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    Ekspresi Cyclooxygenase-2 pada Penderita Karsinoma Nasofaring dengan Pemberian Kemoradioterapi Konkuren

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    Date
    2014
    Author
    Nurdiansah, Firman
    Advisor(s)
    Farhat
    Asnir, Rizalina A
    Hasibuan, Mangain
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    Abstract
    Introduction: Cellular expression of COX-2 increased above normal in the early stages of carcinogenesis, and for the development and growth of invasive tumors. COX-2 overexpressed in some tumors and in its development proved to be the cause of carcinogenesis. Giving concurrent chemotherapy with radiotherapy is expected to kill cancer which cells sensitive to chemotherapy and change-resistant cancer cells to be more sensitive to radiotherapy. Objective: To determine the expression of COX-2 in patients with NPC in H. Adam Malik hospital. Method: A quasi experimental design was conducted in 25 samples at H. Adam Malik General Hospital Medan. NPC was examined with immunohistochemestry for COX-2 expression pre and post concurrent chemoradiotherapy. Result: Patients with pre concurrent chemoradiotherapy NPC most common symptom found was neck lump with 22 samples (88,0%), 21 samples (84,0%) with Hb 12-16gr%, and 14 samples (56,0%) with Karnofsky score of 70. The expression of COX-2 positive found highest in the group with tumor size T3 as many as 5 samples (29,5%), 9 samples (52,9%) in group with N3, and 11 samples (64,7%) in group with clinical stage IV, whereas patients with post concurrent chemoradiotherapy NPC most common symptom found was neck lump with 16 samples (64,0%), 12 samples (48,0%) with Hb 12-16gr%, and 17 samples (68,0%) with Karnofsky score of ≥ 80. The expression of COX-2 positive found highest in the group with tumor size T1 as many as 6 samples (50,0%), 5 samples (41,7%) in group with N0, and 4 samples (33,3%) in group with clinical stage II. With Wilcoxon Sign Rank test, there was no significant difference between the size of the primary tumor, lymph nodes, clinical stage pre and post concurrent chemoradiotherapy with COX-2 expression (p > 0,05).
     
    Pendahuluan: Ekspresi seluler COX-2 meningkat di atas normal pada stadium awal karsinogenesis, dan selama perkembangan serta pertumbuhan invasif tumor. COX-2 terekspresi pada beberapa tumor dan dalam perkembangannya membuktikan sebagai penyebab karsinogenesis. Pemberian kemoterapi bersamaan dengan radioterapi diharapkan dapat membunuh sel kanker yang sensitif terhadap kemoterapi dan mengubah sel kanker yang resisten menjadi lebih sensitif terhadap radioterapi. Tujuan: Untuk mengetahui ekspresi COX-2 pada penderita karsinoma nasofaring dengan pemberian kemoradioterapi konkuren. Metode: Penelitian ini bersifat Quasi eksperimental dengan 25 sampel dilakukan RSUP. H. Adam Malik Medan. Ekspresi COX-2 pada KNF diperiksa dengan imunohistokimia sebelum dan sesudah kemoradioterapi konkuren. Hasil Penelitian: Pada penderita KNF sebelum kemoradioterapi konkuren, gejala yang paling banyak ditemukan berupa benjolan leher sebanyak 22 sampel (88,0%), 21 sampel (84,0%) dengan kadar Hb 12-16 gr% dan 14 sampel (56,0%) dengan skor Karnofsky 70. Ekspresi COX-2 positif tertinggi terhadap ukuran tumor primer ditemukan pada kelompok T3 sebanyak 5 sampel (29,5%), 9 sampel (52,9%) pada kelompok N3 dan 11 sampel (64,7%) pada kelompok dengan stadium klinis IV, sedangkan pada penderita KNF sesudah kemoradioterapi konkuren, gejala yang paling banyak ditemukan berupa benjolan leher sebanyak 16 sampel (64,0%), 12 sampel (48,0%) dengan kadar Hb 12-16 gr% dan 17 sampel (68,0%) dengan skor Karnofsky ≥ 80. Ekspresi COX-2 positif tertinggi terhadap ukuran tumor primer ditemukan pada kelompok T1 sebanyak 6 sampel (50,0%), 5 sampel (41,7%) pada kelompok N0 dan 4 sampel (33,3%) pada kelompok dengan stadium klinis II. Dengan Wilcoxon Sign Rank test tidak ditemukan perbedaan yang bermakna antara kelompok ukuran tumor primer, kelenjar getah bening, stadium klinis sebelum kemoradioterapi dan sesudah kemoradioterapi konkuren dengan ekspresi COX-2 (p> 0,05).

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    http://repositori.usu.ac.id/handle/123456789/40114
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    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV