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Renal tumor with alpha B crystallin expression.

Mee-Seon Kim1, Hyoun Wook Lee1, Eun Hee Lee1

  • 1Department of Pathology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine Changwon, South Korea.

International Journal of Clinical and Experimental Pathology
|October 15, 2015
PubMed
Summary
This summary is machine-generated.

Alpha B crystallin is highly expressed in renal cell carcinoma, particularly clear cell and papillary types, distinguishing it from urothelial carcinoma. However, alpha B crystallin is not a reliable prognostic marker for renal cell carcinoma survival.

Keywords:
Alpha B crystallinoverall survivalrenal cell carcinomasubtypeurothelial carcinoma

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Area of Science:

  • Oncology
  • Biomarker Research
  • Urology

Background:

  • Alpha B crystallin (αB-crystallin) is expressed in human proximal convoluted tubules and Henle limbs.
  • Previous studies indicated αB-crystallin expression in renal cell carcinoma (RCC).

Purpose of the Study:

  • To investigate the association between αB-crystallin expression and renal cell carcinoma (RCC) and urothelial carcinoma (UC).
  • To analyze αB-crystallin expression across RCC subtypes.
  • To determine the relationship between αB-crystallin expression and patient survival in RCC.

Main Methods:

  • Immunohistochemical analysis of αB-crystallin expression in RCC and UC tissues.
  • Correlation analysis of αB-crystallin expression with tumor subtype and patient survival data.

Main Results:

  • Significantly higher αB-crystallin expression in RCC compared to UC (P=7.967e-07).
  • αB-crystallin reactivity observed in 67.5% of clear cell RCC and 100% of papillary RCC, but 0% of chromophobe RCC.
  • No significant association found between αB-crystallin expression and overall survival in RCC patients.

Conclusions:

  • αB-crystallin may serve as a valuable marker for identifying renal cell carcinoma, aiding in the classification of poorly differentiated kidney tumors and metastatic lesions.
  • αB-crystallin is not a prognostic indicator for renal cell carcinoma survival.