1
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Ueda-Hayakawa I, Maekawa A, Tonomura K, Kaneda E, Yamazaki Y, Arase N, Fujimoto M. Association between periungual changes and myositis-specific autoantibodies in patients with idiopathic inflammatory myopathies: A retrospective cohort study. J Am Acad Dermatol 2024:S0190-9622(24)00685-6. [PMID: 38704031 DOI: 10.1016/j.jaad.2024.03.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/07/2024] [Accepted: 03/10/2024] [Indexed: 05/06/2024]
Affiliation(s)
- Ikuko Ueda-Hayakawa
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan.
| | - Aya Maekawa
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kyoko Tonomura
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Emi Kaneda
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yuriko Yamazaki
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan; Department of Cutaneous Allergy and Host Defense, Osaka University Immunology Frontier Research Center, Suita, Japan
| | - Noriko Arase
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
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Maekawa A, Oba A, Inoue Y, Omiya K, Ono Y, Sato T, Watanabe S, Uchino Y, Kobayashi K, Ito H, Sato Y, Tanabe M, Saiura A, Takahashi Y. ASO Visual Abstract: Technical Strategy for Pancreatic Body Cancers-A Raison d'Etre of Distal Pancreatectomy With Portal Resection. Ann Surg Oncol 2024; 31:1371-1372. [PMID: 38063986 DOI: 10.1245/s10434-023-14700-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Affiliation(s)
- Aya Maekawa
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Atsushi Oba
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kojiro Omiya
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yoshihiro Ono
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takafumi Sato
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shuichi Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshihiro Uchino
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Surgery, Kurume University School of Medicine, Fukuoka, Japan
| | - Kosuke Kobayashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiromichi Ito
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yozo Sato
- Department of Diagnostic Ultrasound and Interventional Radiology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Diagnostic and Interventional Radiology, Aichi Cancer Center, Aichi, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akio Saiura
- Department of Hepatobiliary-Pancreatic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute, Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
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Maekawa A, Oba A, Omiya K, Inoue Y, Takahashi Y. ASO Author Reflections: Surgical Strategies for Pancreatic Body Cancers with Portal Vein Involvement: Distal Pancreatectomy or Pancreaticoduodenectomy? Ann Surg Oncol 2024; 31:1366-1367. [PMID: 38032464 DOI: 10.1245/s10434-023-14663-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023]
Affiliation(s)
- Aya Maekawa
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Atsushi Oba
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
| | - Kojiro Omiya
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
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Maekawa A, Oba A, Inoue Y, Omiya K, Ono Y, Sato T, Watanabe S, Uchino Y, Kobayashi K, Ito H, Sato Y, Tanabe M, Saiura A, Takahashi Y. Technical Strategy for Pancreatic Body Cancers: A Raison d'etre of Distal Pancreatectomy with Portal Resection. Ann Surg Oncol 2024; 31:1347-1357. [PMID: 37952022 DOI: 10.1245/s10434-023-14554-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/22/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Advancements in multiagent chemotherapy have expanded the surgical indications for pancreatic cancer. Although pancreaticoduodenectomy (PD) with portal vein resection (PVR) has become widely adopted, distal pancreatectomy (DP) with PVR remains rarely performed because of its technical complexity. This study was designed to assess the feasibility of DP-PVR compared with PD-PVR for pancreatic body cancers, with a focus on PV complications and providing optimal reconstruction techniques when DP-PVR is necessary. METHODS A retrospective review was conducted on consecutive pancreatic body cancer patients who underwent pancreatectomy with PVR between 2005 and 2020. An algorithm based on the anatomical relationship between the arteries and PV was used for optimal surgical selection. RESULTS Among 119 patients, 32 underwent DP-PVR and 87 underwent PD-PVR. Various reconstruction techniques were employed in DP-PVR cases, including patch reconstruction, graft interposition, and wedge resection. The majority of PD-PVR cases involved end-to-end anastomosis. The length of PVR was shorter in DP-PVR (25 vs. 40 mm; p < 0.001). Although Clavien-Dindo ≥3a was higher in DP-PVR (p = 0.002), inpatient mortality and R0 status were similar. Complete PV occlusion occurred more frequently in DP-PVR than in PD-PVR (21.9% vs. 1.1%; p < 0.001). A cutoff value of 30 mm for PVR length was determined to be predictive of nonrecurrence-related PV occlusion after DP-PVR. The two groups did not differ significantly in recurrence or overall survival. CONCLUSIONS DP-PVR had higher occlusion and postoperative complication rates than PD-PVR. These findings support the proposed algorithm and emphasize the importance of meticulous surgical manipulation when DP-PVR is deemed necessary.
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Affiliation(s)
- Aya Maekawa
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Atsushi Oba
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kojiro Omiya
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yoshihiro Ono
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takafumi Sato
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shuichi Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshihiro Uchino
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Surgery, Kurume University School of Medicine, Fukuoka, Japan
| | - Kosuke Kobayashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiromichi Ito
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yozo Sato
- Department of Diagnostic Ultrasound and Interventional Radiology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Diagnostic and Interventional Radiology, Aichi Cancer Center, Aichi, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akio Saiura
- Department of Hepatobiliary Pancreatic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
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Omiya K, Maekawa A, Oba A, Inoue Y, Hirose Y, Kobayashi K, Ono Y, Sato T, Ichinose J, Sasaki T, Ozaka M, Wu YHA, Hiratsuka M, Matsueda K, Mun M, Sasahira N, Ito H, Saiura A, Takahashi Y. A proposal of ABCD metastasectomy criteria for synchronous/metachronous metastatic pancreatic cancer in the era of multidisciplinary treatment. Br J Surg 2024; 111:znad417. [PMID: 38215237 DOI: 10.1093/bjs/znad417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/04/2023] [Accepted: 11/08/2023] [Indexed: 01/14/2024]
Affiliation(s)
- Kojiro Omiya
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Aya Maekawa
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Atsushi Oba
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yuki Hirose
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kosuke Kobayashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yoshihiro Ono
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takafumi Sato
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Junji Ichinose
- Department of Thoracic Surgical Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takashi Sasaki
- Department of Hepato-Biliary-Pancreatic Medicine, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masato Ozaka
- Department of Hepato-Biliary-Pancreatic Medicine, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Y H Andrew Wu
- Department of Surgery, Albany Medical Center, Albany, New York, USA
| | - Makiko Hiratsuka
- Department of Diagnostic Imaging, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kiyoshi Matsueda
- Department of Diagnostic Imaging, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Mingyon Mun
- Department of Thoracic Surgical Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Naoki Sasahira
- Department of Hepato-Biliary-Pancreatic Medicine, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiromichi Ito
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Akio Saiura
- Department of Hepatobiliary-Pancreatic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
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Oba A, Maekawa A, Inoue Y, Makuuchi R, Omiya K, Kobayashi K, Ono Y, Sato T, Ohashi M, Ito H, Nunobe S, Takahashi Y. Robotic Splenic Vessels Preserving Distal Pancreatectomy in a Post-Distal Gastrectomy Patient. Ann Surg Oncol 2023; 30:6680-6681. [PMID: 37535269 DOI: 10.1245/s10434-023-13802-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/12/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND The optimal procedure during distal pancreatectomy (DP) for patients who have undergone distal gastrectomy (DG) remains unclear. Several papers on remnant gastric ischemia have reported that the preserved splenic vessels are essential for the proximal remnant stomach.1-4 We evaluated the outcomes of DP for post-DG patients in our hospital and introduced robotic splenic vessels preserving DP (R-SPDP). METHODS Postoperative short-term outcomes of DP for post-DG patients during 2014 and 2021 were evaluated. Next, R-SPDP was performed for a post-DG patient with the intention of preserving the remnant stomach safely. The double bipolar method was used to dissect the adhesions around the splenic vessels.5,6 The splenic artery was clamped at the root side to prevent bleeding.7 All short gastric arteries and veins, which were the main feeders of the remnant stomach, were preserved and resection was completed. After resection, the indocyanine green (ICG) fluorescence angiography confirmed blood flow in the short gastric arteries and veins and good return blood flow to the splenic vein.8 RESULTS: Of four patients (50.0%, of 8 DP patients) in whom the remnant stomach was preserved, one conventional DP case had poor ICG perfusion and presented with remnant stomach ischemia postoperatively. The R-SPDP case with good ICG perfusion had a total operation time of 371 minutes and intraoperative blood loss of 10 mL. The oral diet was started on postoperative Day 3, and the postoperative course was uneventful. CONCLUSIONS R-SPDP can be a good option for post-DG patients to preserve the remnant stomach safely.
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Affiliation(s)
- Atsushi Oba
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
| | - Aya Maekawa
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Rie Makuuchi
- Department of Gastroenterological Surgery, Gastroenterological Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kojiro Omiya
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kosuke Kobayashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yoshihiro Ono
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Takafumi Sato
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Manabu Ohashi
- Department of Gastroenterological Surgery, Gastroenterological Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiromichi Ito
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Souya Nunobe
- Department of Gastroenterological Surgery, Gastroenterological Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
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Oba A, Maekawa A, Makuuchi R, Inoue Y, Takahashi Y. ASO Author Reflections: Open/Robotic-Splenic Vessels Preserving Distal Pancreatectomy can be a Good Option for Post-Distal Gastrectomy Patients. Ann Surg Oncol 2023; 30:6682-6683. [PMID: 37423925 DOI: 10.1245/s10434-023-13837-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/11/2023]
Affiliation(s)
- Atsushi Oba
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
| | - Aya Maekawa
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Rie Makuuchi
- Department of Gastroenterological Surgery, Gastroenterological Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
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Oba A, Del Chiaro M, Fujii T, Okano K, Stoop TF, Wu YHA, Maekawa A, Yoshida Y, Hashimoto D, Sugawara T, Inoue Y, Tanabe M, Sho M, Sasaki T, Takahashi Y, Matsumoto I, Sasahira N, Nagakawa Y, Satoi S, Schulick RD, Yoon YS, He J, Jang JY, Wolfgang CL, Hackert T, Besselink MG, Takaori K, Takeyama Y. "Conversion surgery" for locally advanced pancreatic cancer: A position paper by the study group at the joint meeting of the International Association of Pancreatology (IAP) & Japan Pancreas Society (JPS) 2022. Pancreatology 2023; 23:712-720. [PMID: 37336669 DOI: 10.1016/j.pan.2023.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 04/10/2023] [Accepted: 06/06/2023] [Indexed: 06/21/2023]
Abstract
Locally advanced pancreatic cancer (LAPC), which progresses locally and surrounds major vessels, has historically been deemed unresectable. Surgery alone failed to provide curative resection and improve overall survival. With the advancements in treatment, reports have shown favorable results in LAPC after undergoing successful chemotherapy therapy or chemoradiation therapy followed by surgical resection, so-called "conversion surgery", at experienced high-volume centers. However, recognizing significant regional and institutional disparities in the management of LAPC, an international consensus meeting on conversion surgery for LAPC was held during the Joint Congress of the 26th Meeting of the International Association of Pancreatology (IAP) and the 53rd Annual Meeting of Japan Pancreas Society (JPS) in Kyoto in July 2022. During the meeting, presenters reported the current best multidisciplinary practices for LAPC, including preoperative modalities, best systemic treatment regimens and durations, procedures of conversion surgery with or without vascular resections, biomarkers, and genetic studies. It was unanimously agreed among the experts in this meeting that "cancer biology is surpassing locoregional anatomical resectability" in the era of effective multiagent treatment. The biology of pancreatic cancer has yet to be further elucidated, and we believe it is essential to improve the treatment outcomes of LAPC patients through continued efforts from each institution and more international collaboration. This article summarizes the agreement during the discussion amongst the experts in the meeting. We hope that this will serve as a foundation for future international collaboration and recommendations for future guidelines.
