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Mihai I, Dura H, Teodoru CA, Todor SB, Ichim C, Grigore N, Mohor CI, Mihetiu A, Oprinca G, Bacalbasa N, Tanasescu D, Bratu DG, Boicean A, Oros B, Hasegan A. Intraoperative Ultrasound: Bridging the Gap between Laparoscopy and Surgical Precision during 3D Laparoscopic Partial Nephrectomies. Diagnostics (Basel) 2024; 14:942. [PMID: 38732356 PMCID: PMC11083918 DOI: 10.3390/diagnostics14090942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/11/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
The use of 3D laparoscopic partial nephrectomy has emerged as a cornerstone in the surgical arsenal for addressing renal tumors, particularly in managing challenging cases characterized by deeply seated tumors embedded within the renal parenchyma. In these intricate scenarios, the utilization of intraoperative ultrasound (IOUS) acquires paramount importance, serving as an indispensable tool for guiding and meticulously monitoring the surgical process in real time. To further explore the efficacy of IOUS-guided techniques, we conducted a retrospective study comparing outcomes in patients who underwent partial nephrectomy with IOUS guidance (n = 60) between 2020 and 2022 with a cohort from 2018 to 2019 without IOUS guidance (n = 25). Our comprehensive analysis encompassed various post-operative parameters, including the duration until food resumption, analgesia requirements, and length of the hospital stay. While these parameters exhibited comparable outcomes between the two groups, notable distinctions emerged in the intraoperative metrics. The IOUS-guided cohort demonstrated significantly reduced blood loss, a shorter median operative duration, and diminished ischemia time (p = 0.001). These compelling findings underscore the undeniable benefits of IOUS-guided techniques in not only facilitating the attainment of negative surgical margins but also in enhancing procedural safety and precision, thereby contributing to improved patient outcomes in the management of renal tumors.
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Affiliation(s)
- Ionela Mihai
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Horatiu Dura
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Cosmin Adrian Teodoru
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Samuel Bogdan Todor
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Cristian Ichim
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Nicolae Grigore
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Cosmin Ioan Mohor
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Alin Mihetiu
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - George Oprinca
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Nicolae Bacalbasa
- Surgery Department, University of Medicine and Pharmacy “Carol Davila” Bucharest, 020021 Bucharest, Romania;
| | - Denisa Tanasescu
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Dan Georgian Bratu
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Adrian Boicean
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
| | - Bogdan Oros
- County Clinical Emergency Hospital of Sibiu, 550245 Sibiu, Romania
| | - Adrian Hasegan
- Faculty of Medicine, Lucian Blaga University of Sibiu, 550169 Sibiu, Romania; (I.M.); (C.A.T.); (S.B.T.); (C.I.); (N.G.); (C.I.M.); (A.M.); (G.O.); (D.T.); (D.G.B.); (A.B.); (A.H.)
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Liu W, Zhang E, Zhang M. Current Application of Navigation Systems in Robotic-Assisted and Laparoscopic Partial Nephrectomy: Focus on the Improvement of Surgical Performance and Outcomes. Ann Surg Oncol 2024; 31:2163-2172. [PMID: 38063985 DOI: 10.1245/s10434-023-14716-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/20/2023] [Indexed: 01/09/2024]
Abstract
Kidney cancer represents the third most prevalent malignancy among all types of genitourinary cancer worldwide. Currently, there is a growing trend of employing partial nephrectomy for the management of large and complex tumors. Surgical outcomes are associated with some amendable surgical factors, including warm ischemic time, pedicle clamping, preserved volume of renal parenchyma, appropriate surgical strategy, and precise resection of the tumor. Improving surgical performance is pivotal for achieving favorable surgical outcomes. Due to advancements in imaging visualization technology and the shift of the medical paradigm toward precision medicine, an increasing number of navigation systems have been implemented in partial nephrectomy procedures. The navigation system can assist surgeons in formulating optimal surgical strategies and enhance the safety, precision, and feasibility of resecting complex renal tumors. In this review, we provide an overview of currently available navigation systems and their feasible applications, with a focus on how they contribute to the improvement of surgical performance and outcomes during robotic-assisted and laparoscopic partial nephrectomy.
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Affiliation(s)
- Wangmin Liu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Enchong Zhang
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Mo Zhang
- Department of Urology, The First Hospital of China Medical University, Shenyang, China.
