keyword
MENU ▼
Read by QxMD icon Read
search

p53 family member

keyword
https://www.readbyqxmd.com/read/29238070/the-interplay-between-mutant-p53-and-the-mevalonate-pathway
#1
REVIEW
Alejandro Parrales, Elizabeth Thoenen, Tomoo Iwakuma
Missense mutations in the TP53 gene lead to accumulation of dysfunctional TP53 proteins in tumors, showing oncogenic gain-of-function (GOF) activities. Stabilization of mutant TP53 (mutp53) is required for the GOF; however, the mechanisms by which mutp53 promotes cancer progression and how mutp53 stability is regulated are not completely understood. Recent work from our laboratory has identified statins, inhibitors of the mevalonate pathway, as degraders of conformational mutp53. Specific reduction of mevalonate-5-phosphate (MVP), a metabolic intermediate in the mevalonate pathway, by statins or mevalonate kinase (MVK) knockdown triggers CHIP ubiquitin ligase-mediated degradation of conformational mutp53 by inhibiting interaction between mutp53 and DNAJA1, a Hsp40 family member...
December 13, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29233040/integrin-%C3%AE-4-is-a-novel-transcriptional-target-of-tap73
#2
Ningxia Xie, Polina Vikhreva, Margherita Annicchiarico-Petruzzelli, Ivano Amelio, Richard A Knight, Gerry Melino
As a member of p53 family, p73 has attracted intense investigations due to its structural and functional similarities to p53. Among more than ten p73 variants, the transactivation (TA) domain-containing isoform TAp73 is the one that imitates the p53's behavior most. TAp73 induces apoptosis and cell cycle arrest, which endows it the capacity of tumour suppression. Also, it can exert diverse biological influences on cells through activating a complex and context dependent transcriptional programme. The transcriptional activities further broaden its roles in more intricate biological processes...
December 13, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29228353/the-roles-of-p53-and-its-family-proteins-p63-and-p73-in-the-dna-damage-stress-response-in-organogenesis-stage-mouse-embryos
#3
Nazem El Husseini, Barbara F Hales
Members of the P53 transcription factor family, P53, P63 and P73, play important roles in normal development and in regulating the expression of genes that control apoptosis and cell cycle progression in response to genotoxic stress. P53 is involved in the DNA damage response pathway that is activated by hydroxyurea in organogenesis-stage murine embryos. The extent to which P63 and P73 contribute to this stress response is not known. To address this question, we examined the roles of P53, P63 and P73 in mediating the response of Trp53-positive and Trp53-deficient murine embryos to a single dose of hydroxyurea (400 mg/kg) on gestational day 9...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29222041/tap73-inhibits-cell-invasion-and-migration-by-directly-activating-kai1-expression-in-colorectal-carcinoma
#4
Woo-Kyun Bae, Chang-Soo Hong, Mi-Ra Park, Eun-Gene Sun, Ji-Hee Lee, Keunsoo Kang, Kyung-Hyun Ryu, Hyun-Jeong Shim, Jun-Eul Hwang, Sang-Hee Cho, Ik-Joo Chung
p73 is a member of the p53 family of transcription factors and, like p53, plays a role as a tumor suppressor. p73 is involved in development, proliferation, apoptosis and metastasis. However, the precise molecular mechanisms underlying its function in inhibiting metastasis remain largely unknown. Here, we show that induction of TAp73 decreased invasion and migration activity of colorectal cancer cells, whereas knockdown of TAp73 led to increased invasion and migration activity. KAI1 was identified as a transcriptional target of TAp73 and its expression is indispensable for TAp73-mediated inhibition of cell invasion and migration...
December 5, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29216538/tip60-contributes-to-porcine-embryonic-development-by-regulating-dna-damage-response
#5
Jing Guo, Wenjun Zhou, Ying-Jie Niu, Kyung-Tae Shin, Young Tae Heo, Nam-Hyung Kim, Xiang-Shun Cui
The acetyltransferase TIP60 (also known as Kat5) is a member of the MYST family of histone acetyltransferases and was initially identified as a cellular protein. TIP60 acetylates histone and non-histone proteins and is involved in diverse biological processes, including apoptosis, cell cycle, and DNA damage responses. In this study, a specific inhibitor of TIP60 was used to detect the function of TIP60 in porcine parthenogenetic embryos. The results showed that TIP60 inhibition impaired porcine parthenogenetic embryonic development...
