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Ogawa H, Konishi T, Najima Y, Kito S, Hashimoto S, Kato C, Sakai S, Kanbara Y, Atsuta Y, Konuma R, Wada A, Murakami D, Nakasima S, Uchibori Y, Onai D, Hamamura A, Nishijima A, Shingai N, Toya T, Shimizu H, Kobayashi T, Ohashi K, Doki N, Murofushi KN. Phase I trial of myeloablative conditioning with 3-day total marrow and lymphoid irradiation for leukemia. Cancer Sci 2022; 114:596-605. [PMID: 36221800 PMCID: PMC9899623 DOI: 10.1111/cas.15611] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/10/2022] [Accepted: 09/20/2022] [Indexed: 02/07/2023] Open
Abstract
This prospective phase I trial aimed to determine the recommended dose of 3-day total marrow and lymphoid irradiation (TMLI) for a myeloablative conditioning regimen by increasing the dose per fraction. The primary end-point of this single-institution dose escalation study was the recommended TMLI dose based on the frequency of dose-limiting toxicity (DLT) ≤100 days posthematopoietic stem cell transplantation (HSCT); a 3 + 3 design was used to evaluate the safety of TMLI. Three dose levels of TMLI (14/16/18 Gy in six fractions over 3 days) were set. The treatment protocol began at 14 Gy. Dose-limiting toxicities were defined as grade 3 or 4 nonhematological toxicities. Nine patients, with a median age of 42 years (range, 35-48), eight with acute lymphoblastic leukemia and one with chronic myeloblastic leukemia, received TMLI followed by unrelated bone marrow transplant. The median follow-up period after HSCT was 575 days (range, 253-1037). Three patients were enrolled for each dose level. No patient showed DLT within 100 days of HSCT. The recommended dose of 3-day TMLI was 18 Gy in six fractions. All patients achieved neutrophil engraftment at a median of 19 days (range, 14-25). One-year overall and disease-free survival rates were 83.3% and 57.1%, respectively. Three patients experienced relapse, and no nonrelapse mortality was documented during the observation period. One patient died due to disease relapse 306 days post-HSCT. The recommended dose of 3-day TMLI was 18 Gy in six fractions. The efficacy evaluation of this regimen is currently being planned in a phase II study.
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Affiliation(s)
- Hiroaki Ogawa
- Division of Radiation Oncology, Department of RadiologyTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Tatsuya Konishi
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Yuho Najima
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Satoshi Kito
- Division of Radiation Oncology, Department of RadiologyTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Shimpei Hashimoto
- Division of Radiation Oncology, Department of RadiologyTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Chika Kato
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Satoshi Sakai
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Yasuhiro Kanbara
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Yuya Atsuta
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Ryosuke Konuma
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Atsushi Wada
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Daisuke Murakami
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Shiori Nakasima
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Yusuke Uchibori
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Daishi Onai
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Atsushi Hamamura
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Akihiko Nishijima
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Naoki Shingai
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Takashi Toya
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Hiroaki Shimizu
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Takeshi Kobayashi
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Kazuteru Ohashi
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Noriko Doki
- Hematology DivisionTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
| | - Keiko Nemoto Murofushi
- Division of Radiation Oncology, Department of RadiologyTokyo Metropolitan Cancer and Infectious Diseases Center, Komagome HospitalTokyoJapan
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Yagi Y, Kanemasa Y, Sasaki Y, Hayashi Y, Mino M, Kato C, Sakai S, Ohigashi A, Kanbara Y, Morita Y, Tamura T, Atsuta Y, Konuma R, Nakamura S, Wada A, Okuya T, Kageyama A, Murakami D, Nakashima S, Uchibori Y, Onai D, Hamamura A, Nishijima A, Omuro Y, Shingai N, Shimizuguchi T, Toya T, Shimizu H, Najima Y, Kobayashi T, Haraguchi K, Ohashi K, Doki N, Okuyama Y, Shimoyama T. [Tisagenlecleucel for relapsed/refractory diffuse large B-cell lymphoma: real-world data from single institute experience]. Rinsho Ketsueki 2022; 63:1363-1372. [PMID: 36351641 DOI: 10.11406/rinketsu.63.1363] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell therapy has revolutionized the approach to patients with relapsed or refractory diffuse large B-cell lymphoma (r/r DLBCL). This study retrospectively analyzed patients treated with commercially available tisagenlecleucel at our hospital and evaluated its safety and effectiveness. Of the 21 patients evaluated, any grade and grade ≥3 cytokine release syndrome (CRS) occurred in 85.7% and 9.5% of the patients, respectively. A total of 66.7% received tocilizumab and 28.6% received glucocorticoids for the treatment of CRS. The complete response (CR) rate at 3 months was 61.9% (95% confidence interval [CI] 38.4-81.9). After a median follow-up of 6.3 months following CAR-T infusion, the progression-free survival (PFS) and overall survival rates at 6 months were 53.1% (95%CI 28.3-72.7) and 69.2% (95%CI 43.7-84.9), respectively. Severe cytopenia and hypogammaglobulinemia occurred frequently following CAR-T infusion. Eight patients (38.1%) had comorbidities that would have made them ineligible for leukapheresis in the JULIET trial. However, the presence of comorbidities at the time of leukapheresis had no significant effect on the rates of CR, PFS, and adverse events. Tisagenlecleucel for r/r DLBCL in the real-world setting showed high efficacy and manageable safety profile comparable with the pivotal trial.
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Affiliation(s)
- Yu Yagi
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yusuke Kanemasa
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuki Sasaki
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yudai Hayashi
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Mano Mino
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Chika Kato
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Satoshi Sakai
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - An Ohigashi
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yasuhiro Kanbara
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuka Morita
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Taichi Tamura
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuya Atsuta
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Ryosuke Konuma
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Shohei Nakamura
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Atsushi Wada
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Toshihiro Okuya
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Akihiko Kageyama
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Daisuke Murakami
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Shiori Nakashima
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yusuke Uchibori
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Daishi Onai
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Atsushi Hamamura
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Akihiko Nishijima
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yasushi Omuro
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Naoki Shingai
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Takuya Shimizuguchi
- Department of Radiation Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Takashi Toya
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Hiroaki Shimizu
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuho Najima
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Takeshi Kobayashi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Kyoko Haraguchi
- Division of Transfusion and Cell Therapy, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Kazuteru Ohashi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Noriko Doki
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yoshiki Okuyama
- Division of Transfusion and Cell Therapy, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Tatsu Shimoyama
- Department of Medical Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
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Tanabe K, Najima Y, Inokuchi T, Endo M, Nishio Y, Sadato D, Kanbara Y, Atsuta Y, Konuma R, Adachi H, Wada A, Kishida Y, Uchibori Y, Noguchi Y, Mukae J, Shingai N, Toya T, Shimizu N, Kobayashi T, Harada H, Sakamaki H, Ohashi K, Harada Y, Yamaguchi T, Akizuki N, Doki N. [Klinefelter's syndrome diagnosed at the onset of acute myeloid leukemia with inv (16) following treatment for germ cell tumor]. Rinsho Ketsueki 2022; 63:746-752. [PMID: 35922942 DOI: 10.11406/rinketsu.63.746] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A 22-year-old man with a history of mediastinal germ cell tumor, which was diagnosed at age 20 and remained disease-free after chemotherapy, was diagnosed with acute myeloid leukemia (AML) M2 in January 2020. Karyotype analysis of bone marrow (BM) specimen at diagnosis detected 47,XXY, inv (16) in all cells. Following induction treatment, he achieved complete remission with a remarkable decrease in the minimal residual disease marker. Although considered related to therapy, the AML had a prognostically favorable karyotype, and the initial treatment response was very good. He had no human leukocyte antigen-matched sibling donor candidate. Thus, allogeneic hematopoietic stem cell transplantation was not scheduled at the first complete remission. After three cycles of consolidation therapy, he remained disease-free for over one year. Karyotype analysis of BM during remission revealed that all analyzed cells harbored 47,XXY, and Klinefelter syndrome (KS) was diagnosed. Although the patient experienced an adjustment disorder on KS diagnosis, he had overcome the difficulty with the assistance of psycho-oncologists, clinical psychologists, and genetic counselors. Herein, we report this rare case of KS that manifested after AML diagnosis following mediastinal germ cell tumor treatment.
