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Kobayashi K, Einama T, Tsunenari T, Yonamine N, Takao M, Takihata Y, Tsujimoto H, Ueno H, Tamura K, Ishida J, Kishi Y. Preoperative CA19‑9 level and dual time point FDG‑PET/CT as strong biological indicators of borderline resectability in pancreatic cancer: A retrospective study. Oncol Lett 2024; 27:279. [PMID: 38699663 PMCID: PMC11063755 DOI: 10.3892/ol.2024.14412] [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: 01/06/2024] [Accepted: 03/08/2024] [Indexed: 05/05/2024] Open
Abstract
Tumor resectability, which is increasingly determined based on preoperative chemotherapy, is critical in determining the best treatment for pancreatic cancers. The present study evaluated the usefulness of serum carbohydrate antigen 19-9 (CA19-9) and the preoperative 8F-fluorodeoxyglucose positron emission tomography/computed tomography standardized uptake value (SUV) percentage change (SUVmax%=[(SUVmax2-SUVmax1)/SUVmax1] ×100, where SUVmax1 and SUVmax2 represent the initial and delayed phases, respectively) as biological factors indicative of tumor resectability. The present study included patients with resectable pancreatic cancer who underwent complete surgical resection, for whom both CA19-9 and SUVmax% were documented using cut-off values of 500 U/ml and 24.25%, respectively. Patients were classified as follows: i) High CA19-9 and SUVmax%: both CA19-9 and SUVmax% were elevated; ii) high CA19-9 or SUVmax%: either CA19-9 or SUVmax% were elevated; or iii) low CA19-9 and SUVmax%: neither value met the cut-off. Relapse-free survival (RFS) and overall survival (OS) were calculated, for which univariate and multivariate analyses were performed. Of the 86 patients included, 39 were classified as high CA19-9 or SUVmax% and 12 as high CA19-9 and SUVmax%, with the former group having a significantly worse RFS (vs. low CA19-9 and SUVmax%; P<0.001; vs. high CA19-9 or SUVmax%; P=0.011) and OS (vs. low CA19-9 and SUVmax%, P=0.002; vs. high CA19-9 or SUVmax%, P<0.001). Therefore, high CA19-9 and SUVmax% was an independent predictor of worse RFS (P<0.001) and OS (P=0.003). In conclusion, CA19-9 and SUVmax% can be utilized as biological indicators of resectability.
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Affiliation(s)
- Kazuki Kobayashi
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Takahiro Einama
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Takazumi Tsunenari
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Naoto Yonamine
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Mikiya Takao
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Yasuhiro Takihata
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Hironori Tsujimoto
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Hideki Ueno
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Katsumi Tamura
- Department of Radiology, Tokorozawa PET Diagnostic Imaging Clinic, Tokorozawa, Saitama 359-1124, Japan
| | - Jiro Ishida
- Department of Radiology, Tokorozawa PET Diagnostic Imaging Clinic, Tokorozawa, Saitama 359-1124, Japan
| | - Yoji Kishi
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
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Tanemura M, Furukawa K, Mikamori M, Asaoka T, Yasuoka H, Marukawa D, Urata Y, Yamada D, Kobayashi S, Eguchi H. Clinical impact of high-quality testing for peritoneal lavage cytology in pancreatic cancer. Sci Rep 2024; 14:10199. [PMID: 38702437 PMCID: PMC11068862 DOI: 10.1038/s41598-024-60936-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/29/2024] [Indexed: 05/06/2024] Open
Abstract
In pancreatic ductal adenocarcinoma (PDAC) patients, the importance of peritoneal lavage cytology, which indicates unresectability, remains controversial. This study sought to determine whether positive peritoneal lavage cytology (CY+) precludes pancreatectomy. Furthermore, we propose a novel liquid biopsy using peritoneal lavage fluid to detect viable peritoneal tumor cells (v-PTCs) with TelomeScan F35, a telomerase-specific replication-selective adenovirus engineered to express green fluorescent protein. Resectable cytologically or histologically proven PDAC patients (n = 53) were enrolled. CY was conducted immediately following laparotomy. The resulting fluid was examined by conventional cytology (conv-CY; Papanicolaou staining and MOC-31 immunostaining) and by the novel technique (Telo-CY; using TelomeScan F35). Of them, 5 and 12 were conv-CY+ and Telo-CY+, respectively. All underwent pancreatectomy. The two double-CY+ (conv-CY+ and Telo-CY+) patients showed early peritoneal recurrence (P-rec) postoperatively, despite adjuvant chemotherapy. None of the three conv-CY+ Telo-CY- patients exhibited P-rec. Six of the 10 Telo-CY+ conv-CY- patients (60%) relapsed with P-rec. Of the remaining 38 double-CY- [conv-CY-, Telo-CY-, conv-CY± (Class III)] patients, 3 (8.3%) exhibited P-rec. Although conv-CY+ status predicted poor prognosis and a higher risk of P-rec, Telo-CY was more sensitive for detecting v-PTC. Staging laparoscopy and performing conv-CY and Telo-CY are needed to confirm the indication for pancreatectomy.
