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Taylor RJ, Matthews GJ, Aseltine RH, Fields EC. Clinical outcomes in borderline and locally advanced pancreatic cancer with the addition of low-dose-rate brachytherapy to standard of care therapy. Brachytherapy 2024; 23:355-359. [PMID: 38402046 DOI: 10.1016/j.brachy.2024.01.008] [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: 07/20/2023] [Revised: 01/16/2024] [Accepted: 01/25/2024] [Indexed: 02/26/2024]
Abstract
PURPOSE Surgical resection remains the only curative therapy for pancreatic cancer. Unfortunately, many patients have borderline or unresectable disease at diagnosis due to proximity of major abdominal vessels. Neoadjuvant chemotherapy and radiation are used to down-stage, however, there is a risk that there will be a positive/close surgical margin. The CivaSheet is a low-dose-rate (LDR) brachytherapy device placed at the time of surgery to target the area of highest risk of margin positivity. The purpose of this study is to assess the clinical value of brachytherapy in addition to standard-of-care therapy in pancreatic therapy. METHODS AND MATERIALS Between 2017 and 2022 patients with borderline and locally advanced pancreatic cancer treated with neoadjuvant chemotherapy and radiation followed by surgical resection were included. There were 2 cohorts of patients: (1) Those who had the LDR brachytherapy device placed at the time of surgery and (2) those who did not. Sixteen of 19 (84%) patients who had brachytherapy were enrolled in a prospective clinical trial (NCT02843945). Patients were matched for comorbidities, cancer staging, and treatment details. The primary outcome was progression-free survival (PFS). RESULTS Thirty-five patients were included in this analysis, 19 in the LDR brachytherapy group and 16 in the comparison cohort. The 2-year PFS was 21% vs. 0% (p = 0.11), 2-year OS was 26% vs. 13% (p = 0.43), and the pancreatic cancer cause-specific survival was 84% vs. 56% (p = 0.13) in favor of the brachytherapy patients. CONCLUSIONS Use of LDR brachytherapy at the time of resection shows a trend towards improved progression free and overall survival for patients with borderline or locally advanced pancreatic cancer treated with neoadjuvant chemoradiation.
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Affiliation(s)
- Ross J Taylor
- Department of Radiation Oncology, Massey Cancer Center, Virginia Commonwealth University Health System, Richmond, VA
| | - Gregory J Matthews
- Department of Mathematics and Statistics, Loyola University, Chicago, IL
| | - Robert H Aseltine
- Division of Behavioral Sciences and Community Health, UConn Health, CT
| | - Emma C Fields
- Department of Radiation Oncology, Massey Cancer Center, Virginia Commonwealth University Health System, Richmond, VA.
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2
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Xue K, Huang X, Zhao P, Zhang Y, Tian B. Perioperative and long-term survival outcomes of pancreatectomy with arterial resection in borderline resectable or locally advanced pancreatic cancer following neoadjuvant therapy: a systematic review and meta-analysis. Int J Surg 2023; 109:4309-4321. [PMID: 38259002 PMCID: PMC10720779 DOI: 10.1097/js9.0000000000000742] [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: 06/14/2023] [Accepted: 08/23/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Pancreatic cancer frequently involves the surrounding major arteries, preventing surgeons from making a radical excision. Neoadjuvant therapy (NAT) can lessen the size of local tumors and eliminate potential micrommetastases. However, systematic and evidence-based recommendations for the treatment of arterial resection (AR) after NAT in pancreatic cancer are scarce. METHOD A computerized search of the Medline, Embase, Cochrane Library databases, and Clinicaltrials was performed to identify studies reporting the outcomes of patients who underwent pancreatectomy with AR and NAT for pancreatic cancer. Studies that reported perioperative and/or long-term results after pancreatectomy with AR and NAT were eligible for inclusion. The quality of the evidence was assessed with Newcastle-Ottawa Quality Assessment Form of bias tool. Data were pooled and analyzed by Stata 14.0 software. RESULT Nine studies with an overall sample size of 215 met our eligibility criteria and were included in the meta-analysis. All studies were retrospective studies, and the methodological quality was moderate. The pooled morbidity and mortality rates were 51% (95% CI: 41-61%; I²= 0.0%) and 2% (95% CI: 0-0.08; I²=33.3%), respectively. Meta-analysis showed that the overall R0 resection rate was 79% (CI: 70-86%, I²=15.5%). Comparative data on R0 rates of patients who underwent pancreatectomy with and without NAT showed a significant difference in favor of the former group with moderate statistical heterogeneity (Relative risk=1.21; 95% CI: 0.776-1.915; I²=48.0%). The median 1-, 2-, 3-, and 5-year survival rates of patients who had AR were 92.3% (range: 72.7-100%), 64.8% (range: 25-78.8%), 51.6% (range: 16.7-63.6%), and 14% (range: 0-41.1%), respectively. Data on median progression-free survival ranged from 5.25 to 36.3 months, and the median overall survival ranged from 17 to 44.9 months. CONCLUSIONS Pancreatectomy with major AR following NAT has the potential to enhance the survival rate of patients with unresectable pancreatic cancer involving the arteries by achieving R0 resection, despite a significant risk of postoperative complications. However, to validate the feasibility and effectiveness of this procedure, prospective controlled studies are necessary to address limitations arising from small sample sizes and potential biases inherent in retrospective studies.
