Latar Belakang: Gen E-cadherin CDH1 berperan dalam komunikasi sel untuk memelihara hubungan antar sel. Kehilangan fungsi dari gen CDH1 dapat mempengaruhi perkembangan kanker. Polimorfisme genetik CDH1 -160C>A terdeteksi memiliki hubungan dengan penyakit kanker kepala leher KKL. Tujuan: Mendeteksi polimorfisme genetik CDH1 -160C>A pada penderita KKL dan individu sehat populasi Indonesia. Metode: Sampel DNA tersimpan dari 50 individu sehat dan 50 penderita KKL dianalisis dengan metode PCR-RFLP menggunakan enzim restriksi HincII dan divisualisasi dengan elektroforesis. Hasil: Polimorfisme genetik CDH1 -160C>A terdeteksi pada penderita KKL sebesar 78 dan pada individu sehat sebesar 68. Simpulan: Penelitian ini menunjukkan bahwa polimorfisme genetik CDH1 -160C>A meningkatkan risiko KKL pada populasi Indonesia.

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Background: E cadherin CDH1 gene plays a role in cell communication to maintain the relationship between cells. Loss of function of CDH1 gene affects the development of cancer. CDH1 160C A polymorphisms have been detected to have a relationship with head and neck cancer HNC.

Objective: To detect CDH1 160C A polymorphisms in HNC patients and healthy subjects of Indonesian population.

Methods: Stored DNA samples of 50 healthy subjects and 50 HNC patients were analyzed by PCR RFLP using HincII restriction enzyme and were visualized by electrophoresis.

Results: Genetic polymorphisms of CDHI 160C A were detected both in HNC patients 78 and in healthy subjects 68.

Conclusion: This study suggested that CDH1 160C A polymorphisms increased HNC risk in Indonesian population.