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Affiliation(s)
- Atsushi Oba
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Tokyo, Japan; Division of Surgical Oncology, Department of Surgery, University of Colorado of Medicine, Anschutz Medical Campus, Aurora, CO, USA; Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Marco Del Chiaro
- Division of Surgical Oncology, Department of Surgery, University of Colorado of Medicine, Anschutz Medical Campus, Aurora, CO, USA.
| | - Tsutomu Fujii
- Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Keiichi Okano
- Department of Gastroenterological Surgery, Kagawa University School of Medicine, Kagawa, Japan
| | - Thomas F Stoop
- Amsterdam UMC, Location University of Amsterdam, Department of Surgery, Amsterdam, the Netherlands; Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Y H Andrew Wu
- Department Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Aya Maekawa
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Tokyo, Japan; Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuta Yoshida
- Department of Surgery, Kindai University, Osaka, Japan
| | | | - Toshitaka Sugawara
- Division of Surgical Oncology, Department of Surgery, University of Colorado of Medicine, Anschutz Medical Campus, Aurora, CO, USA; Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yosuke Inoue
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Tokyo, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masayuki Sho
- Department of Surgery, Nara Medical University, Nara, Japan
| | - Takashi Sasaki
- Department of Hepato-Biliary-Pancreatic Medicine, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Tokyo, Japan
| | - Yu Takahashi
- Division of Hepatobiliary and Pancreatic Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Tokyo, Japan
| | | | - Naoki Sasahira
- Department of Hepato-Biliary-Pancreatic Medicine, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Ariake, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Sohei Satoi
- Division of Surgical Oncology, Department of Surgery, University of Colorado of Medicine, Anschutz Medical Campus, Aurora, CO, USA; Department of Surgery, Kansai Medical University, Osaka, Japan
| | - Richard D Schulick
- Division of Surgical Oncology, Department of Surgery, University of Colorado of Medicine, Anschutz Medical Campus, Aurora, CO, USA
| | - Yoo-Seok Yoon
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Jin He
- Department Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jin-Young Jang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | | | - Thilo Hackert
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Germany; Department of General, Visceral and Thoracic Surgery, University Hospital Hamburg-Eppendorf, Germany
| | - Marc G Besselink
- Amsterdam UMC, Location University of Amsterdam, Department of Surgery, Amsterdam, the Netherlands; Cancer Center Amsterdam, Amsterdam, the Netherlands
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Ueda-Hayakawa I, Tonomura K, Maekawa A, Kaneda E, Arase N, Fujimoto M. Age distribution and prevalence in different age groups of four myositis-specific autoantibodies, including anti-ARS, anti-MDA5, anti-Mi-2, and anti-TIF1γ antibodies. J Dermatol 2023; 50:1058-1062. [PMID: 36890683 DOI: 10.1111/1346-8138.16772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/06/2023] [Accepted: 02/22/2023] [Indexed: 03/10/2023]
Abstract
We accumulated the demographic information and analyzed the prevalence of myositis-specific antibodies (MSAs) in a large cohort across Japan as standard testing for MSAs becomes more widely available. This retrospective, observational, cohort study analyzed the records of individuals aged 0-99 years who are tested for serum MSAs at SRL Incorporation from January 2014 to April 2020 across Japan. An enzyme-linked immunosorbent assay testing was applied to determine the presence of anti-aminoacyl tRNA synthetase (anti-ARS), anti-Mi-2, anti-melanoma differentiation-associated gene 5 (anti-MDA5), or anti-transcriptional intermediary factor 1-γ (anti-TIF1γ) (Medical and Biological Laboratories). Anti-TIF1γ antibody was detected more in male patients than female patients. In contrast, women were predominant in patients with other MSAs. More than half of the anti-ARS or anti-TIF1γ antibody-positive patients were over 60 years old, although anti-MDA5 or anti-Mi-2-positive patients were mostly under <60 years old. Anti-MDA5 antibody-positive patients were mostly aged 40-59 years, while other MSA groups were mostly 60-79 years. Anti-MDA5 antibody was detected most frequently in the age range of 0-29 years. Anti-TIF1γ antibody was the second most commonly detected autoantibody in the age range of 0-19 years. Anti-ARS antibody was the most frequently detected autoantibody after the age of 30 years, and the frequency of anti-ARS gradually increased at more advanced ages. The second and third most detected autoantibodies were anti-MDA5 and anti-TIF1γ, respectively, in ages 30-79 years. We performed a nationwide >3-year evaluation of MSA detection in a routine diagnostic setting. This paper provides clinical images concerning the relationship between four MSA types and the distribution of sex and age in a large population.
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Affiliation(s)
- Ikuko Ueda-Hayakawa
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kyoko Tonomura
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Aya Maekawa
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Emi Kaneda
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Noriko Arase
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
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10
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Nagakawa Y, Nakata K, Nishino H, Ohtsuka T, Ban D, Asbun HJ, Boggi U, He J, Kendrick ML, Palanivelu C, Liu R, Wang SE, Tang CN, Takaori K, Abu Hilal M, Goh BKP, Honda G, Jang JY, Kang CM, Kooby DA, Nakamura Y, Shrikhande SV, Wolfgang CL, Yiengpruksawan A, Yoon YS, Watanabe Y, Kozono S, Ciria R, Berardi G, Garbarino GM, Higuchi R, Ikenaga N, Ishikawa Y, Maekawa A, Murase Y, Zimmitti G, Kunzler F, Wang ZZ, Sakuma L, Takishita C, Osakabe H, Endo I, Tanaka M, Yamaue H, Tanabe M, Wakabayashi G, Tsuchida A, Nakamura M. International expert consensus on precision anatomy for minimally invasive pancreatoduodenectomy: PAM-HBP surgery project. J Hepatobiliary Pancreat Sci 2021; 29:124-135. [PMID: 34783176 DOI: 10.1002/jhbp.1081] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND The anatomical structure around the pancreatic head is very complex and it is important to understand its precise anatomy and corresponding anatomical approach to safely perform minimally invasive pancreatoduodenectomy (MIPD). This consensus statement aimed to develop recommendations for elucidating the anatomy and surgical approaches to MIPD. METHODS Studies identified via a comprehensive literature search were classified using the Scottish Intercollegiate Guidelines Network method. Delphi voting was conducted after experts had drafted recommendations, with a goal of obtaining >75% consensus. Experts discussed the revised recommendations with the validation committee and an international audience of 384 attendees. Finalized recommendations were made after a second round of online Delphi voting. RESULTS Three clinical questions were addressed, providing six recommendations. All recommendations reached at least a consensus of 75%. Preoperatively evaluating the presence of anatomical variations and superior mesenteric artery (SMA) and superior mesenteric vein (SMV) branching patterns was recommended. Moreover, it was recommended to fully understand the anatomical approach to SMA and intraoperatively confirm the SMA course based on each anatomical landmark before initiating dissection. CONCLUSIONS MIPD experts suggest that surgical trainees perform resection based on precise anatomical landmarks for safe and reliable MIPD.
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Affiliation(s)
- Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kohei Nakata
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hitoe Nishino
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan.,Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takao Ohtsuka
- First Department of Surgery, Kagoshima University School of Medicine, Kagoshima, Japan
| | - Daisuke Ban
- Department of Hepatobiliary and Pancreatic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Horacio J Asbun
- Hepato-Biliary and Pancreas Surgery, Miami Cancer Institute, Miami, Florida, USA
| | - Ugo Boggi
- Division of General and Transplant Surgery, Pisa University Hospital, Pisa, Italy
| | - Jin He
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Chinnusamy Palanivelu
- Division of Gastrointestinal Surgery and Minimal Access Surgery, GEM Hospital and Research Centre, Coimbatore, India
| | - Rong Liu
- Faculty of Hepato-pancreato-biliary Surgery, Institute of Hepatobiliary Surgery of Chinese PLA, Key Laboratory of Digital Hepatobiliary Surgery of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | - Shin-E Wang
- Department of Surgery, Taipei Veterans General Hospital and National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chung-Ngai Tang
- Department of Surgery, Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China
| | - Kyoichi Takaori
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Mohammed Abu Hilal
- Department of Surgery, Istituto Ospedaliero Fondazione Poliambulanza, Brescia, Italy
| | - Brian K P Goh
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore City, Singapore
| | - Goro Honda
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Jin-Young Jang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Chang Moo Kang
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - David A Kooby
- Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, Georgia, USA
| | | | - Shailesh V Shrikhande
- Department of Gastrointestinal and Hepato-Pancreato-Biliary Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - Christopher L Wolfgang
- Division of Hepatobiliary and Pancreas Surgery, NYU Langone Health System, NYU Grossman School of Medicine, New York, New York, USA
| | - Anusak Yiengpruksawan
- Minimally Invasive Surgery Division, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Yoo-Seok Yoon
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yusuke Watanabe
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shingo Kozono
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Ruben Ciria
- Unit of Hepatobiliary Surgery and Liver Transplantation, University Hospital Reina Sofía, IMIBIC, Cordoba, Spain
| | - Giammauro Berardi
- Department of General Surgery and Liver Transplantation Service, San Camillo Forlanini hospital of Rome, Rome, Italy
| | - Giovanni Maria Garbarino
- Department of Medical Surgical Science and Translational Medicine, Sapienza University of Rome, Rome, Italy
| | - Ryota Higuchi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Naoki Ikenaga
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Aya Maekawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiki Murase
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Giuseppe Zimmitti
- Department of Surgery, Istituto Ospedaliero Fondazione Poliambulanza, Brescia, Italy
| | - Filipe Kunzler
- Hepato-Biliary and Pancreas Surgery, Miami Cancer Institute, Miami, Florida, USA
| | - Zi-Zheng Wang
- Faculty of Hepato-pancreato-biliary Surgery, Institute of Hepatobiliary Surgery of Chinese PLA, Key Laboratory of Digital Hepatobiliary Surgery of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | | | - Chie Takishita
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hiroaki Osakabe
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Itaru Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Masao Tanaka
- Department of Surgery, Shimonoseki City Hospital, Shimonoseki, Japan
| | - Hiroki Yamaue
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Go Wakabayashi
- Center for Advanced Treatment of Hepatobiliary and Pancreatic Diseases, Ageo Central General Hospital, Saitama, Japan
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Masafumi Nakamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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11
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Ban D, Nishino H, Ohtsuka T, Nagakawa Y, Abu Hilal M, Asbun HJ, Boggi U, Goh BKP, He J, Honda G, Jang JY, Kang CM, Kendrick ML, Kooby DA, Liu R, Nakamura Y, Nakata K, Palanivelu C, Shrikhande SV, Takaori K, Tang CN, Wang SE, Wolfgang CL, Yiengpruksawan A, Yoon YS, Ciria R, Berardi G, Garbarino GM, Higuchi R, Ikenaga N, Ishikawa Y, Kozono S, Maekawa A, Murase Y, Watanabe Y, Zimmitti G, Kunzler F, Wang ZZ, Sakuma L, Osakabe H, Takishita C, Endo I, Tanaka M, Yamaue H, Tanabe M, Wakabayashi G, Tsuchida A, Nakamura M. International Expert Consensus on Precision Anatomy for minimally invasive distal pancreatectomy: PAM-HBP Surgery Project. J Hepatobiliary Pancreat Sci 2021; 29:161-173. [PMID: 34719123 DOI: 10.1002/jhbp.1071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/29/2021] [Accepted: 10/20/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Surgical views with high resolution and magnification have enabled us to recognize the precise anatomical structures that can be used as landmarks during minimally invasive distal pancreatectomy (MIDP). This study aimed to validate the usefulness of anatomy-based approaches for MIDP before and during the Expert Consensus Meeting: Precision Anatomy for Minimally Invasive HBP Surgery (February 24, 2021). METHODS Twenty-five international MIDP experts developed clinical questions regarding surgical anatomy and approaches for MIDP. Studies identified via a comprehensive literature search were classified using Scottish Intercollegiate Guidelines Network methodology. Online Delphi voting was conducted after experts had drafted the recommendations, with the goal of obtaining >75% consensus. Experts discussed the revised recommendations in front of the validation committee and an international audience of 384 attendees. Finalized recommendations were made after a second round of online Delphi voting. RESULTS Four clinical questions were addressed, resulting in 10 recommendations. All recommendations reached at least a 75% consensus among experts. CONCLUSIONS The expert consensus on precision anatomy for MIDP has been presented as a set of recommendations based on available evidence and expert opinions. These recommendations should guide experts and trainees in performing safe MIDP and foster its appropriate dissemination worldwide.