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Affiliation(s)
- Masahiro Tanemura
- Department of Surgery, Rinku General Medical Center, 2-23 Rinku Orai-kita, Izumisano, Osaka, 598-8577, Japan.
| | - Kenta Furukawa
- Department of Surgery, Osaka Police Hospital, 10-31 Kitayamachyo, Tennouji-ku, Osaka, 543-0035, Japan
| | - Manabu Mikamori
- Department of Surgery, Osaka Police Hospital, 10-31 Kitayamachyo, Tennouji-ku, Osaka, 543-0035, Japan
| | - Tadafumi Asaoka
- Department of Surgery, Osaka Police Hospital, 10-31 Kitayamachyo, Tennouji-ku, Osaka, 543-0035, Japan
| | - Hironao Yasuoka
- Department of Pathology, Osaka Police Hospital, 10-31 Kitayamachyo, Tennouji-ku, Osaka, 543-0035, Japan
| | - Daiki Marukawa
- Department of Surgery, Rinku General Medical Center, 2-23 Rinku Orai-kita, Izumisano, Osaka, 598-8577, Japan
| | - Yasuo Urata
- Oncolys BioPharma Inc., Toranomon Towers 10F, 4-1-28 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Graduate School of Medicine and Faculty of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shogo Kobayashi
- Department of Gastroenterological Surgery, Graduate School of Medicine and Faculty of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine and Faculty of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
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Luo WF, Jiao YT, Lin XL, Zhao Y, Wang SB, Shen J, Deng J, Ye YF, Han ZP, Xie FM, He JH, Wan Y. Effectiveness of fecal DNA syndecan-2 methylation testing for detection of colorectal cancer in a high-risk Chinese population. World J Gastrointest Oncol 2024; 16:1361-1373. [PMID: 38660655 PMCID: PMC11037044 DOI: 10.4251/wjgo.v16.i4.1361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/12/2024] [Accepted: 02/07/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is among the most prevalent and life-threatening malignancies worldwide. Syndecan-2 methylation (mSDC2) testing has emerged as a widely used biomarker for early detection of CRC in stool and serum samples. Cancer (CRC) is among the most prevalent and life-threatening malignancies worldwide. mSDC2 testing has emerged as a widely used biomarker for early detection of CRC in stool and serum samples. AIM To validate the effectiveness of fecal DNA mSDC2 testing in the detection of CRC among a high-risk Chinese population to provide evidence-based data for the development of diagnostic and/or screening guidelines for CRC in China. METHODS A high-risk Chinese cohort consisting of 1130 individuals aged 40-79 years was selected for evaluation via fecal mSDC2 testing. Sensitivity and specificity for CRC, advanced adenoma (AA) and advanced colorectal neoplasia (ACN) were determined. High-risk factors for the incidence of colorectal lesions were determined and a logistic regression model was constructed to reflect the efficacy of the test. RESULTS A total of 1035 high-risk individuals were included in this study according to established criteria. Among them, 16 suffered from CRC (1.55%), 65 from AA (6.28%) and 189 from non-AAs (18.26%); 150 patients were diagnosed with polyps (14.49%). Diagnoses were established based upon colonoscopic and pathological examinations. Sensitivities of the mSDC2 test for CRC and AA were 87.50% and 40.00%, respectively; specificities were 95.61% for other groups. Positive predictive values of the mSDC2 test for CRC, AA and ACN were 16.09%, 29.89% and 45.98%, respectively; the negative predictive value for CRC was 99.79%. After adjusting for other high-risk covariates, mSDC2 test positivity was found to be a significant risk factor for the occurrence of ACN (P < 0.001). CONCLUSION Our findings confirmed that offering fecal mSDC2 testing and colonoscopy in combination for CRC screening is effective for earlier detection of malignant colorectal lesions in a high-risk Chinese population.
