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Xu M, Li P, Wei J, Yan P, Zhang Y, Guo X, Liu C, Yang X. Progress of fluorescence imaging in lymph node dissection surgery for prostate and bladder cancer. Front Oncol 2024; 14:1395284. [PMID: 39429471 PMCID: PMC11486700 DOI: 10.3389/fonc.2024.1395284] [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: 03/05/2024] [Accepted: 09/13/2024] [Indexed: 10/22/2024] Open
Abstract
Fluorescence imaging is a relatively new imaging method used to visualize different tissue structures to help guide intraoperative operations, which has potential advantages with high sensitivity and contrast compared to conventional imaging. In this work, we review fluorescent contrast agents and devices used for lymphatic system imaging. Indocyanine green is the most widely utilized due to its high sensitivity, specificity, low background fluorescence, and safety profile. In prostate and bladder cancer lymph node dissection, the complex lymphatic drainage can result in missed metastatic nodes and extensive dissection increases the risk of complications like lymphocele, presenting a significant challenge for urologists. Fluorescence-guided sentinel lymph node dissection facilitates precise tumor staging. The combination of fluorescence and radiographic imaging improves the accuracy of lymph node staging. Multimodal imaging presents new potential for precisely identifying metastatic pelvic lymph nodes.
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Affiliation(s)
- Mingquan Xu
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, ;China
- First Clinical Medical College, Shanxi Medical University, Taiyuan, ;China
| | - Panpan Li
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, ;China
| | - Jinzheng Wei
- Department of Orthopedics, First Hospital of Shanxi Medical University, Taiyuan, ;China
| | - Pengyu Yan
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, ;China
| | - Yunmeng Zhang
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, ;China
| | - Xinyu Guo
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, ;China
| | - Chao Liu
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, ;China
- First Clinical Medical College, Shanxi Medical University, Taiyuan, ;China
| | - Xiaofeng Yang
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, ;China
- First Clinical Medical College, Shanxi Medical University, Taiyuan, ;China
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Gurwin A, Karwacki J, Dorochowicz M, Kowalczyk K, Nowak Ł, Jędrzejuk D, Krajewski W, Hałoń A, Bolanowski M, Szydełko T, Małkiewicz B. Topography and Lateralization of Nodal Metastases in Muscle-Invasive Bladder Cancer Using Super-Extended Pelvic Lymph Node Dissection with the Sentinel Lymph Node Technique. J Clin Med 2024; 13:5127. [PMID: 39274339 PMCID: PMC11396509 DOI: 10.3390/jcm13175127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 08/26/2024] [Accepted: 08/27/2024] [Indexed: 09/16/2024] Open
Abstract
Background: This study assessed the topography and lateralization of lymph node (LN) metastases in muscle-invasive bladder cancer (MIBC) patients using super-extended pelvic lymph node dissection (sePLND) with sentinel lymph node dissection (SLND). Methods: We analyzed 54 MIBC patients who underwent cystectomy with sePLND and SLND. Tumor location was classified using cystoscopy. Nanocolloid-Tc-99m was injected peritumorally. Preoperative SPECT/CT lymphoscintigraphy and an intraoperative gamma probe were used for SLN detection. Results: A total of 1414 LNs, including 192 SLNs, were resected from 54 patients. Metastases were found in 72 LNs from 22 patients (41%). The obturator fossa was the primary site for LN metastases (37.5%). SLNs were most common in the external iliac region (34.4%). In 36% of the patients with positive LNs, metastases were identified only through sePLND. In 9% of the patients, metastases were found solely in the pararectal region, identified through SLND. Tumor lateralization correlated with ipsilateral positive LNs, but 20% of the patients had contralateral metastases. Conclusions: The pararectal region may be the exclusive site for positive LNs in MIBC. The obturator fossa is the most prevalent region for LN metastases. Unilateral PLND should be avoided due to the risk of contralateral metastases. Combining sePLND with SLND improves staging.