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Senel S, Koudonas A, Ahmadzada J, Rassweiler J, Gözen AS. Is intraoperative ultrasonography necessary in laparoscopic partial nephrectomy for exophytic tumours? MINIM INVASIV THER 2023; 32:341-344. [PMID: 37525989 DOI: 10.1080/13645706.2023.2233611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 06/28/2023] [Indexed: 08/02/2023]
Abstract
INTRODUCTION The value of IOUS has been proven especially for endophytic kidney tumours, but has not been assessed critically for exophytic kidney tumours. We aimed to evaluate the value of IOUS for exophytic kidney tumours. MATERIAL AND METHODS The data of LPN cases were collected prospectively between 2000 and 2022. Thirty-two of 535 patients who underwent laparoscopic retroperitoneal partial nephrectomy without IOUS were matched with the IOUS applied cases according to tumour size, tumour localization and PADUA score. RESULTS There were no differences between the two groups in terms of the matching parameters. The average warm ischemia time was 14 min for the IOUS group (range 9-32 min) and 20 min for the non-IOUS group (range 7-52 min) (p = 0.01). Also, the average cutting time was shorter in the IOUS group (6 min vs 9 min) (p = 0.046). There was no difference between the two groups in terms of suturing times (8 min vs 8.5 min) (p = 0.66). The average tumour size was 3.5 cm and pathologically-proven residual tumour was detected in one patient in each group. CONCLUSION The use of IOUS in laparoscopic retroperitoneal partial nephrectomy for exophytic kidney tumours may shorten the warm ischemia time by reducing the cutting time.
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Affiliation(s)
- Samet Senel
- Department of Urology, Ankara City Hospital, Ankara, Turkey
| | - Antonios Koudonas
- First Department of Urology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Jens Rassweiler
- Department of Urology and Andrology, Danube Private University, Krems, Austria
| | - Ali Serdar Gözen
- Department of Urology, Medius Kliniken Ruit, Ostfildern, Germany
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Iwata T, Hayashi I, Gabata Y, Hongo F. Intraoperative ultrasonography in laparoscopic off-clamp partial nephrectomy for renal cell carcinoma adjacent to multiple renal cysts: a case report. J Med Ultrason (2001) 2023; 50:453-455. [PMID: 37119449 DOI: 10.1007/s10396-023-01307-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/14/2023] [Indexed: 05/01/2023]
Affiliation(s)
- Tsuyoshi Iwata
- Department of Urology, Kyoto Min-Iren Chuo Hospital, 2-1 Uzumasa-Tsuchimoto-cho, Kyoto City, 616-8147, Japan.
| | - Issei Hayashi
- Department of Urology, Kyoto Min-Iren Chuo Hospital, 2-1 Uzumasa-Tsuchimoto-cho, Kyoto City, 616-8147, Japan
| | - Yusuke Gabata
- Department of Urology, Kyoto Min-Iren Chuo Hospital, 2-1 Uzumasa-Tsuchimoto-cho, Kyoto City, 616-8147, Japan
| | - Fumiya Hongo
- Department of Urology, Kyoto Prefectural University of Medicine, 465 Kawaramachi-Hirokoji, Kyoto City, 602-8566, Japan
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Venkatachalapathy VSS, Palathullil DG, Abraham GP. Vascular injury during laparoscopic partial nephrectomy in a solitary kidney: management, outcome and audit. AFRICAN JOURNAL OF UROLOGY 2023. [DOI: 10.1186/s12301-023-00349-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
Abstract
Abstract
Background
Vascular injury during laparoscopic partial nephrectomy is a dreadful complication. Though it is a commonly discussed complication, the literature on the circumstances leading to vascular injury, methods of managing the complication and reporting of final outcomes in those cases are limited. We report a case of vascular injury during laparoscopic partial nephrectomy for a hilar tumor in a solitary kidney. We highlight the management of the complication, present the outcome and review the surgical technique.
Case presentation
A 62-year-old male with solitary kidney presented with left renal hilar mass of size 4.4 × 3.8x3.6 cm. The renal nephrometry score was 10ph. The serum creatinine at the time of presentation to the hospital was 1.4 mg/dl. Laparoscopic partial nephrectomy was performed. The patient had severe intraoperative bleeding due to a segmental renal artery injury. The bleeding presented after hilar unclamping and was managed by intracorporeal vascular repair. The blood loss was around 500 ml. The postoperative period was uneventful without the need for hemodialysis. The histopathology report was suggestive of clear cell renal cell carcinoma with negative surgical margin. The follow-up magnetic resonance urogram did not show evidence of any arterial pseudoaneurysm or residual/recurrent tumor. At 18-month follow-up, the serum creatinine was 1.9 mg/dl and the patient did not have any complaints.
Conclusions
Complication of vascular injury while performing laparoscopic partial nephrectomy for complex hilar tumors should be anticipated beforehand. Contingency plans to tackle this complication must be in place before attempting the surgery. Intracorporeal repair of vascular injury during laparoscopic partial nephrectomy is feasible when expertise is available. Low threshold for using endoscopic ultrasound, employing cold ischemia techniques, careful usage of hot cut during tumor resection and complete defatting of the kidney can all be considered ‘safe surgical practices’ during laparoscopic partial nephrectomy for complex hilar tumors. Following aforementioned ‘safe surgical practices’ helps in improving the outcomes and reducing the possibility of complication of vascular injury and helps in managing the complication effectively if it happens despite the precautions.