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Affiliation(s)
- Wen-Feng Luo
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Yu-Ting Jiao
- South China Normal University-Panyu Central Hospital Joint Laboratory of Translational Medical Research, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Xiao-Ling Lin
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Ying Zhao
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Sheng-Bo Wang
- Digestive Disease Center, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Jian Shen
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Jie Deng
- Shunde Vocational and Technical College, Foshan 528300, Guangdong Province, China
| | - Yu-Feng Ye
- Medical Imaging Institute of Panyu, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Ze-Ping Han
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Fang-Mei Xie
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Jin-Hua He
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
| | - Yu Wan
- Digestive Disease Center, Guangzhou Panyu Central Hospital, Guangzhou 511400, Guangdong Province, China
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Igarashi T, Fukasawa M, Watanabe T, Kimura N, Itoh A, Tanaka H, Shibuya K, Yoshioka I, Hirabayashi K, Fujii T. Evaluating staging laparoscopy indications for pancreatic cancer based on resectability classification and treatment strategies for patients with positive peritoneal washing cytology. Ann Gastroenterol Surg 2024; 8:124-132. [PMID: 38250680 PMCID: PMC10797817 DOI: 10.1002/ags3.12719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/17/2023] [Accepted: 07/04/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction The prognosis of pancreatic ductal adenocarcinoma (PDAC) in patients with positive peritoneal washing cytology (CY1) is poor. We aimed to evaluate the results of staging laparoscopy (SL) and treatment efficacy in CY1 patients based on a resectability classification. Methods We retrospectively reviewed 250 patients with PDAC who underwent SL before the initial treatment between 2017 and 2023 at the University of Toyama. Results The breakdown of cases by resectability classification was resectable (R):borderline resectable (BR):unresectable locally advanced (UR-LA) = 131:48:71 cases. The frequency of CY1 increased in proportion to the degree of local progression (R:BR:UR-LA = 20:23:34%), but the frequencies of liver metastasis or peritoneal dissemination were comparable (R:BR:UR-LA = 6.9:6.3:8.5%). Most CY1 patients received gemcitabine along with nab-paclitaxel therapy. The CY-negative conversion rates (R:BR:UR-LA = 70:64:52%) and conversion surgery rates (R:BR:UR-LA = 40:27:9%) were inversely proportional to the degree of local progression.Comparing H0P0CY1 factors for each classification, patients with H0P0CY1 had significantly more pancreatic body or tail carcinoma and tumor size ≥32 mm in R patients, whereas in BR patients, duke pancreatic monoclonal antigen type 2 (DUPAN-2) ≥ 230 U/mL was a significant factor. In contrast, no significant factors were observed in UR-LA patients. Conclusion The CY1 rates, CY-negative conversion rates, and conversion surgery rates varied according to local progression. In the case of R and BR, SL could be considered in patients with pancreatic body or tail carcinoma, large tumor size, or high DUPAN-2 level. In UR-LA, SL might be considered for all patients.
