scholarly journals Surmounting Chemotherapy and Radioresistance in Chondrosarcoma: Molecular Mechanisms and Therapeutic Targets

Sarcoma ◽  
2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Anne C. Onishi ◽  
Alexander M. Hincker ◽  
Francis Y. Lee
Keyword(s):  
Surgical Resection ◽  
Successful Treatment ◽  
Radiation Resistance ◽  
Molecular Mechanisms ◽  
Therapeutic Targets ◽  
Molecular Targets ◽  
Curative Treatment ◽  
Primary Malignancy ◽  
Future Direction ◽  
New Molecular Targets

Chondrosarcoma, a primary malignancy of bone, has eluded successful treatment with modern chemotherapeutic and radiation regimens. To date, surgical resection of these tumors remains the only curative treatment offered to patients with this diagnosis. Understanding and exploring the nature of chemotherapy and radiation resistance in chondrosarcoma could lead to new molecular targets and more directed therapy for these notoriously difficult-to-treat tumors. Here we review the most current hypotheses regarding the molecular mechanisms mediating chemotherapy and radiation resistance and the future direction of chondrosarcoma therapy research.

scholarly journals The effect of certain autophagy proteins (LC3b and Beclin) and apotosis (Casp8 and Bcl-2) on the clinical course of ovarian cancer

2021 ◽  
Vol 67 (4) ◽  
pp. 474-479
Author(s):  
Aliia Gafiullina ◽  
Zinaida Afanaseva ◽  
Karim Garipov ◽  
Zinaida Abramova
Keyword(s):  
Systematic Review ◽  
Ovarian Cancer ◽  
Drug Therapy ◽  
Molecular Mechanisms ◽  
Clinical Course ◽  
Molecular Targets ◽  
Cochrane Library ◽  
Search For Information ◽  
New Molecular Targets

Treatment of ovarian cancer remains an important problem in practical oncology due to the increase in morbidity and mortality from this disease. The aim is to summarize the available literature data on the molecular mechanisms of the participation of various proteins of autophagy and apoptosis in the development, progression, formation of chemoresistance and in the assessment of the prognosis of epithelial ovarian cancer. Materials and methods. The search for information was carried out in the materials of the databases Medline, Cochrane Library, Elibrary, NCBI, RSCI, instructions for the medical use of drugs, using keywords in the title. Used 39 articles to write this systematic review. Results. The review examines the molecular mechanisms of autophagy and apoptosis involved in the progression of ovarian cancer and in the formation of resistance to anticancer drug therapy. It has been shown that modulation of autophagy and apoptosis can change the effectiveness of drug treatment for this tumor. Conclusion. Considering the literature data on the ambiguous role of autophagy and apoptosis in the course of ovarian cancer and the formation of resistance to antitumor treatment, further study is required and the search for new molecular targets for their modulation is required.

scholarly journals The Mechanism of Warburg Effect-Induced Chemoresistance in Cancer

2021 ◽  
Vol 11 ◽  
Author(s):  
Chang Liu ◽  
Ying Jin ◽  
Zhimin Fan
Keyword(s):  
Overall Survival ◽  
Tumor Microenvironment ◽  
Cancer Therapy ◽  
Cancer Patients ◽  
Warburg Effect ◽  
Molecular Mechanisms ◽  
Molecular Targets ◽  
Glycolysis Process ◽  
New Molecular Targets ◽  
The Warburg Effect

Although chemotherapy can improve the overall survival and prognosis of cancer patients, chemoresistance remains an obstacle due to the diversity, heterogeneity, and adaptability to environmental alters in clinic. To determine more possibilities for cancer therapy, recent studies have begun to explore changes in the metabolism, especially glycolysis. The Warburg effect is a hallmark of cancer that refers to the preference of cancer cells to metabolize glucose anaerobically rather than aerobically, even under normoxia, which contributes to chemoresistance. However, the association between glycolysis and chemoresistance and molecular mechanisms of glycolysis-induced chemoresistance remains unclear. This review describes the mechanism of glycolysis-induced chemoresistance from the aspects of glycolysis process, signaling pathways, tumor microenvironment, and their interactions. The understanding of how glycolysis induces chemoresistance may provide new molecular targets and concepts for cancer therapy.

