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p53 family member

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https://www.readbyqxmd.com/read/28218651/proteome-characteristics-of-non-alcoholic-steatohepatitis-liver-tissue-and-associated-hepatocellular-carcinomas
#1
Anna Kakehashi, Vasily E Stefanov, Naomi Ishii, Takahiro Okuno, Hideki Fujii, Kazuaki Kawai, Norifumi Kawada, Hideki Wanibuchi
To uncover mechanisms of nonalcoholic steatohepatitis (NASH) associated hepatocarcinogenesis, we compared the proteomes of human NASH-associated liver biopsies, resected hepatocellular carcinomas (HCCs) and HCCs of HCV⁺ patients with normal liver tissue of patients with gastrointestinal tumor metastasis, in formalin-fixed paraffin-embedded samples obtained after surgery in our hospital during the period from 2006 to 2011. In addition, proteome analysis of liver tumors in male STAM NASH-model mice was performed...
February 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28212736/tap73-upregulates-il-1%C3%AE-in-cancer-cells-potential-biomarker-in-lung-and-breast-cancer
#2
Polina Vikhreva, Varvara Petrova, Tarik Gokbulut, Ilias Pestlikis, Mara Mancini, Nicola Di Daniele, Richard A Knight, Gerry Melino, Ivano Amelio
p73 is a transcription factor belonging to the p53 tumour suppressor family. p73(-/-) mice exhibit a range of phenotypes including neurological, reproductive and inflammatory defects. Although the role of p73 in the control of genomic stability explains part of these phenotypes, a clear mechanism of how p73 participates in the inflammatory response is still elusive. Interleukin-1β (IL-1β) has a crucial role in mediating the inflammatory response. Because of its high potency to induce inflammation, the activation and secretion of IL-1β is tightly regulated by large protein complexes, named inflammasomes...
January 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28212728/metabolic-pathways-regulated-by-p63
#3
REVIEW
Eleonora Candi, Artem Smirnov, Emanuele Panatta, Anna Maria Lena, Flavia Novelli, Mara Mancini, Giuditta Viticchiè, Maria Cristina Piro, Nicola Di Daniele, Margherita Annicchiarico-Petruzzelli, Gerry Melino
The transcription factor p63 belongs to the p53-family and is a master regulator of proliferative potential, lineage specification, and differentiation in epithelia during development and tissue homeostasis. In cancer, p63 contribution is isoform-specific, with both oncogenic and tumour suppressive roles attributed, for ΔNp63 and TAp63, respectively. Recently, p53 and TAp73, in line with other tumour suppressor genes, have emerged as important regulators of energy metabolism and metabolic reprogramming in cancer...
January 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28211873/the-p53-family-members-have-distinct-roles-during-mammalian-embryonic-development
#4
Jeanine L Van Nostrand, Margot E Bowen, Hannes Vogel, Maria Barna, Laura D Attardi
The p53 tumor suppressor is a member of a multi-protein family, including the p63 and p73 transcription factors. These proteins can bind to the same consensus sites in DNA and activate the same target genes, suggesting that there could be functional redundancy between them. Indeed, double mutant mice heterozygous for any two family member-encoding genes display enhanced cancer phenotypes relative to single heterozygous mutants. However, whether the family members play redundant roles during embryonic development has remained largely unexplored...
February 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28193839/metformin-promotes-amp-activated-protein-kinase-independent-suppression-of-%C3%AE-np63%C3%AE-and-inhibits-cancer-cell-viability
#5
Yong Yi, Deshi Chen, Juan Ao, Shengnan Sun, Min Wu, Xiaorong Li, Johann Bergholz, Yujun Zhang, Zhi-Xiong Xiao
The blood-glucose modifier metformin is used to treat type II diabetes and has also been shown to possess anti-cancer activities. Recent studies indicate that glucose deprivation can greatly enhance metformin-mediated inhibition of cell viability, but the molecular mechanism involved in this inhibition is unclear. In this study, we report that under glucose deprivation metformin inhibited expression of ΔNp63α, a p53 family member involved in cell adhesion pathways, resulting in disruption of cell-matrix adhesion and in subsequent apoptosis in human squamous carcinoma cells...