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Affiliation(s)
- Daisuke Ban
- Department of Hepatobiliary and Pancreatic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Hitoe Nishino
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan.,Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takao Ohtsuka
- First Department of Surgery, Kagoshima University School of Medicine, Kagoshima, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Mohammed Abu Hilal
- Department of Surgery, Istituto Ospedaliero Fondazione Poliambulanza, Brescia, Italy
| | - Horacio J Asbun
- Hepato-Biliary and Pancreas Surgery, Miami Cancer Institute, Miami, Florida, USA
| | - Ugo Boggi
- Division of General and Transplant Surgery, Pisa University Hospital, Pisa, Italy
| | - Brian K P Goh
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore City, Singapore
| | - Jin He
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Goro Honda
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Jin-Young Jang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Chang Moo Kang
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | | | - David A Kooby
- Department of Surgery, Emory University School of Medicine, Winship Cancer Institute, Atlanta, Georgia, USA
| | - Rong Liu
- Faculty of Hepato-Pancreato-Biliary Surgery, Institute of Hepatobiliary Surgery of Chinese PLA, Key Laboratory of Digital Hepatobiliary Surgery of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | | | - Kohei Nakata
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Chinnusamy Palanivelu
- Division of Gastrointestinal Surgery and Minimal Access Surgery, GEM Hospital and Research Centre, Coimbatore, India
| | - Shailesh V Shrikhande
- Department of Gastrointestinal and Hepato-Pancreato-Biliary Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - Kyoichi Takaori
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Chung-Ngai Tang
- Department of Surgery, Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China
| | - Shin-E Wang
- Department of Surgery, Taipei Veterans General Hospital and National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Christopher L Wolfgang
- Division of Hepatobiliary and Pancreas Surgery, NYU Langone Health System, NYU Grossman School of Medicine, New York, New York, USA
| | - Anusak Yiengpruksawan
- Minimally Invasive Surgery Division, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Yoo-Seok Yoon
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ruben Ciria
- Unit of Hepatobiliary Surgery and Liver Transplantation, University Hospital Reina Sofía, IMIBIC, Cordoba, Spain
| | - Giammauro Berardi
- Department of General Surgery and Liver Transplantation Service, San Camillo Forlanini Hospital of Rome, Rome, Italy
| | - Giovanni Maria Garbarino
- Department of Medical Surgical Science and Translational Medicine, Sapienza University of Rome, Rome, Italy
| | - Ryota Higuchi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Naoki Ikenaga
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shingo Kozono
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Aya Maekawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiki Murase
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yusuke Watanabe
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Giuseppe Zimmitti
- Department of Surgery, Istituto Ospedaliero Fondazione Poliambulanza, Brescia, Italy
| | - Filipe Kunzler
- Hepato-Biliary and Pancreas Surgery, Miami Cancer Institute, Miami, Florida, USA
| | - Zi-Zheng Wang
- Faculty of Hepato-Pancreato-Biliary Surgery, Institute of Hepatobiliary Surgery of Chinese PLA, Key Laboratory of Digital Hepatobiliary Surgery of Chinese PLA, Chinese PLA General Hospital, Beijing, China
| | | | - Hiroaki Osakabe
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Chie Takishita
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Itaru Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Masao Tanaka
- Department of Surgery, Shimonoseki City Hospital, Shimonoseki, Japan
| | - Hiroki Yamaue
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Go Wakabayashi
- Center for Advanced Treatment of Hepatobiliary and Pancreatic Diseases, Ageo Central General Hospital, Saitama, Japan
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Masafumi Nakamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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12
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Murase Y, Kudo A, Akahoshi K, Maekawa A, Ishikawa Y, Ueda H, Ogawa K, Ono H, Tanaka S, Tanabe M. Surgery after sunitinib administration to improve survival of patients with advanced pancreatic neuroendocrine neoplasms. Ann Gastroenterol Surg 2021; 5:692-700. [PMID: 34585054 PMCID: PMC8452477 DOI: 10.1002/ags3.12458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/03/2021] [Accepted: 03/07/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Little research is available regarding the treatments combining surgical resection with systemic chemotherapy for advanced pancreatic neuroendocrine neoplasm patients. We retrospectively elucidated whether sunitinib administration before surgery in advanced pancreatic neuroendocrine neoplasm (Pan-NEN) patients increases survival. METHODS This study included 106 of 326 Pan-NEN patients with distant metastases and/or unresectable locally advanced tumors who visited our department to receive sunitinib for more than 1 mo during April 2002 to December 2019. Risk factors for overall survival (OS) and disease-free survival (DFS) were analyzed. RESULTS The median duration of preoperative sunitinib administration and observation time after sunitinib were 6 and 26.5 mo, respectively. Of 106 patients, 31 (29.2%) underwent surgery following sunitinib administration. Hepatectomy, synchronous hepatopancreatectomy, pancreatectomy, and lymphadenectomy were performed for 13, 12, 5, and 1 patient, respectively. The 5-y OS rates in the resected and nonresected groups were 88.9% and 14.1%, respectively (P < .001). In the multivariate analysis, the absence of surgical resection following sunitinib (hazard ratio [HR], 13.1; P = .001), poor differentiation (HR, 5.5; P = .007), and bilateral liver metastases (HR, 3.7; P = .048) were independent risk factors for OS, although large liver tumor volumes were more evident in the nonresected group, as patient characteristics. The median DFS was 16.1 mo in 22 patients who underwent R0/1 resections, and risk factors for postoperative recurrence were Ki-67 index >7.8% (HR, 7.4; P = .02) and R1 resection (HR, 4.4; P = .04). CONCLUSION Surgical resection after sunitinib administration improved OS in advanced Pan-NENs.
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Affiliation(s)
- Yoshiki Murase
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Atsushi Kudo
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Keiichi Akahoshi
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Aya Maekawa
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Hiroki Ueda
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Kosuke Ogawa
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Hiroaki Ono
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Shinji Tanaka
- Department of Molecular OncologyGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic SurgeryGraduate School of MedicineTokyo Medical and Dental UniversityTokyoJapan
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Maekawa A, Kudo A, Kishino M, Murase Y, Watanabe S, Ishikawa Y, Ueda H, Akahoshi K, Ogawa K, Ono H, Tanaka S, Kinowaki Y, Tanabe M. Hormonal tumor mapping for liver metastases of gastroenteropancreatic neuroendocrine neoplasms: a novel therapeutic strategy. J Cancer Res Clin Oncol 2021; 148:697-706. [PMID: 33904982 DOI: 10.1007/s00432-021-03650-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/20/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE In patients with metastatic functional gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs), it is unknown what degree of tumor reduction is required to eliminate hormonal symptoms. We aimed to reduce hormonal symptoms derived from advanced GEP-NENs by efficient minimal intervention, constructing a hormonal tumor map of liver metastases. METHODS Between 2013 and 2019, we treated 12 insulinoma or gastrinoma patients with liver metastases. Liver segments containing hormone-producing tumors were identified by injecting calcium gluconate via the hepatic arteries and monitoring the change in serum hormone concentration in the three hepatic veins. A greater-than-twofold increase in hormone concentration indicated a tumor-feeding vessel. RESULTS Cases included eight insulinomas and four gastrinomas. Primary lesions were functional in three patients and nonfunctional in 9. Nine patients showed hormonal step-up indicating the presence of functional lesions; eight showed step-up in tumor-bearing liver segments, while one with synchronous liver metastases showed step-up only in the pancreatic region. Five patients underwent surgery. Serum hormone concentration decreased markedly after removing the culprit lesions in 3; immediate improvement in hormonal symptoms was achieved in all patients. Three patients with previous surgical treatment who showed step-up underwent transcatheter arterial embolization, achieving temporary improvement of hormonal symptoms. Four patients showed unclear localization of the hormone-producing tumors; treatment options were limited, resulting in poor outcomes. CONCLUSION Hormonal tumor mapping demonstrated heterogeneity in hormone production among primary and metastatic tumors of GEP-NENs. Minimally invasive treatment based on hormonal mapping may be a viable alternative to conventional cytoreduction.
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Affiliation(s)
- Aya Maekawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Atsushi Kudo
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
| | - Mitsuhiro Kishino
- Department of Radiology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiki Murase
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Shuichi Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hiroki Ueda
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Keiichi Akahoshi
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Kosuke Ogawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hiroaki Ono
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Shinji Tanaka
- Department of Molecular Oncology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuko Kinowaki
- Department of Human Pathology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
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14
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Maekawa A, Nakagawa Y, Kakuda K, Kiyohara E, Wataya‐Kaneda M, Fujimoto M. A case of eosinophilic pustular folliculitis presenting as papuloerythroderma of Ofuji‐like eruption. J Cutan Immunol Allergy 2021. [DOI: 10.1002/cia2.12147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Aya Maekawa
- Department of Dermatology Course of Integrated Medicine Graduate School of Medicine Osaka University Osaka Japan
| | - Yukinobu Nakagawa
- Department of Dermatology Course of Integrated Medicine Graduate School of Medicine Osaka University Osaka Japan
| | - Kasumi Kakuda
- Department of Dermatology Course of Integrated Medicine Graduate School of Medicine Osaka University Osaka Japan
| | - Eiji Kiyohara
- Department of Dermatology Course of Integrated Medicine Graduate School of Medicine Osaka University Osaka Japan
| | - Mari Wataya‐Kaneda
- Department of Dermatology Course of Integrated Medicine Graduate School of Medicine Osaka University Osaka Japan
| | - Manabu Fujimoto
- Department of Dermatology Course of Integrated Medicine Graduate School of Medicine Osaka University Osaka Japan
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Nakanishi T, Maekawa A, Suzuki M, Tabata H, Sato K, Mori M, Saito I. Construction of adenovirus vectors simultaneously expressing four multiplex, double-nicking guide RNAs of CRISPR/Cas9 and in vivo genome editing. Sci Rep 2021; 11:3961. [PMID: 33597562 PMCID: PMC7889857 DOI: 10.1038/s41598-021-83259-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/01/2021] [Indexed: 12/14/2022] Open
Abstract
Simultaneous expression of multiplex guide RNAs (gRNAs) is valuable for knockout of multiple genes and also for effective disruption of a gene by introducing multiple deletions. We developed a method of Tetraplex-guide Tandem for construction of cosmids containing four and eight multiplex gRNA-expressing units in one step utilizing lambda in vitro packaging. Using this method, we produced an adenovirus vector (AdV) containing four multiplex-gRNA units for two double-nicking sets. Unexpectedly, the AdV could stably be amplified to the scale sufficient for animal experiments with no detectable lack of the multiplex units. When the AdV containing gRNAs targeting the H2-Aa gene and an AdV expressing Cas9 nickase were mixed and doubly infected to mouse embryonic fibroblast cells, deletions were observed in more than 80% of the target gene even using double-nicking strategy. Indels were also detected in about 20% of the target gene at two sites in newborn mouse liver cells by intravenous injection. Interestingly, when one double-nicking site was disrupted, the other was simultaneously disrupted, implying that two genes in the same cell may simultaneously be disrupted in the AdV system. The AdVs expressing four multiplex gRNAs could offer simultaneous knockout of four genes or two genes by double-nicking cleavages with low off-target effect.