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Affiliation(s)
- Adam Gurwin
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Jakub Karwacki
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Mateusz Dorochowicz
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Kamil Kowalczyk
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Łukasz Nowak
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Diana Jędrzejuk
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Wojciech Krajewski
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Agnieszka Hałoń
- Department of Clinical and Experimental Pathology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Marek Bolanowski
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Tomasz Szydełko
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Bartosz Małkiewicz
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
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Püllen L, Costa PF, Darr C, Hess J, Kesch C, Rehme C, Wahl M, Yirga L, Reis H, Szarvas T, van Leeuwen FWB, Herrmann K, Hadaschik BA, Tschirdewahn S, Krafft U. Near-infrared fluorescence lymph node template region dissection plus backup lymphadenectomy in open radical cystectomy for bladder cancer using an innovative handheld device: A single center experience. J Surg Oncol 2024; 129:1325-1331. [PMID: 38583145 DOI: 10.1002/jso.27618] [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: 01/15/2024] [Accepted: 02/10/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND The extent of pelvic lymphadenectomy (PLND) as part of radical cystectomy (RC) for bladder cancer (BC) remains unclear. Sentinel-based and lymphangiographic approaches could lead to reduced morbidity without sacrificing oncologic safety. OBJECTIVE To evaluate the feasibility and diagnostic value of fluorescence-guided template sentinel region dissection (FTD) using a handheld near-infrared fluorescence (NIRF) camera in open radical cystectomy. DESIGN, SETTING, AND PARTICIPANTS After peritumoral cystoscopic injection of indocyanine green (ICG) 21 patients underwent open RC with FTD due to BC between June 2019 and June 2021. Intraoperatively, the FIS-00 Hamamatsu Photonics® NIRF camera was used to identify and resect fluorescent template sentinel regions (FTRs) followed by extended pelvic lymphadenectomy (ePLND) as oncological back-up. OUTCOME MEASUREMENT AND STATISTICAL ANALYSIS Descriptive analysis of positive and negative results per template region. RESULTS AND LIMITATIONS FTRs were identified in all 21 cases. Median time (range) from ICG injection to fluorescence detection was 75 (55-125) minutes. On average (SD), 33.4 (9.6) lymph nodes were dissected per patient. Considering template regions as the basis of analysis, 67 (38.3%) of 175 resected regions were NIRF-positive, with 13 (7.4%) regions harboring lymph node metastases. We found no metastatic lymph nodes in NIRF-negative template regions. Outside the standard template, two NIRF-positive benign nodes were identified. CONCLUSION The concept of NIRF-guided FTD proved for this group all lymph node metastases to be found in NIRF-positive template regions. Pending validation in a larger collective, resection of approximately 40% of standard regions may be sufficient and may result in less morbidity.
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Affiliation(s)
- Lukas Püllen
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Pedro F Costa
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Nuclear Medicine, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
| | - Christopher Darr
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Jochen Hess
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Claudia Kesch
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Christian Rehme
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Milan Wahl
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Leubet Yirga
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Henning Reis
- Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Tibor Szarvas
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, University Hospital Frankfurt, Frankfurt am Main, Germany
- Department of Urology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Centre, Leiden University, Leiden, Netherlands
| | - Ken Herrmann
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Nuclear Medicine, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
| | - Boris A Hadaschik
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Stephan Tschirdewahn
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Ulrich Krafft
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
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Małkiewicz B, Jędrzejuk D, Gurwin A, Wilk K, Knecht-Gurwin K, Kiełb P, Krajewski W, Bolanowski M, Hałoń A, Szydełko T. Diagnostic Value of the Sentinel Lymph Node Technique in Patients with Muscle-Invasive Bladder Cancer. J Clin Med 2023; 12:jcm12093092. [PMID: 37176533 PMCID: PMC10179622 DOI: 10.3390/jcm12093092] [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: 02/13/2023] [Revised: 04/17/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND The optimal limits of the bilateral pelvic lymph node dissection (PLND) template in bladder cancer treatment remain controversial. This study aimed to investigate whether radio-guided sentinel node (SLN) detection is a reliable technique for the perioperative localisation of potential lymphatic metastasis during cystectomy for