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Affiliation(s)
| | | | | | - Yi Zhang
- Department of General Surgery, Division of Pancreatic Surgery, West China Hospital, Sichuan University, People’s Republic of China
| | - Bole Tian
- Department of General Surgery, Division of Pancreatic Surgery, West China Hospital, Sichuan University, People’s Republic of China
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PETREA SORIN, BACALBASA NICOLAE, BALESCU IRINA, DIACONU CAMELIA, STIRU OVIDIU, CAUNI VICTOR. Pancreatoduodenectomy En Bloc With Superior Mesenteric Artery Resection for Borderline Resectable Pancreatic Cancer - A Case Report and Literature Review. CANCER DIAGNOSIS & PROGNOSIS 2023; 3:135-138. [PMID: 36632596 PMCID: PMC9801448 DOI: 10.21873/cdp.10191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 10/12/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND/AIM Pancreatic head adenocarcinoma represents the most aggressive digestive malignancy, which affects patients worldwide and is associated with poor outcomes especially due to the fact that most cases are diagnosed when local vascular invasion is already present. CASE REPORT This is a case report of a 44-year-old patient diagnosed with a borderline resectable pancreatic head adenocarcinoma invading the superior mesenteric artery. The patient was submitted to surgery, and intraoperatively the mesenteric artery invasion was found. A pancreatoduodenectomy en bloc with superior mesenteric artery resection was performed while the continuity of the arterial structure was re-established by placing a cadaveric graft. CONCLUSION In selected cases, extended arterial resections might be needed in order to achieve negative resection margins and therefore, to improve the chances of long-term survival.
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Affiliation(s)
- SORIN PETREA
- Department of Visceral Surgery, “Dr. I. Cantacuzino” Clinical Hospital, Bucharest, Romania
| | - NICOLAE BACALBASA
- Department of Visceral Surgery, Center of Excellence in Translational Medicine “Fundeni” Clinical Institute, Bucharest, Romania,Department of Obstetrics and Gynecology, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
| | - IRINA BALESCU
- Department of Surgery, “Ponderas” Academic Hospital, Bucharest, Romania
| | - CAMELIA DIACONU
- Department of Internal Medicine, “Floreasca” Clinical Emergency Hospital, Bucharest, Romania,Department of Internal Medicine “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
| | - OVIDIU STIRU
- Emergency Institute for Cardiovascular Diseases “Prof. Dr. C. C. Iliescu”, Bucharest, Romania,Department of Cardiovascular Surgery, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania
| | - VICTOR CAUNI
- Department of Urology, “Colentina” Clinical Hospital, Bucharest, Romania
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4
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de Almeida DRQ, Dos Santos AF, Wailemann RAM, Terra LF, Gomes VM, Arini GS, Bertoldi ERM, Reis EM, Baptista MS, Labriola L. Necroptosis activation is associated with greater methylene blue-photodynamic therapy-induced cytotoxicity in human pancreatic ductal adenocarcinoma cells. Photochem Photobiol Sci 2022; 22:729-744. [PMID: 36495407 DOI: 10.1007/s43630-022-00347-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022]
Abstract
Pancreatic ductal adenocarcinomas (PDAC) are the fourth leading cause of death due to neoplasms. In view of the urgent need of effective treatments for PDAC, photodynamic therapy (PDT) appears as a promising alternative. However, its efficacy against PDAC and the mechanisms involved in cell death induction remain unclear. In this study, we set out to evaluate PDT's cytotoxicity using methylene blue (MB) as a photosensitizer (PS) (MB-PDT) and to evaluate the contribution of necroptosis in its effect in human PDAC cells. Our results demonstrated that MB-PDT induced significant death of different human PDAC models presenting two different susceptibility profiles. This effect was independent of MB uptake or its subcellular localization. We found that the ability of triggering necroptosis was determinant to increase the treatment efficiency. Analysis of single cell RNA-seq data from normal and neoplastic human pancreatic tissues showed that specific necroptosis proteins RIPK1, RIPK3 and MLKL presented significant higher expression levels in cells displaying a transformed phenotype providing further support to the use of approaches that activate necroptosis, like MB-PDT, as useful adjunct to surgery of PDAC to tackle the problem of microscopic residual disease as well as to minimize the chance of local and metastatic recurrence.
