scholarly journals Granulomata in Clear Cell Renal Cell Carcinoma: An Uncommon Presentation of a Common Cancer, Not Two Separate Entities

2020 ◽  
Vol 13 ◽  
pp. 2632010X2095421
Author(s):  
Daniel Hugh Russell

Sarcoidal-like granulomata (SLG) are known to occur as a response to a variety of tumor types, including lymphomas, prominently seminoma, other miscellaneous carcinomas, and rarely in renal cell carcinoma. There have been a handful of previously reported cases in the literature of SLG occurring in association with RCC. Of those previously reported, none were associated with infection and only 3 patients had a history of sarcoidosis. The prognostic significance of SLG in RCC is unsettled and somewhat complicated by the relative rarity of its occurrence and the paucity of data therein. A case is presented of an otherwise histologically typical clear cell renal cell carcinoma with peri-tumoral and intra-tumoral SLG. Special stains were negative for organisms and past medical history was negative for sarcoidosis and connective tissue disease.

2021 ◽  
Vol 2021 ◽  
pp. 1-32
Author(s):  
Yue Wu ◽  
Xi Zhang ◽  
Xian Wei ◽  
Huan Feng ◽  
Bintao Hu ◽  
...  

Mitochondria not only are the main source of ATP synthesis but also regulate cellular redox balance and calcium homeostasis. Its dysfunction can lead to a variety of diseases and promote cancer and metastasis. In this study, we aimed to explore the molecular characteristics and prognostic significance of mitochondrial genes (MTGs) related to oxidative stress in clear cell renal cell carcinoma (ccRCC). A total of 75 differentially expressed MTGs were analyzed from The Cancer Genome Atlas (TCGA) database, including 46 upregulated and 29 downregulated MTGs. Further analysis screened 6 prognostic-related MTGs (ACAD11, ACADSB, BID, PYCR1, SLC25A27, and STAR) and was used to develop a signature. Kaplan-Meier survival and receiver operating characteristic (ROC) curve analyses showed that the signature could accurately distinguish patients with poor prognosis and had good individual risk stratification and prognostic potential. Stratified analysis based on different clinical variables indicated that the signature could be used to evaluate tumor progression in ccRCC. Moreover, we found that there were significant differences in immune cell infiltration between the low- and high-risk groups based on the signature and that ccRCC patients in the low-risk group responded better to immunotherapy than those in the high-risk group (46.59% vs 35.34%, P = 0.008 ). We also found that the expression levels of these prognostic MTGs were significantly associated with drug sensitivity in multiple ccRCC cell lines. Our study for the first time elucidates the biological function and prognostic significance of mitochondrial molecules associated with oxidative stress and provides a new protocol for evaluating treatment strategies targeting mitochondria in ccRCC patients.


2013 ◽  
Vol 31 (7) ◽  
pp. 1367-1377 ◽  
Author(s):  
Pei-Yin Ho ◽  
Shih-Chieh Chueh ◽  
Shyh-Horng Chiou ◽  
Shuo-Meng Wang ◽  
Wei-Chou Lin ◽  
...  

2010 ◽  
Vol 176 (2) ◽  
pp. 575-584 ◽  
Author(s):  
Iris J.H. van Vlodrop ◽  
Marcella M.L. Baldewijns ◽  
Kim M. Smits ◽  
Leo J. Schouten ◽  
Leander van Neste ◽  
...  

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