MicroRNA in human saliva may help diagnose oral cancerAugust 26, 2009PHILADELPHIA - Researchers continue to add to the diagnostic alphabet of saliva by identifying the presence of at least 50 microRNAs that could aid in the detection of oral cancer, according to a report in Clinical Cancer Research, a journal of the American Association for Cancer Research. "It is a Holy Grail of cancer detection to be able to measure the presence of a cancer without a biopsy, so it is very appealing to think that we could detect a cancer-specific marker in a patient's saliva," said Jennifer Grandis, M.D., professor of otolaryngology and pharmacology at the University of Pittsburgh School of Medicine and Cancer Institute and a senior editor of Clinical Cancer Research. MicroRNAs are molecules produced in cells that have the ability to simultaneously control activity and assess the behavior of multiple genes. They are a thriving research topic right now, and researchers believe they could hold the key to early detection of cancer. The emergence of a microRNA profile in saliva represents a major step forward in the early detection of oral cancer. "The oral cavity is a mirror to systemic health, and many diseases that develop in other parts of the body have an oral manifestation," said David T. Wong, D.M.D., D.M.Sc., Felix and Mildred Yip Endowed Professor at the University of California, Los Angeles School of Dentistry. Wong and colleagues measured microRNA levels in the saliva of 50 patients with oral squamous cell carcinoma and 50 healthy control patients. They detected approximately 50 microRNAs. Two specific microRNAs, miR-125a and miR-200a, were present at significantly lower levels in patients with oral cancer than in the healthier controls. Wong said that the findings of this study would have to be confirmed by a larger and longer analysis. American Association for Cancer Research |
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| Related Oral Cancer Current Events and Oral Cancer News Articles Does green tea prevent cancer? Evidence continues to brew, but questions remain Although scientists are reluctant to officially endorse green tea as a cancer prevention method, evidence continues to grow about its protective effects, including results of a new study published in Cancer Prevention Research, a journal of the American Association for Cancer Research, which suggests some reduction in oral cancer. Green tea shows promise as chemoprevention agent for oral cancer, M. D. Anderson study finds Green tea extract has shown promise as cancer prevention agent for oral cancer in patients with a pre-malignant condition known as oral leukoplakia, according to researchers at The University of Texas M. D. Anderson Cancer Center. Dental researchers confirm microRNAs as biomarkers for oral cancer detection A new study published by researchers at the UCLA School of Dentistry substantiates the effectiveness of measuring the microRNAs present in saliva to detect oral squamous cell carcinoma. Smokeless tobacco safer than smoking Smokeless tobacco products, as used in Europe and North America, do not appear to increase cancer risk. Compliance and cost: Bitter pills to swallow in the age of oral chemotherapy Though the growing shift toward oral chemotherapy agents offers cancer patients greater freedom and independence during their treatment, physicians say use of the new medications also poses more chances for patients to skip doses, miss prescription refills, and take their drugs in a dangerous way. Research yields potential target for cancer, wound healing and fibrosis Research conducted by Allison Berrier, PhD, Assistant Professor of Oral and Craniofacial Biology at the LSU Health Sciences Center New Orleans School of Dentistry, and colleagues, provides insights that may help scientists design novel approaches to control wound healing and fight diseases such as cancer and fibrosis. Human Papillomavirus (HPV) Lesion Identified at the Dentist Human papillomavirus (HPV) is a group of viruses that includes more than 100 different strains or types and is the most common sexually transmitted virus. LSUHSC public health contributes to estimate of HPV-related cancers Professor Vivien Chen, PhD,. Associate Professor Xiao Cheng Wu, MD, PhD and Assistant Professor Edward Peters, DMD, SM, ScD, at LSU Health Sciences Center New Orleans School of Public Health contributed five papers to the largest most comprehensive assessment of the burden of human papillomavirus (HPV)-associated cancers in the United States to date. Saliva proteins could help detection of oral cancer Clinicians could detect oral squamous cell carcinoma, a form of oral cancer, using a simple test that detects proteins in saliva, according to a report in the October 1, 2008, issue of Clinical Cancer Research, a journal of the American Association for Cancer Research. Blue light used to harden tooth fillings stunts tumor growth A blue curing light used to harden dental fillings also may stunt tumor growth, Medical College of Georgia researchers say. More Oral Cancer Current Events and Oral Cancer News Articles |
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