Biomaterial Database

Microvessel area of immature vessels is a prognostic factor in renal cell carcinoma. 2014

Mototaka Sato, and Yasutomo Nakai, and Wataru Nakata, and Takahiro Yoshida, and Koji Hatano, and Atsunari Kawashima, and Kazutoshi Fujita, and Motohide Uemura, and Hitoshi Takayama, and Norio Nonomura

Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan.

OBJECTIVE To analyze the presence of immature vessels as a predictive factor of prognosis in patients with renal cell carcinoma. METHODS Tissue samples were obtained from 50 renal cell carcinoma patients who underwent radical nephrectomy, and the blood vessels were stained using antibodies to cluster of differentiation 34 and α-smooth muscle actin. Immature vessels were defined as those positive for cluster of differentiation 34, and mature vessels as those positive for both cluster of differentiation 34 and α-smooth muscle actin. The extent of vascularization was quantified by calculating the microvessel area and microvessel density. RESULTS The microvessel area of immature vessels was positively associated with tumor grade (P < 0.0001), T stage (P < 0.0001) and American Joint Committee on Cancer stage (P < 0.0001), and was significantly higher in tumors with metastasis than in those without metastasis (P < 0.0001). The microvessel density did not associate with tumor grade or T stage. The disease-free survival and overall survival were significantly shorter in patients with high microvessel area. CONCLUSIONS The microvessel area of immature vessels seems to be associated with renal cell carcinoma aggressiveness, suggesting this might be considered as a novel prognostic factor in patients with these tumors.

UI	MeSH Term	Description	Entries
D007680	Kidney Neoplasms	Tumors or cancers of the KIDNEY.	Cancer of Kidney,Kidney Cancer,Renal Cancer,Cancer of the Kidney,Neoplasms, Kidney,Renal Neoplasms,Cancer, Kidney,Cancer, Renal,Cancers, Kidney,Cancers, Renal,Kidney Cancers,Kidney Neoplasm,Neoplasm, Kidney,Neoplasm, Renal,Neoplasms, Renal,Renal Cancers,Renal Neoplasm
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009367	Neoplasm Staging	Methods which attempt to express in replicable terms the extent of the neoplasm in the patient.	Cancer Staging,Staging, Neoplasm,Tumor Staging,TNM Classification,TNM Staging,TNM Staging System,Classification, TNM,Classifications, TNM,Staging System, TNM,Staging Systems, TNM,Staging, Cancer,Staging, TNM,Staging, Tumor,System, TNM Staging,Systems, TNM Staging,TNM Classifications,TNM Staging Systems
D009389	Neovascularization, Pathologic	A pathologic process consisting of the proliferation of blood vessels in abnormal tissues or in abnormal positions.	Angiogenesis, Pathologic,Angiogenesis, Pathological,Neovascularization, Pathological,Pathologic Angiogenesis,Pathologic Neovascularization,Pathological Angiogenesis,Pathological Neovascularization
D011237	Predictive Value of Tests	In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.	Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D011379	Prognosis	A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.	Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D002292	Carcinoma, Renal Cell	A heterogeneous group of sporadic or hereditary carcinoma derived from cells of the KIDNEYS. There are several subtypes including the clear cells, the papillary, the chromophobe, the collecting duct, the spindle cells (sarcomatoid), or mixed cell-type carcinoma.	Adenocarcinoma, Renal Cell,Carcinoma, Hypernephroid,Grawitz Tumor,Hypernephroma,Renal Carcinoma,Adenocarcinoma Of Kidney,Adenocarcinoma, Renal,Chromophil Renal Cell Carcinoma,Chromophobe Renal Cell Carcinoma,Clear Cell Renal Carcinoma,Clear Cell Renal Cell Carcinoma,Collecting Duct Carcinoma,Collecting Duct Carcinoma (Kidney),Collecting Duct Carcinoma of the Kidney,Nephroid Carcinoma,Papillary Renal Cell Carcinoma,Renal Cell Cancer,Renal Cell Carcinoma,Renal Cell Carcinoma, Papillary,Renal Collecting Duct Carcinoma,Sarcomatoid Renal Cell Carcinoma,Adenocarcinoma Of Kidneys,Adenocarcinomas, Renal Cell,Cancer, Renal Cell,Carcinoma, Collecting Duct,Carcinoma, Collecting Duct (Kidney),Carcinoma, Nephroid,Carcinoma, Renal,Carcinomas, Collecting Duct,Carcinomas, Collecting Duct (Kidney),Carcinomas, Renal Cell,Collecting Duct Carcinomas,Collecting Duct Carcinomas (Kidney),Hypernephroid Carcinoma,Hypernephroid Carcinomas,Hypernephromas,Kidney, Adenocarcinoma Of,Nephroid Carcinomas,Renal Adenocarcinoma,Renal Adenocarcinomas,Renal Carcinomas,Renal Cell Adenocarcinoma,Renal Cell Adenocarcinomas,Renal Cell Cancers,Renal Cell Carcinomas,Tumor, Grawitz
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man