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Affiliation(s)
- Kisa Tanabe
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuho Najima
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Takuhiko Inokuchi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Mae Endo
- Department of Psycho-oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuko Nishio
- Department of Psycho-oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Daichi Sadato
- Clinical Research Support Center, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yasuhiro Kanbara
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuya Atsuta
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Ryosuke Konuma
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Hiroto Adachi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Atsushi Wada
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuya Kishida
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yusuke Uchibori
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuma Noguchi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Junichi Mukae
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Naoki Shingai
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Takashi Toya
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Noriaki Shimizu
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Takeshi Kobayashi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Hironori Harada
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
- Laboratory of Oncology, Tokyo University of Pharmacy and Life Sciences
| | - Hisashi Sakamaki
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Kazuteru Ohashi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Yuka Harada
- Clinical Research Support Center, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Tatsuro Yamaguchi
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Nobuya Akizuki
- Department of Psycho-oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
| | - Noriko Doki
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
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4
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Harada T, Kanbara Y, Takeuchi T, Niwa T, Majima T. Exploration of Vogt-Koyanagi-Harada Syndrome by Infrared Choroidal Angiography with Indocyanine Green. Eur J Ophthalmol 2018; 7:163-70. [PMID: 9243221 DOI: 10.1177/112067219700700208] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 11/17/2022]
Abstract
The choroid affected by the Vogt-Koyanagi-Harada syndrome (VKH) has seldom been explored by indocyanine green choroidal angiography. Five patients with definite diagnosis of VKH underwent this investigation. The first case had the most marked leakage, very similar to that on fluorescein angiography. The right eye of case 2 showed fewer leakage points on ICG than on fluorescein angiography, compared with case 1. The left eye of case 2 did not show any leakage. Cases 3, 4 and 5 yielded segmental hyperfluorescence, distant from the posterior pole, which could not be identified by fluorescein angiography. This might indicate segmental choroiditis. There were two types of hypofluorescent lesions; all the cases except case 2 showed early hypofluorescence. Hypofluorescent areas corresponding to overlying retinal detachment were seen in the right eye of case 4. Multiple spots, late hypofluorescence, about 200 to 500 um in size appeared throughout the posterior pole in four eyes out of ten. In conclusion, indocyanine green choroidal angiography provides a wider variety of pictures than fluorescein angiography.
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Affiliation(s)
- T Harada
- Department of Ophthalmology, Fujita Health University, Aichi, Japan
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Takeuchi C, Kanbara Y, Minatogawa M, Shibata N, Mochizuki Y. Dementia and acute intellectual regression in down syndrome. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2882] [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: 11/25/2022]
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Sanada F, Kanbara Y, Taniyama Y, Otsu R, Carracedo M, Ikeda-Iwabu Y, Muratsu J, Sugimoto K, Yamamoto K, Rakugi H, Morishita R. Induction of Angiogenesis by a Type III Phosphodiesterase Inhibitor, Cilostazol, Through Activation of Peroxisome Proliferator-Activated Receptor-γ and cAMP Pathways in Vascular Cells. Arterioscler Thromb Vasc Biol 2016; 36:545-52. [PMID: 26769045 DOI: 10.1161/atvbaha.115.307011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 12/28/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Peripheral arterial disease is highly prevalent in the elderly and in the subjects with cardiovascular risk factors such as diabetes. Approximately 2% to 4% of those affected with peripheral arterial disease commonly complain of intermittent claudication. Cilostazol, a type III phosphodiesterase inhibitor, is the only Food and Drug Administration-approved drug for the treatment of intermittent claudication. Cilostazol has been shown to be beneficial for the improvement of pain-free walking distance in patients with intermittent claudication in a series of randomized clinical trials. However, the underlying mechanism how cilostazol improved intermittent claudication symptoms is still unclear. APPROACH AND RESULTS In this study, the effect of cilostazol on ischemic leg was investigated in mouse ischemic hindlimb model. Administration of cilostazol significantly increased the expression of hepatocyte growth factor (HGF), vascular endothelial growth factor, angiopoietin-1, and peroxisome proliferator-activated receptor-γ in vasculature. The capillary density in ischemic leg was also significantly increased in cilostazol treatment group when compared with control and aspirin treatment group. However, an increase in capillary density and the expression of growth factors was almost completely abolished by coadministration of HGF-neutralizing antibody, suggesting that cilostazol enhanced angiogenesis mainly through HGF. In vitro experiment revealed that cilostazol treatment increased HGF production in vascular smooth muscle cells via 2 major pathways: peroxisome proliferator-activated receptor-γ and cAMP pathways. CONCLUSIONS Our data suggest that the favorable effects of cilostazol on ischemic leg might be through the angiogenesis through the induction of HGF via peroxisome proliferator-activated receptor-γ and cAMP pathways.