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Affiliation(s)
- Tomoko Nakanishi
- Laboratory of Virology, Institute of Microbial Chemistry (BIKAKEN), Microbial Chemistry Foundation, Shinagawa-ku, Tokyo, 141-0021, Japan.
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan.
| | - Aya Maekawa
- Laboratory of Virology, Institute of Microbial Chemistry (BIKAKEN), Microbial Chemistry Foundation, Shinagawa-ku, Tokyo, 141-0021, Japan
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan
| | - Mariko Suzuki
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan
| | - Hirotaka Tabata
- Laboratory of Virology, Institute of Microbial Chemistry (BIKAKEN), Microbial Chemistry Foundation, Shinagawa-ku, Tokyo, 141-0021, Japan
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Kumiko Sato
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan
| | - Mai Mori
- Laboratory of Virology, Institute of Microbial Chemistry (BIKAKEN), Microbial Chemistry Foundation, Shinagawa-ku, Tokyo, 141-0021, Japan
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan
| | - Izumu Saito
- Laboratory of Virology, Institute of Microbial Chemistry (BIKAKEN), Microbial Chemistry Foundation, Shinagawa-ku, Tokyo, 141-0021, Japan
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, 108-8639, Japan
- Department of Human Genetics, Institute of National Center for Child Health and Development, Setagaya-ku, Tokyo, 157-8535, Japan
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16
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Ban D, Garbarino GM, Ishikawa Y, Honda G, Jang JY, Kang CM, Maekawa A, Murase Y, Nagakawa Y, Nishino H, Ohtsuka T, Yiengpruksawan A, Endo I, Tsuchida A, Nakamura M. Surgical approaches for minimally invasive distal pancreatectomy: A systematic review. J Hepatobiliary Pancreat Sci 2021; 29:151-160. [PMID: 33527758 DOI: 10.1002/jhbp.902] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/23/2020] [Accepted: 01/18/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Minimally invasive distal pancreatectomy (MIDP) was initially performed for benign tumors, but recently its indications have steadily broadened to encompass other conditions including pancreatic malignancies. Thorough anatomical knowledge is mandatory for precise surgery in the era of minimally invasive surgery. However, expert consensus regarding anatomical landmarks to facilitate the safe performance of MIDP is still lacking. METHODS A systematic literature search was performed using keywords to identify articles regarding the vascular anatomy and surgical approaches/techniques for MIDP. RESULTS All of the systematic reviews revealed that MIDP was not associated with an increase in postoperative complications. Moreover, most showed that MIDP resulted in less blood loss than open surgery. Regarding surgical approaches for MIDP, a standardized stepwise procedure improved surgical outcomes, including blood loss, operative time, and major complications. There are two approaches to the splenic vessels, superior and inferior; however, no study has ever directly compared them with respect to clinical outcomes. The morphology of the splenic artery affects the difficulty of approaching the artery's root. To select an appropriate dissecting layer when performing posterior resection, thorough knowledge of the anatomy of the fascia, left renal vein/artery, and left adrenal gland is needed. CONCLUSIONS In MIDP, a standardized approach and precise knowledge of anatomy facilitates safe surgery and has the advantage of a shorter learning curve. Anatomical features and landmarks are particularly important in cases of radical MIDP and splenic vessel preserving MIDP.
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Affiliation(s)
- Daisuke Ban
- Department of Hepatobiliary and Pancreatic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Giovanni Maria Garbarino
- Department of Medical Surgical Science and Translational Medicine, Sapienza University of Rome, Rome, Italy
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Goro Honda
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - Jin-Young Jang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Chang Moo Kang
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Aya Maekawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiki Murase
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hitoe Nishino
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Takao Ohtsuka
- First Department of Surgery, Kagoshima University School of Medicine, Kagoshima, Japan
| | - Anusak Yiengpruksawan
- Minimally Invasive Surgery Division, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Itaru Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Masafumi Nakamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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17
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Murase Y, Ban D, Maekawa A, Watanabe S, Ishikawa Y, Akahoshi K, Ogawa K, Ono H, Kudo A, Kudo T, Tanaka S, Tanabe M. Successful conversion surgery of distal pancreatectomy with celiac axis resection (DP-CAR) with double arterial reconstruction using saphenous vein grafting for locally advanced pancreatic cancer: a case report. Surg Case Rep 2020; 6:302. [PMID: 33259017 PMCID: PMC7708555 DOI: 10.1186/s40792-020-01082-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/24/2020] [Indexed: 12/20/2022] Open
Abstract
Background Pancreatic cancer is a disease with a poor prognosis, requiring multidisciplinary treatment combining chemotherapy and surgery for effective management. Distal pancreatectomy with celiac axis resection (DP-CAR) is a surgical intervention performed for locally advanced pancreatic cancer, but the benefit of arterial reconstruction in DP-CAR is unclear. Case presentation A 49-year-old man with pancreatic cancer was referred to our hospital. Imaging revealed a 54-mm tumor mainly in the pancreatic body, but with arterial infiltration including into the celiac, common hepatic, left gastric, splenic and gastroduodenal arteries. Distant metastases were not detected. The patient was diagnosed with unresectable locally advanced pancreatic cancer and chemoradiotherapy was planned. Three cycles of gemcitabine (1000 mg/m2) plus nab-paclitaxel (125 mg/m2) every 4 weeks were followed by irradiation (2 Gy/day, total 50 Gy over 25 days) together with S-1 administration (80 mg/m2/day). A partial response (PR) according to Response Evaluation Criteria in Solid Tumors (RECIST) was achieved, so surgical intervention was considered. Because the tumor had invaded the root of the gastroduodenal artery, we performed DP-CAR with resection of the gastroduodenal artery, followed by arterial reconstruction of the proper hepatic and left gastric arteries, anastomosed with the abdominal aorta using a great saphenous vein graft in the shape of a “Y”. Histopathology showed that 60% of tumor cells were destroyed by the chemoradiotherapy, defined as grade IIb in the Evans classification. No malignancy was detected at the surgical margin, including the celiac artery, gastroduodenal artery or pancreatic stump; thus R0 surgery was successful. S-1 (80 mg/day) was administered as adjuvant chemotherapy for 6 months. The patient is now doing well without recurrence for > 2 years after the initial treatment (more than 16 months after surgery). Conclusion For locally advanced pancreatic cancer, multidisciplinary treatment combining gemcitabine/nab-paclitaxel-based chemoradiotherapy and then DP-CAR surgery with gastroduodenal artery resection and arterial reconstruction using saphenous vein grafting enabled R0 resection in this patient and led to a favorable long-term prognosis.
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Affiliation(s)
- Yoshiki Murase
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Daisuke Ban
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
| | - Aya Maekawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shuichi Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Keiichi Akahoshi
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Kosuke Ogawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Hiroaki Ono
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Atsushi Kudo
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Toshifumi Kudo
- Division of Vascular and Endovascular Surgery, Department of Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shinji Tanaka
- Department of Molecular Oncology, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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18
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Kawasaki K, Toshimitsu K, Matano M, Fujita M, Fujii M, Togasaki K, Ebisudani T, Shimokawa M, Takano A, Takahashi S, Ohta Y, Nanki K, Igarashi R, Ishimaru K, Ishida H, Sukawa Y, Sugimoto S, Saito Y, Maejima K, Sasagawa S, Lee H, Kim HG, Ha K, Hamamoto J, Fukunaga K, Maekawa A, Tanabe M, Ishihara S, Hamamoto Y, Yasuda H, Sekine S, Kudo A, Kitagawa Y, Kanai T, Nakagawa H, Sato T. An Organoid Biobank of Neuroendocrine Neoplasms Enables Genotype-Phenotype Mapping. Cell 2020; 183:1420-1435.e21. [PMID: 33159857 DOI: 10.1016/j.cell.2020.10.023] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 07/21/2020] [Accepted: 10/12/2020] [Indexed: 01/11/2023]
Abstract
Gastroenteropancreatic (GEP) neuroendocrine neoplasm (NEN) that consists of neuroendocrine tumor and neuroendocrine carcinoma (NEC) is a lethal but under-investigated disease owing to its rarity. To fill the scarcity of clinically relevant models of GEP-NEN, we here established 25 lines of NEN organoids and performed their comprehensive molecular characterization. GEP-NEN organoids recapitulated pathohistological and functional phenotypes of the original tumors. Whole-genome sequencing revealed frequent genetic alterations in TP53 and RB1 in GEP-NECs, and characteristic chromosome-wide loss of heterozygosity in GEP-NENs. Transcriptome analysis identified molecular subtypes that are distinguished by the expression of distinct transcription factors. GEP-NEN organoids gained independence from the stem cell niche irrespective of genetic mutations. Compound knockout of TP53 and RB1, together with overexpression of key transcription factors, conferred on the normal colonic epithelium phenotypes that are compatible with GEP-NEN biology. Altogether, our study not only provides genetic understanding of GEP-NEN, but also connects its genetics and biological phenotypes.
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Affiliation(s)
- Kenta Kawasaki
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Kohta Toshimitsu
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Mami Matano
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masashi Fujita
- Laboratory for Cancer Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Masayuki Fujii
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Deparment of Surgical Oncology, The University of Tokyo, Tokyo 113-8654, Japan
| | - Kazuhiro Togasaki
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Toshiki Ebisudani
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Pulmonary Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Mariko Shimokawa
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Ai Takano
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Sirirat Takahashi
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yuki Ohta
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Kosaku Nanki
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Ryo Igarashi
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Kazuhiro Ishimaru
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Deparment of Surgical Oncology, The University of Tokyo, Tokyo 113-8654, Japan
| | - Hiroki Ishida
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yasutaka Sukawa
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Shinya Sugimoto
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yoshimasa Saito
- Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan; Division of Pharmacotherapeutics, Keio University Faculty of Pharmacy, Tokyo 105-8512, Japan
| | - Kazuhiro Maejima
- Laboratory for Cancer Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Shota Sasagawa
- Laboratory for Cancer Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Hwajin Lee
- Biomedical Knowledge Engineering Laboratory, Seoul National University, Seoul 08826, South Korea
| | - Hong-Gee Kim
- Biomedical Knowledge Engineering Laboratory, Seoul National University, Seoul 08826, South Korea
| | - Kyungsik Ha
- Biomedical Knowledge Engineering Laboratory, Seoul National University, Seoul 08826, South Korea
| | - Junko Hamamoto
- Department of Pulmonary Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Koichi Fukunaga
- Department of Pulmonary Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Aya Maekawa
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Soichiro Ishihara
- Deparment of Surgical Oncology, The University of Tokyo, Tokyo 113-8654, Japan
| | - Yasuo Hamamoto
- Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hiroyuki Yasuda
- Department of Pulmonary Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Shigeki Sekine
- Division of Pathology and Clinical Laboratories, National Cancer Center Hospital, Tokyo 104-0045, Japan
| | - Atsushi Kudo
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Yuko Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Takanori Kanai
- Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hidewaki Nakagawa
- Laboratory for Cancer Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan
| | - Toshiro Sato
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Gastroenterology, Keio University School of Medicine, Tokyo 160-8582, Japan.
