Cystic clear cell papillary renal cell carcinoma: is it related to multilocular clear cell cystic neoplasm of low malignant potential?

2015 ◽  
Vol 68 (5) ◽  
pp. 666-672 ◽  
Author(s):  
Fadi Brimo ◽  
Chantal Atallah ◽  
Gangyong Li ◽  
John R Srigley
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Clear Cell ◽  
Papillary Renal Cell Carcinoma ◽  
Malignant Potential ◽  
Cystic Neoplasm ◽  
Low Malignant Potential

Genetic mutations in accordance with a low malignant potential tumour are not demonstrated in clear cell papillary renal cell carcinoma

2016 ◽  
Vol 69 (6) ◽  
pp. 547-550 ◽  
Author(s):  
Maria Rosaria Raspollini ◽  
Francesca Castiglione ◽  
Liang Cheng ◽  
Rodolfo Montironi ◽  
Antonio Lopez-Beltran
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Clear Cell ◽  
Papillary Renal Cell Carcinoma ◽  
Genetic Mutations ◽  
Linear Arrangement ◽  
Ca Ix ◽  
Low Malignant Potential ◽  
Papillary Neoplasm

Clear cell papillary renal cell carcinoma (CCPRCC) cases were evaluated for mutations on the following genes: KRAS, NRAS, BRAF, PIK3CA, ALK, ERBB2, DDR2, MAP2K1, RET and EGFR. Four male and three female patients of age 42–74 years were evaluated. All cases were incidentally detected by ultrasound and ranged 1.8–3.5 cm. Microscopic examination showed variably tubulopapillary, tubular acinar, cystic architecture and the characteristic linear arrangement of nuclei. The cells were reactive with CK7 (strong), CA IX (cup-shape) and 34 β E12. CD10, AMACR/RACEMASE and GATA3 were negative. There were no mutations on any of the investigated genes. This preliminary observation supports the concept that CCPRCC might be indeed an indolent tumour worth it to be named as clear cell papillary neoplasm of low potential.

scholarly journals Down-regulation of BCL2L13 renders poor prognosis in clear cell and papillary renal cell carcinoma

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fei Meng ◽  
Luojin Zhang ◽  
Mingjun Zhang ◽  
Kaiqin Ye ◽  
Wei Guo ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Kidney Cancer ◽  
Renal Cell ◽  
Poor Prognosis ◽  
Clear Cell ◽  
Papillary Renal Cell Carcinoma ◽  
Functional Enrichment ◽  
Cancer Tissue ◽  
Down Regulation

Abstract Background BCL2L13 belongs to the BCL2 super family, with its protein product exhibits capacity of apoptosis-mediating in diversified cell lines. Previous studies have shown that BCL2L13 has functional consequence in several tumor types, including ALL and GBM, however, its function in kidney cancer remains as yet unclearly. Methods Multiple web-based portals were employed to analyze the effect of BCL2L13 in kidney cancer using the data from TCGA database. Functional enrichment analysis and hubs of BCL2L13 co-expressed genes in clear cell renal cell carcinoma (ccRCC) and papillary renal cell carcinoma (pRCC) were carried out on Cytoscape. Evaluation of BCL2L13 protein level was accomplished through immunohistochemistry on paraffin embedded renal cancer tissue sections. Western blotting and flow cytometry were implemented to further analyze the pro-apoptotic function of BCL2L13 in ccRCC cell line 786-0. Results BCL2L13 expression is significantly decreased in ccRCC and pRCC patients, however, mutations and copy number alterations are rarely observed. The poor prognosis of ccRCC that derived from down-regulated BCL2L13 is independent of patients’ gender or tumor grade. Furthermore, BCL2L13 only weakly correlates with the genes that mutated in kidney cancer or the genes that associated with inherited kidney cancer predisposing syndrome, while actively correlates with SLC25A4. As a downstream effector of BCL2L13 in its pro-apoptotic pathway, SLC25A4 is found as one of the hub genes that involved in the physiological function of BCL2L13 in kidney cancer tissues. Conclusions Down-regulation of BCL2L13 renders poor prognosis in ccRCC and pRCC. This disadvantageous factor is independent of any well-known kidney cancer related genes, so BCL2L13 can be used as an effective indicator for prognostic evaluation of renal cell carcinoma.

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