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Affiliation(s)
- Fumihiro Sanada
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yasuhiro Kanbara
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshiaki Taniyama
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - Rei Otsu
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Miguel Carracedo
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yuka Ikeda-Iwabu
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Jun Muratsu
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Ken Sugimoto
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Koichi Yamamoto
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiromi Rakugi
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Ryuichi Morishita
- From the Departments of Clinical Gene Therapy (F.S., Y.K., Y.T., R.O., M.C., Y.I.-I., J.M., R.M.) and Geriatric and General Medicine (Y.T., J.M., K.S., K.Y., H.R.), Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
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Abstract
INTRODUCTION Despite the remarkable progress of medicine and endovascular procedures for revascularization, patients with critical limb ischemia (CLI) remain at high risk for amputation and often have a low quality of life due to pain and ulcers in the ischemic leg. Thus, a novel strategy for generating new blood vessels in CLI patients without treatment options is vital. Pre-clinical studies and Phase I clinical trials using VEGF and fibroblast growth factor (FGF) demonstrated promising results; however, more rigorous Phase II and III clinical trials failed to demonstrate benefits for CLI patients. Recently, two multicenter, double-blind, placebo-controlled clinical trials in Japan (Phase III) and the USA (Phase II) showed the benefits of hepatocyte growth factor (HGF) gene therapy for CLI patients. Although the number of patients included in these trials was relatively small, these results imply a distinct beneficial function for HGF over other angiogenic growth factors in a clinical setting. AREAS COVERED In this review, data from Phase I-III clinical trials of gene therapy for patients with peripheral artery disease (PAD) are examined. In addition, the potential mechanisms behind the success or failure of clinical trials are discussed. EXPERT OPINION Compared with VEGF and FGF, HGF has a unique molecular effect on inflammation, fibrosis and cell senescence under pathological conditions. These features may explain the clinical benefits of HGF in PAD patients.
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Affiliation(s)
- Fumihiro Sanada
- Osaka University Graduate School of Medicine, Department of Clinical Gene Therapy , Suita, Osaka 565-0871 , Japan
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Sanada F, Taniyama Y, Azuma J, Yuka II, Kanbara Y, Iwabayashi M, Rakugi H, Morishita R. Therapeutic Angiogenesis by Gene Therapy for Critical Limb Ischemia: Choice of Biological Agent. Immunol Endocr Metab Agents Med Chem 2014; 14:32-39. [PMID: 26005508 PMCID: PMC4435566 DOI: 10.2174/1871522213999131231105139] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/27/2013] [Accepted: 11/27/2013] [Indexed: 11/22/2022]
Abstract
Peripheral artery disease (PAD) is caused by atherosclerosis, hardening and narrowing arteries over time due to buildup of fatty deposit in vascular bed called plaque. Severe blockage of an artery of the lower extremity markedly reduce blood flow, resulting in critical limb ischemia (CLI) manifested by a variety of clinical syndromes including rest pain in the feet or toes, ulcer and gangrene with infection. Despite significant advances in clinical care and interventions for revascularization, patients with CLI remain at high risk for amputation and cardiovascular death. To overcome this unmet need, therapeutic angiogenesis using angiogenic growth factors has evolved in an attempt to increase blood flow in ischemic limb. Initial animal studies and phase I clinical trials with vascular endothelial growth factor (VEGF) or fibroblast growth factor (FGF) demonstrated promising results, inspiring scientists to progress forward. However, more rigorous phase II and III clinical trials have failed to demonstrate beneficial effects of these angiogenic growth factors to date. Recently, two multicenter, double-blind, placebo-controlled clinical trials in Japan (phase III) and US (phase II) demonstrated that hepatocyte growth factor (HGF) gene therapy for CLI significant improved primary end points and tissue oxygenation up to two years in comparison to placebo. These clinical results implicate a distinct action of HGF on cellular processes involved in vascular remodeling under pathological condition. This review presents data from phase I-III clinical trials of therapeutic angiogenesis by gene therapy in patients with PAD. Further, we discuss the potential explanation for the success or failure of clinical trials in the context of the biological mechanisms underlying angiogenesis and vascular remodeling, including cellular senescence, inflammation, and tissue fibrosis.
