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P53 -apoptosis

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https://www.readbyqxmd.com/read/28108772/peritherapeutic-serum-p53-antibody-titers-are-predictors-of-survival-in-patients-with-esophageal-squamous-cell-carcinoma-undergoing-neoadjuvant-chemotherapy-and-surgery
#1
Kotaro Yamashita, Tomoki Makino, Koji Tanaka, Makoto Yamasaki, Masaaki Yamamoto, Yasuhiro Miyazaki, Tsuyoshi Takahashi, Yukinori Kurokawa, Kiyokazu Nakajima, Shuji Takiguchi, Masaki Mori, Yuichiro Doki
BACKGROUND: Although the preoperative serum level of p53 antibodies (s-p53-Abs) is reported to be a prognostic factor in esophageal squamous cell carcinoma (ESCC) patients, the clinical significance of post-therapeutic s-p53-Abs or the peritherapeutic changes in s-p53-Abs associated with the prognosis or treatment response of ESCC patients undergoing surgery following preoperative chemotherapy remains unclear. METHODS: s-p53-Abs titers were peritherapeutically measured in 136 ESCC patients who underwent surgery following preoperative chemotherapy in our department from 2008 to 2014...
January 20, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28108744/increased-breast-cancer-risk-with-habp1-p32-gc1qr-genetic-polymorphism-rs2285747-and-its-upregulation-in-northern-chinese-women
#2
Yongdong Jiang, Hao Wu, Jing Liu, Yanbo Chen, Jingjing Xie, Yashuang Zhao, Da Pang
OBJECT: Hyaluronic acid binding protein 1 (HABP1/p32/gC1qR) is overexpressed in breast cancer. However, it is unknown whether HABP1 gene polymorphisms affect breast cancer risk. This study aims to evaluate the potential association of single nucleotide polymorphisms (SNPs) of HABP1 with breast cancer in northern Chinese women. RESULTS: The minor allele of rs2285747 was strongly associated with breast cancer with OR of 1.553 (95% CI = 1.251-1.927). SNP rs2285747 was also associated with high HABP1 protein expression under the co-dominant and dominant model (p = 0...
January 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28108518/a-transposon-based-analysis-reveals-rasa1-is-involved-in-triple-negative-breast-cancer
#3
Cristian Suárez-Cabrera, Rita M Quintana, Ana Bravo, M LLanos Casanova, Angustias Page, Josefa P Alameda, Jesus M Paramio, Alicia Maroto, Javier Salamanca, Adam J Dupuy, Angel Ramírez, Manuel Navarro
RAS genes are mutated in 20% of human tumors, but these mutations are very rare in breast cancer. Here we used a mouse model to generate tumors upon activation of a mutagenic T2Onc2 transposon via expression of a transposase driven by the keratin K5 promoter in a p53+/- background. These animals mainly developed mammary tumors, most of which had transposon insertions in one of two RASGAP genes, neurofibromin1 (NF1) and RAS p21 protein activator (Rasa1). Immunohistochemical analysis of a collection of human breast tumors confirmed that low expression of RASA1 is frequent in basal (triple-negative) and ER-negative tumors...
January 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28108462/setd8-inhibition-activates-p53-in-high-risk-neuroblastoma
#4
(no author information available yet)
Targeting SETD8 reduces neuroblastoma cell growth and induces differentiation to extend survival.
January 20, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28108301/pfkfb3-a-direct-target-of-p63-is-required-for-proliferation-and-inhibits-differentiation-in-epidermal-keratinocytes
#5
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/28108249/synthesis-and-biological-evaluation-of-thiazole-derivatives-as-novel-usp7-inhibitors
#6
Chao Chen, Jiemei Song, Jinzheng Wang, Chang Xu, Caiping Chen, Wei Gu, Hongbin Sun, Xiaoan Wen
Herpesvirus-associated Ubiquitin-Specific Protease (HAUSP, also called USP7) interacts with and stabilizes Mdm2, and represents one of the first examples that deubiquitinases oncogenic proteins. USP7 has been regarded as a potential drug target for cancer therapy. Inhibitors of USP7 have been recently shown to suppress tumor cell growth in vitro and in vivo. Based on leading USP7 inhibitors P5091 and P22077, we designed and synthesized a series of thiazole derivatives. The results of in vitro assays showed that the thiazole compounds exhibited low micromolar inhibition activity against both USP7 enzyme and cancer cell lines...
January 10, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28106707/association-study-between-polymorphisms-of-the-p53-and-lymphotoxin-alpha-lta-genes-and-the-risk-of-proliferative-vitreoretinopathy-retinal-detachment-in-a-mexican-population
#7
Natalia Quiroz-Casian, David Lozano-Giral, Antonio Miranda-Duarte, Ivan Garcia-Montalvo, Jose L Rodriguez-Loaiza, Juan C Zenteno
PURPOSE: To report the results of an association study between single-nucleotide polymorphisms of the p53 and LTA genes and the risk of proliferative vitreoretinopathy (PVR)/retinal detachment (RD) in a Mexican cohort. METHODS: A total of 380 unrelated subjects were studied, including 98 patients with primary rhegmatogenous RD without PVR, 82 patients with PVR after RD surgery, and 200 healthy, ethnically matched subjects. Genotyping of single-nucleotide polymorphisms rs1042522 (p53 gene) and rs2229094 (LTA gene) was performed by direct nucleotide sequencing...