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Affiliation(s)
- Daria R Q de Almeida
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Ancély F Dos Santos
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Rosangela A M Wailemann
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Letícia F Terra
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Vinícius M Gomes
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Gabriel S Arini
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Ester R M Bertoldi
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Eduardo M Reis
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil
| | - Maurício S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil.
| | - Leticia Labriola
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Cidade Universitária, Block 09, Room 976, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, Brazil.
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Melucci AD, Chacon AC, Burchard PR, Tsagkalidis V, Casabianca AS, Goyal S, Switchenko JM, Kooby DA, Staley CA, Carpizo DR, Shah MM. The Impact of Carbohydrate Antigen 19-9 on Survival in Patients with Clinical Stage I and II Pancreatic Cancer. Ann Surg Oncol 2022; 29:8536-8547. [PMID: 36121582 PMCID: PMC9879696 DOI: 10.1245/s10434-022-12497-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 08/17/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Carbohydrate antigen (CA) 19-9 is a biomarker to monitor treatment effect. A threshold to predict prognostic significance remains undefined. We evaluated the impact of CA19-9 on overall survival (OS) in patients with early-stage pancreatic cancer (PC) utilizing the National Cancer Database (NCDB). METHODS The NCDB was queried from 2010 to 2014 to identify patients with clinical stage I-II PC. Patients who had undocumented pretreatment CA19-9 were excluded. Patients were stratified into two cohorts: CA19-9 < 98 U/mL and CA19-9 ≥ 98 U/mL, and further categorized into surgery versus no surgery. Twelve- and 24-month OS rates are reported. RESULTS Overall, 32,382 patients (stage I: 12,173; stage II: 20,209) were included. The majority of stage I (52.1%) and II (60%) patients had CA19-9 ≥ 98 U/mL. Stage I-II patients with CA19-9 < 98 U/mL had improved OS rates (stage I: 67.5%, 42.6%; stage II: 59.8%, 32.8%) compared with stage I and II patients with CA19-9 ≥ 98 U/mL (stage I: 50.7%, 26.9%; stage II: 48.1%, 22%). Among resected stage I patients, CA19-9 <98 U/mL was associated with improved OS (< 98: 80.5%, 56%; ≥ 98: 70.2%, 42.8%), and a similar trend was seen in resected stage II patients (< 98: 77.6%, 49.9%; ≥ 98: 71%, 39.2%). Unresected stage I patients with lower CA19-9 had improved OS (< 98: 42.1%, 17.5; ≥ 98: 29.9%, 10%), with similar findings in unresected stage II patients (< 98: 41.1%, 15.3%; ≥ 98: 33.4%, 10.6%). CONCLUSIONS Our study demonstrated the prognostic value of CA19-9 in patients with clinical stage I-II PC, with a value < 98 U/mL demonstrating improved survival. Surgery significantly improved survival at 12 and 24 months irrespective of CA19-9.