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19
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Tamai M, Maekawa A, Goto N, Ge L, Nishida T, Iwahashi H, Yokomi A. Three cases of COVID-19 patients presenting with erythema. J Dermatol 2020; 47:1175-1178. [PMID: 32881072 PMCID: PMC7461553 DOI: 10.1111/1346-8138.15532] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/22/2020] [Accepted: 07/04/2020] [Indexed: 01/01/2023]
Abstract
Individuals infected with the novel coronavirus (Severe Acute Respiratory Syndrome Coronavirus 2 [SARS‐CoV‐2]) who develop coronavirus disease 2019 (COVID‐19) experience many symptoms; however, cutaneous manifestations are relatively rare. The authors encountered three patients with COVID‐19 who presented with erythema and suspected viral rash. In all cases, erythema appeared after the onset of the initial symptoms of COVID‐19. Erythema was considered to be caused by COVID‐19 and not a drug‐induced eruption because, in all cases, erythema was relieved merely by external medicine and oral antihistamines, without discontinuing the original medication. The authors’ hospital accepted 69 COVID‐19 patients between 22 February 2020 and 31 May 2020 and, of these, three (4.3%) exhibited eruptions, and all cases presented erythema. Except for seven patients who exhibited positive nasopharyngeal swab tests for SARS‐CoV‐2 RNA but no symptoms, three (4.8%) of the remaining 62 patients exhibited erythema. Although various types of eruptions have been reported in patients with COVID‐19, erythema was the only type in our patients. Erythema in the three patients exhibited many similarities to that previously reported in COVID‐19 patients, particularly in the manner it appeared and disappeared. For these reasons, these three cases were considered typical examples of erythema in patients with COVID‐19. Considering previous studies and the three cases reported here, there is a high probability that SARS‐CoV‐2 can cause erythema.
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Affiliation(s)
- Masakazu Tamai
- Departments of, Department of, Dermatology, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - Aya Maekawa
- Departments of, Department of, Dermatology, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - Noriko Goto
- Departments of, Department of, Dermatology, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - Lindun Ge
- Department of, Neurology, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - Tsutomu Nishida
- Department of, Gastroenterology, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - Hiromi Iwahashi
- Department of, Internal Medicine, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - Akinori Yokomi
- Departments of, Department of, Dermatology, Toyonaka Municipal Hospital, Toyonaka, Japan
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20
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Maekawa A, Tanemura A, Tonomura K, Nakagawa Y, Kiyohara E, Wataya‐Kaneda M, Namikawa K, Yamazaki N, Fujimoto M. A case of malignant melanoma with shrinking metastases after sequential severe irAEs. J Cutan Immunol Allergy 2020. [DOI: 10.1002/cia2.12104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Aya Maekawa
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
| | - Atsushi Tanemura
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
| | - Kyoko Tonomura
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
| | - Yukinobu Nakagawa
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
| | - Eiji Kiyohara
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
| | - Mari Wataya‐Kaneda
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
| | - Kenjiro Namikawa
- Department of Dermatological Oncology National Cancer Center Hospital Chuo‐ku Japan
| | - Naoya Yamazaki
- Department of Dermatological Oncology National Cancer Center Hospital Chuo‐ku Japan
| | - Manabu Fujimoto
- Department of Dermatology Osaka University Graduate School of Medicine Suita Japan
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21
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Nakanishi T, Maekawa A, Tabata H, Yoshioka T, Pei Z, Sato K, Mori M, Kato M, Saito I. Highly multiplex guide RNA expression units of CRISPR/Cas9 were completely stable using cosmid amplification in a novel polygonal structure. J Gene Med 2019; 21:e3115. [PMID: 31348845 PMCID: PMC7003504 DOI: 10.1002/jgm.3115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 07/07/2019] [Accepted: 07/22/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Genome editing using the CRISPR/Cas9 system is now well documented in basic studies and is expected to be applied to gene therapy. Simultaneous expression of multiplex guide RNA (gRNA) and Cas9/Cas9 derivative is attractive for the efficient knockout of genes and a safe double-nicking strategy. However, such use is limited because highly multiplex gRNA-expressing units are difficult to maintain stably in plasmids as a result of deletion via homologous recombination. METHODS Lambda in vitro packaging was used instead of transformation for the construction and preparation of large, cos-containing plasmid (cosmid). Polymerase chain reaction fragments containing multiplex gRNA units were obtained using the Four-guide Tandem method. Transfection was performed by lipofection. RESULTS We constructed novel cosmids consisting of linearized plasmid-DNA fragments containing up to 16 copies of multiplex gRNA-expressing units as trimer or tetramer (polygonal cosmids). These cosmids behaved as if they were monomer plasmids, and multiplex units could stably be maintained and amplified with a lack of deletion. Surprisingly, the deleted cosmid was removed out simply by amplifying the cosmid stock using lambda packaging. The DNA fragments containing multiplex gRNA-units and Cas9 were transfected to 293 cells and were found to disrupt the X gene of hepatitis B virus by deleting a large region between the predicted sites. CONCLUSIONS We present a simple method for overcoming the problem of constructing plasmids stably containing multiplex gRNA-expressing units. The method may enable the production of very large amounts of DNA fragments expressing intact, highly-multiplex gRNAs and Cas9/Cas9 derivatives for safe and efficient genome-editing therapy using non-viral vectors.
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Affiliation(s)
- Tomoko Nakanishi
- Laboratory of VirologyInstitute of Microbial Chemistry (BIKAKEN), Microbial Chemistry FoundationTokyoJapan
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
| | - Aya Maekawa
- Laboratory of VirologyInstitute of Microbial Chemistry (BIKAKEN), Microbial Chemistry FoundationTokyoJapan
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
| | - Hirotaka Tabata
- Laboratory of VirologyInstitute of Microbial Chemistry (BIKAKEN), Microbial Chemistry FoundationTokyoJapan
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
- Department of Pharmaceutical Engineering, Faculty of EngineeringToyama Prefectural UniversityToyamaJapan
| | - Takashi Yoshioka
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
- Department of Urology, Graduate School of MedicineOkayama UniversityOkayamaJapan
| | - Zheng Pei
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
| | - Kumiko Sato
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
| | - Mai Mori
- Laboratory of VirologyInstitute of Microbial Chemistry (BIKAKEN), Microbial Chemistry FoundationTokyoJapan
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
| | - Masaya Kato
- Laboratory of VirologyInstitute of Microbial Chemistry (BIKAKEN), Microbial Chemistry FoundationTokyoJapan
- PharmaBio Corporation Co. Ltd., Kawasaki plantKawasakiJapan
| | - Izumu Saito
- Laboratory of VirologyInstitute of Microbial Chemistry (BIKAKEN), Microbial Chemistry FoundationTokyoJapan
- Laboratory of Molecular Genetics, Institute of Medical ScienceUniversity of TokyoTokyoJapan
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22
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Maekawa A, Arase N, Tamai K, Nomura T, Kiyohara E, Wataya-Kaneda M, Arase H, Katayama I, Fujimoto M. Case of epidermolytic ichthyosis with impairment of pulmonary function and exacerbated skin manifestations in a late middle-aged adult. J Dermatol 2019; 46:e480-e482. [PMID: 31502298 DOI: 10.1111/1346-8138.15077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Aya Maekawa
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Noriko Arase
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Katsuto Tamai
- Stem Cell Therapy Science, Osaka University Graduate School of Medicine, Suita, Japan
| | - Toshifumi Nomura
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Eiji Kiyohara
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Mari Wataya-Kaneda
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hisashi Arase
- Laboratory of Immunochemistry, WPI Immunology Frontier Research Center, Osaka University, Suita, Japan.,Department of Immunochemistry, Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Ichiro Katayama
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Osaka University Graduate School of Medicine, Suita, Japan
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23
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Kuzumaki N, Suda Y, Iwasawa C, Narita M, Sone T, Watanabe M, Maekawa A, Matsumoto T, Akamatsu W, Igarashi K, Tamura H, Takeshima H, Tawfik VL, Ushijima T, Hattori N, Okano H, Narita M. Cell-specific overexpression of COMT in dopaminergic neurons of Parkinson’s disease. Brain 2019; 142:1675-1689. [DOI: 10.1093/brain/awz084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 01/16/2019] [Accepted: 02/03/2019] [Indexed: 12/27/2022] Open
Affiliation(s)
- Naoko Kuzumaki
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160–8582, Japan
| | - Yukari Suda
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Chizuru Iwasawa
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Michiko Narita
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Takefumi Sone
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160–8582, Japan
| | - Moe Watanabe
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Aya Maekawa
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, 4–6–1 Shirokanedai, Minato-ku, Tokyo 108–8639, Japan
| | - Takuya Matsumoto
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160–8582, Japan
| | - Wado Akamatsu
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160–8582, Japan
- Center for Genomic and Regenerative Medicine, Juntendo University, School of Medicine, Bunkyo-ku, Tokyo 113–8431, Japan
| | - Katsuhide Igarashi
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Hideki Tamura
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Hideyuki Takeshima
- Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Vivianne L Tawfik
- Division of Epigenomics, National Cancer Center Research Institute, Tsukiji, Chuo-ku, Tokyo 104–0045, Japan
| | - Toshikazu Ushijima
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
- Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Nobutaka Hattori
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University, Stanford, CA 94305, USA
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160–8582, Japan
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
| | - Minoru Narita
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo 142–8501, Japan
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Suda Y, Kuzumaki N, Sone T, Narita M, Tanaka K, Hamada Y, Iwasawa C, Shibasaki M, Maekawa A, Matsuo M, Akamatsu W, Hattori N, Okano H, Narita M. Down-regulation of ghrelin receptors on dopaminergic neurons in the substantia nigra contributes to Parkinson's disease-like motor dysfunction. Mol Brain 2018; 11:6. [PMID: 29458391 PMCID: PMC5819262 DOI: 10.1186/s13041-018-0349-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/22/2018] [Indexed: 12/21/2022] Open
Abstract
Ghrelin exerts a wide range of physiological actions throughout the body and appears to be a promising target for disease therapy. Endogenous ghrelin receptors (GHSRs) are present in extrahypothalamic sites including the substantia nigra pars compacta (SNc), which is related to phenotypic dysregulation or frank degeneration in Parkinson’s disease (PD). Here we found a dramatic decrease in the expression of GHSR in PD-specific induced pluripotent stem cell (iPSC)-derived dopaminergic (DAnergic) neurons generated from patients carrying parkin gene (PARK2) mutations compared to those from healthy controls. Consistently, a significant decrease in the expression of GHSR was found in DAnergic neurons of isogenic PARK2-iPSC lines that mimicked loss of function of the PARK2 gene through CRISPR Cas9 technology. Furthermore, either intracerebroventricular injection or microinjection into the SNc of the selective GHSR1a antagonist [D-Lys3]-GHRP6 in normal mice produced cataleptic behaviors related to dysfunction of motor coordination. These findings suggest that the down-regulation of GHSRs in SNc-DA neurons induced the initial dysfunction of DA neurons, leading to extrapyramidal disorder under PD.