January 18, 2017: Retina
https://www.readbyqxmd.com/read/28106538/a-polymorphism-in-mir-34b-c-as-a-potential-biomarker-for-early-onset-of-hereditary-retinoblastoma
#8
Ivna N S R Carvalho, Adriana H O Reis, Anna C E Dos Santos, Fernando R Vargas
BACKGROUND: Retinoblastoma (RB) is a malignant pediatric tumor and, mainly because of late diagnosis, most patients undergo enucleation. The tumor almost always initiates by two inactivation events at the RB1 gene. Single nucleotide polymorphisms (SNPs) in p53 pathway have been found to represent genetic modifiers of RB. OBJECTIVE: To investigate whether a SNP (rs4938723T > C) in mir-34b/c gene, a key effector of p53, could influence RB risk and patients' age of onset...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28106106/serous-tubal-intraepithelial-neoplasia-the-concept-and-its-application
#9
REVIEW
Emily E K Meserve, Jan Brouwer, Christopher P Crum
In recent years it has become clear that many extra-uterine (pelvic) high-grade serous carcinomas (serous carcinomas) are preceded by a precursor lesion in the distal fallopian tube. Precursors range from small self-limited 'p53 signatures' to expansile serous tubal intraepithelial neoplasms that include both serous tubal epithelial proliferations (or lesions) of uncertain significance and serous tubal intraepithelial carcinomas. These precursors can be considered from three perspectives. The first is biologic underpinnings, which are multifactorial, and include the intersection of DNA damage with Tp53 mutations and disturbances in transcriptional regulation that increase with age...
January 20, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28106087/dynamical-states-possibilities-and-propagation-of-stress-signal
#10
Md Zubbair Malik, Shahnawaz Ali, Soibam Shyamchand Singh, Romana Ishrat, R K Brojen Singh
The stress driven dynamics of Notch-Wnt-p53 cross-talk is subjected to a few possible dynamical states governed by simple fractal rules, and allowed to decide its own fate by choosing one of these states which are contributed from long range correlation with varied fluctuations due to active molecular interaction. The topological properties of the networks corresponding to these dynamical states have hierarchical features with assortive structure. The stress signal driven by nutlin and modulated by mediator GSK3 acts as anti-apoptotic signal in this system, whereas, the stress signal driven by Axin and modulated by GSK3 behaves as anti-apoptotic for a certain range of Axin and GSK3 interaction, and beyond which the signal acts as favor-apoptotic signal...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105216/identification-of-potential-therapeutic-targets-for-colorectal-cancer-by-bioinformatics-analysis
#11
Ming Yan, Maomin Song, Rixing Bai, Shi Cheng, Wenmao Yan
The aim of the present study was to identify potential therapeutic targets for colorectal cancer (CRC). The gene expression profile GSE32323, containing 34 samples, including 17 specimens of CRC tissues and 17 of paired normal tissues from CRC patients, was downloaded from the Gene Expression Omnibus database. Following data preprocessing using the Affy and preprocessCore packages, the differentially-expressed genes (DEGs) between the two types of samples were identified with the Linear Models for Microarray Analysis package...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105204/combining-fisetin-and-ionizing-radiation-suppresses-the-growth-of-mammalian-colorectal-cancers-in-xenograft-tumor-models
#12
Jyh-Der Leu, Bo-Shen Wang, Shu-Jun Chiu, Chun-Yuan Chang, Chien-Chih Chen, Fu-Du Chen, Shiirevnyamba Avirmed, Yi-Jang Lee
Fisetin (3,7,3',4'-tetrahydroxyflavone), which belongs to the flavonoid group of polyphenols and is found in a wide range of plants, has been reported to exhibit a number of biological activities in human cancer cells, including antioxidant, anti-inflammatory, antiangiogenic, anti-invasive and antiproliferative effects. Although previous in vitro studies have shown that fisetin treatment increases the apoptotic rate and enhances the radiosensitivity of human colorectal cancer cells, the in vivo effects of fisetin on tumor growth remain unclear...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105201/comparison-of-microrna-expression-profiles-in-k562-cells-derived-microvesicles-and-parental-cells-and-analysis-of-their-roles-in-leukemia
#13
Xiaomei Chen, Wei Xiong, Huiyu Li
Microvesicles (MVs) are 30-1,000-nm extracellular vesicles that are released from a multitude of cell types and perform diverse cellular functions, including intercellular communication, antigen presentation, and transfer of proteins, messenger RNA and microRNA (also known as miR). MicroRNAs have been demonstrated to be aberrantly expressed in leukemia, and the overall microRNA expression profile may differentiate normal blood cells vs. leukemia cells. MVs containing microRNAs may enable intercellular cross-talk in vivo...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105167/cisplatin-induces-hepg2-cell-cycle-arrest-through-targeting-specific-long-noncoding-rnas-and-the-p53-signaling-pathway
