function. Analysis of global gene expression data from HOXA5-depleted MCF10A breast epithelial cells, followed by validation, pointed to a role for HOXA5 in maintaining several molecular traits typical of the epithelial lineage such as cell-cell adhesion, tight junctions and markers of differentiation...
October 20, 2016: Oncogene
https://www.readbyqxmd.com/read/26678341/hoxa5-counteracts-stem-cell-traits-by-inhibiting-wnt-signaling-in-colorectal-cancer
#3
Paloma Ordóñez-Morán, Caroline Dafflon, Masamichi Imajo, Eisuke Nishida, Joerg Huelsken
Hierarchical organization of tissues relies on stem cells, which either self-renew or produce committed progenitors predestined for lineage differentiation. Here we identify HOXA5 as an important repressor of intestinal stem cell fate in vivo and identify a reciprocal feedback between HOXA5 and Wnt signaling. HOXA5 is suppressed by the Wnt pathway to maintain stemness and becomes active only outside the intestinal crypt where it inhibits Wnt signaling to enforce differentiation. In colon cancer, HOXA5 is downregulated, and its re-expression induces loss of the cancer stem cell phenotype, preventing tumor progression and metastasis...
December 14, 2015: Cancer Cell
https://www.readbyqxmd.com/read/26678334/stemming-colorectal-cancer-growth-and-metastasis-hoxa5-forces-cancer-stem-cells-to-differentiate
#4
COMMENT
Si Hui Tan, Nick Barker
Wnt signaling drives colorectal cancer stem cells, but effective therapeutics targeting these cells and their signaling pathways are lacking. In this issue of Cancer Cell, Ordóñez-Morán and colleagues describe a promising therapeutic intervention for colorectal cancers that selectively induces cancer stem cell differentiation through HOXA5 expression and Wnt signaling inhibition.
December 14, 2015: Cancer Cell
https://www.readbyqxmd.com/read/23943797/epithelial-mesenchymal-transition-and-tumor-suppression-are-controlled-by-a-reciprocal-feedback-loop-between-zeb1-and-grainyhead-like-2
#5
Benjamin Cieply, Joshua Farris, James Denvir, Heide L Ford, Steven M Frisch
Epithelial-mesenchymal transition (EMT) in carcinoma cells enhances malignant progression by promoting invasion and survival. EMT is induced by microenvironmental factors, including TGF-β and Wnt agonists, and by the E-box-binding transcription factors Twist, Snail, and ZEB. Grainyhead-like-2 (GRHL2), a member of the mammalian Grainyhead family of wound-healing regulatory transcription factors, suppresses EMT and restores sensitivity to anoikis by repressing ZEB1 expression and inhibiting TGF-β signaling...
October 15, 2013: Cancer Research
https://www.readbyqxmd.com/read/23864708/multifunctional-roles-of-urokinase-plasminogen-activator-upa-in-cancer-stemness-and-chemoresistance-of-pancreatic-cancer
#6
Swapna Asuthkar, Victoria Stepanova, Tatiana Lebedeva, Aixuan L Holterman, Norman Estes, Douglas B Cines, Jasti S Rao, Christopher S Gondi
Pancreatic ductal adenocarcinoma (PDAC) is almost always lethal. One of the underlying reasons for this lethality is believed to be the presence of cancer stem cells (CSC), which impart chemoresistance and promote recurrence, but the mechanisms responsible are unclear. Recently the poor prognosis of PDAC has been correlated with increased expression of urokinase plasminogen activator (uPA). In the present study we examine the role of uPA in the generation of PDAC CSC. We observe a subset of cells identifiable as a side population (SP) when sorted by flow cytometry of MIA PaCa-2 and PANC-1 pancreatic cancer cells that possess the properties of CSC...
September 2013: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/19424076/a-tumorigenic-homeobox-hox-gene-expressing-human-gastric-cell-line-derived-from-putative-gastric-stem-cell
#7
Yuan-Chieh Yang, Sheng-Wen Wang, I-Chen Wu, Chia-Cheng Chang, Yeou-Lih Huang, Oscar K Lee, Jan-Gowth Chang, Angela Chen, Fu-Chen Kuo, Wen-Ming Wang, Deng-Chyang Wu
GOAL: Study the mechanism of gastric tumor development. BACKGROUND: We have generated and characterized a novel human gastric cell line, KMU-CS12 (CS12), from an immortal cell line, KMU-CSN (CSN; formerly named as GI2CS) which was derived from putative human gastric stem cell/progenitor cell clone, KMU-GI2. STUDY: The characterization of the CS12 cell line includes gene expression by immunocytochemical staining, cell proliferation and differentiation potential, cyotogenetic analysis by Giemsa banding and spectral karyotype analysis (SKY), and tumorigenicity in immune-deficient congenic inbred, nude mice (BALB/cAnN-Foxn1nu/CrlNarl)...
September 2009: European Journal of Gastroenterology & Hepatology
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