muscle-invasive bladder cancer (MIBC). MATERIALS AND METHODS We studied 54 patients with pT2-pT4 MIBC who underwent cystectomy with extended PLND (ePLND) augmented by the SLN technique. The identification of SLN was performed by preoperative SPECT/CT hybrid lymphoscintigraphy using peritumoral injection of nanocolloid-Tc-99m, followed by intraoperative navigation with a handheld γ-probe. All nodal specimens were collected separately and then fixed in formalin, stained with haematoxylin and eosin, and examined by an experienced uropathologist. RESULTS A total of 1414 LNs were resected and examined for the presence of metastases. The mean number of harvested LNs was 26 (range: 11-50) per patient. In 51 of 54 patients, 192 SLNs were resected. In addition, 20/192 (10.4%) SLNs were located outside of the ePLND area. Overall, 72 metastatic LNs (LN+) were found in 22 of 54 patients (40.7%) and in 24/192 SLNs (12.5%). The SLN technique detected LN+ in 14 of 22 (64%) patients. The SLNs were the only sites of metastasis (SLN+ = LN+) in 6 of 22 (27.3%) LN+ patients, including two cases with foci located in the pararectal region. The diagnostic values for the sensitivity, specificity, positive predictive value, and false-negative rate for the SLN technique were 66.66%, 4.16%, 28.57%, and 33.33%, respectively. Extended lymphadenectomy and its combination with the SLN technique enabled the correct assessment in 96.3 and 100% of patients, respectively. CONCLUSIONS The combination of ePLND and SLN provides a better pN assessment compared to ePLND alone. Although the SLN technique has restrictions that limit its diagnostic value, its use as an addition to lymphadenectomy allows for the visualisation of nonstandard lymph drainage pathways that may be potential metastatic routes.
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Affiliation(s)
- Bartosz Małkiewicz
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Diana Jędrzejuk
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Adam Gurwin
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Karol Wilk
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Klaudia Knecht-Gurwin
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, 50-368 Wroclaw, Poland
| | - Paweł Kiełb
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Wojciech Krajewski
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Marek Bolanowski
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Agnieszka Hałoń
- Department of Clinical and Experimental Pathology, Wrocław Medical University, 50-556 Wrocław, Poland
| | - Tomasz Szydełko
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
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Rietbergen DD, van Gennep EJ, KleinJan GH, Donswijk M, Valdés Olmos RA, van Rhijn BW, van der Poel HG, van Leeuwen FW. Evaluation of the Hybrid Tracer Indocyanine Green- 99m Tc-Nanocolloid for Sentinel Node Biopsy in Bladder Cancer-A Prospective Pilot Study. Clin Nucl Med 2022; 47:774-780. [PMID: 35713891 PMCID: PMC9351699 DOI: 10.1097/rlu.0000000000004301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/05/2022] [Accepted: 05/05/2022] [Indexed: 11/26/2022]
Abstract
RATIONALE In muscle-invasive bladder cancer (MIBC), lymph node invasion has proven to be an independent predictor of disease recurrence and cancer-specific survival. We evaluated the feasibility of targeting the sentinel node (SN) for biopsy in MIBC patients using the hybrid tracer indocyanine green (ICG)- 99m Tc-nanocolloid for simultaneous radioguidance and fluorescence guidance. METHODS Twenty histologically confirmed cN0M0 MIBC patients (mean age, 63.3 years; range, 30-82 years), scheduled for radical cystectomy with SN biopsy and extended pelvic lymph node dissection (ePLND), were prospectively included. Twelve patients were operated on following neoadjuvant chemotherapy. The patients received lymphoscintigraphy as well as SPECT/CT after 4 transurethral injections of ICG- 99m Tc-nanocolloid (mean, 208 MBq; range, 172-229 MBq) around the tumor/scar in the detrusor muscle of the bladder on the day before radical cystectomy. Sentinel node resection was performed under radioguidance and fluorescence guidance. RESULTS Nineteen patients could be analyzed. On preoperative imaging, SNs could be identified in 10 patients (53%; mean, 1.6 SN/patient), which revealed drainage pathways outside the ePLND in 20% of the patients. Interesting to note is that 2 patients (10%) with preoperative nonvisualization displayed fluorescent and radioactive SNs during surgery. Location of the primary tumor near the left lateral side of the bladder seemed to be a factor for nonvisualization. Nodal harvesting with ePLND varied among patients (mean, 23.3). Histopathology confirmed tumor-positive nodes in 4 (21%) of all patients. In the 2 patients where an SN could be identified, the ePLND specimens were tumor-negative. All patients with tumor-positive nodes had advanced disease (stage III). CONCLUSION Sentinel node biopsy in bladder cancer using the hybrid tracer ICG- 99m Tc-nanocolloid is feasible, and preoperative imaging is predictive for the ability to perform SN biopsy in 83% of the patients who displayed an SN. In patients with a successful preoperative SN mapping using lymphoscintigraphy and SPECT/CT, the intraoperative SN guidance and detection were effective, even outside the ePLND area. As such, this study underscores the critical role that preoperative imaging plays in challenging image-guided surgery applications.