February 13, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28178647/enhancement-of-trail-induced-apoptosis-by-5-fluorouracil-requires-activating-bax-and-p53-pathways-in-trail-resistant-lung-cancers
#6
Uddin Md Nazim, Rasheduzzaman Md, You-Jin Lee, Dai-Wu Seol, Sang-Youel Park
Lung cancer, especially lung adenocarcinoma, is one of the main causes of death worldwide. Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a primary anticancer agent and a member of the tumor necrosis factor family that selectively induces apoptosis in various tumor cells, but not in normal cells. Combination chemotherapy can be used for treating specific cancer types even at progressive stages. In the present study, we observed that 5-fluorouracil, which exerts anticancer effects by inhibiting tumor cell proliferation, enhanced TRAIL-induced apoptosis of TRAIL-resistant human adenocarcinoma A549 cells...
February 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28165047/relevance-of-mortalin-to-cancer-cell-stemness-and-cancer-therapy
#7
Chae-Ok Yun, Priyanshu Bhargava, Youjin Na, Jung-Sun Lee, Jihoon Ryu, Sunil C Kaul, Renu Wadhwa
Mortalin/mtHsp70 is a member of Hsp70 family of proteins. Enriched in a large variety of cancers, it has been shown to contribute to the process of carcinogenesis by multiple ways including inactivation of tumor suppressor p53 protein, deregulation of apoptosis and activation of EMT signaling. In this study, we report that upregulation of mortalin contributes to cancer cell stemness. Several cancer cell stemness markers, such as ABCG2, OCT-4, CD133, ALDH1, CD9, MRP1 and connexin were upregulated in mortalin-overexpressing cells that showed higher ability to form spheroids...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28119237/betulinic-acid-promotes-trail-function-on-liver-cancer-progression-inhibition-through-p53-caspase-3-signaling-activation
#8
Ying Xu, Jing Li, Qian-Jun Li, Yan-Ling Feng, Feng Pan
Betulinic acid (BA), isolated from the tree bark, is a pentacyclic triterpenoid, showing inhibitory role in cancer cells. However, the effects of BA treatment on liver cancer have little to be known. Thus, the study is conducted to explore the in vitro and in vivo role of BA in liver cancer. And the interactions between BA and tumor necrosis factor-related apoptosis-inducing ligand of APO2, also known as TRAIL, were investigated in liver cancer cells. A synergistic effect of BA and APO2 combination on apoptosis induction in liver cancer cells was observed...
January 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28115244/identification-expression-pattern-and-functional-characterization-of-as-kip2-in-diapause-embryo-restarting-process-of-artemia-sinica
#9
Mengchen Zhang, Feng Yao, Tong Qin, Lin Hou, Xiangyang Zou
Proper control of the cellular processes requires a variety of regulatory proteins that are involved in the cell cycle, proliferation and apoptosis. Cyclin-dependent kinase inhibitor (CKI) negatively regulates transcription and arrests the cell cycle in G1 phase. KIP2 is a member of CKI family, which could inhibit proliferation by tight-binding with several cyclin-CDK complexes. During the embryonic development of the brine shrimp, Artemia sinica, KIP2 plays a key role in the cell cycle regulation, but the specific mechanisms remain unknown...
January 20, 2017: Gene
https://www.readbyqxmd.com/read/28114432/tfdp3-regulates-epithelial-mesenchymal-transition-in-breast-cancer
#10
Kailin Yin, Yanchen Liu, Ming Chu, Yuedan Wang
Breast cancer remains a lethal disease to women due to lymph node metastasis, the tumor microenvironment, secondary resistance and other unknown factors. Several important transcription factors involved in this disease, such as PTEN, p53 and beta-catenin, have been identified and researched in-depth as candidates for targeted therapy in breast cancer. TFDP3 is a new, promising candidate for transcriptional regulation in breast cancer, although it was first identified in hepatocellular carcinoma. Here, we demonstrate that TFDP3 is expressed in a variety of malignancies, normal testis tissue and breast cancer cell lines and thus provide evidence that TFDP3 is a cancer-testis antigen...
2017: PloS One
https://www.readbyqxmd.com/read/28108301/pfkfb3-a-direct-target-of-p63-is-required-for-proliferation-and-inhibits-differentiation-in-epidermal-keratinocytes
#11
Robert B Hamanaka, Gökhan M Mutlu
p63 is a transcription factor essential for epidermal development and homeostasis. p63 is a member of the p53 family of transcription factors, which are increasingly understood to be regulators of cellular metabolism. How p63 regulates metabolism in epidermal keratinocytes is incompletely understood, and it is unknown whether glycolytic regulation is essential to maintain the balance between proliferation and differentiation within the epidermis. We found that p63 promotes glycolytic metabolism in epidermal keratinocytes...
January 17, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28099441/puma-and-nf-kb-are-cell-signaling-predictors-of-reovirus-oncolysis-of-breast-cancer
#12
Chandini Thirukkumaran, Zhong-Qiao Shi, Ponnampalam Thirukkumaran, Joanne Luider, Karen Kopciuk, Jason Spurrell, Kate Elzinga, Don Morris
BACKGROUND AND PURPOSE: Reovirus is a ubiquitous RNA virus that exploits aberrant signaling pathways for its replication. The oncolytic potential of reovirus against numerous cancers under pre-clinical/clinical conditions has been documented by us and others. Despite its proven clinical activity, the underlying mechanisms of reovirus oncolysis is still not well elucidated. If reovirus therapy is to be optimized for cancer, including breast cancer patients, it is imperative to understand the mechanisms of reovirus oncolysis, especially in treatment of resistant tumour...
2017: PloS One
https://www.readbyqxmd.com/read/28096293/the-role-of-mdm2-and-mdm4-in-breast-cancer-development-and-prevention
#13
REVIEW
Sue Haupt, Reshma Vijayakumaran, Jeffreena Panimaya, Andrew Burgess, Elgene Lim, Ygal Haupt
The major cause of death from breast cancer is not the primary tumour, but relapsing, drug-resistant, metastatic disease. Identifying factors that contribute to aggressive cancer offers important leads for therapy. Inherent defense against carcinogens depends on the individual molecular make-up of each person. Important molecular determinants of these responses are under the control of the mouse double minute (MDM) family: comprised of the proteins MDM2 and MDM4. In normal, healthy adult cells, the MDM family functions to critically regulate measured, cellular responses to stress and subsequent recovery...
January 17, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/28079889/deletion-of-the-bh3-only-protein-noxa-alters-electrographic-seizures-but-does-not-protect-against-hippocampal-damage-after-status-epilepticus-in-mice
#14
Naoki Ichikawa, Mariana Alves, Shona Pfeiffer, Elena Langa, Yasmina E Hernández-Santana, Hidenori Suzuki, Jochen Hm Prehn, Tobias Engel, David C Henshall
Several members of the Bcl-2 gene family are dysregulated in human temporal lobe epilepsy and animal studies show that genetic deletion of some of these proteins influence electrographic seizure responses to chemoconvulsants and associated brain damage. The BH3-only proteins form a subgroup comprising direct activators of Bax-Bak that are potently proapoptotic and a number of weaker proapoptotic BH3-only proteins that act as sensitizers by neutralization of antiapoptotic Bcl-2 family members. Noxa was originally characterized as a weaker proapoptotic, 'sensitizer' BH3-only protein, although recent evidence suggests it too may be potently proapoptotic...
January 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28078840/mast-cell-and-cancer-with-special-emphasis-on-il-37-an-anti-inflammatory-and-inhibitor-of-innate-immunity-new-frontiers
#15
F Carinci, G Lessiani, E Spinas, S K Kritas, G Ronconi, Al Caraffa, P Conti
Mast cells (MCs) are mediators of allergy and inflammation and participate in the growth of cancer cells. MCs can promote both neoangiogenesis and tumor growth. They increase in the stroma of certain tumors where they can be recruited by tumor-derived chemoattractants, such as monocyte chemotactic protein-1 (MCP-1), RANTES and stem cell factor (SCF) to selectively secrete inflammatory molecules including chemical mediators and cytokines (TNF, IL-6 and IL-1). However, MC differentiation pathways and heterogeneity in cancer are still poorly understood...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28058630/il-33-acts-as-a-foe-to-mia-paca-2-pancreatic-cancer
#16
Yujiang Fang, Lei Zhao, Huaping Xiao, Kathryn M Cook, Qian Bai, Elizabeth J Herrick, Xuhui Chen, Chenglu Qin, Ziwen Zhu, Mark R Wakefield, Michael B Nicholl
IL-33 is a member of the IL-1 family of cytokines, and no study has been performed to address its direct anti-tumor effect. This study is designed to investigate whether IL-33 has any direct effect on pancreatic cancer. Clonogenic survival assay, immunohistochemistry, TUNEL staining, proliferation, caspase-3 activity kits and RT-PCR were used to evaluate the effects of IL-33 on cell survival, proliferation and apoptosis of a pancreatic cancer cell line, MIA PaCa-2. We found that the percentage of colonies of MIA PaCa-2 cells, PCNA+ cells and the OD value of cancer cells were all decreased in the presence of IL-33...
