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- Klinische proef NCT00155181
Molecular Mechanism of Nasopharyngeal Carcinoma
the Garduate Institute of Microbiology in National Taiwan University
Studie Overzicht
Toestand
Conditie
Gedetailleerde beschrijving
Nasopharyngeal carcinoma (NPC), a human malignancy derived from the nasopharyngeal epithelial cells, is occurring highly frequently in Taiwan. Of note, the average ages of NPC individuals are usually ten years younger than those of patients with other head and neck cancers. Clinically, this early onset and high incidence of metastasis in NPC may contribute to its poor prognosis. Fortunately, NPC is usually radio-and chemo-therapy sensitive during the early stage. So, the more we understand NPC pathogenesis, the more efficient detection methods would be developed for NPC early diagnosis and prognosis.
Four unique characteristics have been reported for NPC: geographic preference, heavy infiltration of lymphocytes, high incidence of metastasis and association with Epstein-Barr virus (EBV). According to our hypothesis that both cellular changes and viral factors are crucial for NPC development, four major long-term study goals have been carried out in our lab: (1) identification and characterization of the cellular and viral factors that are involved in NPC formation, (2) elucidation of potencies of these molecules as clinical diagnosis and prognosis markers of NPC, (3) investigation of the molecular and biological linkage between EBV infection and NPC development and (4) establishment of a drug-screening system for NPC chemotherapy.
Based on our assumption that both cellular genes and viral factors are involved in NPC carcinogenesis, the following genes are chosen as the major study targets in this five-year grant. Firstly, to asses the alteration of cellular gene expression, we choose three cytokine genes 【interleukin (IL)-1, IL-7 and IL-13】, three inhibitors of apoptosis proteins (IAP) genes (survivin, HIAP-1, and HIAP-2), two specific cellular genes (osteoblast-specific factor-2 and polymeric immunoglobulin receptor) and one tumor suppressor gene (tumor susceptibility gene TSG101) in our proposal. All these genes exhibit special expression profiles in NPC biopsies in our preliminary study. So, the regulation and effect of these genes in epithelial cells would be the study focus. Secondly, two EBV viral genes, Zta and LMP2A, the former encoded immediately early lytic product and the later encoded latent membrane protein, are selected for this study. In our previous grant, we found that Zta can up-regulate TKT (trk-related tyrosine kinase) and matrix metalloproteinases (MMP)-1 which is a down-stream effector of TKT. Therefore we will extend the study on how Zta and LMP2A regulate and influence anti-apoptotic network and metastasis progression. Based on our preliminary data, this proposal is highly approachable and the results may provide valuable information for NPC diagnosis, prognosis and treatment.
Studietype
Inschrijving
Contacten en locaties
Studiecontact
- Naam: Ching-Hwa Tsai, Ph D
- Telefoonnummer: 8298 886-2-23123456
- E-mail: chtsai@ha.mc.ntu.edu.tw
Studie Locaties
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Taipei, Taiwan, 100
- Werving
- National Taiwan University College of Medicine
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Contact:
- Te-Huei Yeh, MD, Ph D
- Telefoonnummer: 5223 886-2-23123456
- E-mail: yth@ha.mc.ntu.edu.tw
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Hoofdonderzoeker:
- Ching-Hwa Tsai, pH.D
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Deelname Criteria
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Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- diagnosis of nasopharyngeal carcinoma
Exclusion Criteria:
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Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Medewerkers en onderzoekers
Medewerkers
Onderzoekers
- Studie stoel: Ching-Hwa Tsai, Ph D, National Taiwan University College of Medicine
Studie record data
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Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
- Neoplasmata per histologisch type
- Neoplasmata
- Neoplasmata per site
- Neoplasmata, glandulair en epitheel
- Faryngeale neoplasmata
- Otorinolaryngologische neoplasmata
- Hoofd- en nekneoplasmata
- Nasofaryngeale ziekten
- Faryngeale ziekten
- Stomatognatische ziekten
- KNO-ziekten
- Nasofaryngeale neoplasmata
- Carcinoom
- Nasofarynxcarcinoom
Andere studie-ID-nummers
- 9361700387
- NHRI-EX94-9419BI
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