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Affiliation(s)
| | | | | | | | | | - Subir Goyal
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Jeffrey M. Switchenko
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA
| | - David A. Kooby
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA
| | - Charles A. Staley
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA
| | - Darren R. Carpizo
- Department of Surgery, University of Rochester, Rochester, NY,Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY
| | - Mihir M. Shah
- Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, GA
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Taylor RJ, Todor D, Kaplan BJ, Stover W, Fields EC. CivaSheet intraoperative radiation therapy for pancreatic cancer. Brachytherapy 2022; 21:255-259. [DOI: 10.1016/j.brachy.2021.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/14/2021] [Accepted: 10/25/2021] [Indexed: 11/02/2022]
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7
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Maloney S, Itchins M, Arena J, Sahni S, Howell VM, Hayes SA, Gill AJ, Clarke SJ, Samra J, Mittal A, Pavlakis N. Optimal Upfront Treatment in Surgically Resectable Pancreatic Cancer Candidates: A High-Volume Center Retrospective Analysis. J Clin Med 2021; 10:2700. [PMID: 34207372 PMCID: PMC8235361 DOI: 10.3390/jcm10122700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 12/17/2022] Open
Abstract
Pancreatic adenocarcinoma is a devastating disease with only 15-20% of patients resectable at diagnosis. Neoadjuvant chemotherapy for this cohort is becoming increasingly popular; however, there are no published randomized trials that support the use of neoadjuvant chemotherapy over upfront surgery in resectable disease. This retrospective cohort analysis was conducted to compare both treatment pathways and to identify any potential prognostic markers. Medical records from one large volume pancreatic cancer center from 2013-2019 were reviewed and 126 patients with upfront resectable disease were analyzed. Due to a change in practice in our center patients treated prior to December 2016 received upfront surgery and those treated after this date received neoadjuvant chemotherapy. Of these, 86 (68%) patients were treated with upfront surgery and 40 (32%) of patients were treated with neoadjuvant chemotherapy. Our results demonstrated that patients treated with upfront surgery with early-stage (1a) disease had a longer median OS compared to those treated with neoadjuvant chemotherapy (24 vs. 21 months, p = 0.028). This survival difference was not evident for all patients (regardless of stage). R0 resections were similar between groups (p = 0.605). We identified that both tumor viability (in neoadjuvant chemotherapy-treated patients) and tumor grade were useful prognostic markers. Upfront surgery for certain patients with low volume disease may be suitable despite the global trend towards neoadjuvant chemotherapy for all upfront resectable patients. A prospective clinical trial in this cohort incorporating biomarkers is needed to determine optimal therapy pathway.
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Affiliation(s)
- Sarah Maloney
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
| | - Malinda Itchins
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
| | - Jennifer Arena
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
- Upper Gastrointestinal Surgical Unit, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
| | - Sumit Sahni
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
| | - Viive M. Howell
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
| | - Sarah A. Hayes
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
| | - Anthony J. Gill
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Cancer Diagnosis and Pathology Group, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
- NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
| | - Stephen J. Clarke
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
| | - Jaswinder Samra
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
- Upper Gastrointestinal Surgical Unit, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
| | - Anubhav Mittal
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
- Upper Gastrointestinal Surgical Unit, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
| | - Nick Pavlakis
- Faculty of Medicine and Health Sciences, Northern Clinical School, The University of Sydney, Sydney, NSW 2065, Australia; (M.I.); (J.A.); (S.S.); (V.M.H.); (S.A.H.); (A.J.G.); (S.J.C.); (J.S.); (A.M.); (N.P.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, The University of Sydney, Sydney, NSW 2065, Australia
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, Sydney, NSW 2065, Australia
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Chung HY, Hsu CC, Hung YL, Chen HW, Wong MS, Fu CY, Tsai CY, Chen MY, Wang SY, Hsu JT, Yeh TS, Yeh CN, Jan YY. Alternative application of percutaneous cholecystostomy in patients with biliary obstruction. Abdom Radiol (NY) 2021; 46:2891-2899. [PMID: 33388808 DOI: 10.1007/s00261-020-02898-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/28/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE Percutaneous cholecystostomy (PC) is an important modality for acute cholecystitis and has been applied for other clinical scenarios as well. In the present study, we aimed to investigate an alternative use of PC for obstructive jaundice. METHODS From January 2012 to December 2018, eligible subjects were selected from patients undergoing PC in our institute. The characteristics, spectrum of underlying disease, indication for PC performance, details of the procedure, and treatment effect were all investigated. RESULTS During the study period, 1364 patients underwent PC. Seventy patients fulfilled the defined inclusion criteria. While 47 patients were diagnosed with malignant biliary obstruction with or without cholangitis, 23 patients were diagnosed with nonmalignant biliary obstruction and acute cholangitis. There were 63 patients (90%) diagnosed with acute cholangitis. Pancreatic cancer (n = 24, 51%) and advanced malignancy (n = 28, 59%) were noted mostly in the group with malignant biliary obstruction. Treatment effects were proven by laboratory data, including the white blood cell count, C-reactive protein level, and hepatic function. CONCLUSION PC can temporize definitive therapies and serve as an alternative treatment for patients with nonmalignant conditions. For patients with advanced malignancy, PC can serve as a palliative procedure that has a high success rate and low complication rate and effectively relieves biliary obstruction.
