keyword
MENU ▼
Read by QxMD icon Read
search

Oncogenesis

keyword
https://www.readbyqxmd.com/read/28651004/a-human-endogenous-retrovirus-derived-gene-that-can-contribute-to-oncogenesis-by-activating-the-erk-pathway-and-inducing-migration-and-invasion
#1
Cécile Lemaître, Jhen Tsang, Caroline Bireau, Thierry Heidmann, Marie Dewannieux
Endogenous retroviruses are cellular genes of retroviral origin captured by their host during the course of evolution and represent around 8% of the human genome. Although most are defective and transcriptionally silenced, some are still able to generate retroviral-like particles and proteins. Among these, the HERV-K(HML2) family is remarkable since its members have amplified relatively recently and many of them still have full length coding genes. Furthermore, they are induced in cancers, especially in melanoma, breast cancer and germ cell tumours, where viral particles, as well as the envelope protein (Env), can be detected...
June 26, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28648701/universal-genomic-testing-the-next-step-in-oncological-decision-making-or-a-dead-end-street
#2
Julian Walter Holch, Klaus Hans Metzeler, Andreas Jung, Kristina Riedmann, Philipp Jakob Jost, Wilko Weichert, Thomas Kirchner, Volker Heinemann, Christoph Benedikt Westphalen
The concept of 'personalised medicine' aims at allocating patients to different treatment options based on individual characteristics to optimise treatment benefit and side effects. In oncology, personalised treatments coupled to biomarkers have led to the approval of targeted agents with high anti-tumour activity. However, these therapies are often limited to narrow, molecularly defined subsets of patients with a specific morphomolecular tumour profile. Recently, it became obvious that the same molecular alteration might drive oncogenesis in many different tumours, and it might be beneficial to target the alteration in a histology informed but entity-overarching way...
June 22, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28647652/kinase-activity-in-recurring-primary-skull-base-chordomas-and-chondrosarcomas-identification-of-novel-pathways-of-oncogenesis-and-potential-drug-targets
#3
Philip Tatman, Joshua Osbun, Youssef Yakkioui, Sumanpret Kaur, Carolina Parada, Tina Busald, Donald Born, Owais Ahmad, Jing Zhang, Manuel Ferreira
OBJECTIVE: Chordomas and chondrosarcomas are tumors that can occur in the skull base. Currently, 45% of chordomas and 56% of chondrosarcomas recur within five years of surgery. The role of adjuvant therapy is highly debated. No pharmacotherapies have been approved by the FDA for chordomas or chondrosarcomas. The high propensity for recurrence and lack of definitive adjuvant therapy necessitates additional basic science research to identify molecular anomalies associated with recurrent disease...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28646552/targeting-histone-deacetylase-4-ubc9-impairs-dna-repair-for-radiosensitization-of-hepatocellular-carcinoma-cells
#4
Chiao-Ling Tsai, Wei-Lin Liu, Feng-Ming Hsu, Po-Sheng Yang, Ruoh-Fang Yen, Kai-Yuan Tzen, Ann-Lii Cheng, Pei-Jer Chen, Jason Chia-, Hsien Cheng
Several strategies to improve the efficacy of radiation therapy against hepatocellular carcinoma (HCC) have been investigated. One approach was to develop radiosensitizing compounds. Because histone deacetylase 4 (HDAC4) is highly expressed in liver cancer and known to regulate oncogenesis through chromatin structure remodeling and controlling protein access to DNA, we postulated that HDAC4 inhibition might enhance radiation's effect on HCC cells. HCC cell lines (Huh7 and PLC5) and an ectopic xenograft were pretreated with HDAC inhibitor or shRNA to knock down expression of HDAC4, and then irradiated (2...
June 23, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28646470/apobec3b-and-il-6-form-a-positive-feedback-loop-in-hepatocellular-carcinoma-cells
#5
Shuran Li, Xueyang Bao, Duowei Wang, Linjun You, Xianjing Li, Hongbao Yang, Jinsong Bian, Yun Wang, Yong Yang
APOBEC3 protein families, a DNA cytidine deaminase, were up-regulated in multiple tumors. However, the relationship between Hepatocellular carcinoma (HCC) and APOBEC3B (A3B) remains unknown. It has been confirmed that interleukin-6 (IL-6) has significant impacts on oncogenesis of HCC. Here, we reported that the expression of IL-6 was substantially up-regulated by A3B in HepG2 cells. A3B induced IL-6 expression through relocating HuR to enhance the IL-6 mRNA stability. Further analysis indicated that IL-6 also increased the expression of A3B through JAK1/STAT3 signaling pathway, which formed a positive feedback to maintain the continuous expression of A3B and IL-6, and thereby promoted the prolonged non-resolving inflammation...