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Affiliation(s)
- Yukari Suda
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Naoko Kuzumaki
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan. .,Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Takefumi Sone
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Michiko Narita
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Kenichi Tanaka
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yusuke Hamada
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Chizuru Iwasawa
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Masahiro Shibasaki
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Aya Maekawa
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Miri Matsuo
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Wado Akamatsu
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.,Center for Genomic and Regenerative Medicine, Juntendo University, School of Medicine, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Bunkyo, Tokyo, 113-8421, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan. .,Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan.
| | - Minoru Narita
- Department of Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan. .,Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan.
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25
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Kawabata C, Hamanoue S, Maekawa A, Toyoda M, Miyata A, Uekihara S. Communication with Peritoneal Dialysis Patients Post-Kumamoto Earthquake. Perit Dial Int 2017; 37:484-485. [PMID: 28676517 DOI: 10.3747/pdi.2016.00310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- C Kawabata
- Japanese Red Cross Kumamoto Hospital, Kumamoto, Japan
| | - S Hamanoue
- Japanese Red Cross Kumamoto Hospital, Kumamoto, Japan
| | - A Maekawa
- Japanese Red Cross Kumamoto Hospital, Kumamoto, Japan
| | - M Toyoda
- Japanese Red Cross Kumamoto Hospital, Kumamoto, Japan
| | - A Miyata
- Japanese Red Cross Kumamoto Hospital, Kumamoto, Japan
| | - S Uekihara
- Japanese Red Cross Kumamoto Hospital, Kumamoto, Japan
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Nagai K, Tsujii Y, Matsui T, Yoshii S, Fujinaga T, Maekawa A, Inoue T, Hayashi Y, Shinzaki S, Iijima H, Tsujii M, Morii E, Takehara T. Esophagogastric junctional adenocarcinoma originating from endoscopically unrecognizable Barrett's epithelium. Dis Esophagus 2016; 29:1164-1166. [PMID: 26228204 DOI: 10.1111/dote.12396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- K Nagai
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Y Tsujii
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Matsui
- Department of Pathology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - S Yoshii
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Fujinaga
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - A Maekawa
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Inoue
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Y Hayashi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - S Shinzaki
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - H Iijima
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Tsujii
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - E Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Takehara
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Kurokawa Y, Takahashi M, Maekawa A, Hayashi Y. Promoting Effect of Metal Compounds on Liver, Stomach, Kidney, Pancreas, and Skin Carcinogenesis. ACTA ACUST UNITED AC 2016. [DOI: 10.3109/10915818909009112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Systemic studies have been completed in Japan to detect those chemicals in the environment that act as promoters. Well-established two-stage models for liver, stomach, kidney, pancreas, and skin carcinogenesis were employed to detect the promoting effect of Zn Cl2, Cr Cl2, Cd Cl2, Ni Cl2, and Hg Cl2. As a result, Ni Cl2 was found to act as a promoter in renal carcinogenesis.
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Affiliation(s)
- Y. Kurokawa
- Division of Toxicology Biological Safety Research Center National Institute of Hygienic Sciences 1-18-1 Kamiyoga Setagaya-ku, 158 Tokyo, Japan
| | - M. Takahashi
- Division of Toxicology Biological Safety Research Center National Institute of Hygienic Sciences 1-18-1 Kamiyoga Setagaya-ku, 158 Tokyo, Japan
| | - A. Maekawa
- Division of Toxicology Biological Safety Research Center National Institute of Hygienic Sciences 1-18-1 Kamiyoga Setagaya-ku, 158 Tokyo, Japan
| | - Y. Hayashi
- Division of Toxicology Biological Safety Research Center National Institute of Hygienic Sciences 1-18-1 Kamiyoga Setagaya-ku, 158 Tokyo, Japan
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28
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Kimura T, Wang L, Tabu K, Tsuda M, Tanino M, Maekawa A, Nishihara H, Hiraga H, Taga T, Oda Y, Tanaka S. Identification and analysis of CXCR4-positive synovial sarcoma-initiating cells. Oncogene 2015; 35:3932-43. [DOI: 10.1038/onc.2015.461] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 10/21/2015] [Accepted: 10/30/2015] [Indexed: 12/13/2022]
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29
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Odashima S, Ogiu T, Maekawa A. Leukemias induced by 1-butyl- and 1-propyl-1-nitrosoureas in the rat. Bibl Haematol 2015:107-15. [PMID: 1057941 DOI: 10.1159/000397525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The leukemogenic effect of 1-propyl- and 1-butyl-1-nitrosourea (PNU and BNU) was studied in Donryu and Sprague-Dawley rats, which received the chemical in their drinking water. BNU produced leukemia in 42 out of 46 (91%) of the Donryu rats, and the majority of the induced leukemia were myeloblastic type. In the Sprague-Dawley rats, the incidence of leukemia was 70% (47/67), of which 37%(13/35) were myelocytic leukemia, although the development of myeloblastic leukemia was still predominant (54%, 19/35). The leukemogenic activity of PNU was slightly lower than that of BNU; it produced leukemia in 64% (61/95) of the Donryu rats. The predominant type of induced leukemia was myelocytic leukemia (59%, 36/61). Therefore, it was demonstrated through the series of experiments using BNU and PNU that the strength of leukemogenic activity has a close relationship to the types of leukemia induced in animals. Both BNU and PNU, however, provide excellent disease models of myelogeneous leukemia in the human being.
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Suzuki M, Kondo S, Pei Z, Maekawa A, Saito I, Kanegae Y. Preferable sites and orientations of transgene inserted in the adenovirus vector genome: The E3 site may be unfavorable for transgene position. Gene Ther 2015; 22:421-9. [PMID: 25588742 PMCID: PMC4424821 DOI: 10.1038/gt.2014.124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 11/05/2014] [Accepted: 11/20/2014] [Indexed: 12/15/2022]
Abstract
The adenovirus vector (AdV) can carry two transgenes in its genome, the therapeutic gene and a reporter gene, for example. The E3 insertion site has often been used for the expression of the second transgene. A transgene can be inserted at six different sites/orientations: E1, E3 and E4 sites, and right and left orientations. However, the best combination of the insertion sites and orientations as for the titers and the expression levels has not sufficiently been studied. We attempted to construct 18 AdVs producing GFP or LacZ gene driven by the EF1α promoter and Cre gene driven by the α-fetoprotein promoter. The AdV containing GFP gene at E3 in the rightward orientation (GFP-E3R) was not available. The LacZ-E3R AdV showed 20-fold lower titer and 50-fold lower level of fiber mRNA than the control E1L AdV. Notably, we found four aberrantly spliced mRNAs in the LacZ-E3L/R AdVs, probably explaining their very low titers. Although the transgene expression levels in the E4R AdVs were about threefold lower than those in the E1L AdVs, their titers are comparable with that of E1L AdVs. We concluded that E1L and E4R sites/orientations are preferable for expressing the main target gene and a second gene, respectively.
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Affiliation(s)
- M Suzuki
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - S Kondo
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Z Pei
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - A Maekawa
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - I Saito
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Y Kanegae
- Laboratory of Molecular Genetics, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
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31
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Tsuda H, Maekawa A, Ishihara M. Upward and Downward Gaze Palsy, Convergence Palsy, Concomitant Skew Deviation and Bilateral Light-Near Dissociation Due to a Unilateral Rostral and Dorsal Midbrain Infarction. J Med Cases 2015. [DOI: 10.14740/jmc2349w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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32
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Maekawa A, Momoshima N, Sugihara S, Ohzawa R, Nakama A. Analysis of 134Cs and 137Cs distribution in soil of Fukushima prefecture and their specific adsorption on clay minerals. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3575-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Maekawa A, Pei Z, Suzuki M, Fukuda H, Ono Y, Kondo S, Saito I, Kanegae Y. Efficient production of adenovirus vector lacking genes of virus-associated RNAs that disturb cellular RNAi machinery. Sci Rep 2013; 3:1136. [PMID: 23355950 PMCID: PMC3555086 DOI: 10.1038/srep01136] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Accepted: 12/27/2012] [Indexed: 11/23/2022] Open
Abstract
First-generation adenovirus vectors (FG AdVs) are widely used in basic studies and gene therapy. However, virus-associated (VA) RNAs that act as small-interference RNAs are indeed transcribed from the vector genome. These VA RNAs can trigger the innate immune response. Moreover, VA RNAs are processed to functional viral miRNAs and disturb the expressions of numerous cellular genes. Therefore, VA-deleted AdVs lacking VA RNA genes would be advantageous for basic studies, both in vitro and in vivo. Here, we describe an efficient method of producing VA-deleted AdVs. First, a VA RNA-substituted “pre-vector” lacking the original VA RNA genes but alternatively possessing an intact VA RNA region flanked by a pair of FRTs was constructed. VA-deleted AdVs were efficiently obtained by infecting 293hde12 cells, which highly express FLP, with the pre-vector. The resulting transduction titers of VA-deleted AdVs were sufficient for practical use. Therefore, VA-deleted AdVs may be substitute for current FG AdV.
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Affiliation(s)
- Aya Maekawa
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan
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Kondo S, Maekawa A, Saito I, Kanegae Y. [Recent progress in adenovirus vectors: focusing on VA-deleted AdV]. Uirusu 2013; 63:155-164. [PMID: 25366050 DOI: 10.2222/jsv.63.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
First-generation adenovirus vectors (FG-AdVs) are widely used because transduction efficiency of the vectors is very high. However, severe immune responses especially to the liver have been a serious problem of this vector. We succeeded to identify a viral protein that cause the immune responses and reported ''low-inflammatory AdVs'' that mostly solve this problem. However, to develop the ultimate form of this vector, it is necessary to remove virus-associated RNA (VA RNA) genes from the AdV vector genome. VA RNAs are transcribed by polymerase III; they are not essential for viral growth but have important roles to make appropriate circumstances for this virus. Large amount of VA RNAs are required in the late phase to support viral growth. Hence it is difficult to establish 293 cell lines that can support replication of AdVs lacking VA RNA genes (VA-deleted AdVs) supplying sufficient amount of VA RNA in trans. Recently we have developed a method for efficient production of VA-deleted AdVs and succeeded to obtain a high titer of VA-deleted AdVs. Then we construct VA-deleted AdVs expressing shRNA that knockdown the replication of hepatitis C virus (HCV). In fact, VA-deleted AdVs expressing these shRNAs suppressed HCV replication more effectively than conventional FG-AdV. Therefore, we showed that VA RNAs expressed from FG-AdVs probably compete with shRNA in the maturation pathway and reduce the effect of shRNAs. We think that VA-deleted AdV may substitute for current FG-AdVs and become a standard AdV.