scholarly journals Estrogen Receptors and Melanoma: A Review

Cells ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1463 ◽  
Author(s):  
Emi Dika ◽  
Annalisa Patrizi ◽  
Martina Lambertini ◽  
Nicholas Manuelpillai ◽  
Michelangelo Fiorentino ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Estrogen Receptors ◽  
Molecular Mechanisms ◽  
Steroid Hormone ◽  
Molecular Targets ◽  
Epidemiological Studies ◽  
Hormone Sensitive ◽  
The Relationship ◽  
Great Complexity ◽  
New Molecular Targets

In the last three decades cutaneous melanoma has been widely investigated as a steroid hormone-sensitive cancer. Following this hypothesis, many epidemiological studies have investigated the relationship between estrogens and melanoma. No evidence to date has supported this association due to the great complexity of genetic, external and environmental factors underlying the development of this cancer. Molecular mechanisms through which estrogen and their receptor exert a role in melanoma genesis are still under investigation with new studies increasingly focusing on the discovery of new molecular targets for therapeutic treatments.

Inflammageing in the cardiovascular system: mechanisms, emerging targets, and novel therapeutic strategies

2020 ◽  
Vol 134 (17) ◽  
pp. 2243-2262
Author(s):  
Danlin Liu ◽  
Gavin Richardson ◽  
Fehmi M. Benli ◽  
Catherine Park ◽  
João V. de Souza ◽  
...  
Keyword(s):  
Cardiovascular Diseases ◽  
Cardiovascular System ◽  
Nlrp3 Inflammasome ◽  
Molecular Mechanisms ◽  
Molecular Targets ◽  
Therapeutic Interventions ◽  
Low Grade ◽  
Cardiovascular Research ◽  
Inflammatory Processes ◽  
Ach Receptors

Abstract In the elderly population, pathological inflammation has been associated with ageing-associated diseases. The term ‘inflammageing’, which was used for the first time by Franceschi and co-workers in 2000, is associated with the chronic, low-grade, subclinical inflammatory processes coupled to biological ageing. The source of these inflammatory processes is debated. The senescence-associated secretory phenotype (SASP) has been proposed as the main origin of inflammageing. The SASP is characterised by the release of inflammatory cytokines, elevated activation of the NLRP3 inflammasome, altered regulation of acetylcholine (ACh) nicotinic receptors, and abnormal NAD+ metabolism. Therefore, SASP may be ‘druggable’ by small molecule therapeutics targeting those emerging molecular targets. It has been shown that inflammageing is a hallmark of various cardiovascular diseases, including atherosclerosis, hypertension, and adverse cardiac remodelling. Therefore, the pathomechanism involving SASP activation via the NLRP3 inflammasome; modulation of NLRP3 via α7 nicotinic ACh receptors; and modulation by senolytics targeting other proteins have gained a lot of interest within cardiovascular research and drug development communities. In this review, which offers a unique view from both clinical and preclinical target-based drug discovery perspectives, we have focused on cardiovascular inflammageing and its molecular mechanisms. We have outlined the mechanistic links between inflammageing, SASP, interleukin (IL)-1β, NLRP3 inflammasome, nicotinic ACh receptors, and molecular targets of senolytic drugs in the context of cardiovascular diseases. We have addressed the ‘druggability’ of NLRP3 and nicotinic α7 receptors by small molecules, as these proteins represent novel and exciting targets for therapeutic interventions targeting inflammageing in the cardiovascular system and beyond.

Understanding Molecular Process and Chemotherapeutics for the Management of Breast Cancer.

2020 ◽  
Vol 14 ◽  
Author(s):  
Abhishek Kumar ◽  
Neeraj Masand ◽  
Vaishali M. Patil
Keyword(s):  
Breast Cancer ◽  
Molecular Mechanisms ◽  
Molecular Targets ◽  
Molecular Classification ◽  
Neoplastic Disease ◽  
Molecular Process ◽  
The Past ◽  
Anti Cancer ◽  
Molecular Etiology ◽  
Near Future