December 2, 2017: Theriogenology
https://www.readbyqxmd.com/read/29193730/the-3p14-2-tumour-suppressor-adamts9-is-inactivated-by-promoter-cpg-methylation-and-inhibits-tumour-cell-growth-in-breast-cancer
#6
Bianfei Shao, Yixiao Feng, Hongbin Zhang, Fang Yu, Qianqian Li, Cui Tan, Hongying Xu, Jianming Ying, Lili Li, Dejuan Yang, Weiyan Peng, Jun Tang, Shuman Li, Guosheng Ren, Qian Tao, Tingxiu Xiang
Chromosome region 3p12-14 is an important tumour suppressor gene (TSG) locus for multiple cancers. ADAMTS9, a member of the metalloprotease large family, has been identified as a candidate 3p14.2 TSG inactivated by aberrant promoter CpG methylation in several carcinomas, but little known about its expression and function in breast cancer. In this report, ADAMTS9 expression and methylation was analysed in breast cancer cell lines and tissue samples. ADAMTS9 RNA was significantly down-regulated in breast cancer cell lines (6/8)...
November 29, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29193479/bcl-xl-binds-and-antagonizes-rassf6-tumor-suppressor-to-suppress-p53-expression
#7
Xiaoyin Xu, Hiroaki Iwasa, Shakhawoat Hossain, Aradhan Sarkar, Junichi Maruyama, Kyoko Arimoto-Matsuzaki, Yutaka Hata
RASSF6, a member of the tumor suppressor Ras-association domain family proteins, induces apoptosis in the caspase-dependent and caspase-independent manners. RASSF6 interacts with MDM2 and stabilizes p53. BCL-XL is a prosurvival member of BCL-2 family proteins. BCL-XL directly inhibits proapoptotic BAX and BAK. BCL-XL also traps tBID, a proapoptotic activator BH3-only protein, and sequesters p53. In addition, BCL-XL regulates the mitochondrial membrane permeability via voltage-dependent anion channel. In these manners, BCL-XL plays an antiapoptotic role...
November 28, 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/29182544/trim8-making-the-right-decision-between-the-oncogene-and-tumour-suppressor-role
#8
REVIEW
Mariano Francesco Caratozzolo, Flaviana Marzano, Francesca Mastropasqua, Elisabetta Sbisà, Apollonia Tullo
The TRIM8/GERP protein is a member of the TRIM family defined by the presence of a common domain structure composed of a tripartite motif including a RING-finger, one or two B-box domains, and a coiled-coil motif. The TRIM8 gene maps on chromosome 10 within a region frequently found deleted and rearranged in tumours and transcribes a 3.0-kB mRNA. Its expression is mostly ubiquitously in murine and human tissues, and in epithelial and lymphoid cells, it can be induced by IFNγ. The protein spans 551 aa and is highly conserved during evolution...
November 28, 2017: Genes
https://www.readbyqxmd.com/read/29163768/inhibitor-of-growth-protein-4-interacts-with-beclin-1-and-represses-autophagy
#9
Valentina Sica, José Manuel Bravo-San Pedro, Guo Chen, Guillermo Mariño, Sylvie Lachkar, Valentina Izzo, Maria Chiara Maiuri, Mireia Niso-Santano, Guido Kroemer
Beclin 1 (BECN1) is a multifunctional protein that activates the pro-autophagic class III phosphatidylinositol 3-kinase (PIK3C3, best known as VPS34), yet also interacts with multiple negative regulators. Here we report that BECN1 interacts with inhibitor of growth family member 4 (ING4), a tumor suppressor protein that is best known for its capacity to interact with the tumor suppressor protein p53 (TP53) and the acetyltransferase E1A binding protein p300 (EP300). Removal of TP53 or EP300 did not affect the BECN1/ING4 interaction, which however was lost upon culture of cells in autophagy-inducing, nutrient free conditions...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156626/surface-plasmon-resonance-sensing-of-biorecognition-interactions-within-the-tumor-suppressor-p53-network
#10
REVIEW
Ilaria Moscetti, Salvatore Cannistraro, Anna Rita Bizzarri
Surface Plasmon Resonance (SPR) is a powerful technique to study the kinetics of biomolecules undergoing biorecognition processes, particularly suited for protein-protein interactions of biomedical interest. The potentiality of SPR was exploited to sense the interactions occurring within the network of the tumor suppressor p53, which is crucial for maintaining genome integrity and whose function is inactivated, mainly by down regulation or by mutation, in the majority of human tumors. This study includes p53 down-regulators, p53 mutants and also the p53 family members, p63 and p73, which could vicariate p53 protective function...
