Dataset Information

Analysis of Saliva Gene Expression during Head and Neck Cancer Radiotherapy: A Pilot Study.

ABSTRACT: Saliva, a biological fluid, is a promising candidate for novel approaches to prognosis, clinical diagnosis, monitoring and management of patients with both oral and systemic diseases. However, to date, saliva has not been widely investigated as a biomarker for radiation exposure. Since white blood cells are also present in saliva, it should theoretically be possible to investigate the transcriptional biomarkers of radiation exposure classically studied in whole blood. Therefore, we collected whole blood and saliva samples from eight head and neck cancer patients before the start of radiation treatment, at mid-treatment and after treatment. We then used a panel of five genes: BAX, BBC3, CDKN1A, DDB2 and MDM2, designated for assessing radiation dose in whole blood to evaluate gene expression changes that can occur during radiotherapy. The results revealed that the expression of the five genes did not change in whole blood. However, in saliva, CDKN1A and DDB2 were significantly overexpressed at the end, compared to the start, of radiotherapy, and MDM2 was significantly underexpressed between mid-treatment and at the end of treatment. Interestingly, CDKN1A and DDB2 expressions also showed an increasing monotonic relationship with total radiation dose received during radiotherapy. To our knowledge, these results show for the first time the ability to detect gene expression changes in saliva after head and neck cancer radiotherapy, and pave the way for further promising studies validating saliva as a minimally invasive means of biofluid collection to directly measure radiation dose escalation during treatment.

SUBMITTER: Lacombe J

PROVIDER: S-EPMC5552048 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Analysis of Saliva Gene Expression during Head and Neck Cancer Radiotherapy: A Pilot Study.

Lacombe Jerome J Brooks Carla C Hu Chengcheng C Menashi Emmanuel E Korn Ronald R Yang Farley F Zenhausern Frederic F

Radiation research 20170515 1

Saliva, a biological fluid, is a promising candidate for novel approaches to prognosis, clinical diagnosis, monitoring and management of patients with both oral and systemic diseases. However, to date, saliva has not been widely investigated as a biomarker for radiation exposure. Since white blood cells are also present in saliva, it should theoretically be possible to investigate the transcriptional biomarkers of radiation exposure classically studied in whole blood. Therefore, we collected who ...[more]

PMID: 28504589

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Project description:BACKGROUND:Cancer cachexia is a prevalent symptom of head and neck neoplasms. The reduction in skeletal muscle mass is one of the main characteristics which can lead to poor physical functioning. The purposes of this pilot randomized controlled trial were to determine the feasibility of progressive resistance training in cachectic head and neck cancer patients during radiotherapy and to explore possible risks and benefits. METHODS:Twenty cachectic participants with head and neck cancer receiving radiation were randomized to obtain either a machine supported progressive resistance training (n =?10) or usual care (n?=?10). The training took place 3 times weekly for 30 min. Intervention included 3 exercises for major muscle groups with 8-12 repetition maximum for 3 sets each. Bioelectrical impedance analysis, hand-held dynamometry, Six-Minute Walk Test and standardized questionnaires for fatigue and quality of life were used for evaluating outcomes at baseline before radiotherapy (t1), after 7 weeks of radiotherapy (t2) and 8 weeks after the end of radiotherapy (t3). RESULTS:All participants (n =?20) completed the trial. No serious adverse events occurred. At the initial assessment the cachectic patients had already lost 7.1?±?5.2% of their body weight. General fatigue (score 10.7?±?3.3) and reduced quality of life (score 71.3?±?20.6) were prevalent in cachectic head and neck cancer patients even before radiotherapy. An average improvement of weight loading for leg press (+?19.0%), chest press (+?29.8%) and latissimus pull-down (+?22.8%) was possible in the intervention group. Participants had at least 13 training sessions. The outcome measures showed nonsignificant changes at t2 and t3, but a trend for a better course of general fatigue and quality of life at t2 in the intervention group. CONCLUSIONS:Despite advanced tumor stage and burdensome treatment the intervention adherence is excellent. Progressive resistance training in cachectic head and neck cancer patients during radiotherapy seems to be safe and feasible and may have beneficial effects of general fatigue and quality of life. TRIAL REGISTRATION:ClinicalTrials.gov, NCT03524755 . Registered 15 May 2018 - Retrospectively registered.

Dataset Information

Analysis of Saliva Gene Expression during Head and Neck Cancer Radiotherapy: A Pilot Study.

Publications

Analysis of Saliva Gene Expression during Head and Neck Cancer Radiotherapy: A Pilot Study.

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