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Affiliation(s)
- Saki Kondo
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo
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Kobashi G, Hata A, Ohta K, Sugimori H, Okamoto K, Maekawa A. P1-456 A case-control study to detect genetic and acquired risk factors for paediatric inflammatory bowel disease. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976g.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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36
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Kanegae Y, Terashima M, Kondo S, Fukuda H, Maekawa A, Pei Z, Saito I. High-level expression by tissue/cancer-specific promoter with strict specificity using a single-adenoviral vector. Nucleic Acids Res 2010; 39:e7. [PMID: 21051352 PMCID: PMC3025582 DOI: 10.1093/nar/gkq966] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tissue-/cancer-specific promoters for use in adenovirus vectors (AdVs) are valuable for elucidating specific gene functions and for use in gene therapy. However, low activity, non-specific expression and size limitations in the vector are always problems. Here, we developed a 'double-unit' AdV containing the Cre gene under the control of an α-fetoprotein promoter near the right end of its genome and bearing a compact 'excisional-expression' unit consisting of a target cDNA 'upstream' of a potent promoter between two loxPs near the left end of its genome. When Cre was expressed, the expression unit was excised as a circular molecule and strongly expressed. Undesired leak expression of Cre during virus preparation was completely suppressed by a dominant-negative Cre and a short-hairpin RNA against Cre. Using this novel construct, a very strict specificity was maintained while achieving a 40- to 90-fold higher expression level, compared with that attainable using a direct specific promoter. Therefore, the 'double-unit' AdV enabled us to produce a tissue-/cancer-specific promoter in an AdV with a high expression level and strict specificity.
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Affiliation(s)
- Yumi Kanegae
- Laboratory of Molecular Genetics, Institute of Medical Science, University of Tokyo, Tokyo, Japan.
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Sakuratani Y, Sato S, Nishikawa S, Yamada J, Maekawa A, Hayashi M. Category analysis of the substituted anilines studied in a 28-day repeat-dose toxicity test conducted on rats: correlation between toxicity and chemical structure. SAR QSAR Environ Res 2008; 19:681-696. [PMID: 19061084 DOI: 10.1080/10629360802550689] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In order to establish methods for estimating the repeat-dose toxicity of chemicals on the basis of their chemical structure, an analysis of a category formed for 14 substituted anilines was conducted. This analysis was based on the results of a 28-day repeat-dose toxicity test conducted on rats in which these 14 chemicals were studied. The intensities of the toxicological effects of the 14 substituted anilines on each target organ at specific dosages were described using the values and histopathological findings of the test. The results clarified the characteristics of the chemical structure that induced specific toxicological effects on specific targets at a particular dosage. Hemolysis was the most frequently observed finding in the test reports in the case of the 14 substituted anilines. Strong linear correlations between the dosage and proportion of decrease in the erythrocyte count were found in the case of chemicals that induced strong hemolytic effects. In particular, for dimethylanilines, strong linear correlations were found between the calculated hemoglobin-binding index and the proportion of decrease in the erythrocyte count at a particular dosage. Thus, the results of our analysis demonstrate that it is possible to correlate the values obtained for substituted anilines from 28-day repeat-dose toxicity tests with their quantitatively determined molecular properties. The intensity of hemolysis and the effects on the liver tended to be low in the case of chemicals with a high water solubility, such as aminophenols and benzene sulfonic acids. However, a similar trend was not observed in the case of the effects of these chemicals on the kidney.
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Affiliation(s)
- Y Sakuratani
- Chemical Management Center, National Institute of Technology and Evaluation, Tokyo, Japan.
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Maekawa A, Usui A, Ueda Y. [Surgical repair of traumatic rupture of the discending aorta through 'L'-thoracotomy]. Kyobu Geka 2007; 60:1142-1145. [PMID: 18078078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Acute blunt aortic rupture occurs frequently at the aortic isthmus and emergency operation is usually required. A 33-year-old man was suffered with blunt traumatic thoracic aortic injury caused by traffic accident and emergency operation was performed due to hemodynamic instability. The patient was operated through 'L'-thoracotomy (upper part sternotomy and antero-lateral thoracotomy). Cardiopulmonary bypass was initiated with right femoral vein drainage and right femoral arterial return and converted to standard cardiopulmonary bypass with the ascending aorta return and right atrium appendage drainage when the discending aorta was re-ruptured. It stabilized the circulation of upper body, especially brain. The post-operative course was uneventful. The 'L'-thoracotomy can provide good operative exposure for the aortic isthmus and stabilize the circulation of the brain with standard cardiopulmonary bypass and clamping the descending aorta.
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Affiliation(s)
- A Maekawa
- Department of Cardiac Surgery, Toyota Memorial Hospital, Toyota, Japan
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39
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Yamamoto T, Maekawa A, Ishizaki Y, Tanaka R, Owari M, Nojima M, Nihei Y. Shave-off depth profiling of dendritic short-circuit growth caused by ion migration. SURF INTERFACE ANAL 2006. [DOI: 10.1002/sia.2440] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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Wakida N, Kitamura K, Tuyen DG, Maekawa A, Miyoshi T, Adachi M, Shiraishi N, Ko T, Ha V, Nonoguchi H, Tomita K. Inhibition of prostasin-induced ENaC activities by PN-1 and regulation of PN-1 expression by TGF-beta1 and aldosterone. Kidney Int 2006; 70:1432-8. [PMID: 16941024 DOI: 10.1038/sj.ki.5001787] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Prostasin has been shown to regulate sodium handling in the kidney. Recently, a serine protease inhibitor, protease nexin-1 (PN-1), was identified as an endogenous inhibitor for prostasin. Therefore, we hypothesized that PN-1 may regulate sodium reabsorption by reducing prostasin activity, and that expression of PN-1 was regulated by transforming growth factor-beta1 (TGF-beta1) or aldosterone, like prostasin. cRNAs for epithelial sodium channel (ENaC), prostasin, and PN-1 were expressed in Xenopus oocytes, and the amiloride-sensitive sodium currents (I(Na)) were measured. The effect of TGF-beta1 and aldosterone on the mRNA and protein abundance of PN-1 and ENaC was detected by real-time polymerase chain reaction and immunoblotting in M-1 cells. Expression of PN-1 substantially decreased prostasin-induced I(Na) by approximately 68% in oocytes. Treatment of M-1 cells with 20 ng/ml TGF-beta1 significantly increased protein expression of PN-1 by 3.8+/-0.5-fold, whereas administration of 10(-6) M aldosterone markedly decreased protein expression of PN-1 to 53.7+/-6.7%. Basolateral, but not apical, application of TGF-beta1 significantly reduced I(eq). To elucidate the involvement of PN-1 in basal ENaC activity, we silenced the expression of PN-1 by using short-interfering RNA. This increased I(eq) by 1.6+/-0.1-fold. Our study indicates that PN-1 could have a natriuretic role by inhibiting prostasin activity and suggests the possibility that aldosterone and TGF-beta reciprocally regulate the expression of PN-1 in renal epithelial cells contributing to salt retention or natriuresis, respectively by an additional mechanism. PN-1 could represent a new factor that contributes to regulation of ENaC activity in the kidney.
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Affiliation(s)
- N Wakida
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
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Nakamura K, Ishikawa Y, Utsumi K, Iigusa H, Tanaka R, Ishizaki Y, Yamamoto T, Maekawa A, Owari M, Nojima M, Nihei Y. Shave-off depth profiling of transparent conductive films and data analysis of the profile. SURF INTERFACE ANAL 2006. [DOI: 10.1002/sia.2436] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yoshida M, Kitani T, Takenaka A, Kudoh K, Katsuda SI, Taya K, Kurokawa Y, Maekawa A. Lack of effects of oxolinic acid on spermatogenesis in young adult and aged Wistar rats. Food Chem Toxicol 2002; 40:1815-25. [PMID: 12419696 DOI: 10.1016/s0278-6915(02)00168-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Prolonged treatment with oxolinic acid is known to elevate serum luteinizing hormone (LH) levels, resulting in induction of Leydig cell tumors in rats. In a carcinogenicity study of the compound, tubular atrophy of the testis was also increased, suggesting that oxolinic acid might affect spermatogenesis. The present study was therefore performed using rats of different ages with a particular focus on seminiferous tubule alteration and its relation to Leydig cell proliferation. Young adult (7 weeks of age) and aged (52 weeks of age) males of the Wistar strain were administered oxolinic acid at dietary concentrations of 0 (basal diet), 300, 1000 or 3000 ppm for 4 (all groups), 13 (0 and 3000 ppm groups), 26 (0 and 3000 ppm groups), or 52 weeks (0 and 3000 ppm groups of aged rats). Serum LH levels were elevated in both young adult and aged animals treated with 3000 ppm at most examined time points. While testosterone levels were also increased at the early time points in young adult, this was not the case in older animals. Elevation of the incidences of foci and/or focal hyperplasia of Leydig cells was noted but was only slight limited to aged rats treated with 3000 ppm after 26 weeks. Furthermore, it did not appear to be related to seminiferous tubular alteration. No treatment-related histopathological abnormalities could be detected in any treatment group, and morphometrical stage analysis of spermatogenesis conducted for the control and 3000 ppm-treated groups demonstrated no lesions. These results provide strong evidence that prolonged oxolinic treatment does not directly induce testicular toxicity or altered spermatogenesis in either young adult or aged rats, except for slight increase of Leydig cell proliferative lesions caused by elevated serum LH levels. Aged rats might have higher sensitivity than young adults to the effects of oxolinic acid on proliferative lesions of Leydig cells.
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Affiliation(s)
- M Yoshida
- Department of Pathology, Sasaki Institute, 2-2, Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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Muraishi S, Niwa N, Maekawa A, Kumai S, Sato A. Strengthening of Al-Cu single crystals by stress-oriented Guinier-Preston zones. ACTA ACUST UNITED AC 2002. [DOI: 10.1080/01418610208240064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Mellor EA, Maekawa A, Austen KF, Boyce JA. Cysteinyl leukotriene receptor 1 is also a pyrimidinergic receptor and is expressed by human mast cells. Proc Natl Acad Sci U S A 2001; 98:7964-9. [PMID: 11438743 PMCID: PMC35451 DOI: 10.1073/pnas.141221498] [Citation(s) in RCA: 132] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The cysteinyl leukotrienes (cys-LTs) LTC(4), LTD(4), and LTE(4) are a class of peptide-conjugated lipids formed from arachidonic acid and released during activation of mast cells (MCs). We now report that human cord-blood-derived MCs (hMCs) express the CysLT1 receptor, which responds not only to inflammation-derived cys-LTs, but also to a pyrimidinergic ligand, UDP. hMCs express both CysLT1 protein and transcript, and respond to LTC(4), LTD(4), and UDP with concentration-dependent calcium fluxes, each of which is blocked by a competitive CysLT1 receptor antagonist, MK571. Stably transfected Chinese hamster ovary cells expressing the CysLT1 receptor also exhibit MK571-sensitive calcium flux to all three agonists. Both hMCs and CysLT1 transfectants stimulated with UDP are desensitized to LTC(4), but only partially to LTD(4). Priming of hMCs with IL-4 for 5 days enhances their sensitivity to each agonist, but preferentially lowers their threshold for activation by LTC(4) and UDP (approximately 3 log(10)-fold shifts in dose-response for each agonist) over LTD(4) (1.3 log(10)-fold shift), without altering CysLT1 receptor mRNA or surface protein expression, implying the likely induction of a second receptor with CysLT1-like dual ligand specificity. hMCs thus express the CysLT1 receptor, and possibly a closely related IL-4-inducible receptor, which mediate dual activation responses to cys-LTs and UDP, providing an apparent intersection linking the inflammatory and neurogenic elements of bronchial asthma.