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Affiliation(s)
- Hung-Yu Chung
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Chih-Chieh Hsu
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Yu-Liang Hung
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Huan-Wu Chen
- Division of Emergency and Critical Care Radiology, Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Man Si Wong
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Chih-Yuan Fu
- Division of Trauma and Emergency Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Chun-Yi Tsai
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Ming-Yang Chen
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
| | - Shang-Yu Wang
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan.
- School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan, 333, Taiwan.
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan, 333, Taiwan.
| | - Jun-Te Hsu
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
- School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan, 333, Taiwan
| | - Ta-Sen Yeh
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
- School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan, 333, Taiwan
| | - Chun-Nan Yeh
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
- School of Medicine, Chang Gung University, No. 259, Wenhua 1st Rd., Guishan Dist., Taoyuan, 333, Taiwan
| | - Yi-Yin Jan
- Division of General Surgery, Chang Gung Memorial Hospital, No. 5, Fuxing St., Guishan Dist., Taoyuan, 333, Taiwan
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Hull A, Li Y, Bartholomeusz D, Hsieh W, Escarbe S, Ruszkiewicz A, Bezak E. The Expression Profile and Textural Characteristics of C595-Reactive MUC1 in Pancreatic Ductal Adenocarcinoma for Targeted Radionuclide Therapy. Cancers (Basel) 2020; 13:cancers13010061. [PMID: 33379259 PMCID: PMC7796161 DOI: 10.3390/cancers13010061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 01/11/2023] Open
Abstract
Simple Summary Pancreatic ductal adenocarcinoma (PDAC) is a cancer of low survival needing novel treatment approaches such as targeted therapies. If a target is overexpressed on PDAC cells but has minimal expression on normal cells, it is considered a good candidate for targeted therapy. Identifying targets with this expression pattern can help to optimise targeted therapies to be therapeutically effective without compromising on tolerability. The aim of this study was to assess the expression of the MUC1 receptor using the C595 antibody. We performed a series of cell line and tissue studies to identify if the expression of the MUC1 receptor changes between different pancreatic pathologies, including PDAC and normal pancreatic tissue. We found that the MUC1 receptor is both overexpressed and more uniformly expressed in PDAC compared to the other tissue types assessed. This indicates that the MUC1 receptor is a feasible target for targeted therapies of PDAC. Abstract Improvements in the prognosis of pancreatic ductal adenocarcinoma (PDAC) rely on the development of effective treatments to target advanced disease. Mucin 1 (MUC1) is a transmembrane glycoprotein which is involved in the metastatic progression of PDAC and is a receptor-of-interest for targeted radionuclide therapy. The aim of this study was to determine the feasibility of MUC1-based targeted radionuclide therapy for PDAC, by evaluating the expression profile of MUC1 in different pancreatic cells and tissues using the C595 antibody. MUC1 expression was evaluated in four PDAC cell lines (PANC-1, BxPC-3, CAPAN-1 and AsPC-1) using flow cytometry and immunocytochemistry. Immunohistochemistry was performed on primary and metastatic PDAC, pancreatitis, pancreatic intra-epithelial neoplasia and normal pancreatic tissue samples to identify potential changes in C595-reactive MUC1 expression across different disease groups. C595-reactive MUC1 expression was found to varying degrees in the cell lines (11.5–93.1%). A pixel analysis of the immunohistochemical staining demonstrated highest MUC1 expression in primary PDAC tissue (mean pixel value of 205.4), followed by other pancreatic cancer types (204.9), pancreatic intra-epithelial neoplasia (203.8), metastatic PDAC (201.5), chronic pancreatitis (198.1) and normal pancreatic tissue (191.4). The increased expression in malignant tissues and reduced expression in benign tissues indicate that C595-reactive MUC1 is a potential target for targeted radionuclide therapy of PDAC.
