scholarly journals A Five Collagen-Related Gene Signature to Estimate the Prognosis and Immune Microenvironment in Clear Cell Renal Cell Cancer

Vaccines ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 1510
Author(s):  
Xiaokai Shi ◽  
Xiao Zhou ◽  
Chuang Yue ◽  
Shenglin Gao ◽  
Zhiqin Sun ◽  
...  

Collagen is the main component of the extracellular matrix (ECM) and might play an important role in tumor microenvironments. However, the relationship between collagen and clear cell renal cell cancer (ccRCC) is still not fully clarified. Hence, we aimed to establish a collagen-related signature to predict the prognosis and estimate the tumor immune microenvironment in ccRCC patients. Patients with a high risk score were often correlated with unfavorable overall survival (OS) and an immunosuppressive microenvironment. In addition, the collagen-related genetic signature was highly correlated with clinical pathological features and can be considered as an independent prognostic factor in ccRCC patients. Moreover, GSEA results show that patients with a high risk grade tend to be associated with epithelial–mesenchymal junctions (EMT) and immune responses. In this study, we developed a collagen-related gene signature, which might possess the potential to predict the prognosis and immune microenvironment of ccRCC patients and function as an independent prognostic factor in ccRCC.

2021 ◽  
Author(s):  
Xiaokai Shi ◽  
Xiao Zhou ◽  
Chuang Yue ◽  
Chao Lu ◽  
Shenglin Gao ◽  
...  

Abstract Background: Collagen is the main component of Extracellular matrix (ECM) and might play an important role in tumor microenvironment. However, the relationship between collagen and clear cell renal cell cancer (ccRCC) still not fully clarified. Hence, we aimed to establish a collagen-related signature to predict the prognosis and estimate the tumor immune microenvironment in ccRCC patients. Results: In this study, we established a five collagen-related gene signature to estimate the immune microenvironment and predict the prognosis of ccRCC patients. Patients with high-risk score were often correlated with unfavorable overall survival (OS) and immunosuppressive microenvironment. In addition, the collagen-related genetic signature was highly correlated with clinical pathological features and can be considered as independent prognostic factors in ccRCC patients. Besides, GSEA results also show that patients with high-risk grade tend to be associated with epithelial-mesenchymal junctions (EMT) and immune responses.Conclusion: In this study, we developed a collagen-related gene signature, which might possess the potential to predict the prognosis and immune microenvironment of ccRCC patients and function as an independent prognostic factor in ccRCC.


2013 ◽  
Vol 12 (4) ◽  
pp. e1115, C07
Author(s):  
M. Chocholatý ◽  
K. Havlová ◽  
M. Schmidt ◽  
M. Kalousová ◽  
M. Jáchymová ◽  
...  

2021 ◽  
Vol 39 (6_suppl) ◽  
pp. 275-275
Author(s):  
Grant D. Stewart ◽  
Sarah J. Welsh ◽  
Stephan Ursprung ◽  
Ferdia Gallagher ◽  
Iosif Mendichovszky ◽  
...  

275 Background: Venous tumor thrombus (VTT) extension occurs in 4-15% cases of renal cell cancer (RCC). The Mayo classification distinguishes 4 levels of VTT extension between the renal vein and supradiaphragmatic inferior vena cava (IVC). Although surgery is performed with curative intent, mortality is high (5-15%) with complications increasing with the level of the VTT. 5-year survival rates are poor; ~40-65% in non-metastatic RCC. It is hypothesised that neoadjuvant targeted therapy could downstage the VTT reducing the extent of surgery, leading to reduced surgical morbidity and mortality, and increased survival. However, level I or II evidence is lacking. NAXIVA provides the first level II evidence in this patient group, assessing the response of VTT to axitinib. Extensive translational sampling will provide in depth interrogation of VTT (using genomics, proteomics, immunophenotyping and metabolomics) to examine the role of the tumor microenvironment of VTT and response to axitinib. Methods: NAXIVA was a single arm, single agent, multi-center phase 2 feasibility study of axitinib in patients with both metastatic and non-metastatic clear cell RCC prior to nephrectomy and thrombectomy. A Simon two stage minimax design was adopted and the trial designed for adequate power to distinguish a <5% from a >25% improvement in the Mayo VTT level. 21 patients were recruited over a 24 month period between 15/Dec/2017 and 06/Jan/2020 at 5 sites across the UK. Patients were treated with 8 weeks of axitinib (starting dose 5mg bd, increasing to 10mg bd as tolerated) prior to planned surgery. The primary endpoint was the percentage of evaluable patients with an improvement in VTT according to the Mayo classification (assessed using MRI abdomen scans at screening and week 9, prior to surgery. Secondary endpoints were percentage change in surgical approach, percentage change in VTT height, response rate (by RECIST) and evaluation of surgical morbidity assessed by Clavien-Dindo classification. Results: The percentage of evaluable patients with an improvement in VTT according to the Mayo classification was 26.58% [80% CI: 15.76%, 39.74%] (6 of 21 evaluable patients). 35.29% (6 of 17 patients who progressed to surgery) had a change in surgical approach to a less invasive option. There was a median percentage reduction in VTT height of 21.49% (SD=27.60%). The response rate (by RECIST) in the evaluable population was 61.90% SD, 14.29% PR, 9.52% PD. In terms of surgical morbidity 11.76% (2 of 17 patients who progressed to surgery) experienced a Clavien-Dindo 3 or greater complication (0 CD3, 1 CD4, 1 CD5). Conclusions: NAXIVA provides unique prospective data on the feasibility of neoadjuvant axitinib administration to down stage IVC VTT and reduce the extent of surgery. Work is ongoing to establish predictors of response. Clinical trial information: NCT03494816 .


