Abstract
Apoptosis is an essential and highly conserved process for the maintenance of tissue homeostasis and involves a programmed series of events for the removal of effete, damaged, or mutated cells. Although, activation of caspases underscores the classical signaling cascade during apoptotic execution the role of caspase-independent mechanisms in apoptosis has also gained recognition. It is now well established that apoptotic execution is an inherent tumor suppressor mechanism and failure of apoptosis invariably leads to the acquisition of the transformed phenotype. Indeed, resistance to apoptosis is an essential acquired trait that facilitates the processes of tumor initiation and progression. As a matter of fact, efficient death execution could be a critical even at an earlier stage to inhibit tumor promotion. Interestingly, there is a school of thought supported by strong data that an altered redox status and intracellular milieu of cells could provide the seeding ground for tumor promotion and initiation, and at a latter stage tumor maintenance/progression, by blunting cell death signaling. These findings have not only enhanced our understanding of the processes of carcinogenesis and drug resistance but, more importantly provide novel targets for designing strategies to overcome the problem of apoptosis resistance in tumor cells. This review focuses on the pathways of apoptotic execution, and discusses the role of intracellular redox status on cell survival and death signaling in tumor cells.
Keywords: death effector domains (DED), reactive oxygen species (ROS), oligomerization, pro-oxidant state, Carcinogenesis
Current Pharmaceutical Design
Title: Pro-Oxidant Milieu Blunts Scissors: Insight into Tumor Progression, Drug Resistance, and Novel Druggable Targets
Volume: 12 Issue: 34
Author(s): Shazib Pervaiz
Affiliation:
Keywords: death effector domains (DED), reactive oxygen species (ROS), oligomerization, pro-oxidant state, Carcinogenesis
Abstract: Apoptosis is an essential and highly conserved process for the maintenance of tissue homeostasis and involves a programmed series of events for the removal of effete, damaged, or mutated cells. Although, activation of caspases underscores the classical signaling cascade during apoptotic execution the role of caspase-independent mechanisms in apoptosis has also gained recognition. It is now well established that apoptotic execution is an inherent tumor suppressor mechanism and failure of apoptosis invariably leads to the acquisition of the transformed phenotype. Indeed, resistance to apoptosis is an essential acquired trait that facilitates the processes of tumor initiation and progression. As a matter of fact, efficient death execution could be a critical even at an earlier stage to inhibit tumor promotion. Interestingly, there is a school of thought supported by strong data that an altered redox status and intracellular milieu of cells could provide the seeding ground for tumor promotion and initiation, and at a latter stage tumor maintenance/progression, by blunting cell death signaling. These findings have not only enhanced our understanding of the processes of carcinogenesis and drug resistance but, more importantly provide novel targets for designing strategies to overcome the problem of apoptosis resistance in tumor cells. This review focuses on the pathways of apoptotic execution, and discusses the role of intracellular redox status on cell survival and death signaling in tumor cells.
Export Options
About this article
Cite this article as:
Pervaiz Shazib, Pro-Oxidant Milieu Blunts Scissors: Insight into Tumor Progression, Drug Resistance, and Novel Druggable Targets, Current Pharmaceutical Design 2006; 12 (34) . https://dx.doi.org/10.2174/138161206779010503
DOI https://dx.doi.org/10.2174/138161206779010503 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
Call for Papers in Thematic Issues
"Tuberculosis Prevention, Diagnosis and Drug Discovery"
The Nobel Prize-winning discoveries of Mycobacterium tuberculosis and streptomycin have enabled an appropriate diagnosis and an effective treatment of tuberculosis (TB). Since then, many newer diagnosis methods and drugs have been saving millions of lives. Despite advances in the past, TB is still a leading cause of infectious disease mortality ...read more
Current Pharmaceutical challenges in the treatment and diagnosis of neurological dysfunctions
Neurological dysfunctions (MND, ALS, MS, PD, AD, HD, ALS, Autism, OCD etc..) present significant challenges in both diagnosis and treatment, often necessitating innovative approaches and therapeutic interventions. This thematic issue aims to explore the current pharmaceutical landscape surrounding neurological disorders, shedding light on the challenges faced by researchers, clinicians, and ...read more
Emerging and re-emerging diseases
Faced with a possible endemic situation of COVID-19, the world has experienced two important phenomena, the emergence of new infectious diseases and/or the resurgence of previously eradicated infectious diseases. Furthermore, the geographic distribution of such diseases has also undergone changes. This context, in turn, may have a strong relationship with ...read more
Melanoma and Non-Melanoma Skin Cancer Treatment: Standard of Care and Recent Advances
In this thematic issue, we aim to provide a standard of care of the diagnosis and treatment of melanoma and non-melanoma skin cancer. The editor will invite authors from different countries who will write review articles of melanoma and non-melanoma skin cancers. The Diagnosis, Staging, Surgical Treatment, Non-Surgical Treatment all ...read more
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
- Announcements
Related Articles
-
Design, Synthesis, and Transport Potential of a New Family of Nonionic Amphiphilic Dendro-calix[4]arene
Current Organic Chemistry Melatonin Attenuates Methamphetamine-Induced Neurotoxicity
Current Pharmaceutical Design In Vitro Modeling of the Blood-Brain Barrier: Simplicity Versus Complexity
Current Pharmaceutical Design Meet Our Editorial Board Member
CNS & Neurological Disorders - Drug Targets Functional Evaluation of Imatinib mesylate in Hepatocellular Carcinoma Cells
Recent Patents on Biomarkers Microdosing, Imaging Biomarkers and SPECT: A Multi-Sided Tripod to Accelerate Drug Development
Current Pharmaceutical Design Local Treatment for Lymphoid Malignancies of the Eye
Anti-Cancer Agents in Medicinal Chemistry Phosphoinositide-3-kinases as the Novel Therapeutic Targets for the Inflammatory Diseases: Current and Future Perspectives
Current Drug Targets The Role of Epigenetics in Drug Resistance in Cancer
Epigenetic Diagnosis & Therapy (Discontinued) Dependence of DPPH Radical Scavenging Activity of Dietary Flavonoid Quercetin on Reaction Environment
Mini-Reviews in Medicinal Chemistry Recent Evidence of the Regulatory Role of PPARs in Neural Stem Cells and Their Underlying Mechanisms for Neuroprotective Effects
Current Stem Cell Research & Therapy Mesenchymal stem cell therapy for inflammatory bowel diseases: promise and challenge
Current Stem Cell Research & Therapy Gene Therapy of Cancer Based on Interleukin 12
Current Gene Therapy Overview of the Structure and Function of Protein Kinases
Current Enzyme Inhibition C-glycosyl Flavone from Urginea indica Inhibits Growth and Dissemination of Ehrlich Ascites Carcinoma Cells in Mice
Anti-Cancer Agents in Medicinal Chemistry Computational Studies on Translocator Protein (TSPO) and its Ligands
Current Topics in Medicinal Chemistry Ligand Conjugated Targeted Nanotherapeutics for Treatment of Neurological Disorders
Current Pharmaceutical Design Prediction of the Ebola Virus Infection Related Human Genes Using Protein-Protein Interaction Network
Combinatorial Chemistry & High Throughput Screening Association of Posture Instability with Dopamine Drop of Nigrostriatal System and Hypometabolism of Cerebral Cortex in Parkinson’s Disease
Current Neurovascular Research Inhibitors of the Microsomal Prostaglandin E2 Synthase-1 as Alternative to Non Steroidal Anti-Inflammatory Drugs (NSAIDs) – A Critical Review
Current Medicinal Chemistry