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Affiliation(s)
- Takamichi Igarashi
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Mina Fukasawa
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Toru Watanabe
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Nana Kimura
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Ayaka Itoh
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Haruyoshi Tanaka
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Kazuto Shibuya
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Isaku Yoshioka
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Kenichi Hirabayashi
- Department of Diagnostic Pathology, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
| | - Tsutomu Fujii
- Department of Surgery and Science, Faculty of MedicineAcademic Assembly, University of ToyamaToyamaJapan
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Shindo Y, Tokumitsu Y, Matsui H, Nakajima M, Kimura Y, Iida M, Suzuki N, Takeda S, Ioka T, Nagano H. Efficacy of Staging Laparoscopy in Patients With Pancreatic Cancer: A Single Center Prospective Cohort Study. In Vivo 2023; 37:2704-2709. [PMID: 37905607 PMCID: PMC10621419 DOI: 10.21873/invivo.13380] [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: 07/22/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND/AIM Staging laparoscopy (SL) for pancreatic cancer (PC) is considered useful to improve accuracy of staging and resectability. However, given the current accuracy of preoperative imaging, the routine application of SL remains unclear. Therefore, we aimed to investigate the importance of SL in patients with PC without radiological distant metastasis. PATIENTS AND METHODS This was a prospective, cohort, observational study. SL was performed in all patients with PC without radiological distant metastasis before pancreatectomy or chemotherapy at the Yamaguchi University Hospital. RESULTS Between July 2020 and March 2023, 55 patients underwent SL with peritoneal cytology. The median age was 71, with 53% male patients. SL revealed occult metastasis in six (11%) patients including positive peritoneal cytology (n=6), and peritoneal dissemination (n=1). The resectability of unresectable locally advanced (UR-LA) was associated with a significantly increased risk of occult metastasis (p=0.0211). The median operative time was 40 min, and the median volume of blood loss was 3 ml. There were no severe complications (Clavien-Dindo III or higher). CONCLUSION SL with peritoneal cytology regardless of previous abdominal surgery is safe and effective to determine accurate staging. Therefore, SL with peritoneal cytology should be considered for patients with PC without radiological distant metastasis, especially in those with UR-LA.
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Affiliation(s)
- Yoshitaro Shindo
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Yukio Tokumitsu
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Hiroto Matsui
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Masao Nakajima
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Yuta Kimura
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Michihisa Iida
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Nobuaki Suzuki
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Shigeru Takeda
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Tatsuya Ioka
- Department of Oncology Center, Yamaguchi University Hospital, Ube, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan;
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Fukasawa M, Watanabe T, Tanaka H, Itoh A, Kimura N, Shibuya K, Yoshioka I, Murotani K, Hirabayashi K, Fujii T. Efficacy of staging laparoscopy for resectable pancreatic cancer on imaging and the therapeutic effect of systemic chemotherapy for positive peritoneal cytology. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2023; 30:1261-1272. [PMID: 37750024 DOI: 10.1002/jhbp.1356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/16/2023] [Accepted: 06/02/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND The frequency and prognosis of positive peritoneal washing cytology (CY1) in resectable pancreatic ductal adenocarcinoma (R-PDAC) remains unclear. The objective of this study was to identify the clinical implications of CY1 in R-PDAC and staging laparoscopy (SL). METHODS We retrospectively analyzed 115 consecutive patients with R-PDAC who underwent SL between 2018 and 2022. Patients with negative cytology (CY0) received radical surgery after neoadjuvant chemotherapy, while CY1 patients received systemic chemotherapy and were continuously evaluated for cytology. RESULTS Of the 115 patients, 84 had no distant metastatic factors, 22 had only CY1, and nine had distant metastasis. Multivariate logistic regression revealed that larger tumor size was an independent predictor of the presence of any distant metastatic factor (OR: 6.30, p = .002). Patients with CY1 showed a significantly better prognosis than patients with distant metastasis (MST: 24.6 vs. 18.9 months, p = .040). A total of 11 CY1 patients were successfully converted to CY-negative, and seven underwent conversion surgery. There was no significant difference in overall survival between patients with CY0 and those converted to CY-negative. CONCLUSION SL is effective even for R-PDAC. The prognosis of CY1 patients converted to CY-negative is expected to be similar to that of CY0 patients.