Abstract: Breast cancer is the most common and highly heterogeneous neoplastic disease comprised of several subtypes with distinct molecular etiology and clinical behaviours. The mortality observed over the past few decades and the failure in eradicating the disease is due to the lack of specific etiology, molecular mechanisms involved in initiation and progression of breast cancer. Understanding of the molecular classes of breast cancer may also lead to new biological insights and eventually to better therapies. The promising therapeutic targets and novel anti-cancer approaches emerging from these molecular targets that could be applied clinically in the near future are being highlighted. In addition, this review discusses some of the details of current molecular classification and available chemotherapeutics

Toxicology

2017 ◽  
Author(s):  
Robert Laumbach ◽  
Michael Gochfeld
Keyword(s):  
Molecular Mechanisms ◽  
Molecular Targets ◽  
Toxicity Testing ◽  
The Body ◽  
Toxic Substances ◽  
Basic Principles ◽  
Practical Applications ◽  
Mechanisms Of Toxicity ◽  
Body Distribution ◽  
Threshold Doses

This chapter describes the basic principles of toxicology and their application to occupational and environmental health. Topics covered include pathways that toxic substances may take from sources in the environment to molecular targets in the cells of the body where toxic effects occur. These pathways include routes of exposure, absorption into the body, distribution to organs and tissues, metabolism, storage, and excretion. The various types of toxicological endpoints are discussed, along with the concepts of dose-response relationships, threshold doses, and the basis of interindividual differences and interspecies differences in response to exposure to toxic substances. The diversity of cellular and molecular mechanisms of toxicity, including enzyme induction and inhibition, oxidative stress, mutagenesis, carcinogenesis, and teratogenesis, are discussed and the chapter concludes with examples of practical applications in clinical evaluation and in toxicity testing.

scholarly journals Helping Eve Overcome ADAM: G-Quadruplexes in the ADAM-15 Promoter as New Molecular Targets for Breast Cancer Therapeutics

Molecules ◽  
2013 ◽  
Vol 18 (12) ◽  
pp. 15019-15034 ◽  
Author(s):  
Robert Brown ◽  
Vanessa Gaerig ◽  
Taesha Simmons ◽  
Tracy Brooks
Keyword(s):  
Breast Cancer ◽  
Molecular Targets ◽  
Cancer Therapeutics ◽  
New Molecular Targets

MO262THE SINGLE-CELL TRANSCRIPTOMICS OF HUMAN IGA NEPHROPATHY

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Yong Zhong ◽  
Xiangcheng Xiao
Keyword(s):  
Gene Expression ◽  
Single Cell ◽  
Signaling Pathways ◽  
Iga Nephropathy ◽  
Molecular Mechanisms ◽  
Mesangial Cells ◽  
Therapeutic Targets ◽  
Cell Types ◽  
Receptor Crosstalk ◽  
Overt Proteinuria

Abstract Background and Aims The exact molecular mechanisms underlying IgA nephropathy (IgAN) remains incompletely defined. Therefore, it is necessary to further elucidate the mechanism of IgA nephropathy and find novel therapeutic targets. Method Single-cell RNA sequencing (scRNA-seq) was applied to kidney biopsies from 4 IgAN and 1 control subjects to define the transcriptomic landscape at the single-cell resolution. Unsupervised clustering analysis of kidney specimens was used to identify distinct cell clusters. Differentially expressed genes and potential signaling pathways involved in IgAN were also identified. Results Our analysis identified 14 cell subsets in kidney biopsies from IgAN patients, and analyzed changing gene expression in distinct renal cell types. We found increased mesangial expression of several novel genes including MALAT1, GADD45B, SOX4 and EDIL3, which were related to proliferation and matrix accumulation and have not been reported in IgAN previously. The overexpressed genes in tubule cells of IgAN were mainly enriched in inflammatory pathways including TNF signaling, IL-17 signaling and NOD-like receptor signaling. Moreover, the receptor-ligand crosstalk analysis revealed potential interactions between mesangial cells and other cells in IgAN. Specifically, IgAN with overt proteinuria displayed elevated genes participating in several signaling pathways which may be involved in pathogenesis of progression of IgAN. Conclusion The comprehensive analysis of kidney biopsy specimen demonstrated different gene expression profile, potential pathologic ligand-receptor crosstalk, signaling pathways in human IgAN. These results offer new insight into pathogenesis and identify new therapeutic targets for patients with IgA nephropathy.

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