#14
Ping Wang, Jiayue Cui, Jihong Wen, Yunhui Guo, Liangzi Zhang, Xia Chen
Cisplatin has been used effectively in the treatment of hepatocellular carcinoma (HCC). Long noncoding RNAs (lncRNAs) were recently reported to contribute to the pathogenesis and progression of HCC. Their molecular mechanism related to cisplatin treatment remains unclear. The purpose of this study is to identify specific lncRNAs and to clarify their functions in HCC after cisplatin exposure. Reannotation and identification of differentially expressed lncRNAs were performed using the microarray data set GSE38122 in the Gene Expression Omnibus database...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105149/t-14-18-q32-q21-in-chronic-lymphocytic-leukemia-patients-report-of-two-cases-and-a-literature-review
#15
Weifeng Chen, Yi Miao, Rong Wang, Yujie Wu, Hairong Qiu, Wei Xu, Jianyong Li, Lei Fan, Xin Xu
The chromosomal abnormality t(14;18)(q32;q21) is most commonly associated with germinal center-derived B-cell lymphomas, particularly follicular lymphoma (FL). Generally, it is considered a hallmark of FL. The t(14;18)(q32;q21) translocation is rare in chronic lymphocytic leukemia (CLL) and its prognostic significance remains unclear. In the present study, two cases of CLL with t(14;18)(q32;q21) were diagnosed using conventional cytogenetic analysis and fluorescence in situ hybridization. Both patients presented with leukemia and the morphological features and immunophenotypes were typical of CLL...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105142/antitumor-effects-of-recombinant-human-adenovirus-p53-against-human-cutaneous-squamous-cell-carcinoma-in-mice
#16
Yuanchao Li, Wei He, Rupeng Wang, Libin Yang, Chunli Zhou, Bin Zhang
The present study was conducted to identify the anti-tumor effects of rAd/p53, which is a recombinant human serotype 5 adenovirus, in cutaneous squamous cell carcinoma (cSCC). Mouse models of human cSCC were constructed by injecting human cutaneous squamous cell carcinoma cells into both flanks of nude mice. Subsequently, the 75 nude mice with cSCC xenograft tumors were randomly divided into recombinant human serotype 5 adenovirus (rAd)/p53, rAd/p53 + 5-fluorouracil (5-Fu) and 5-Fu groups. One side of the tumors was administered the therapeutic agents as the therapeutic group, whereas the remaining side was treated with medical saline as the control...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28104674/p53-deletion-and-nrasg12d-cooperate-for-aml
#17
William Vainchenker, Isabelle Plo
No abstract text is available yet for this article.
January 19, 2017: Blood
https://www.readbyqxmd.com/read/28103994/-analysis-of-microrna-expression-profile-in-serum-of-patients-with-electrical-burn-or-thermal-burn
#18
Q F Ruan, M J Jiang, Z Q Ye, C L Zhao, W G Xie
Objective: To explore the differential expression of microRNAs in the serum among patients with electrical burn or thermal burn and healthy persons and to explore the significance. Methods: In this study we included three patients with electrical burn and three patients with thermal burn, conforming to the inclusion criteria and hospitalized in our burn ward from June to August 2015, and three healthy adult volunteers. Their serum samples were separated from whole blood and divided into electrical burn group, thermal burn group, and normal control group...
January 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28102846/hepatitis-b-virus-x-protein-promotes-the-stem-like-properties-of-ov6-cancer-cells-in-hepatocellular-carcinoma
#19
Chao Wang, Ming-da Wang, Peng Cheng, Hai Huang, Wei Dong, Wei-Wei Zhang, Peng-Peng Li, Chuan Lin, Ze-Ya Pan, Meng-Chao Wu, Wei-Ping Zhou
Hepatitis B virus X protein (HBx) and cancer stem-like cells (CSCs) have both been implicated in the occurrence and development of HBV-related hepatocellular carcinoma (HCC). However, whether HBx contributes to the stem-like properties of OV6(+) CSCs in HCC remains elusive. In this study, we showed that the concomitant expression of HBx and OV6 was closely associated with the clinical outcomes and prognosis of patients with HBV-related HCC. HBx was required for the stem-like properties of OV6(+) liver CSCs, including self-renewal, stem cell-associated gene expression, tumorigenicity and chemoresistance...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102842/zika-virus-elicits-p53-activation-and-genotoxic-stress-in-human-neural-progenitors-similar-to-mutations-involved-in-severe-forms-of-genetic-microcephaly-and-p53
#20
Vincent El Ghouzzi, Federico T Bianchi, Ivan Molineris, Bryan C Mounce, Gaia E Berto, Malgorzata Rak, Sophie Lebon, Laetitia Aubry, Chiara Tocco, Marta Gai, Alessandra Ma Chiotto, Francesco Sgrò, Gianmarco Pallavicini, Etienne Simon-Loriere, Sandrine Passemard, Marco Vignuzzi, Pierre Gressens, Ferdinando Di Cunto
No abstract text is available yet for this article.
January 19, 2017: Cell Death & Disease
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