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Affiliation(s)
- Mina Fukasawa
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Toru Watanabe
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Haruyoshi Tanaka
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Ayaka Itoh
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Nana Kimura
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Kazuto Shibuya
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Isaku Yoshioka
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Kenta Murotani
- Biostatistics Center, Graduate School of Medicine, Kurume University, Kurume, Japan
| | - Kenichi Hirabayashi
- Department of Diagnostic Pathology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Tsutomu Fujii
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
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Tsunedomi R, Shindo Y, Nakajima M, Yoshimura K, Nagano H. The tumor immune microenvironment in pancreatic cancer and its potential in the identification of immunotherapy biomarkers. Expert Rev Mol Diagn 2023; 23:1121-1134. [PMID: 37947389 DOI: 10.1080/14737159.2023.2281482] [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: 02/21/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023]
Abstract
INTRODUCTION Pancreatic cancer (PC) has an extremely poor prognosis, even with surgical resection and triplet chemotherapy treatment. Cancer immunotherapy has been recently approved for tumor-agnostic treatment with genome analysis, including in PC. However, it has limited efficacy. AREAS COVERED In addition to the low tumor mutation burden, one of the difficulties of immunotherapy in PC is the presence of abundant stromal cells in its microenvironment. Among stromal cells, cancer-associated fibroblasts (CAFs) play a major role in immunotherapy resistance, and CAF-targeted therapies are currently under development, including those in combination with immunotherapies. Meanwhile, microbiomes and tumor-derived exosomes (TDEs) have been shown to alter the behavior of distant receptor cells in PC. This review discusses the role of CAFs, microbiomes, and TDEs in PC tumor immunity. EXPERT OPINION Elucidating the mechanisms by which CAFs, microbiomes, and TDEs are involved in the tumorigenesis of PC will be helpful for developing novel immunotherapeutic strategies and identifying companion biomarkers for immunotherapy. Spatial single-cell analysis of the tumor microenvironment will be useful for identifying biomarkers of PC immunity. Furthermore, given the complexity of immune mechanisms, artificial intelligence models will be beneficial for predicting the efficacy of immunotherapy.
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Affiliation(s)
- Ryouichi Tsunedomi
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yoshitaro Shindo
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Masao Nakajima
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Kiyoshi Yoshimura
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Shinagawa, Tokyo, Japan
- Department of Clinical Immuno-Oncology, Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Setagaya, Tokyo, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
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Cassese G, Han HS, Yoon YS, Lee JS, Lee B, Cubisino A, Panaro F, Troisi RI. Role of neoadjuvant therapy for nonmetastatic pancreatic cancer: Current evidence and future perspectives. World J Gastrointest Oncol 2023; 15:911-924. [PMID: 37389109 PMCID: PMC10302990 DOI: 10.4251/wjgo.v15.i6.911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/17/2023] [Accepted: 04/24/2023] [Indexed: 06/14/2023] Open
Abstract
Pancreatic adenocarcinoma (PDAC) is one of the most common and lethal human cancers worldwide. Surgery followed by adjuvant chemotherapy offers the best chance of a long-term survival for patients with PDAC, although only approximately 20% of the patients have resectable tumors when diagnosed. Neoadjuvant chemotherapy (NACT) is recommended for borderline resectable pancreatic cancer. Several studies have investigated the role of NACT in treating resectable tumors based on the recent advances in PDAC biology, as NACT provides the potential benefit of selecting patients with favorable tumor biology and controls potential micro-metastases in high-risk patients with resectable PDAC. In such challenging cases, new potential tools, such as ct-DNA and molecular targeted therapy, are emerging as novel therapeutic options that may improve old paradigms. This review aims to summarize the current evidence regarding the role of NACT in treating non-metastatic pancreatic cancer while focusing on future perspectives in light of recent evidence.
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Affiliation(s)
- Gianluca Cassese
- Department of Clinical Medicine and Surgery, Division of Minimally Invasive HPB Surgery and Transplantation Service, Federico II University Hospital, Naples 80131, Italy
| | - Ho-Seong Han
- Department of Surgery, Seoul National University College of Medicine, Seongnam 13620, Gyeonggi-do, South Korea
| | - Yoo-Seok Yoon
- Department of Surgery, Seoul National University College of Medicine, Seongnam 13620, Gyeonggi-do, South Korea
| | - Jun Suh Lee
- Department of Surgery, Seoul National University College of Medicine, Seongnam 13620, Gyeonggi-do, South Korea
| | - Boram Lee
- Department of Surgery, Seoul National University College of Medicine, Seongnam 13620, Gyeonggi-do, South Korea
| | - Antonio Cubisino
- Department of HPB Surgery and Transplantation, Beaujon Hospital, Clichy 92110, France
| | - Fabrizio Panaro
- Department of Digestive Surgery and Liver Transplantation, CHU Montpellier, Montpellier 34100, France
| | - Roberto Ivan Troisi
- Department of Clinical Medicine and Surgery, Division of Minimally Invasive HPB Surgery and Transplantation Service, Federico II University Hospital, Naples 80131, Italy
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