2021 ◽  
Author(s):  
Wei Song ◽  
Weiting Kang ◽  
Qi Zhang

Abstract Objective: This study aimed to construct a ferroptosis-related gene signature to predict clinical prognosis and tumor immunity in patients with kidney renal clear cell carcinoma (KIRC).Methods: The mRNA expression profiles and corresponding clinical data of KIRC patients were downloaded from The Cancer Genome Atlas (TCGA), which were randomly divided into training (398 patients) and validation set (132 patients). The iron death related (IDR) prediction model was constructed based on training set and 60 ferroptosis-related genes from previous literatures, followed by prognostic performance evaluation and verification using the validation set. Moreover, functional enrichment, immune cell infiltration, metagene clusters correlation, and TIDE scoring analyses were performed. Results: In total, 23 ferroptosis-related genes were significantly associated with overall survival (OS). The IDR prediction model (a 10-gene signature) was then constructed to stratify patients into two risk groups. The OS of KIRC patients with high-risk scores was significantly shorter than those with low-risk scores. Moreover, the risk score was confirmed as an independent prognostic predictor for OS. The positive and negative correlated genes with this model were significantly enriched in p53 signaling pathway, and cGMP-PKG signaling pathway. The patients in the high-risk group had higher ratios of plasma cells, T cells CD8, and T cells regulatory Tregs. Furthermore, IgG, HCK, LCK, and Interferson metagenes were significantly correlated with risk score. By TIDE score analysis, patients in the high-risk group could benefit from immunotherapy.Conclusions: The identified ferroptosis-related gene signature is significantly correlated with clinical prognosis and immune immunity in KIRC patients.


2016 ◽  
Vol 23 (8) ◽  
pp. 2006-2018 ◽  
Author(s):  
Iris J.H. van Vlodrop ◽  
Sophie C. Joosten ◽  
Tim De Meyer ◽  
Kim M. Smits ◽  
Leander Van Neste ◽  
...  

2014 ◽  
Vol 25 ◽  
pp. iv292 ◽  
Author(s):  
G.A. Bjarnason ◽  
B. Naveen ◽  
E. Winquist ◽  
C.K. Kollmannsberger ◽  
C. Canil ◽  
...  

2012 ◽  
Vol 30 (5_suppl) ◽  
pp. 443-443
Author(s):  
Robert J. Amato ◽  
Amber Flaherty ◽  
Somyata Saxena ◽  
Mika Stepankiw

443 Background: Everolimus, an oral mammalian target of rapamycin (mTOR) inhibitor, has demonstrated efficacy affects tumor growth by blocking growth factor stimulation, arresting cell cycle progression, and inhibiting angiogenesis. mTOR inhibitors and agents with primarily antiangiogenic activity have been shown to have efficacy in renal cell cancer (RCC). This study expanded the original everolimus study of 41 patients with metastatic clear cell renal cell cancer to 66 patients to examine outcome and clinical prognostic factors associated with outcome Methods: Patients had confirmed predominantly clear cell RCC. Everolimus was given at a dose of 10 mg daily orally without interruption (28-day cycle), with dose modifications for toxicity (graded according to National Cancer Institute Common Toxicity Criteria, version 3.0). Patients were evaluated every 2 cycles (8 weeks) using Response Evaluation Criteria in Solid Tumors (RECIST). Results: Of 66 evaluable and treated patients, 73% were male, and 45% were >60. Forty-five percent had right kidney involvement, 49% left kidney involvement, and 6% had dual kidney involvement. Eighty-six percent had prior systemic therapy, and 76% of patients had at least two metastatic sites including lung (72%), liver (26%), bone (48%), lymph nodes (50%), adrenal (21%), and other (39%). Twenty-four (36%) of patients had a progression-free survival (PFS) of ≥12 months, and 40 patients (61%) had an overall survival (OS) ≥12 months. Factors most likely to have an influence on OS benefit was high LDH, alkaline phosphatase, and calcium; low hemoglobin; and prior treatment with tyrokinase inhibitors. Conclusions: Everolimus was found to have clinical benefit in patients with clear cell RCC. Clinical prognostic factors may help determine patients most likely to receive benefit from everolimus. Information regarding curves and correlation between prognostic factors and OS and PFS will be presented.


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