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Affiliation(s)
| | - Yoshiaki Taniyama
- Department of Clinical Gene Therapy
- Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Junya Azuma
- Department of Clinical Gene Therapy
- Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | | | | | | | - Hiromi Rakugi
- Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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Kanbara Y, Murakane K, Nishimura Y, Satoh M, Oyama Y. Nanomolar concentration of triclocarban increases the vulnerability of rat thymocytes to oxidative stress. J Toxicol Sci 2013; 38:49-55. [PMID: 23358139 DOI: 10.2131/jts.38.49] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
It was recently reported that triclocarban was absorbed significantly from soap used during showering in human subjects and that its C(max) in their whole blood ranged from 23 nM to 530 nM. We revealed that a nanomolar concentration (300 nM) of triclocarban potentiated the cytotoxicity of 300 µM H(2)O(2) in rat thymocytes by using cytometric techniques with appropriate fluorescent probes. Although 300 nM triclocarban did not itself increase the population of dead cells (cell lethality), it facilitated the process of cell death induced by H(2)O(2), resulting in a further increase in the population of dead cells. Nanomolar concentrations (300 nM or higher) of triclocarban significantly decreased the cellular content of nonprotein thiol (glutathione), which has a protective role against oxidative stress. Triclocarban at 300 nM or higher increased the cell vulnerability to oxidative stress. The results may suggest that nanomolar concentration (300 nM or higher) of triclocarban affects some cellular functions although there is no evidence for adverse effects of triclocarban in humans at present.
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Affiliation(s)
- Yasuhiro Kanbara
- Division of Environmental Symbiosis Studies, Graduate School of Integrated Arts and Sciences, University of Tokushima, Tokushima, Japan
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10
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Tamura I, Kanbara Y, Saito M, Horimoto K, Satoh M, Yamamoto H, Oyama Y. Triclosan, an antibacterial agent, increases intracellular Zn(2+) concentration in rat thymocytes: its relation to oxidative stress. Chemosphere 2012; 86:70-75. [PMID: 22000841 DOI: 10.1016/j.chemosphere.2011.09.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 08/31/2011] [Accepted: 09/02/2011] [Indexed: 05/31/2023]
Abstract
Triclosan is used as an antibacterial agent in household items and personal care products. Since this compound is found in maternal milk of humans and bodies of wild animals, there is growing concern among some consumer groups and scientific community that triclosan is adverse for humans and wild animals. In order to estimate adverse actions of triclosan, the effects of triclosan on intracellular Zn(2+) concentration and cellular thiol content were studied in rat thymocytes by the use of flow cytometer with appropriate fluorescent probes. Triclosan at 1-3 μM (sublethal concentrations) increased the intensity of FluoZin-3 fluorescence (intracellular Zn(2+) concentration) and decreased the intensity of 5-chloromethylfluorescein (5-CMF) fluorescence (cellular thiol content). Negative correlation (r=-0.985) between triclosan-induced changes in FluoZin-3 and 5-CMF fluorescences was found. Removal of external Zn(2+) did not significantly affect the triclosan-induced augmentation of FluoZin-3 fluorescence, suggesting an intracellular Zn(2+) release by triclosan. These actions of triclosan were similar to those of H(2)O(2) and triclosan significantly potentiated the cytotoxicity of H(2)O(2). Therefore, the results may suggest that triclosan at sublethal concentrations induces oxidative stress that decreases cellular thiol content, resulting in an increase in intracellular Zn(2+) concentration by Zn(2+) release from intracellular store(s). Since recent studies show many physiological roles of intracellular Zn(2+) in cellular functions, the triclosan-induced disturbance of cellular Zn(2+) homeostasis may induce adverse actions on the cells.
