scholarly journals Tumour Evolution and Seed and Soil Mechanism in Pancreatic Metastases of Renal Cell Carcinoma

Cancers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1342
Author(s):  
Franz Sellner ◽  
Sabine Thalhammer ◽  
Martin Klimpfinger

In metastatic renal cell carcinoma, pancreatic metastases can appear in two clinical manifestations: (a) very rarely as isolated pancreatic metastases and (b) in the context with multi-organ metastatic disease. Both courses are characterised by rare, unusual clinical features. For isolated pancreatic metastases, the literature shows no effect on survival in all 11 publications that examined the effect of singular versus multiple pancreatic metastases; a lack of effect on survival time was also present in all 8 studies on pancreatic metastases size, in 7 of 8 studies on the influence of disease-free interval (DFI), and in 6 of 7 studies on the influence of synchronous versus metachronous metastases. In multi-organ site metastases observations, on the other hand, all five available references showed significantly better results in patients with concurrent pancreatic metastases compared to those without pancreatic metastases, although the total number of affected organs in the pancreatic metastases cohort was larger. Tumour volume-dependent risk factors thus remain surprisingly ineffective in both groups, which contradicts the usual behaviour of solid tumours. The reasons for this unusual behaviour and possible relations to tumour evolution and the hypothesis of an influence of a seed and soil mechanism in the occurrence of pancreatic metastases in metastatic renal cell carcinoma are discussed.

2015 ◽  
Vol 117 (5) ◽  
pp. 761-765 ◽  
Author(s):  
Sarathi Kalra ◽  
Bradley J. Atkinson ◽  
Marc Ryan Matrana ◽  
Surena F. Matin ◽  
Christopher G. Wood ◽  
...  

2019 ◽  
Vol 37 (7_suppl) ◽  
pp. 633-633 ◽  
Author(s):  
Nirmish Singla ◽  
Jacob Choi ◽  
Oreoluwa Onabolu ◽  
Layton Woolford ◽  
Christina Stevens ◽  
...  

633 Background: Patients with metastatic renal cell carcinoma (mRCC) involving the pancreas have been shown to exhibit a relatively indolent course, yet the biologic explanation is unclear. We sought to characterize the genomic landscape of patients with mRCC harboring pancreatic metastases to identify molecular drivers of pancreatic tropism. Methods: mRCC patients harboring pancreatic metastases from UTSW and Cleveland Clinic were identified. Clinicopathologic data and oncologic outcomes were analyzed. Samples were obtained from primary tumors, metastatic sites (including pancreatic or other distant metastases), and matched normal tissue. Whole exome (WES) and RNA sequencing of tumors was conducted. Patient-derived xenograft (PDX) models were generated from a subset of patients, and the engrafted tumors were analyzed. Results: 31 mRCC patients with pancreatic metastases were included with 54 tumor samples derived from the primary tumor or thrombus (24), pancreatic metastasis (21), or other metastatic sites (9). Median follow-up was 101 months. Clinicopathologic characteristics were similar between the two institutional cohorts, and all but one patient were favorable or intermediate IMDC risk. All patients had clear cell histology. 8 patients (26%) were metastatic at diagnosis, and median time to metastasis in the remaining patients was 74 months (IQR 32-120). Overall (OS) and cancer-specific (CSS) survival did not vary by IMDC risk group. Morphologically, tumors largely displayed low-grade acinar patterns. WES with matched normal tissue and RNAseq were completed with adequate quality for 48 and 30 samples, respectively. 14 PDX lines were generated, of which 5 (36%) engrafted stably (≥2 passages). WES from 2 tumorgraft specimens revealed preservation of specific mutations in the corresponding human samples. Conclusions: mRCC patients with pancreatic metastases exhibit remarkably favorable survival outcomes. The relatively indolent biology of these tumors is reflected histologically and genomically and can be recapitulated in PDX models. Understanding tumor heterogeneity may help refine prognostic models for mRCC and hold implications for improved personalization of therapy.