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Affiliation(s)
- E A Mellor
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA 02115, USA
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Kanaoka Y, Maekawa A, Penrose JF, Austen KF, Lam BK. Attenuated zymosan-induced peritoneal vascular permeability and IgE-dependent passive cutaneous anaphylaxis in mice lacking leukotriene C4 synthase. J Biol Chem 2001; 276:22608-13. [PMID: 11319240 DOI: 10.1074/jbc.m103562200] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Leukotriene C(4) synthase (LTC(4)S), the terminal 5-lipoxygenase pathway enzyme that is responsible for the biosynthesis of cysteinyl leukotrienes, has been deleted by targeted gene disruption to define its tissue distribution and integrated pathway function in vitro and in vivo. The LTC(4)S (-/-) mice developed normally and were fertile. LTC(4)S activity, assessed by conjugation of leukotriene (LT) A(4) methyl ester with glutathione, was absent from tongue, spleen, and brain and > or = 90% reduced in lung, stomach, and colon of the LTC(4)S (-/-) mice. Bone marrow-derived mast cells (BMMC) from the LTC(4)S (-/-) mice provided no LTC(4) in response to IgE-dependent activation. Exocytosis and the generation of prostaglandin D(2), LTB(4), and 5-hydroxyeicosatetraenoic acid by BMMC from LTC(4)S (-/-) mice and LTC(4)S (+/+) mice were similar, whereas the degraded product of LTA(4), 6-trans-LTB(4), was doubled in BMMC from LTC(4)S (-/-) mice because of lack of utilization. The zymosan-elicited intraperitoneal extravasation of plasma protein and the IgE-mediated passive cutaneous anaphylaxis in the ear were significantly diminished in the LTC(4)S (-/-) mice. These observations indicate that LTC(4)S, but not microsomal or cytosolic glutathione S-transferases, is the major LTC(4)-producing enzyme in tissues and that its integrated function includes mediation of increased vascular permeability in either innate or adaptive immune host inflammatory responses.
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Affiliation(s)
- Y Kanaoka
- Department of Medicine, Harvard Medical School and the Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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Takahashi M, Nishimura S, Miyajima K, Sasahara K, Yoshida M, Ando J, Maekawa A. Time-dependent promotion activity of 17beta-estradiol on uterine carcinogenesis in mice initiated with N-ethyl-N-nitrosourea. Cancer Lett 2001; 165:123-30. [PMID: 11275360 DOI: 10.1016/s0304-3835(00)00709-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The time-dependent promotion activity of 17beta-estradiol (E2) by initiation with N-ethyl-N-nitrosourea (ENU) on induction of mouse uterine endometrial proliferative lesions was examined. Illumination-induced persistent estrous female CD-1 mice were divided into five groups at 9 weeks of age. At 10 weeks of age, mice in all groups (n=25) were given a single intra-uterine administration of ENU (50 mg/kg), dissolved in polyethylene glycol. Animals in Groups 2 to 5 were then implanted s.c. with an E2 pellet at 9, 11, 14 and 17 weeks of age. The implants were left in place for 8 weeks and then taken out. At the termination of the experiment (week 15 after the ENU-treatment), all surviving mice were killed and the development of uterine proliferative lesions were assessed. All groups demonstrated endometrial hyperplasias and adenocarcinomas and the incidences of the latter in ENU plus E2 treated animals (Groups 2 to 5; 36, 48, 35 and 36%, respectively) were significantly higher compared to 8% for Group 1, without any variation with the age at E2 treatment. However, the incidences of adenocarcinomas plus severe hyperplasias increased from Groups 1 to 5 (28, 40, 56; P<0.05, 61; P<0.05 and 80%; P<0.01, respectively), indicating that promotion effects of E2 on induction of uterine proliferative lesions in the uterine endometrium become more pronounced with the interval after ENU initiation.
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Affiliation(s)
- M Takahashi
- Department of Pathology, Sasaki Institute, 2-2 Kanda-Surugadai, Chiyoda-ku, 101-0062, Tokyo, Japan
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Yoshida M, Katsuda S, Takenaka A, Watanabe G, Taya K, Maekawa A. Effects of neonatal exposure to a high-dose p-tert-octylphenol on the male reproductive tract in rats. Toxicol Lett 2001; 121:21-33. [PMID: 11312034 DOI: 10.1016/s0378-4274(01)00311-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Time-course alterations in morphological changes of the reproductive tract including spermatogenesis as well as pituitary and gonadal hormones, reproductive ability, and the size of the sexually dimorphic nucleus of the preoptic area (SDN-POA) were investigated in male rats neonatally exposed to 100 mg/kg p-tert-octylphenol (OP) subcutaneously. OP treatment affected hormone levels of follicle stimulating hormone (FSH) and testosterone, reproductive organ weights and sperm counts. Slightly depressed FSH levels at prepuberty and prolonged suppression of testosterone till 7 weeks of age were observed as two hormonal alterations. The lasting reduction in testosterone appeared to be associated with growth inhibition of male reproductive organs such as the testis, prostate and epididymis, these demonstrating low organ weights compared with those of age-matched controls till 7 weeks of age. The FSH concentrations after puberty showed a rise to values equal to or higher than those of the control group, suggesting recovery of maturation of the reproductive tract. No morphological abnormalities, even with morphometric stage analysis of spermatogenesis, were detected in the male reproductive tract throughout the study. Size of the SDN-POA and reproductive ability was comparable to those in controls. At the termination (18 weeks of age), however, a reduction in the sperm count in the epididymis of OP-treated animals demonstrated a possibility that the male reproductive system might be still affected by neonatal exposure to OP. The results observed demonstrate that neonatal exposure to a high-dose OP exerts estrogenic action directly or indirectly, resulting in slight but prolonged impairment of the male reproductive tract. The suppression of FSH caused by modulation of the hypothalamus-pituitary control system may be the trigger for the impairment, while the possibility of direct estrogenic action of OP is not ruled out. Our results also indicate that more sensitive endpoints should be established to detect the effects of neonatal exposure to estrogens or estrogenic compounds on the male reproductive tract.
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Affiliation(s)
- M Yoshida
- Department of Pathology, Sasaki Institute, 2-2 Kanda-Surugadai, Chiyoda-ku, 101-0062, Tokyo, Japan.
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Maekawa A, Kanaoka Y, Lam BK, Austen KF. Identification in mice of two isoforms of the cysteinyl leukotriene 1 receptor that result from alternative splicing. Proc Natl Acad Sci U S A 2001; 98:2256-61. [PMID: 11226226 PMCID: PMC30125 DOI: 10.1073/pnas.041624398] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two classes of human G protein-coupled receptors, cysteinyl leukotriene 1 (CysLT(1)) and CysLT(2) receptors, recently have been characterized and cloned. Because the CysLT(1) receptor blockers are effective in treating human bronchial asthma and the mouse is often used to model human diseases, we isolated the mouse CysLT(1) receptor from a mouse lung cDNA library and found two isoforms. A short isoform cDNA containing two exons encodes a polypeptide of 339 aa with 87.3% amino acid identity to the human CysLT(1) receptor. A long isoform has two additional exons and an in-frame upstream start codon resulting in a 13-aa extension at the N terminus. Northern blot analysis revealed that the mouse CysLT(1) receptor mRNA is expressed in lung and skin; and reverse transcription-PCR showed wide expression of the long isoform with the strongest presence in lung and skin. The gene for the mouse CysLT(1) receptor was mapped to band XD. Leukotriene (LT) D(4) induced intracellular calcium mobilization in Chinese hamster ovary cells stably expressing either isoform of the mouse CysLT(1) receptor cDNA. This agonist effect of LTD(4) was fully inhibited by the CysLT(1) receptor antagonist, MK-571. Microsomal membranes from each transformant showed a single class of binding sites for [(3)H]LTD(4); and the binding was blocked by unlabeled LTs, with the rank order of affinities being LTD(4) >> LTE(4) = LTC(4) >> LTB(4). Thus, the dominant mouse isoform with the N-terminal amino acid extension encoded by an additional exon has the same ligand response profile as the spliced form and the human receptor.
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Affiliation(s)
- A Maekawa
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
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Barata K, Yoshida M, Hokao R, Imai S, Takahashi S, Harada E, Maekawa A. Differential toxicity expression of gentamicine in five-sixths nephrectomized rats assigned to three progressive stages of renal dysfunction--establishment of a new screening approach. Hum Exp Toxicol 2001; 20:100-10. [PMID: 11327510 DOI: 10.1191/096032701666840048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Progressive renal dysfunction in 5/6 nephrectomized (NX) rats can be physiologically divided into three stages, coinciding with morphological stages, after definition of physiological parameters for identification of stage. Now, for the establishment of a toxicity screening approach using 5/6 NX rats, our concept, "Differential toxicity synchronized with renal dysfunction process could be identified using 5/6 NX rats" was examined by dosing gentamicin. Firstly, electrophoretic fractional changes of urinary proteins during gentamicin treatment were clarified with determination of amino acid sequences and the three differential features were proven, revealing the unpredictable depression of urinary albumin with progression of the stages in NX rats. Secondly, marked elevation of urinary lactate dehydrogenase (LDH) and glucose (GLU) was evident, indicating the intensified hypoxic conditions and glycolysis in tubular cells synchronized with increased tubular damage. Thirdly, these transit metabolic changes were proven as intensive cause for the advancement of renal dysfunction by the reduction of FRelectrolytes and water at the end of each dosing period. These results indicate that toxicity studies of newly developed drugs using 5/6 NX rats have potentiality prior to clinical dosing to the patients.
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Affiliation(s)
- K Barata
- United Graduate School of Veterinary Science, Yamaguchi University, Japan
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Funada U, Wada M, Kawata T, Mori K, Tamai H, Isshiki T, Onoda J, Tanaka N, Tadokoro T, Maekawa A. Vitamin B-12-deficiency affects immunoglobulin production and cytokine levels in mice. INT J VITAM NUTR RES 2001; 71:60-5. [PMID: 11276924 DOI: 10.1024/0300-9831.71.1.60] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To clarify the role of B-12 in the immunological function, serum C3, IgM, IgG, IgE contents, splenocytes expression of CD4, CD8, and CD4 positive intracellular IFN-gamma and IL-4 were examined in B-12-deficient mice, and the effect of the administration of CH3-B-12 was also studied. Serum C3, IgM and IgG contents were lower in B-12-deficient mice than in the control mice. On the other hand, serum IgE content was significantly higher in B-12-deficient mice, and the value in CH3-B-12 administered mice, administered CH3-B-12 to B-12-deficient mice for 48 h before the end of feeding period, showed a tendency to recovery. CD4+CD8- cells and CD4+CD8-/CD4-CD8+ ratio in splenocytes were significantly higher in B-12-deficient mice than in control mice. CD4+IFN-gamma+ cells was significantly lower in B-12-deficient mice than in control mice, and CD4+IL-4+ was significantly higher in B-12-deficient mice than in control mice. These results suggest that B-12-deficiency causes CD4+CD8-T cells shift from the T helper type 1 to the T helper type 2, which participate in the IgE production and elevates CD4+CD8-/CD4-CD8+ ratio. Thus, B-12 plays a role in maintaining the immune function in mice.
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Affiliation(s)
- U Funada
- Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya-ku, Tokyo 156-8502, Japan
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