Biomaterial Database

[Correlation between apoptosis and proliferation in gastric pre-carcinoam]. 1999

A Xu, and S Li, and J Liu

Research Laboratory of Digestive Disease, Huizhou Central People's Hospital, Guangdong 516001.

OBJECTIVE To clarify the correlation between apoptosis/proliferation and the expressions of oncogene bcl-2 and P53 in the changes from superficial gastritis, intestinal metaplasia, dysplasia, gastric cancer in early stage to advanced gastric cancer. METHODS TUNEL method was used to detected apoptosis. Immunohistochemical analysis was used to detect the expressions of proliferating cellular nuclear antigen(PCNA), bcl-2 protein and P53 protein. Results In the patients of superficial gastritis, atrophic gastritis, intestinal metaplasia, dysplasia, early gastric cancer and advanced gastric cancer and advanced gastric cancer, apoptotic indexes were: (6.4 +/- 1.9)%, (14.1 +/- 4.1)%, (23.3 +/- 6.1)%, (17.4 +/- 2.6)%, (11.3 +/- 3.7)%, (6.3 +/- 2.0)% respectively. PCNA indexes were: (11.3 +/- 2.2)%, (18.9 +/- 6.5)%, (20.3 +/- 7.3)%, (40.0 +/- 10.6)%, (53.1 +/- 10.9)% and (72.4 +/- 18.4)% respectively; the expression rates of bcl-2 were 10.0%, 23.3%, 40.0%, 56.7%, 85.7% and 46.7%. The expression rates of P53 were: 0%, 0%, 0%, 4.3%, 14.3% and 53.3%. The difference in the majority of observed indexes were significant (P < 0.05-0.01). CONCLUSIONS During the changes of gastric cancer, the apoptotic and proliferating indexes incerased simultaneously in superficial gastritis, atrophic gastritis and intestinal metaplasia. However, PCNA indexes further increased but apoptotic indexes decreased in dysplasia, early gastric cancer and advanced gastric cancer and advanced gastric cancer. The former may be the phenomenon in early gastric cancer and advanced gastric cancer and advanced gastic cancer. The former may be the phenomenon in ear early gastric cancer the latter may be the phenomenon in advanced gastric cancer.

UI	MeSH Term	Description	Entries
D011230	Precancerous Conditions	Pathological conditions that tend eventually to become malignant.	Preneoplastic Conditions,Condition, Preneoplastic,Conditions, Preneoplastic,Preneoplastic Condition,Condition, Precancerous,Conditions, Precancerous,Precancerous Condition
D002455	Cell Division	The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.	M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D005753	Gastric Mucosa	Lining of the STOMACH, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. The surface cells produce MUCUS that protects the stomach from attack by digestive acid and enzymes. When the epithelium invaginates into the LAMINA PROPRIA at various region of the stomach (CARDIA; GASTRIC FUNDUS; and PYLORUS), different tubular gastric glands are formed. These glands consist of cells that secrete mucus, enzymes, HYDROCHLORIC ACID, or hormones.	Cardiac Glands,Gastric Glands,Pyloric Glands,Cardiac Gland,Gastric Gland,Gastric Mucosas,Gland, Cardiac,Gland, Gastric,Gland, Pyloric,Glands, Cardiac,Glands, Gastric,Glands, Pyloric,Mucosa, Gastric,Mucosas, Gastric,Pyloric Gland
D005756	Gastritis	Inflammation of the GASTRIC MUCOSA, a lesion observed in a number of unrelated disorders.	Gastritides
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013274	Stomach Neoplasms	Tumors or cancer of the STOMACH.	Cancer of Stomach,Gastric Cancer,Gastric Neoplasms,Stomach Cancer,Cancer of the Stomach,Gastric Cancer, Familial Diffuse,Neoplasms, Gastric,Neoplasms, Stomach,Cancer, Gastric,Cancer, Stomach,Cancers, Gastric,Cancers, Stomach,Gastric Cancers,Gastric Neoplasm,Neoplasm, Gastric,Neoplasm, Stomach,Stomach Cancers,Stomach Neoplasm
D016159	Tumor Suppressor Protein p53	Nuclear phosphoprotein encoded by the p53 gene (GENES, P53) whose normal function is to control CELL PROLIFERATION and APOPTOSIS. A mutant or absent p53 protein has been found in LEUKEMIA; OSTEOSARCOMA; LUNG CANCER; and COLORECTAL CANCER.	p53 Tumor Suppressor Protein,Cellular Tumor Antigen p53,Oncoprotein p53,TP53 Protein,TRP53 Protein,p53 Antigen,pp53 Phosphoprotein,Phosphoprotein, pp53
D017209	Apoptosis	A regulated cell death mechanism characterized by distinctive morphologic changes in the nucleus and cytoplasm, including the endonucleolytic cleavage of genomic DNA, at regularly spaced, internucleosomal sites, i.e., DNA FRAGMENTATION. It is genetically programmed and serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.	Apoptosis, Extrinsic Pathway,Apoptosis, Intrinsic Pathway,Caspase-Dependent Apoptosis,Classic Apoptosis,Classical Apoptosis,Programmed Cell Death,Programmed Cell Death, Type I,Apoptoses, Extrinsic Pathway,Apoptoses, Intrinsic Pathway,Apoptosis, Caspase-Dependent,Apoptosis, Classic,Apoptosis, Classical,Caspase Dependent Apoptosis,Cell Death, Programmed,Classic Apoptoses,Extrinsic Pathway Apoptoses,Extrinsic Pathway Apoptosis,Intrinsic Pathway Apoptoses,Intrinsic Pathway Apoptosis
D018809	Proliferating Cell Nuclear Antigen	Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the replication fork during DNA replication. PCNA expression correlates with the proliferation activity of several malignant and non-malignant cell types.	Antigen, Proliferating Cell Nuclear,PCNA
D019253	Proto-Oncogene Proteins c-bcl-2	Membrane proteins encoded by the BCL-2 GENES and serving as potent inhibitors of cell death by APOPTOSIS. The proteins are found on mitochondrial, microsomal, and NUCLEAR MEMBRANE sites within many cell types. Overexpression of bcl-2 proteins, due to a translocation of the gene, is associated with follicular lymphoma.	bcl-2 Proto-Oncogene Proteins,c-bcl-2 Proteins,B-Cell Leukemia 2 Family Proteins,BCL2 Family Proteins,BCL2 Proteins,B Cell Leukemia 2 Family Proteins,Family Proteins, BCL2,Proteins, BCL2,Proteins, BCL2 Family,Proto Oncogene Proteins c bcl 2,Proto-Oncogene Proteins, bcl-2,bcl 2 Proto Oncogene Proteins,c bcl 2 Proteins,c-bcl-2, Proto-Oncogene Proteins