May 29, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28645911/erf-competes-with-erg-for-chromatin-binding-to-control-oncogenesis
#6
(no author information available yet)
In prostate cancer, ERF loss-of-function mutations enhance ERG activity to promote tumorigenesis.
June 23, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28645612/il-1%C3%AE-induced-methylation-of-the-estrogen-receptor-er%C3%AE-gene-correlates-with-emt-and-chemoresistance-in-breast-cancer-cells
#7
Aura M Jiménez-Garduño, Mónica G Mendoza-Rodríguez, Daniel Urrutia-Cabrera, María C Domínguez-Robles, Eloy A Pérez-Yépez, Jorge Tonatiuh Ayala-Sumuano, Isaura Meza
Inflammation has been recently acknowledged as a key participant in the physiopathology of oncogenesis and tumor progression. The inflammatory cytokine IL-1β has been reported to induce the expression of markers associated with malignancy in breast cancerous cells through Epithelial-Mesenchymal Transition (EMT). Aggressive breast cancer tumors classified as Triple Negative do not respond to hormonal treatment because they lack three crucial receptors, one of which is the estrogen receptor alpha (ERα). Expression of ERα is then considered a good prognostic marker for tamoxifen treatment of this type of cancer, as the binding of this drug to the receptor blocks the transcriptional activity of the latter...
June 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28644141/prognostic-value-of-hpv-dna-status-in-cervical-cancer-before-treatment-a-systematic-review-and-meta-analysis
#8
Ping Li, Yue Tan, Li-Xia Zhu, Li-Na Zhou, Ping Zeng, Qin Liu, Min-Bin Chen, Ye Tian
BACKGROUND: Human papillomavirus (HPV), has been recognized as an vital preliminary event in the oncogenesis of cervical cancer. But the prognostic value is not well defined, because of past studies showing conflicting results. So we conducted this meta-analysis to evaluate whether HPV DNA status was associated with prognosis in cervical cancer. MATERIALS AND METHODS: A total of 17 previously published eligible studies including 2,838 cases were identified and included in this meta-analysis...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28642487/hypoxia-is-a-key-driver-of-alternative-splicing-in-human-breast-cancer-cells
#9
Jian Han, Jia Li, Jolene Caifeng Ho, Grace Sushin Chia, Hiroyuki Kato, Sudhakar Jha, Henry Yang, Lorenz Poellinger, Kian Leong Lee
Adaptation to hypoxia, a hallmark feature of many tumors, is an important driver of cancer cell survival, proliferation and the development of resistance to chemotherapy. Hypoxia-induced stabilization of hypoxia-inducible factors (HIFs) leads to transcriptional activation of a network of hypoxia target genes involved in angiogenesis, cell growth, glycolysis, DNA damage repair and apoptosis. Although the transcriptional targets of hypoxia have been characterized, the alternative splicing of transcripts that occurs during hypoxia and the roles they play in oncogenesis are much less understood...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642151/the-role-of-the-lb-structural-loop-and-its-interactions-with-the-pdz-domain-of-the-human-htra3-protease
#10
Tomasz Wenta, Przemysław Glaza, Mirosław Jarząb, Urszula Zarzecka, Dorota Żurawa-Janicka, Adam Lesner, Joanna Skórko-Glonek, Barbara Lipińska
Human HtrA3 protease is a proapoptotic protein, involved in embryo implantation and oncogenesis. In stress conditions the protease is activated by removal of its N-terminal domain. The activated form, ΔN-HtrA3L is a homotrimer composed of the protease (PD) and PDZ domains. The LB structural loop of the PD is longer by six amino acid residues than its counterparts of other human HtrA proteins and interacts with the PDZ in a way not observed in other known HtrA structures. By size exclusion chromatography of the ΔN-HtrA3L mutated variants we found that removal of the additional LB loop residues caused a complete loss of the proper trimeric structure while impairing their interactions with the PDZ domain decreased the amount of the trimers...