2009 ◽  
Vol 125 (2) ◽  
pp. 474-482 ◽  
Author(s):  
Daniela Wuttig ◽  
Barbara Baier ◽  
Susanne Fuessel ◽  
Matthias Meinhardt ◽  
Alexander Herr ◽  
...  

2007 ◽  
Vol 100 (4) ◽  
pp. 755-759 ◽  
Author(s):  
Phillip M. Pierorazio ◽  
James M. McKiernan ◽  
Tara R. McCann ◽  
Supriya Mohile ◽  
Daniel Petrylak ◽  
...  

1994 ◽  
Vol 80 (6) ◽  
pp. 468-472 ◽  
Author(s):  
Giuseppe Landonio ◽  
Claudia Baiocchi ◽  
Daniela Cattaneo ◽  
Massimo Ferrari ◽  
Ornella Gottardi ◽  
...  

Background Metastatic renal cell carcinoma is a “capricious” tumor. Many prognostic factors have been evaluated, treatment is still controversial, and results are not coincident. Methods We reviewed 156 patients with metastatic renal cell carcinoma. Survival from the time of diagnosis was the end point of the study. The influence on survival of age, sex, nephrectomy, disease-free interval, performance status, site and number of metastases was analyzed. Univariate and multivariate analysis were done. Survival according to different therapies was also evaluated. Results In our study, no nephrectomy, a disease-free interval < 24 months, > 2 metastatic sites and a performance status > 2 proved to be risk factors. According to the number of risk factors, 3 groups of patients were identified (low, intermediate and high risk). We observed 3 kinds of responses to treatments: 1) in untreated patients (n = 48), median overall survival was 6 months, and the 24-month survival rate was 8%; 2) in patients treated with hormone therapy and/or chemotherapy (n = 73), median overall survival was 13 months, and the 24-month survival rate was 24%; 3) in patients treated with interferon and/or interleukin-2 (n = 35), median overall survival was 16 months and the 24-month survival rate was 34%. Conclusions Our results are only partially in accordance with those observed by other authors. Risk factors and treatment must be determined in more defined and selected studies.


2016 ◽  
Vol 34 (2_suppl) ◽  
pp. 541-541 ◽  
Author(s):  
John Ross Kucharczyk ◽  
Marc Ryan Matrana

541 Background: Late relapse of renal cell carcinoma (RCC), or presentation with metastatic disease after a disease free interval of >5 years, is a known behavior of RCC. Recent studies have concluded that late relapse RCC is associated with favorable patient and tumor characteristics as well as an improved response to targeted therapy (TT) when compared to early relapse patients. Less studied are patients who relapse very late, with a disease free interval >10 years. We evaluated the clinical characteristics, response to TT and outcomes of this unique population. Methods: We collected data on consecutive patients with metastatic RCC who had disease recurrence >10 years after nephrectomy. Outcomes were tabulated using basic statistical techniques; adverse events were graded using CTCAE v4.0 and treatment response graded using RECIST 1.1. Results: Among 720 RCC patients treated with nephrectomy, we identified 8 who developed recurrent metastatic disease after a >10 year disease free interval (median: 16.7 years; range: 11.7-29.0). All patients presented with clear cell histology; 88% favorable IMDC and MSKCC risk subgroups. All patients presented with multiple metastases, with the most common sites being lung and bone, while unusual sites such as soft tissue, pancreas and adrenal were also detected. Median time on first-line TT was 20.1 months; 4, 3 and 1 patient received pazopanib (best response: PR), sunitinib (best response: SD) and cytokine (best response: PD) as first-line therapy, respectively. The median number of sequential TT received was 2 (range: 1-4). Four patients died, median OS was 46.6 months (range: 9.8-129), 3 year OS rate was 63%. Common adverse events to TT were fatigue (88%), anorexia (38%) and diarrhea (50%), 94% grade 1/2. Conclusions: Patients are at life-long risk of recurrence after resection of localized RCC as it is possible for metastases to present >10 years after resection. Patients in our study had relatively large metastatic burden and a wide distribution of metastatic sites, insights that may be useful clinically during surveillance. Our cohort demonstrated favorable prognostic features and outcomes when compared to historical controls.


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