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Affiliation(s)
- Ikumi Tamura
- Division of Environmental Symbiosis Studies, Graduate School of Integrated Arts and Sciences, The University of Tokushima, Tokushima 770-8502, Japan
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11
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Koizumi K, Kawanai T, Hashimoto E, Kanbara Y, Masuda T, Kanemaru K, Okano Y, Oyama Y. Cytometric analysis on cytotoxicity of curcumin on rat thymocytes: Proapoptotic and antiapoptotic actions of curcumin. Toxicol In Vitro 2011; 25:985-90. [DOI: 10.1016/j.tiv.2011.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 02/28/2011] [Accepted: 03/14/2011] [Indexed: 02/04/2023]
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12
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Inoue T, Ogasawara K, Kobayashi M, Nishimoto H, Hirooka R, Kanbara Y, Matsumura Y, Ogawa A. Assessment of cerebral metabolism using magnetic resonance spectroscopy in patients undergoing carotid endarterectomy. ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-972134] [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: 10/21/2022]
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13
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Sakamoto N, Monzawa S, Miyake M, Watanabe H, Hamanaka A, Motohara T, Adachi S, Kanbara Y, Kawaguchi K, Etoh H, Hanioka K. Portal venous tumor thrombus associated with hepatic metastasis of renal cell carcinoma: case report. ACTA ACUST UNITED AC 2005; 31:245-8. [PMID: 16283584 DOI: 10.1007/s00261-005-0374-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2004] [Accepted: 04/20/2005] [Indexed: 11/28/2022]
Abstract
We report a case of liver metastasis of renal cell carcinoma with portal venous tumor thrombus. Abdominal computed tomographic images showed a large hepatic mass that enhanced slightly during arterial phase. Multiple hypoattenuating lesions were seen in the intrahepatic portal venous branches and were traced directly from the mass. The histologic specimen confirmed metastatic liver tumor of renal cell carcinoma with portal venous tumor thrombus.
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Affiliation(s)
- N Sakamoto
- Department of Radiology, Hyogo Medical Center for Adults, 13-70 Kitaoji, Akashi City, Hyogo 673-8558, Japan.
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14
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Hirai A, Kohno N, Nishihara T, Kaneda K, Nakae S, Kawamura T, Kanbara Y, Nakaya S, Ishikawa Y, Sashikata T. A case of intraductal papilloma of breast in advanced age. Kobe J Med Sci 1998; 44:127-33. [PMID: 10209933] [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: 02/12/2023]
Abstract
Breast tumors have their various biological characteristics as to advanced age of patients. Intraductal papilloma is a benign tumor of the breast which is known to occur in the premenopausal young females. Tumors of the breast in the senile females are found mainly to be breast cancers. No any cases of intraductal papilloma over 80-years were reported in Japan to date. We have recognized mammary tumors in old aged patients to be cancers, but it is necessary to put it into mind there are a few intraductal papillomas even if advanced in age. In this report, we present the most senile case with intraductal papilloma in our institute.
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Affiliation(s)
- A Hirai
- Department of Surgery, Hyogo Medical Center for Adults, Japan
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15
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Abstract
Using light and transmission electron microscopy, we have performed a histopathological evaluation of the anterior lens capsule, isolated during cataract extraction from an eye revealing a cellophane-like membrane on the lens surface of the pupil area. In addition to light microscopy showing one third of the anterior capsule had partially detached, transmission electron microscopy demonstrated irregular alignment of capsular structure near the detached regions. These microscopic features, together with clinical findings, led us to believe that this is a case of true exfoliation.