June 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28636942/extensive-proliferation-of-human-cancer-cells-with-ever-shorter-telomeres
#11
Rebecca A Dagg, Hilda A Pickett, Axel A Neumann, Christine E Napier, Jeremy D Henson, Erdahl T Teber, Jonathan W Arthur, C Patrick Reynolds, Jayne Murray, Michelle Haber, Alexander P Sobinoff, Loretta M S Lau, Roger R Reddel
Acquisition of replicative immortality is currently regarded as essential for malignant transformation. This is achieved by activating a telomere lengthening mechanism (TLM), either telomerase or alternative lengthening of telomeres, to counter normal telomere attrition. However, a substantial proportion of some cancer types, including glioblastomas, liposarcomas, retinoblastomas, and osteosarcomas, are reportedly TLM-negative. As serial samples of human tumors cannot usually be obtained to monitor telomere length changes, it has previously been impossible to determine whether tumors are truly TLM-deficient, there is a previously unrecognized TLM, or the assay results are false-negative...
June 20, 2017: Cell Reports
https://www.readbyqxmd.com/read/28630312/uncovering-brd4-hyperphosphorylation-associated-with-cellular-transformation-in-nut-midline-carcinoma
#12
Ranran Wang, Xing-Jun Cao, Katarzyna Kulej, Wei Liu, Tongcui Ma, Margo MacDonald, Cheng-Ming Chiang, Benjamin A Garcia, Jianxin You
The epigenetic reader BRD4 plays a vital role in transcriptional regulation, cellular growth control, and cell-cycle progression. Dysregulation of BRD4 function has been implicated in the pathogenesis of a wide range of cancers. However, how BRD4 is regulated to maintain its normal function in healthy cells and how alteration of this process leads to cancer remain poorly understood. In this study, we discovered that BRD4 is hyperphosphorylated in NUT midline carcinoma and identified CDK9 as a potential kinase mediating BRD4 hyperphosphorylation...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28617578/antibodies-against-specific-muc16-glycosylation-sites-inhibit-ovarian-cancer-growth
#13
Thapi Dharma Rao, Alberto Fernández-Tejada, Abram Axelrod, Nestor Rosales, Xiujun Yan, Sahityasri Thapi, Amy Wang, Kay J Park, Brandon Nemieboka, Jingyi Xiang, Jason S Lewis, Nariso Olvera, Douglas A Levine, Samuel J Danishefsky, David Spriggs
Expression of the retained C-terminal extracellular portion of the ovarian cancer glycoprotein MUC16 induces transformation and tumor growth. However, the mechanisms of MUC16 oncogenesis related to glycosylation are not clearly defined. We establish that MUC16 oncogenic effects are mediated through MGAT5-dependent N-glycosylation of two specific asparagine sites within its 58 amino acid ectodomain. Oncogenic signaling from the C-terminal portion of MUC16 requires the presence of Galectin-3 and growth factor receptors co-localized on lipid rafts...
June 15, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28616577/caspase-2-in-mitotic-catastrophe-the-terminator-of-aneuploid-and-tetraploid-cells
#14
Ilio Vitale, Gwenola Manic, Maria Castedo, Guido Kroemer
Mitotic catastrophe is an oncosuppressive mechanism that targets cells experiencing defective mitoses via the activation of specific cell cycle checkpoints, regulated cell death pathways and/or cell senescence. This prevents the accumulation of karyotypic aberrations, which otherwise may drive oncogenesis and tumor progression. Here, we summarize experimental evidence confirming the role of caspase 2 (CASP2) as the main executor of mitotic catastrophe, and we discuss the signals that activate CASP2 in the presence of mitotic aberrations...