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Xiao Y, Shan ZJ, Yang JF, Len JJ, Yu YH, Yang ML. Nephrometric scoring system: Recent advances and outlooks. Urol Oncol 2023; 41:15-26. [PMID: 35907706 DOI: 10.1016/j.urolonc.2022.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 05/09/2022] [Accepted: 06/27/2022] [Indexed: 11/28/2022]
Abstract
A nephrometry scoring system is a key standard to evaluate the feasibility of partial nephrectomy (PN). Whether based on two-dimensional or three-dimensional images, simplicity, effectiveness, and practicality are the keys to the nephrometric scoring system. Since the emergence of RENAL score in 2009, numerous scoring systems based on different anatomical parameters are established to seek accurately and few parameters to assess the risk of PN and complications. This study aimed to achieve a three-game winning streak in PN more easily and efficiently (negative resection margin, maximum preservation of normal nephron function, and avoiding short-term and long-term complications). Using PubMed, we counted 28 kinds of nephrometric scoring systems. We considered only English literatures published and excluded editorials, commentaries, and meeting abstracts. To the best of our knowledge, this is to date and most comprehensive summary as well as an outlook of the nephrometric scoring system.
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Affiliation(s)
- Yu Xiao
- The Affiliated Hospital, Kunming University of Science and Technology, Kunming, China; Department of Urology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Zu-Juan Shan
- The Affiliated Hospital, Kunming University of Science and Technology, Kunming, China; Department of Urology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Jun-Feng Yang
- The Affiliated Hospital, Kunming University of Science and Technology, Kunming, China; Department of Urology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Jin-Jun Len
- The Affiliated Hospital, Kunming University of Science and Technology, Kunming, China; Department of Urology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Yan-Hong Yu
- The Affiliated Hospital, Kunming University of Science and Technology, Kunming, China; Department of Urology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China.
| | - Mao-Lin Yang
- The Affiliated Hospital, Kunming University of Science and Technology, Kunming, China; Department of Urology, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
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Su T, Zhang Z, Zhao M, Hao G, Tian Y, Jin L. Percutaneous Microcoil Localization of a Small, Totally Endophytic Renal Mass for Nephron-Sparing Surgery: A Case Report and Literature Review. Front Oncol 2022; 12:916787. [PMID: 35903709 PMCID: PMC9316585 DOI: 10.3389/fonc.2022.916787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 06/01/2022] [Indexed: 11/25/2022] Open
Abstract
Small, totally endophytic renal masses present a technical challenge for surgical extirpation due to poor identifiability during surgery. The method for the precise localization of totally endophytic tumours before nephron-sparing surgery could be optimized. An asymptomatic 70-year-old male presented with a right-sided, 16-mm, totally endophytic renal mass on computed tomography (CT). CT-guided percutaneous microcoil localization was carried out prior to laparoscopy to provide a direction for partial nephrectomy. During the 25 minutes of the localization procedure, the patient underwent five local CT scans, and his cumulative effective radiation dosage was 5.1 mSv. The span between localization and the start of the operation was 15 hours. The laparoscopic operation time was 105 minutes, and the ischaemia time was 25 minutes. The postoperative recovery was smooth, and no perioperative complications occurred. Pathology showed the mass to be renal clear cell carcinoma, WHO/ISUP grade 2, with a 2-mm, clear surgical margin. The patient remained free of recurrence on follow-up for eleven months. To our knowledge, this application of microcoil implantation prior to laparoscopic partial nephrectomy towards an intrarenal mass could be an early reported attempt for the localized method applied in renal surgery. The percutaneous microcoil localization of endophytic renal tumours is potentially safe and effective prior to laparoscopic partial nephrectomy.
