Biomarkers and chemopreventives in oral carcinogenesis and its prevention.

J Oral Maxillofac Pathol

Department of Oral Pathology, RajRajeshwari Dental College,Umarda, Udaipur, Rajasthan, India.

Published: January 2014

Squamous cell carcinoma is the predominant type of oral malignancy and is a result of oral carcinogenesis. Oral carcinogenesis is a mutifactorial and complex process related to the sequential occurrence of alterations in genetic structures, promoting inhibitory or excitatory effects of the tumor oncogenes and gene suppressors, compromising the histophysiology of the division, differentiation and cell death; and therefore, methods to prevent, detect, or treat it in the best way is constantly being searched for. Biomarkers reveal the genetic and molecular changes related to early, intermediate and late endpoints in the process of oral carcinogenesis. Thereby, they are likely to not only refine our ability to predict the biologic course of oral cancer and distinguish individuals at high and/or low risk of oral cancer development; but, also they will also reveal the genetic and molecular changes related to various endpoints of oral carcinogenesis. Chemopreventives are chemicals of natural or synthetic origin, which reduce the incidence of fatal diseases such as cancer before clinical symptoms occur. Chemopreventives are agents whose curative capacity is defined with help of biomarkers, as the later determine the effectiveness and safety of chemopreventives.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4065451PMC
http://dx.doi.org/10.4103/0973-029X.131914DOI Listing

Publication Analysis

Top Keywords

oral carcinogenesis
20
oral
8
reveal genetic
8
genetic molecular
8
molecular changes
8
oral cancer
8
carcinogenesis
5
biomarkers chemopreventives
4
chemopreventives oral
4
carcinogenesis prevention
4

Similar Publications

Quality of life and functional outcomes in patients with locally advanced rectal cancer receiving total neoadjuvant therapy versus concurrent chemoradiotherapy: An analysis of the XXX trial.

Int J Radiat Oncol Biol Phys

January 2025

State Key Laboratory of Molecular Oncology and Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, China; Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Shenzhen, China. Electronic address:

Objective: To explore differences in the effects of total neoadjuvant therapy (TNT) and preoperative concurrent chemoradiotherapy (CRT) on quality of life and functional outcomes in patients with locally advanced rectal cancer.

Methods: In the study, 591 patients with distal or middle-third, clinical primary tumor stage cT3-4 and/or regional lymph node-positive rectal cancer were randomly assigned (1:1) to receive short-term radiotherapy (25 Gy in five fractions) followed by 4 cycles of CAPOX (TNT group, n=297) or standard concurrent chemoradiotherapy (50 Gy in 25 fractions concurrently with oral capecitabine) (CRT group, n=294) before surgery. After a 6-year follow-up, the surviving patients were sent surveys, including the EORTC QLQ-C30, EORTC QLQ-CR29, and Wexner incontinence score questionnaires.

View Article and Find Full Text PDF

MircoRNAs predict and modulate responses to chemotherapy in leukemic patients.

Naunyn Schmiedebergs Arch Pharmacol

January 2025

Oral Biology Department, Faculty of Dentistry, Galala Plateau, Galala University, 15888), Attaka, Suez Governorate, Egypt.

Leukemia covers a broad category of cancer malignancies that specifically affect bone marrow and blood cells. While different kinds of leukemia have been identified, effective treatments are still lacking for most forms, and even those treatments considered effective can lead to relapses. MicroRNAs, or miRNAs, are short endogenous non-coding single-stranded RNAs that help control the epigenetics of gene expression.

View Article and Find Full Text PDF

Molecular analysis of HPV16 and HPV18 oncogenes in oral squamous cell carcinoma: Structural, transcriptomic and insights.

Oncol Lett

March 2025

Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu 600077, India.

The present study investigated the involvement of human papillomavirus (HPV)16 and HPV18 in oropharyngeal malignancies in order to understand the oncogenic mechanisms, and to identify biomarkers for early detection and treatment targets. Given the rising incidence of HPV-associated cancer, particularly in India, this holds significance in elucidating the molecular basis of these diseases. Structural validation of HPV16 and 18 oncoproteins E6 and E7 was conducted using computational tools, while gene expression profiles related to oral squamous cell carcinoma (OSCC) were analyzed to assess differential expression.

View Article and Find Full Text PDF

Alkaloids and Nitrosamines in Betel Quid: A Biochemical Exploration of Carcinogenicity.

Chem Biol Interact

January 2025

Department of Community Dental Health, Faculty of Dental Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka.

Betel quid contains two major ingredients; Areca catechu and Piper betel, often consumed with slaked lime, tobacco, certain flavouring agents, colouring agents, herbs, and spices according to personal preferences. The areca nut alkaloids (arecoline, arecaidine, guvacine, and guvacoline), and tobacco alkaloids (nicotine, nor-nicotine) undergo nitrosation during chewing in the oral cavity with the presence of nitrite and thiocyanate and endogenously. Among the nitrosation products generated areca nut-derived nitrosamine (ADNA): 3-(methylnitrosamino) Propionitrile (MNPN) and the two tobacco-specific nitrosamines (TSNAs); N'-nitrosonornicotine (NNN) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone) (NNK) are considered Group 1 human carcinogens.

View Article and Find Full Text PDF

Managing strategies of chemotherapy and radiotherapy-induced oral mucositis.

Cancer Treat Rev

January 2025

State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China. Electronic address:

Radiotherapy and chemotherapy are widely employed as primary non-surgical cancer treatments; however, their non-selective cytotoxicity often leads to adverse events such as oral mucositis (OM), particularly in head and neck cancer therapies. International guidelines provide recommendations for managing chemoradiotherapy-induced OM in various clinical contexts. Subsequently, emerging researches have introduced evidence supporting novel approaches or existing regimens for OM prevention and treatment.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!