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Affiliation(s)
- Daphne D.D. Rietbergen
- From the Interventional Molecular Imaging Laboratory, Department of Radiology
- Nuclear Medicine Section, Department of Radiology
| | | | | | | | - Renato A. Valdés Olmos
- From the Interventional Molecular Imaging Laboratory, Department of Radiology
- Nuclear Medicine Section, Department of Radiology
| | | | | | - Fijs W.B. van Leeuwen
- From the Interventional Molecular Imaging Laboratory, Department of Radiology
- Department of Urology, Leiden University Medical Center, Leiden
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Małkiewicz B, Kiełb P, Gurwin A, Knecht K, Wilk K, Dobruch J, Zdrojowy R. The Usefulness of Lymphadenectomy in Bladder Cancer-Current Status. ACTA ACUST UNITED AC 2021; 57:medicina57050415. [PMID: 33922894 PMCID: PMC8145304 DOI: 10.3390/medicina57050415] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/19/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022]
Abstract
The purpose of this review is to present the current status of lymph node dissection (LND) during radical cystectomy in patients with bladder cancer (BCa). Despite the growing body of evidence of LND utility at the time of radical cystectomy (RC) in high-risk nonmuscle-invasive and muscle-invasive BCa (MIBC), therapeutic and prognostic value and optimal extent of LND remain unsolved issues. Recently published results of the first prospective, a randomized trial assessing the therapeutic benefit of extended versus limited LND during RC, failed to demonstrate survival improvement with the extended template. Although LND is the most accurate staging procedure, the direct therapeutic effect is still not evident from the current literature, limiting the possibility of establishing clear recommendations. This indicates the need for robust and adequately powered clinical trials.
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Affiliation(s)
- Bartosz Małkiewicz
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
- Correspondence: ; Tel.: +48-506-158-136
| | - Paweł Kiełb
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Adam Gurwin
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Klaudia Knecht
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Karol Wilk
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Jakub Dobruch
- First Department of Urology, Centre of Postgraduate Medical Education, 01-813 Warsaw, Poland;
| | - Romuald Zdrojowy
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
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Packiam VT, Tsivian M, Boorjian SA. The evolving role of lymphadenectomy for bladder cancer: why, when, and how. Transl Androl Urol 2020; 9:3082-3093. [PMID: 33457281 PMCID: PMC7807370 DOI: 10.21037/tau.2019.06.01] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Radical cystectomy (RC) represents a standard treatment for non-metastatic muscle-invasive and select high-risk non-muscle invasive bladder cancer. Lymphadenectomy performed at time of RC identifies nodal metastases in up to 25% of patients despite normal imaging. There has been an increasing utilization of pelvic lymph node dissection (PLND) with RC since 1950, and in fact lymph node dissection is now recommended in contemporary National Comprehensive Cancer Network (NCCN) guidelines. Benefits of removing of nodal disease include improved staging, guidance for adjuvant treatment, and potentially improved oncologic outcomes. Advantages of dissection have been suggested among both node-negative and node-positive patients. Numerous studies have attempted to define the optimal dissection characteristics of lymphadenectomy with regard to nodal yield and anatomic boundaries of dissection. The ideal extent of lymphadenectomy remains uncertain due to the retrospective and non-randomized nature of the majority of existing reports, which are thereby limited by significant confounding and selection bias. Two randomized controlled trials have investigated this issue, one of which LEA AUO AB 25/02 recently reported its outcomes, demonstrating no significant improvement in 5-year outcomes with an extended dissection. Meanwhile, the Southwest Oncology Group 1011 trial has completed enrollment and data are maturing. While current data preclude definitive recommendations, herein we review the why, when, and how to perform a PLND for bladder cancer.