February 2017: Medical Oncology
https://www.readbyqxmd.com/read/28056036/the-9aatad-is-exclusive-activation-domain-in-gal4
#17
Martin Piskacek, Marek Havelka, Martina Rezacova, Andrea Knight
The Gal4 protein is a well-known prototypic acidic activator that has multiple activation domains. We have previously identified a new activation domain called the nine amino acid transactivation domain (9aaTAD) in Gal4 protein. The family of the 9aaTAD activators currently comprises over 40 members including p53, MLL, E2A and other members of the Gal4 family; Oaf1, Pip2, Pdr1 and Pdr3. In this study, we revised function of all reported Gal4 activation domains. Surprisingly, we found that beside of the activation domain 9aaTAD none of the previously reported activation domains had considerable transactivation potential and were not involved in the activation of transcription...
2017: PloS One
https://www.readbyqxmd.com/read/28041841/actl6a-is-co-amplified-with-p63-in-squamous-cell-carcinoma-to-drive-yap-activation-regenerative-proliferation-and-poor-prognosis
#18
Srinivas Vinod Saladi, Kenneth Ross, Mihriban Karaayvaz, Purushothama R Tata, Hongmei Mou, Jayaraj Rajagopal, Sridhar Ramaswamy, Leif W Ellisen
Loss-of-function mutations in SWI/SNF chromatin-remodeling subunit genes are observed in many cancers, but an oncogenic role for SWI/SNF is not well established. Here, we reveal that ACTL6A, encoding an SWI/SNF subunit linked to stem cell and progenitor cell function, is frequently co-amplified and highly expressed together with the p53 family member p63 in head and neck squamous cell carcinoma (HNSCC). ACTL6A and p63 physically interact, cooperatively controlling a transcriptional program that promotes proliferation and suppresses differentiation, in part through activation of the Hippo-YAP pathway via regulators including WWC1...
January 9, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28012196/microrna-184-modulates-human-central-nervous-system-lymphoma-cells-growth-and-invasion-by-targeting-iaspp
#19
Xiao-Gong Liang, Wen-Tong Meng, Lian-Jie Hu, Lin Li, Hongyun Xing, Gan Xie, An-Qiong Wang, Yong-Qian Jia
Central nervous system lymphoma (CNSL) remains a diagnostical and therapeutical challenge. MiRNAs post-transcriptionally regulate expression of targeted mRNAs through binding to their 3' UTR to inhibit their translation or promote their degradation. Oncoprotein inhibitory member of the ASPP family (iASPP), a key inhibitor of tumor suppressor p53, has been reported to play oncogenic role in cancers. Our present study was aimed to determine whether the miR-184/iASPP axis is involved in the proliferation and invasion of CNSL...
December 24, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28008929/the-overexpressed-functional-transient-receptor-potential-channel-trpm2-in-oral-squamous-cell-carcinoma
#20
Ling-Yan Zhao, Wan-Lin Xu, Zeng-Qi Xu, Cui Qi, Yang Li, Jie Cheng, Lai-Kui Liu, Yu-Nong Wu, Jun Gao, Jin-Hai Ye
TRPM2, one member of the transient receptor potential (TRP) protein super-family, is a Ca(2+)-permeable channel that is activated by oxidative stress and confers susceptibility to cell death. In the human tongue specimens of carcinoma and the tongue carcinoma SCC cell lines, we observed the enhanced expression of TRPM2. By means of the whole-cell electrophysiological recording, the ADPR-induced currents mediated by TRPM2 were recorded in cultured SCC9 cells. Moreover, after H2O2 treatment for 24 hours, the apoptotic number of SCC9 cells was significantly increased...
December 23, 2016: Scientific Reports
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