November 20, 2017: Sensors
https://www.readbyqxmd.com/read/29150734/the-sirtuin-1-2-inhibitor-tenovin-1-induces-a-nonlinear-apoptosis-inducing-factor-dependent-cell-death-in-a-p53-null-ewing-s-sarcoma-cell-line
#11
Christian Marx, Lisa Marx-Blümel, Nora Lindig, René Thierbach, Doerte Hoelzer, Sabine Becker, Susan Wittig, Roland Lehmann, Hortense Slevogt, Thorsten Heinzel, Zhao-Qi Wang, James F Beck, Jürgen Sonnemann
The sirtuin 1/2 inhibitor tenovin-1 activates p53 and may have potential in the management of cancer. Here, we investigated the responsiveness of Ewing's sarcoma cells to tenovin-1. We examined its effects in two Ewing's sarcoma cell lines with different p53 status, i.e. in p53 wild-type and p53 null cells. Effects were assessed by flow cytometric analyses of cell death, mitochondrial membrane depolarization and reactive oxygen species (ROS) generation, by caspase 3/7 activity measurement, by mRNA expression profiling and by immunoblotting...
November 18, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/29116019/cldn6-promotes-chemoresistance-through-gstp1-in-human-breast-cancer
#12
Minlan Yang, Yanru Li, Xiangfeng Shen, Yang Ruan, Yan Lu, Xiangshu Jin, Peiye Song, Yantong Guo, Xiaoli Zhang, Huinan Qu, Yijia Shao, Chengshi Quan
BACKGROUND: Claudin-6 (CLDN6), a member of CLDN family and a key component of tight junction, has been reported to function as a tumor suppressor in breast cancer. However, whether CLDN6 plays any role in breast cancer chemoresistance remains unclear. In this study, we investigated the role of CLDN6 in the acquisition of chemoresistance in breast cancer cells. METHODS: We manipulated the expression of CLDN6 in MCF-7 and MCF-7/MDR cells with lv-CLDN6 and CLDN6-shRNA and investigated whether CLDN6 manipulation lead to different susceptibilities to several chemotherapeutic agents in these cells...
November 7, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29109099/targeted-gene-sequencing-of-gallbladder-carcinoma-identifies-high-impact-somatic-and-rare-germline-mutations
#13
REVIEW
Saurabh Yadav, Navonil DE Sarkar, Niraj Kumari, Narendra Krishnani, Ashok Kumar, Balraj Mittal
BACKGROUND: Gallbladder carcinoma (GBC) is a subtype of biliary tract malignancy with poor prognosis and high fatality rate. The present study was designed to uncover somatic and rare germline mutations in GBC to reveal the disease biology and understand the clinical importance of mutation profile in terms of prognostics and actionability. MATERIALS AND METHODS: We performed ultra-deep sequencing across 409 cancer-related genes in 11 GBC patients of North-Indian descent...
November 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/29107083/p63-and-p73-repress-cxcr5-chemokine-receptor-gene-expression-in-p53-deficient-mcf-7-breast-cancer-cells-during-genotoxic-stress
#14
Nikita A Mitkin, Alisa M Muratova, George V Sharonov, Kirill V Korneev, Ekaterina N Sviriaeva, Dmitriy Mazurov, Anton M Schwartz, Dmitry V Kuprash
Many types of chemotherapeutic agents induce of DNA-damage that is accompanied by activation of p53 tumor suppressor, a key regulator of tumor development and progression. In our previous study we demonstrated that p53 could repress CXCR5 chemokine receptor gene in MCF-7 breast cancer cells via attenuation of NFkB activity. In this work we aimed to determine individual roles of p53 family members in the regulation of CXCR5 gene expression under genotoxic stress. DNA-alkylating agent methyl methanesulfonate caused a reduction in CXCR5 expression not only in parental MCF-7 cells but also in MCF-7-p53off cells with CRISPR/Cas9-mediated inactivation of the p53 gene...
November 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29106393/dhrs2-inhibits-cell-growth-and-motility-in-esophageal-squamous-cell-carcinoma
#15
Y Zhou, L Wang, X Ban, T Zeng, Y Zhu, M Li, X-Y Guan, Y Li
Esophageal squamous cell carcinoma (ESCC) is highly prevailing in Asia and it is ranked in the most aggressive squamous cell carcinomas. High-frequency loss of heterozygosity occurred in chromosome 14q11.2 in many tumors including ESCC, suggesting that one or more tumor-suppressor genes might exist within this region. In this study, we identified the tumor-suppressing role of DHRS2 (short-chain dehydrogenase/reductase family, member 2) at 14q11.2 in ESCCs. Downregulation of DHRS2 occurred in 30.8% of primary ESCC tumor tissues vs paired non-tumorous tissues...