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Krantz D, Mints M, Winerdal M, Riklund K, Rutishauser D, Zubarev R, Zirakhzadeh AA, Alamdari F, Johansson M, Sherif A, Winqvist O. IL-16 processing in sentinel node regulatory T cells is a factor in bladder cancer immunity. Scand J Immunol 2020; 92:e12926. [PMID: 32862475 DOI: 10.1111/sji.12926] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 06/18/2020] [Accepted: 06/27/2020] [Indexed: 11/30/2022]
Abstract
In the effort of developing new immunotherapies, the sentinel node (SN) has proven a promising source from which to harness an effective antitumour T cell response. However, tumour immune escape, a process in which regulatory T cells (Tregs) play a central role, remains a major limiting factor. Therefore, there is a clear need to increase the knowledge of Treg function and signalling in sentinel nodes. Here, we set out to explore whether the proteome in SN-resident T cells is altered by the tumour and to identify key proteins in SN T cell signalling, focusing on Tregs. Five patients with muscle-invasive urothelial bladder cancer were prospectively included. Mass spectrometry was performed on two patients, with validation and functional studies being performed on three additional patients and four healthy donors. At cystectomy, SN, non-SN lymph nodes and peripheral blood samples were collected from the patients and T cell subsets isolated through flow cytometry before downstream experiments. Proteomic analysis indicated that growth and immune signalling pathways are upregulated in SN-resident Tregs. Furthermore, centrality analysis identified the cytokine IL-16 to be central in the SN-Treg signalling network. We show that tumour-released factors, through activating caspase-3, increase Treg IL-16 processing into bioactive forms, reinforcing Treg suppressive capacity. In conclusion, we provide evidence that Tregs exposed to secreted factors from bladder tumours show increased immune and growth signalling and altered IL-16 processing which translates to enhanced Treg suppressive function, indicating altered IL-16 signalling as a novel tumour immune escape mechanism.
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Affiliation(s)
- David Krantz
- Department of Haematology, Karolinska University Hospital, Stockholm, Sweden
| | - Michael Mints
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden
| | - Malin Winerdal
- Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Katrine Riklund
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Dorothea Rutishauser
- Department of Medical Biochemistry and Biophysics, Karolinska Institute and University Hospital, Stockholm, Sweden.,Science for Life Laboratory, Stockholm, Sweden
| | - Roman Zubarev
- Department of Medical Biochemistry and Biophysics, Karolinska Institute and University Hospital, Stockholm, Sweden.,Science for Life Laboratory, Stockholm, Sweden
| | - Amir Ali Zirakhzadeh
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden
| | | | - Markus Johansson
- Department of Surgery and Urology, Sundsvall Hospital, Sundsvall, Sweden
| | - Amir Sherif
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden
| | - Ola Winqvist
- Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
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9
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Alvaeus J, Rosenblatt R, Johansson M, Alamdari F, Jakubczyk T, Holmström B, Hemdan T, Huge Y, Aljabery F, Gabrielsson S, Riklund K, Winqvist O, Sherif A. Fewer tumour draining sentinel nodes in patients with progressing muscle invasive bladder cancer, after neoadjuvant chemotherapy and radical cystectomy. World J Urol 2019; 38:2207-2213. [PMID: 31760442 PMCID: PMC7423786 DOI: 10.1007/s00345-019-03025-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 11/15/2019] [Indexed: 11/30/2022] Open
Abstract