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Affiliation(s)
- Ashleigh Hull
- Cancer Research Institute and Allied Health and Human Performance Academic Unit, University of South Australia, Adelaide, SA 5000, Australia; (Y.L.); (W.H.); (E.B.)
- Correspondence:
| | - Yanrui Li
- Cancer Research Institute and Allied Health and Human Performance Academic Unit, University of South Australia, Adelaide, SA 5000, Australia; (Y.L.); (W.H.); (E.B.)
| | - Dylan Bartholomeusz
- Department of PET, Nuclear Medicine & Bone Densitometry, SA Medical Imaging, Royal Adelaide Hospital, Adelaide, SA 5000, Australia;
- Adelaide Medical School, The University of Adelaide, Adelaide, SA 5000, Australia
| | - William Hsieh
- Cancer Research Institute and Allied Health and Human Performance Academic Unit, University of South Australia, Adelaide, SA 5000, Australia; (Y.L.); (W.H.); (E.B.)
- Department of PET, Nuclear Medicine & Bone Densitometry, SA Medical Imaging, Royal Adelaide Hospital, Adelaide, SA 5000, Australia;
| | - Samantha Escarbe
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia; (S.E.); (A.R.)
| | - Andrew Ruszkiewicz
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia; (S.E.); (A.R.)
- Division of Anatomical Pathology, SA Pathology, Adelaide, SA 5000, Australia
| | - Eva Bezak
- Cancer Research Institute and Allied Health and Human Performance Academic Unit, University of South Australia, Adelaide, SA 5000, Australia; (Y.L.); (W.H.); (E.B.)
- Department of Physics, The University of Adelaide, Adelaide, SA 5000, Australia
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Lee JC, Shin DW, Park H, Kim J, Youn Y, Kim JH, Kim J, Hwang JH. Tolerability and safety of EUS-injected adenovirus-mediated double-suicide gene therapy with chemotherapy in locally advanced pancreatic cancer: a phase 1 trial. Gastrointest Endosc 2020; 92:1044-1052.e1. [PMID: 32084409 DOI: 10.1016/j.gie.2020.02.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 02/08/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Locally advanced pancreatic cancer (LAPC) is challenging. Here, we aimed to evaluate the tolerability and safety of Ad5-yCD/mutTK(SR39)rep-ADP (Ad5-DS), a replication-competent adenovirus-mediated double-suicide gene therapy in combination with gemcitabine in patients with LAPC. METHODS Patients with newly diagnosed LAPC were enrolled in this single-center, open-label, 3 + 3 dose-escalation phase 1 trial. Ad5-DS was injected into the pancreatic mass with EUS-guided fine needles combined with oral 5-fluorocytosine and valganciclovir, and a standard dose of intravenous gemcitabine. The doses of Ad5-DS in cohorts 1 to 3 were 1 × 1011, 3 × 1011, and 1 × 1012 viral particles (vp)/mL, respectively. Patients were observed for dose-limiting toxicity (DLT) for 8 weeks after Ad5-DS injection. Toxicity within 12 weeks, tumor response in 12 weeks, disease progression in 6.5 months, and detection of adenoviral DNA particles in 8 weeks were also assessed. RESULTS Among the 11 enrolled patients, 9 completed the evaluation period and 2 withdrew their consent. No DLT was reported; thus, the maximum tolerated dose was not reached. No additional toxicity was reported in 9 to 12 weeks. One patient showed a partial response and 8 showed stable disease at 12 weeks. Two patients showed disease progression at 6.5 months (median progression-free survival, 11.4 months). At 8 weeks, serum adenoviral DNA particles were detected in 4 patients (median, 55 days). CONCLUSION A combination of intratumoral Ad5-DS and gemcitabine is safe and well tolerated in patients with LAPC. This warrants further investigation in a larger clinical trial. (Clinical trial registration number: NCT02894944.).