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/28615518/estrogen-activated-mdm2-disrupts-mammary-tissue-architecture-through-a-p53-independent-pathway
#15
Nandini Kundu, Angelika Brekman, Jun Yeob Kim, Gu Xiao, Chong Gao, Jill Bargonetti
The Cancer Genome Atlas (TCGA) data indicate that high MDM2 expression correlates with all subtypes of breast cancer. Overexpression of MDM2 drives breast oncogenesis in the presence of wild-type or mutant p53 (mtp53). Importantly, estrogen-receptor positive (ER+) breast cancers overexpress MDM2 and estrogen mediates this expression. We previously demonstrated that this estrogen-MDM2 axis activates the proliferation of breast cancer cell lines T47D (mtp53 L194F) and MCF7 (wild-type p53) in a manner independent of increased degradation of wild-type p53 (ie, p53-independently)...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28615056/oct4-transcriptionally-regulates-the-expression-of-long-non-coding-rnas-neat1-and-malat1-to-promote-lung-cancer-progression
#16
Jayu Jen, Yen-An Tang, Ying-Hung Lu, Che-Chung Lin, Wu-Wei Lai, Yi-Ching Wang
BACKGROUND: Oct4, a key stemness transcription factor, is overexpressed in lung cancer. Here, we reveal a novel transcription regulation of long non-coding RNAs (lncRNAs) by Oct4. LncRNAs have emerged as important players in cancer progression. METHODS: Oct4 chromatin-immunoprecipitation (ChIP)-sequencing and several lncRNA databases with literature annotation were integrated to identify Oct4-regulated lncRNAs. Luciferase activity, qRT-PCR and ChIP-PCR assays were conducted to examine transcription regulation of lncRNAs by Oct4...
June 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28614298/erf-mutations-reveal-a-balance-of-ets-factors-controlling-prostate-oncogenesis
#17
Rohit Bose, Wouter R Karthaus, Joshua Armenia, Wassim Abida, Phillip J Iaquinta, Zeda Zhang, John Wongvipat, Elizabeth V Wasmuth, Neel Shah, Patrick S Sullivan, Michael G Doran, Ping Wang, Anna Patruno, Yilin Zhao, Deyou Zheng, Nikolaus Schultz, Charles L Sawyers
Half of all prostate cancers are caused by the TMPRSS2-ERG gene-fusion, which enables androgens to drive expression of the normally silent E26 transformation-specific (ETS) transcription factor ERG in prostate cells. Recent genomic landscape studies of such cancers have reported recurrent point mutations and focal deletions of another ETS member, the ETS2 repressor factor ERF. Here we show these ERF mutations cause decreased protein stability and mostly occur in tumours without ERG upregulation. ERF loss recapitulates the morphological and phenotypic features of ERG gain in normal mouse prostate cells, including expansion of the androgen receptor transcriptional repertoire, and ERF has tumour suppressor activity in the same genetic background of Pten loss that yields oncogenic activity by ERG...
June 14, 2017: Nature
https://www.readbyqxmd.com/read/28612716/-molecular-oncogenesis-of-lymphomas-role-of-the-setd2-gene-in-intestinal-t-cell-lymphomas
#18
David Vallois, Annalisa Roberti, Bettina Bisig, Philippe Gaulard, Laurence de Leval
No abstract text is available yet for this article.
May 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28610953/a-thirty-year-quest-for-a-role-of-r-ras-in-cancer-from-an-oncogene-to-a-multitasking-gtpase
#19
Wai Nam Liu, Mingfei Yan, Andrew M Chan
Since the identification of R-Ras, which is the first Ras-related GTPase isolated based on sequence similarity to the classical RAS oncogene, more than 160 members of the Ras superfamily of GTPases have been identified and classified into the Ras, Rho, Rap, Rab, Ran, Arf, Rheb, RGK, Rad, Rit, and Miro subfamilies. R-Ras belongs to the Ras subfamily of small G-proteins, which are frequently implicated in cell growth and differentiation. Although the roles of R-Ras in cellular transformation and integrin-mediated cell adhesion have been extensively studied, the physiological function of this enigmatic G-protein was only revealed when a mouse strain deficient in R-Ras was generated...
June 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28610401/oncogenesis-of-thyroid-cancer
#20
Enas Younis
Thyroid neoplasms encompass a variety of lesions that range from benign adenomas to malignancies. These latter can be well-differentiated, poorly differentiated or undifferentiated (anaplastic) carcinomas. More than 95% of thyroid cancers are derived from thyroid follicular cells, while 2-3% (medullary thyroid cancers, MTC) originate from calcitonin producing C-cells. Over the last decade, investigators have developed a clearer understanding of genetic alterations underlying thyroid carcinogenesis. A number of point mutations and translocations are involved, not only in its tumorigenesis, but also as have potential use as diagnostic and prognostic indicators and therapeutic targets...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
keyword
keyword
79150
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"