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Keranmu A, Wang M, Li Y, Yang F, Wahafu W, Chen D, Liang J, Guan K, Xing N. Feasibility of single position laparoscopic radical nephrectomy and tumor thrombectomy for left renal cell carcinoma with high-risk Mayo grade 0 and 1 tumor thrombus. BMC Urol 2021; 21:181. [PMID: 34937546 PMCID: PMC8693484 DOI: 10.1186/s12894-021-00924-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/08/2021] [Indexed: 11/17/2022] Open
Abstract
Background To explore the feasibility of single-position laparoscopic radical nephrectomy (LRN) and tumor thrombectomy for left renal cell carcinoma with high-risk Mayo 0 and 1 tumor thrombus (TT). Methods All patients with left renal cell carcinoma and venous TT (high-risk Mayo grade 0 and 1) who were performed single-position LRN and tumor thrombectomy were involved. After the renal artery was controlled by Hem-o-lok, the left renal vein was dissected through descending colon mesentery. The left renal vein was divided by EndoGIA for high-risk Mayo grade 0 TT. For Mayo grade 1 TT, part of the inferior vena cava was blocked by a bulldog clamp after milking the TT into the left renal vein and the inferior vena cava was sutured after complete excision of the TT. Results 3 patients were involved and operations were performed successfully without conversion to open surgery. The mean operation time was 136 min and the mean estimated blood loss was 60 mL. No postoperative complications occurred. Conclusions It is feasible to control left renal vein and partial inferior vena cava through descending colon mesentery in a single position during LRN and tumor thrombectomy for the treatment of high-risk Mayo grade 0 and 1 TT.
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A Report of 61 Cases of Retroperitoneal Laparoscopic Nephron-Sparing Surgery and Factors Affecting Postoperative Renal Function. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:2283727. [PMID: 34697545 PMCID: PMC8541846 DOI: 10.1155/2021/2283727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 10/05/2021] [Indexed: 11/17/2022]
Abstract
Objective To explore the situation of 61 patients with renal tumors who underwent retroperitoneal laparoscopic nephron-sparing surgery (RLNSS) and the factors affecting postoperative renal function. Methods A total of 61 patients with renal tumors who underwent RLNSS in our hospital from January 2018 to January 2021 were included in this study. All patients were treated with RLNSS. The clinical data of patients were recorded. Before operation and 3 months after operation, the change value of glomerular filtration rate (ΔGFR) was measured by the Gates method. Multivariate linear regression was used to analyze the related factors affecting postoperative renal function. Results All 61 patients successfully completed the operation. The mean operative time was 60–150 min‚ average (98.75 ± 14.38) min. The estimated intraoperative blood loss was 20–310 ml‚ average (107.93 ± 68.55) ml. Intraoperative warm ischemia time (WIT) was 0–39 min, with an average of (21.16 ± 6.47) min. All patients' pathological margins were negative after operation. In all patients, there were 5 postoperative complications, including 2 cases of renal wound bleeding (3.28%), 1 case of hematuria (1.64%), 1 case of urinary fistula (1.64%), and 1 case of subcutaneous emphysema (1.64%). There were significant differences in tumor diameter, preoperative GFR, operation time and WIT (P < 0.05). Multivariate analysis showed that tumor diameter, preoperative GFR, and WIT were all factors affecting the postoperative renal function of patients with RLNSS (P < 0.05). Conclusion RLNSS has a good curative effect on patients with renal tumor, and tumor diameter, preoperative GFR, and WIT were all factors affecting the postoperative renal function of patients with RLNSS.
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Liu B, Chen X, Zhan Y, Wu B, Pan S. Identification of a Gene Signature for Renal Cell Carcinoma-Associated Fibroblasts Mediating Cancer Progression and Affecting Prognosis. Front Cell Dev Biol 2021; 8:604627. [PMID: 33634098 PMCID: PMC7901886 DOI: 10.3389/fcell.2020.604627] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/31/2020] [Indexed: 12/21/2022] Open
Abstract
Background: Cancer-associated fibroblasts (CAFs) are mainly involved in cancer progression and treatment failure. However, the specific signature of CAFs and their related clinicopathological parameters in renal cell carcinoma (RCC) remain unclear. Here, methods to recognize gene signatures were employed to roughly assess the infiltration of CAFs in RCC, based on the data from The Cancer Genome Atlas (TCGA). Weighted Gene Coexpression Network Analysis (WGCNA) was used to cluster transcriptomes and correlate with CAFs to identify the gene signature. Single-cell and cell line sequencing data were used to verify the expression specificity of the gene signature in CAFs. The gene signature was used to evaluate the infiltration of CAFs in each sample, and the clinical significance of each key gene in the gene signature and CAFs was analyzed. We observed that the CAF infiltration was higher in kidney cancer and advanced tumor stage and grade than in normal tissues. The seven key genes of the CAF gene signature identified using WGCNA showed high expression of CAF-related characteristics in the cell clustering landscape and fibroblast cell lines; these genes were found to be associated with extracellular matrix function, collagen synthesis, cell surface interaction, and adhesion. The high CAF infiltration and the key genes were verified from the TCGA and Gene Expression Omnibus data related to the advanced grade, advanced stage, and poor prognosis of RCC. In summary, our findings indicate that the clinically significant gene signature may serve as a potential biomarker of CAFs in RCC, and the infiltration of CAFs is associated with the pathological grade, stage, and prognosis of RCC.
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Affiliation(s)
- Bitian Liu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiaonan Chen
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yunhong Zhan
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bin Wu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shen Pan
- Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
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