2002Unpublished venueRequires access

THE EXPRESSION OF bcl-2,bax PROTEIN AND p53mRNA IN LUNG CANCER

Shi Mei

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Abstract

Objective:To investigate the relationship between expression of p53mRNA and bcl 2,bax protein,and their clinicopathologic features.Methods:Expression of bcl 2,bax protein and p53mRNA in 52 cases of surgically resected primary lung cancer were investigated respectively by immunohistochemical and RT PCR techniques.Results:The positive expression of bcl 2,bax protein was observed in 52(42.3 % vs 59.61 %) cases.The bcl 2 expression rate was much higher in those with poor differentiation and in stage Ⅲ than those with well differentiation and stage Ⅰ ( P 0.01).Conclusion:Overexpression of bcl 2 protein is predominantly observed in lung cancer at late stage;p53mRNA and bax protein play a key role in early stage.They modulate and co operate the balance status of death and survival signals in cells.

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Objective:To investigate the relationship between expression of p53mRNA and bcl 2,bax protein,and their clinicopathologic features.Methods:Expression of bcl 2,bax protein and p53mRNA in 52 cases of surgically resected primary lung cancer were investigated respectively by immunohistochemical and RT PCR techniques.Results:The positive expression of bcl 2,bax protein was observed in 52(42.3 % vs 59.61 %) cases.The bcl 2 expression rate was much higher in those with poor differentiation and in stage Ⅲ than those with well differentiation and stage Ⅰ ( P 0.01).Conclusion:Overexpression of bcl 2 protein is predominantly observed in lung cancer at late stage;p53mRNA and bax protein play a key role in early stage.They modulate and co operate the balance status of death and survival signals in cells.

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Available abstract

Objective:To investigate the relationship between expression of p53mRNA and bcl 2,bax protein,and their clinicopathologic features.Methods:Expression of bcl 2,bax protein and p53mRNA in 52 cases of surgically resected primary lung cancer were investigated respectively by immunohistochemical and RT PCR techniques.Results:The positive expression of bcl 2,bax protein was observed in 52(42.3 % vs 59.61 %) cases.The bcl 2 expression rate was much higher in those with poor differentiation and in stage Ⅲ than those with well differentiation and stage Ⅰ ( P 0.01).Conclusion:Overexpression of bcl 2 protein is predominantly observed in lung cancer at late stage;p53mRNA and bax protein play a key role in early stage.They modulate and co operate the balance status of death and survival signals in cells.

Key concepts: BAX Protein, Immunohistochemistry, Lung cancer, Stage (stratigraphy), Protein expression, Lung, Apoptosis, Bcl-2-associated X protein

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