Carcinogenesis

The Hsp90 molecular chaperone catalyses the final activa-tion step of many of themost important regulatory proteins of eukaryotic cells. The antibiotics geldanamycin and rad-icicol act as highly selective inhibitors of in vivo Hsp90 function through their ability to bindwithin the ADP/ATP binding pocket of the chaperone. Drugs based on these compounds are now being developed as anticancer agents, their administration having the potential to inactivate sim-ultaneously several of the targets critical for counteracting multistep carcinogenesis. ...

7p fptmusic 12-04-2013 42 3   Download

Naturally occurring G-rich DNA sequences that are able to form G-quad-ruplex structures appear as potential targets for anti-cancer chemotherapy, and therefore play an important role in cellular processes, such as cell aging, death and carcinogenesis.

9p vinaphone15 27-02-2013 45 3   Download

Because of the asymptomatic process of carcinogenesis, the early detection of cancers such as hepatocellular carcinoma (HCC) is very challenging. Tumor-prone transgenic mouse models of oncogenesis can provide a stable and powerful tool for the analysis of cancer initiation, and are therefore promising for the discovery of early putative biomarkers of HCC.

15p viettel02 19-02-2013 31 2   Download

MicroRNAs (miRNAs) are small, noncoding RNAs of 18–25 nucleotides that are generally believed to either block the translation or induce the deg-radation of target mRNA. miRNAs have been shown to play fundamental roles in diverse biological and pathological processes, including cell prolif-eration, differentiation, apoptosis and carcinogenesis.

7p mobifone23 21-01-2013 41 5   Download

Colon cancer is one of the most common human cancers worldwide. Owing to its aggressiveness and lethality, it is necessary to determine the mecha-nisms regulating the carcinogenesis of colon cancer. EphrinA5 has been reported to act as a putative tumor suppressor in glioma; however, little is known concerning the role of this protein in the context of colon cancer.

13p cosis54 08-12-2012 35 2   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Gene Systems Network Inferred from Expression Profiles in Hepatocellular Carcinogenesis by Graphical Gaussian Model

11p dauphong19 07-03-2012 29 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Recent insights into the role of NF-κB in ovarian carcinogenesis

3p panasonic02 15-12-2011 58 4   Download

Cuccarolo et al. Journal of Biomedical Science 2010, 17:63 http://www.jbiomedsci.com/content/17/1/63 Whether microgravity might influence tumour growth and carcinogenesis is still an open issue. It is not clear also if and how normal and transformed cells are differently solicited by microgravity. The present study was designed to verify this issue. Methods: Two normal, LB and HSC93, and two transformed, Jurkat and 1310, lymphoblast cell lines were used as representative for the two conditions.

10p toshiba23 18-11-2011 53 1   Download

Abstract Mitochondria are sub-cellular organelles that produce adenosine triphosphate (ATP) through oxidative phosphorylation (OXPHOS). As suggested over 70 years ago by Otto Warburg and recently confirmed with molecular techniques, alterations in respiratory activity and in mitochondrial DNA (mtDNA) appear to be common features of malignant cells. Somatic mtDNA mutations have been reported in many types of cancer cells, and some reports document the prevalence of inherited mitochondrial DNA polymorphisms in cancer patients.

7p toshiba23 18-11-2011 58 4   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: " Heterogeneity in multistage carcinogenesis and mixture modeling

12p toshiba17 28-10-2011 33 5   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài: Allergic inflammation does not impact chemical-induced carcinogenesis in the lungs of mice...

10p toshiba11 19-10-2011 55 4   Download

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Overexpression of cyclin D1 and cyclin E in 1,2-dimethylhydrazine dihydrochloride-induced rat colon carcinogenesis

6p hoami_266 15-09-2011 46 5   Download

Mutation cuả BRCA1, BRCA2 allele thấy trong ung thư vú, buồng trứng và prostate. Các tb có heterozygous BRCA mutations có thể mất wildtype allele, cho nên không sửa chữa được DNA, và vì thế tạo ra ung thư. Theory hiện tại về carcinogenesis cho rằng việc mất wild type allele (DNAREPAIR DEFECT) phải là một giai đoạn bắt buộc trong tiến trình ung thư. PARPs (PolyAdenosine diphosphate Ribose Polymerases) là multifunctional enzymes trong việc sửa chữa gẫy single stranded DNA. ...

5p sinhtobo111 13-04-2011 42 6   Download

Define teratogenesis, mutagenesis, and carcinogenesis. • Describe the relevance of replication, transcription, and translation to teratogenesis, mutagenesis, and carcinogenesis. • Summarize the mechanism of action for teratogenesis, mutagenesis, and carcinogenesis. • Discuss examples of known teratogens, mutagens, and carcinogens.

10p nguyenvanquan037 07-01-2011 62 2   Download