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Affiliation(s)
- Jong-Chan Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University, Bundang Hospital, Seongnam, Korea
| | - Dong Woo Shin
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University, Bundang Hospital, Seongnam, Korea
| | - Haeseong Park
- Division of Oncology, Alvin J Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jinkuk Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University, Bundang Hospital, Seongnam, Korea
| | - Yuna Youn
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University, Bundang Hospital, Seongnam, Korea
| | - Jae Hyeong Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University, Bundang Hospital, Seongnam, Korea
| | - Jaihwan Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University, Bundang Hospital, Seongnam, Korea
| | - Jin-Hyeok Hwang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University, Bundang Hospital, Seongnam, Korea
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11
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Wang W, Chen H, Gao W, Wang S, Wu K, Lu C, Luo X, Li L, Yu C. Girdin interaction with vimentin induces EMT and promotes the growth and metastasis of pancreatic ductal adenocarcinoma. Oncol Rep 2020; 44:637-649. [PMID: 32467989 PMCID: PMC7336503 DOI: 10.3892/or.2020.7615] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly malignant cancer of the digestive tract that has a high potential for metastasis and a poor prognosis. Girdin was first reported in 2005 as an actin-binding protein and was designated as Akt-phosphorylation enhancer (APE); thus, Girdin has been revealed to have an important role in regulating cancer development. There is additional evidence indicating that Girdin is associated with cell proliferation, migration, invasion and survival in certain cancers. However, the potential mechanisms involving Girdin and mobility in pancreatic cancer have not been elucidated. In the present study, it was revealed that Girdin was highly expressed in pancreatic cancer tissue and was associated with tumor grade. The present study, to the best of our knowledge, is the first aimed at investigating the unknown role of Girdin in PDAC metastasis. A short hairpin RNA for Girdin (sh-Girdin) was successfully constructed with recombinant adenoviral vectors to suppress the expression of Girdin in pancreatic cancer cell lines (PANC-1 and BXPC-3). The silencing efficiency of the Girdin shRNA was determined by RT-qPCR and western blot analysis, and decreased Girdin expression in the cytoplasm was revealed by immunofluorescence detection. Then, sulforhodamine B (SRB) and colony formation assays were used to confirm that the knockdown of Girdin inhibited proliferation in vitro, and Transwell assays were used to examine the influence of Girdin knockdown on cellular mobility. Animal experiments also confirmed that silencing the expression of Girdin in pancreatic cancer cells inhibited the growth and metastasis of pancreatic cancer in vivo. Transforming growth factor-β (TGF-β) is a common inducer of epithelial-mesenchymal transition (EMT) and can effectively induce EMT in PDAC. Notably, TGF-β-treated cells exhibited changes in the classic biological markers of EMT. The expression of E-cadherin, a marker of the epithelial phenotype, increased, and the expression of N-cadherin and vimentin, markers of the interstitial phenotype, decreased in response to sh-Girdin. According to these experiments, Girdin may affect pancreatic cancer progression and development by interacting with vimentin. Therefore, there is evidence indicating that Girdin could be designated as a prognostic biological indicator and a candidate therapeutic target for pancreatic cancer.
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Affiliation(s)
- Wulin Wang
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Hao Chen
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Wenjie Gao
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Sheng Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Suqian Hospital of Xuzhou Medical University, Suqian, Jiangsu 223800, P.R. China
| | - Kai Wu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital of Changzhou, Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
| | - Chen Lu
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Xiagang Luo
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Lianhong Li
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Chunzhao Yu
- Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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Madamsetty VS, Pal K, Dutta SK, Wang E, Mukhopadhyay D. Targeted Dual Intervention-Oriented Drug-Encapsulated (DIODE) Nanoformulations for Improved Treatment of Pancreatic Cancer. Cancers (Basel) 2020; 12:cancers12051189. [PMID: 32397114 PMCID: PMC7281578 DOI: 10.3390/cancers12051189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/24/2020] [Accepted: 05/06/2020] [Indexed: 12/14/2022] Open
Abstract
Despite recent advancements, effective treatment for pancreatic ductal adenocarcinoma (PDAC) has remained elusive. The overall survival rate in PDAC patients has been dismally low due to resistance to standard therapies. In fact, the failure of monotherapies to provide long-term survival benefits in patients led to ascension of several combination therapies for PDAC treatment. However, these combination therapies provided modest survival improvements while increasing treatment-related adverse side effects. Hence, recent developments in drug delivery methods hold the potential for enhancing therapeutic benefits by offering cocktail drug loading and minimizing chemotherapy-associated side effects. Nanoformulations-aided deliveries of anticancer agents have been a success in recent years. Yet, improving the tumor-targeted delivery of drugs to PDAC remains a major hurdle. In the present paper, we developed several new tumor-targeted dual intervention-oriented drug-encapsulated (DIODE) liposomes. We successfully formulated liposomes loaded with gemcitabine (G), paclitaxel (P), erlotinib (E), XL-184 (c-Met inhibitor, X), and their combinations (GP, GE, and GX) and evaluated their in vitro and in vivo efficacies. Our novel DIODE liposomal formulations improved median survival in comparison with gemcitabine-loaded liposomes or vehicle. Our findings are suggestive of the importance of the targeted delivery for combination therapies in improving pancreatic cancer treatment.