Purpose To examine the relationship between the number of tumour draining sentinel nodes (SNs) and pathoanatomical outcomes, in muscle-invasive bladder cancer (MIBC), in patients undergoing neoadjuvant chemotherapy (NAC) and radical cystectomy (RC). Materials and Methods In an ongoing prospective multicenter study, we included 230 patients with suspected urothelial MIBC from ten Swedish urological centers. All underwent TURb and clinical staging. From the cohort, 116 patients with urothelial MIBC; cT2-cT4aN0M0, underwent radical cystectomy (RC) and lymphadenectomy with SN-detection (SNd). 83 patients received cisplatin-based NAC and 33 were NAC-naïve. The number and locations of detected SNs and non-SNs were recorded for each patient. The NAC treated patients were categorized by pathoanatomical outcomes post-RC into three groups: complete responders (CR), stable disease (SD) and progressive disease (PD). Selected covariates with possible impact on SN-yield were tested in uni -and multivariate analyses for NAC-treated patients only. Results In NAC treated patients, the mean number of SNs was significantly higher in CR patients (3.3) and SD patients (3.6) compared with PD patients (1.4) (p = 0.034). In a linear multivariate regression model, the number of harvested nodes was the only independent variable that affected the number of SNs (p = 0.0004). Conclusions The number of tumor-draining SNs in NAC-treated patients was significantly lower in patients with progressive disease.
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Affiliation(s)
- Julia Alvaeus
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, 901 85, Umeå, Sweden
| | - Robert Rosenblatt
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, 901 85, Umeå, Sweden.,Department of UrologyKarolinska Institutet, Stockholm South General Hospital, Stockholm, Sweden
| | - Markus Johansson
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, 901 85, Umeå, Sweden.,Department of Urology, Sundsvall Hospital, Sundsvall, Sweden
| | | | | | - Benny Holmström
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Tammer Hemdan
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Ylva Huge
- Division of Urology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Firas Aljabery
- Division of Urology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Susanne Gabrielsson
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Katrine Riklund
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Ola Winqvist
- Department of Clinical Immunology, Karolinska University Hospital, Stockholm, Sweden
| | - Amir Sherif
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, 901 85, Umeå, Sweden.
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10
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Hartana CA, Ahlén Bergman E, Broomé A, Berglund S, Johansson M, Alamdari F, Jakubczyk T, Huge Y, Aljabery F, Palmqvist K, Holmström B, Glise H, Riklund K, Sherif A, Winqvist O. Tissue-resident memory T cells are epigenetically cytotoxic with signs of exhaustion in human urinary bladder cancer. Clin Exp Immunol 2018; 194:39-53. [PMID: 30009527 PMCID: PMC6156818 DOI: 10.1111/cei.13183] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2018] [Indexed: 12/26/2022] Open
Abstract
Tissue‐resident memory T (TRM) cells are CD8+ T lymphocytes that reside in the tissues, including tumours. This T cell subset possesses a magnitude of cytotoxicity, but its epigenetic regulation has not been studied. Here, we investigate the impact of perforin DNA methylation in TRM cells and correlate it with their functional potential. Fifty‐three urothelial urinary bladder cancer (UBC) patients were recruited prospectively. The DNA methylation status of the perforin gene (PRF1) locus in TRM cells was investigated by pyrosequencing. Flow cytometry with ViSNE analysis and in‐vitro stimulation were used to evaluate TRM cell phenotypes. We discovered that tumour TRM cells have low DNA methylation in the PRF1 locus (32·9% methylation), which corresponds to increased numbers of perforin‐expressing TRM cells. Surprisingly, programmed cell death 1 (PD‐1) expression is high in tumour TRM cells, suggesting exhaustion. Following interleukin‐15 and T cell receptor stimulation, perforin and T‐bet expressions are enhanced, indicating that TRM cells from tumours are not terminally exhausted. Moreover, a high number of TRM cells infiltrating the tumours corresponds to lower tumour stage in patients. In conclusion, TRM cells from UBC tumours are epigenetically cytotoxic with signs of exhaustion. This finding identifies TRM cells as potential new targets for cancer immunotherapy.