November 6, 2017: Oncogene
https://www.readbyqxmd.com/read/29084019/expression-of-klf6-sv2-in-colorectal-cancer-and-its-impact-on-proliferation-and-apoptosis
#16
Biao Zhang, Dan-Dan Guo, Jia-Ying Zheng, Yan-An Wu
Kruppel like factor 6 (KLF6), a member of KLF family, which has classic zinc finger structure, is broadly considered to have anticancer activity. The role of SV2 variant, one of KLF6 alternative splicing isoforms has not yet been definite in the colorectal cancer. This study aimed to detect the expression of the KLF6-SV2 in colorectal cancer and investigate its impact on cell proliferation and apoptosis. qRT-PCR was used to quantitatively determine KLF6-SV2 mRNA expression in colorectal cancer samples, corresponding normal tissue, normal colonic mucosal cell line FHC and seven colorectal cancer cell lines...
October 27, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29077094/non-oncogenic-roles-of-tap73-from-multiciliogenesis-to-metabolism
#17
REVIEW
Alice Nemajerova, Ivano Amelio, Jakob Gebel, Volker Dötsch, Gerry Melino, Ute M Moll
The p53 family of transcription factors (p53, p63 and p73) covers a wide range of functions critical for development, homeostasis and health of mammals across their lifespan. Beside the well-established tumor suppressor role, recent evidence has highlighted novel non-oncogenic functions exerted by p73. In particular, p73 is required for multiciliated cell (MCC) differentiation; MCCs have critical roles in brain and airways to move fluids across epithelial surfaces and to transport germ cells in the reproductive tract...
October 27, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29065514/the-role-of-mdm2-in-promoting-genome-stability-versus-instability
#18
REVIEW
M Reza Saadatzadeh, Adily N Elmi, Pankita H Pandya, Khadijeh Bijangi-Vishehsaraei, Jixin Ding, Christopher W Stamatkin, Aaron A Cohen-Gadol, Karen E Pollok
In cancer, the mouse double minute 2 (MDM2) is an oncoprotein that contributes to the promotion of cell growth, survival, invasion, and therapeutic resistance. The impact of MDM2 on cell survival versus cell death is complex and dependent on levels of MDM2 isoforms, p53 status, and cellular context. Extensive investigations have demonstrated that MDM2 protein-protein interactions with p53 and other p53 family members (p63 and p73) block their ability to function as transcription factors that regulate cell growth and survival...
October 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29057306/inhibiting-system-xc-and-glutathione-biosynthesis-a-potential-achilles-heel-in-mutant-p53-cancers
#19
Nicholas J Clemons, David S Liu, Cuong P Duong, Wayne A Phillips
Effective therapeutic strategies to target mutant tumor protein p53 (TP53, best known as p53) cancers remain an unmet medical need. We found that mutant p53 impairs the function of nuclear factor (erythroid-derived 2)-like 2 (NFE2L2, commonly known as NRF2), suppresses solute carrier family 7 member 11 (SLC7A11) expression, and diminishes cellular glutamate/cystine exchange. This decreases glutathione biosynthesis, resulting in redox imbalance. Mutant p53 tumors are thus inherently susceptible to further perturbations of the SLC7A11/glutathione axis...
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/29030916/identification-and-characterization-of-a-metastatic-suppressor-brms1l-as-a-target-gene-of-p53
#20
Ryota Koyama, Miyuki Tamura, Takafumi Nakagaki, Tomoko Ohashi, Masashi Idogawa, Hiromu Suzuki, Takashi Tokino, Yasushi Sasaki
The tumor suppressor p53 and its family members, p63 and p73, play a pivotal role in the cell fate determination in response to diverse upstream signals. As transcription factors, p53 family proteins regulate a number of genes that are involved in cell-cycle arrest, apoptosis, senescence, and maintenance of genomic stability. Recent studies revealed that p53 family proteins are important for the regulation of cell invasion and migration. Microarray analysis showed that breast cancer metastasis-suppressor 1- like (BRMS1L) is upregulated by p53 family proteins, specifically p53, TAp63γ, and TAp73β...
October 13, 2017: Cancer Science
keyword
keyword
10218
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"