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13
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Zhao Y, Zhang H, Wu P, Tan D, Zhao Y, Zhang C, Wang J, Bai B, An J, Shi C. Mediated Imaging and Improved Targeting of Farnesylthiosalicylic Acid Delivery for Pancreatic Cancer via Conjugation with Near-Infrared Fluorescence Heptamethine Carbocyanine Dye. ACS APPLIED BIO MATERIALS 2020; 3:1129-1138. [DOI: 10.1021/acsabm.9b01068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ya Zhao
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - He Zhang
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - Pengpeng Wu
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - Dengxu Tan
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - Yong Zhao
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - Caiqin Zhang
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - Jie Wang
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - Bing Bai
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
| | - Jiaze An
- Department of Hepatobiliary and Pancreaticosplenic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi’an 710069, China
| | - Changhong Shi
- Division of Cancer Biology, Laboratory Animal Center, The Fourth Military Medical University, Xi’an 710032, China
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Song HB. Possible involvement of HSP70 in pancreatic cancer cell proliferation after heat exposure and impact on RFA postoperative patient prognosis. Biochem Biophys Rep 2019; 20:100700. [PMID: 31867446 PMCID: PMC6895569 DOI: 10.1016/j.bbrep.2019.100700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 11/26/2022] Open
Abstract
Purpose As an alleviative treatment measured in patients with unresectable advanced pancreatic cancer, radiofrequency ablation (RFA) needed more clinical data to prove its advantages and to explore limitations in its utilization. This study was determined to observe the efficacy of RFA, and to explore its impact on perioperative periphery carcinoma as well as the normal pancreatic tissues. Methods Clinical data of 32 patients with pancreatic cancer accepted RFA surgery were collected. Followed up patients' pain degree and the changes in serum tumor markers CA19-9 and CA 242 before and after surgery. Ex vivo, gave human pancreatic cancer cell line PANC-1 heat treatment to simulate the heat exposure condition periphery carcinoma was experienced during RFA surgery, and to observe the proliferation rate and HSP70 expression change compared with control group. Results Of the 32 patients, 1 died of upper gastrointestinal hemorrhage, and 29 survived for more than 5 months, 2 of which for more than 16 months. The average CA19-9 and CA 242 levels of the patients were significantly decreased in 3 months after surgery (t = 9.873, 5.978, P < 0.001). During in vitro experiments, the proliferation rate of PANC-1 cells after heating was significantly increased, accompanied with the increased HSP70 expression. The addition of HSP70 inhibitor can inhibit the rise of proliferation after heat therapy. Conclusion Utilizing RFA treat patients with unresectable advanced pancreatic cancer, could effectively relieve the pain, decline jaundice, and deduce tumor marker levels significantly. However, it failed to extend the long-term survival rate of the patients significantly. This study found that a higher proliferative rate accompanied with a higher HSP70 expression level were observed on in vitro cultured pancreatic carcinoma cells after heat treatment, which could be altered by HSP70 inhibitor. And these findings indicated that the heat exposure might impact periphery carcinoma during RFA surgery and HSP70 might play an important role in patients' prognosis.
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Affiliation(s)
- Hui-Bin Song
- The Third Affiliated Hospital of Qiqihar Medical College, 27 Taishun Street, Tiefeng District, Qiqihar, Heilongjiang province, China
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