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Affiliation(s)
- C A Hartana
- Karolinska Institutet, Department of Medicine Solna, Unit of Immunology and Allergy, Stockholm, Sweden
| | - E Ahlén Bergman
- Karolinska Institutet, Department of Medicine Solna, Unit of Immunology and Allergy, Stockholm, Sweden
| | - A Broomé
- Karolinska Institutet, Department of Medicine Solna, Unit of Immunology and Allergy, Stockholm, Sweden
| | - S Berglund
- Karolinska Institutet, Department of Medicine Solna, Unit of Immunology and Allergy, Stockholm, Sweden
| | - M Johansson
- Department of Urology, Sundsvall Hospital, Sundsvall, Sweden
| | - F Alamdari
- Department of Urology, Västmanland Hospital, Västerås, Sweden
| | - T Jakubczyk
- Department of Urology, Länssjukhuset Ryhov, Jönköping, Sweden
| | - Y Huge
- Department of Clinical and Experimental Medicine, Division of Urology, Linköping University, Linköping, Sweden
| | - F Aljabery
- Department of Clinical and Experimental Medicine, Division of Urology, Linköping University, Linköping, Sweden
| | - K Palmqvist
- Department of Surgery, Östersund County Hospital, Urology section, Östersund, Sweden
| | - B Holmström
- Department of Urology, Akademiska University Hospital, Uppsala, Sweden
| | - H Glise
- Karolinska Institutet, Department of Medicine Solna, Unit of Immunology and Allergy, Stockholm, Sweden
| | - K Riklund
- Department of Radiation Sciences, Diagnostic Radiology, Umeå University, Umeå, Sweden
| | - A Sherif
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden
| | - O Winqvist
- Karolinska Institutet, Department of Medicine Solna, Unit of Immunology and Allergy, Stockholm, Sweden
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11
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Urothelial bladder cancer may suppress perforin expression in CD8+ T cells by an ICAM-1/TGFβ2 mediated pathway. PLoS One 2018; 13:e0200079. [PMID: 29966014 PMCID: PMC6028111 DOI: 10.1371/journal.pone.0200079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 06/19/2018] [Indexed: 12/15/2022] Open
Abstract
The immune system plays a significant role in urothelial bladder cancer (UBC) progression, with CD8+ T cells being capable to directly kill tumor cells using perforin and granzymes. However, tumors avoid immune recognition by escape mechanisms. In this study, we aim to demonstrate tumor immune escape mechanisms that suppress CD8+ T cells cytotoxicity. 42 patients diagnosed with UBC were recruited. CD8+ T cells from peripheral blood (PB), sentinel nodes (SN), and tumor were analyzed in steady state and in vitro-stimulated conditions by flow cytometry, RT-qPCR, and ELISA. Mass spectrometry (MS) was used for identification of proteins from UBC cell line culture supernatants. Perforin was surprisingly found to be low in CD8+ T cells from SN, marked by 1.8-fold decrease of PRF1 expression, with maintained expression of granzyme B. The majority of perforin-deficient CD8+ T cells are effector memory T (TEM) cells with exhausted Tc2 cell phenotype, judged by the presence of PD-1 and GATA-3. Consequently, perforin-deficient CD8+ T cells from SN are low in T-bet expression. Supernatant from muscle invasive UBC induces perforin deficiency, a mechanism identified by MS where ICAM-1 and TGFβ2 signaling were causatively validated to decrease perforin expression in vitro. Thus, we demonstrate a novel tumor escape suppressing perforin expression in CD8+ T cells mediated by ICAM-1 and TGFβ2, which can be targeted in combination for cancer immunotherapy.
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