Author/Authors :
Mohajertehran, Farnaz Dental Research Center - Mashhad University of Medical Science, Iran , Ayatollahi, Hossein Cancer Molecular Pathology Research Center - Department of Hematology and Blood Bank - Faculty of Medicine - Mashhad University of Medical Sciences, Iran , Jafarian, Amir Hossein Cancer Molecular Pathology Research Center - Department of Pathology - Faculty of Medicine - Mashhad University of Medical Sciences, Iran , Khazaeni, Kamran Department of Otorhinolaryngology - Mashhad University of Medical Sciences, Iran , Soukhtanloo, Mohammad Department of Biochemistry - School of Medicine - Mashhad University of Medical Sciences, Iran , Shakeri, Mohammad-Taghi Department of Epidemiology & Biostatistics, MUMS, Mashhad,Iran , Mohtasham, Nooshin Dental Research Center - Mashhad University of Medical Science, Iran
Abstract :
Background:Head and neck squamous cell carcinoma (HNSCC) is the sixth most common malignancy that is
associated with high morbidity and mortality. Salivary lactate dehydrogenase (LDH concentration), as an
expression of cellular necrosis, may be a special marker of lesions that occur with changes in the integrity of the
oral mucosa. This study was performed to determine the accuracy of salivary LDH as a clinical marker for
HNSCC detection and to investigate the relationship between salivary LDH levels and tissue tumor detection.
Methods: The case group consisted of 44 HNSCC patients and the control group consisted of 44 healthy
subjects. The stage and grade of HNSCC were determined, and the LDH levels in collected saliva samples
were measured in all subjects. The expression of LDH in tumors and healthy tissue margins was evaluated via
immunohistochemistry.
Results:The expression of LDH in the saliva of patients with HNSCC is significantly higher than that in the
saliva of the healthy control group. The expression of salivary LDH in patients with oral squamous cell
carcinoma (OSCC) is significantly higher than that in the other patients and healthy individuals in the control
group. The levels of salivary LDH in patients with SCC of the tongue and lower oral cavity were significantly
higher than those in other patients affected with SCC in other parts of the head and neck (P<0.01).
Conclusions: As this enzyme increases simultaneously in both tumoral tissues and saliva, it can serve as a
useful diagnostic marker for the early diagnosis and prediction of HNSCC
Keywords :
Biomarker , Early diagnosis , Head and neck squamous cell carcinoma (HNSCC) , Lactate dehydrogenase (LDH) , Saliva