Monitoring a 'metabolic shift' after surgical resection of oral squamous cell carcinomas by serum lactate dehydrogenase. (25th September 2015)

• Record Type: Journal Article
• Authors: Grimm, M.; Krimmel, M.; Hoefert, S.; Kraut, W.; Calgéer, B.; Biegner, T.; Teriete, P.; Munz, A.; Reinert, S.
• Is Part Of: Journal of oral pathology & medicine. Volume 45:Number 5(2016)
• Page Start: 346
• Page End: 355
• Publication Date: 2015-09-25
• Subjects: biomarker -- lactate dehydrogenase isoenzymes -- oral squamous cell carcinoma -- tumor metabolism; Dentistry -- Periodicals; Teeth -- Diseases -- Periodicals; 617
• DOI: 10.1111/jop.12374
• Languages: English
• ISSNs: 0904-2512

Abstract

Abstract : Objectives: Monitoring surgical removal of oral squamous cell carcinomas (OSCC) is being routinely performed through clinical and imaging follow‐up. We analyzed the potential use of serum lactate, lactate dehydrogenase (LDH), and LDH isoenzymes (LDH 1‐5) as biomarkers in blood for the monitoring of surgical removal of OSCC. Materials and Methods: Serum lactate, LDH, and LDH isoenzymes (LDH 1‐5) have been prospectively assessed in healthy individuals ( n = 19), patients with OSCC ( n = 34: primary OSCC, n = 32 and recurrent OSCC, n = 2) before surgery and after curative tumor resection ( n = 26). LDHA and LDHB expressions were analyzed by immunohistochemistry (IHC) in the same OSCC tumor specimen. Results: Positive LDHA tumor tissue expression measured by IHC ( n = 34/34, 100%) was significantly associated with increased serum LDH‐5 ( n = 24/34, 71%, P = 0.0258) but weak significantly associated with increased total serum LDH ( n = 23/34, 68%, P = 0.0592). Positive LDHB tumor tissue expression measured by IHC ( n = 25/34, 74%) was significantly associated with increased total serum LDH ( P = 0.0172). After surgery, serum LDH and LDH‐5 isoenzyme significantly decreased and LDH‐1 significantly increased in the aftercare. A significantly inverse correlation of LDHA with LDHB IHC scores was found ( P < 0.0001). Conclusions: The association of LDHA and LDHB measured by IHC with serum LDH indicates that analyzing this enzyme could serve as a favorable 'liquid biopsy' (non‐invasive diagnostic tool) for OSCC.