• Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login
Export selected to
Endnote
Reference Manager
Procite
Medlars Format
RefWorks Format
BibTex Format
   Table of Contents - Current issue
Coverpage
April-June 2019
Volume 5 | Issue 2
Page Nos. 25-46

Online since Friday, June 28, 2019

Accessed 1,511 times.

PDF access policy
Journal allows immediate open access to content in HTML + PDF
View as eBookView issue as eBook
Access StatisticsIssue statistics
RSS FeedRSS
Hide all abstracts  Show selected abstracts  Export selected to  Add to my list
REVIEWS  

Phosphorylation of BRCA1-associated protein 1 as an important mechanism in the evasion of tumorigenesis: A perspective p. 25
Guru Prasad Sharma, Anjali Geethadevi, Jyotsna Mishra, G Anupa, Kapilesh Jadhav, KS Vikramdeo, Deepak Parashar
DOI:10.4103/ctm.ctm_1_19  
The human BRCA1-associated protein 1 (BAP1), a deubiquitinase, is a tumor suppressor protein known to be associated with a multicellular complex containing tumor suppressors, thereby coregulating various cellular processes such as DNA repair, gene transcription, cell cycle progression, and phosphorylation. Mutation and inactivation of BAP1 have long been reported in many malignancies and has been deployed in the prognosis of few malignancies. However, the mechanism of BAP1 regulation and its therapeutic significance have not been thoroughly explored. In addition to deubiquitination, BAP1 also responds to DNA damage and can induce cell death via apoptosis, necrosis, and ferroptosis. The mechanistic insight of BAP1-regulation is a complex subject and its thorough understanding would address the enigma of BAP1 mutation in malignancy. There are various tiers of regulation, though still needs to be explored, of BAP1 activity such as epigenetic regulation and posttranslational modification (PTM). Of various PTMs, posttranslational phosphorylation (PTP) has been poorly understood and meekly addressed in the literature. Here, we aim to provide an updated and integrated understanding of the PTP-mediated BAP1 regulation and its plausible role in cancer prevention. Exploring the functional consequence of BAP1 phosphorylation in its deubiquitinating potential might establish a new paradigm for its regulation in maintaining cellular homeostasis and cancer prevention.
[ABSTRACT]  [HTML Full text]  [PDF]  [Mobile Full text]  [EPub]  [Sword Plugin for Repository]Beta

Progress in diagnosis and treatment of mixed adenoneuroendocrine carcinoma of biliary-pancreatic system p. 33
Ge Zengzheng, Huang-Sheng Ling, Ming-Feng Li, Xu Xiaoyan, Yao Kai, Xu Tongzhen, Ge Zengyu, Li Zhou
DOI:10.4103/ctm.ctm_5_19  
With the application of many kinds of advanced examination techniques, the detectable rate of mixed adenoneuroendocrine carcinoma (MANEC) of the biliary-pancreatic system has increased substantially. This kind of tumor with high degree of malignancy is rarely seen. Thus, the clinical studies are difficult to carry out, most of which are just case reports. Besides, its treatments do not work effectively, albeit the diagnosis and management have changed tremendously. To deepen the understanding of MANEC of biliary-pancreatic system, this article is an overview making a generalization and summarization of the related literature as well as reviewing the main diagnosis and therapies of these rare tumors. In addition, it lays the foundation for clinical diagnosis and treatment in the future.
[ABSTRACT]  [HTML Full text]  [PDF]  [Mobile Full text]  [EPub]  [Sword Plugin for Repository]Beta

Surface-Enhanced Raman Spectroscopy to study the biological activity of anticancer agent p. 37
Guoyu Qiu, Xiaohui Xu, Lupeng Ji, Ruiping Ma, Zilong Dang, Huan Yang
DOI:10.4103/ctm.ctm_18_19  
Surface-Enhanced Raman Spectroscopy (SERS) is a sensitive and selective spectroscopic technique for the detection and characterization of analytes, which are adsorbed on suitable metal surfaces. SERS as a strategy has been widely used in detecting target molecules, and the screening of drug activity is mainly to study the biological effects of drug combined with target, so a study on biological activity of anticancer drug based on SERS is a concern to some researchers. SERS combines the advantages of positive identification of molecules in situ, stand-alone detection, well-established instrumentation with high sensitivity, and its noninvasive detection. In this paper, we review on the application of SERS in studying anticancer agent from three aspects, such as studying the effects of anticancer agent on cancer cells, detection of anticancer agent in human plasma, and testing the interaction between anticancer agent and DNA or protein.
[ABSTRACT]  [HTML Full text]  [PDF]  [Mobile Full text]  [EPub]  [Sword Plugin for Repository]Beta
SHORT COMMUNICATION Top

Alzheimer's disease susceptibility genes in malignant breast tumors p. 42
Steven Lehrer, Peter H Rheinstein
DOI:10.4103/2395-3977.261826  
Background: Cognitive problems have been reported in breast cancer patients after chemotherapy. A small group of older breast cancer survivors carrying the APOE4 gene, receiving chemotherapy, was at increased risk of long-term impairment of brain function. We have analyzed the expression of APOE and the next 23-ranked Alzheimer's disease (AD) susceptibility genes in malignant breast tumors. We wished to determine if these 24 genes might be related to breast cancer. Methods: To identify the most important AD susceptibility genes, we consulted the ALZGENE database (http:// www.alzgene.org/) which displays this information and regularly updates it. To analyze the effect of AD susceptibility genes on breast cancer, we used The Cancer Genome Atlas (TCGA). We analyzed TCGA data with cBioPortal for Cancer Genomics. cBioPortal provides visualization, analysis, and download of large-scale cancer genomic data sets. cBioPortal can analyze APOE in breast tumors but cannot distinguish its three alleles: E2, E3, and E4. Results: About 1.6% of the tumors had APOE amplification (copy number alteration). Two percent of the tumors had CD33 alterations. None of the tumors had APOE mutations. Two tumors had CD33 missense mutations of unknown significance. Expression heatmap shows that over- or underexpression of APOE and CD33 was correlated in most of the tumors. APOE alteration significantly co-occurred with CD33 and CD2AP. Conclusion: Alterations of certain cancer genes tend to co-occur, indicating that they may work in tandem to drive tumor formation and development. This may be the case with the co-occurring alterations of APOE, CD33, and CD2AP. It would be important to know which APOE allele(s) were co-occurrent with CD33 and CD2AP and whether co-occurrence in the tumor predicted increased risk of AD. This information could help in identification of specific risk factors for breast cancer-related cognitive decline in older women, which has important implications for oncology care.
[ABSTRACT]  [HTML Full text]  [PDF]  [Mobile Full text]  [EPub]  [Sword Plugin for Repository]Beta

Subscribe this journal
Submit articles
Most popular articles
Joiu us as a reviewer
Email alerts
Recommend this journal