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Affiliation(s)
- K Majima
- Department of Ophthalmology, Fujita Health University School of Medicine, Aichi, Japan
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16
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Sugimoto T, Kanbara Y, Shiraishi H, Kawakatsu M, Negishi H, Fukase M, Fujita T, Chihara K, Tsutsumi M. Femoral and spinal bone mineral density in Japanese osteoporotics with hip fracture. Osteoporos Int 1994; 4:144-8. [PMID: 8069053 DOI: 10.1007/bf01623059] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In the present study, bone mineral density (BMD) of femoral neck and lumbar spine was compared between 38 Japanese female patients with hip fracture (age 63-89 years, mean +/- SD 76 +/- 7 years) and 162 age-matched female controls (age 62-90 years, mean +/- SD 75 +/- 7 years). BMD was measured in the femoral neck and lumbar spine (L2-4) using dual-photon absorptiometry (Norland model 2600). BMD values of femoral neck as well as lumbar spine were significantly lower in patients with hip fracture than in controls (0.504 +/- 0.097 v 0.597 +/- 0.101, p < 0.01, for femoral neck; 0.661 +/- 0.146 v 0.720 +/- 0.128, p < 0.05, for lumbar spine). Patients with hip fracture and controls were stratified according to their BMD levels at two measuring sites, and the ratio of the number of patients and controls at each BMD level was calculated as an indicator of fracture rate. This ratio showed an exponential increase as the femoral neck BMD declined, but only a gradual increase as the lumbar spine BMD declined. Specificity-sensitivity analysis revealed that BMD values of 0.59 and 0.54 g/cm2 at the femoral neck provided a specificity of 52% and 68% with a sensitivity of 90% and 75%, respectively. These findings suggest that Japanese patients with hip fracture are more osteoporotic than age-matched controls and that the selective measurement of femoral neck would be useful for predicting the risk of hip fracture.
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Affiliation(s)
- T Sugimoto
- Department of Medicine, Takatsuki General Hospital, Osaka, Japan
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17
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Kohno N, Kitazawa S, Fukase M, Sakoda Y, Kanbara Y, Furuya Y, Ohashi O, Ishikawa Y, Saitoh Y. The expression of parathyroid hormone-related protein in human breast cancer with skeletal metastases. Surg Today 1994; 24:215-20. [PMID: 8003863 DOI: 10.1007/bf02032890] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.5] [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: 01/28/2023]
Abstract
The relationship between the expression of parathyroid hormone-related protein (PTHrP) by breast cancer and skeletal metastases, was investigated using a monoclonal antibody against human PTHrP (4B3). The immunohistochemical localization of PTHrP was studied in sections of formalin-fixed, paraffin-embedded tissues from 28 breast cancers obtained surgically between 1980 and 1985. Of the 28 patients, 12 developed skeletal metastases, 8 developed lung metastases, and the other 8 were alive and disease-free at the time of this study. Sixteen of the 28 (57%) tumors showed positive immunoreactivity to 4B3, the PTHrP positive ratio being 83% in the patients who developed skeletal metastases, 38% in those who developed lung metastases, and 38% in those without recurrence, respectively. Thus, a significantly higher proportion of the patients who developed skeletal metastases were positive for PTHrP than the other two groups (P < 0.05). Furthermore, the level of positive staining was strongly related to positivity for estrogen and progesterone receptors (P < 0.01). These results are consistent with the hypothesis that PTHrP might be necessary for metastases to erode bone and grow in skeletal sites, and its expression could be related to certain hormones.
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Affiliation(s)
- N Kohno
- Department of Surgery, Hyogo Medical Center for Adults, Akashi, Japan
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18
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Kanbara Y, Kono N, Nakaya M, Ishikawa Y, Fujiwara O, Kitazawa R, Kitazawa S. [Immunohistological evaluation of parathyroid hormone-related protein in breast cancer with and without calcification on mammography]. Nihon Geka Gakkai Zasshi 1993; 94:394-9. [PMID: 8321185] [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: 01/29/2023]
Abstract
PTHrP is the main factor of humoral hypercalcemia of malignancy. PTHrP produces the same effect on renal and osteoblast membrane in vitro and on calcium and inorganic phosphate fluxes in vivo as human PTH. Physiologically, PTHrP is produced by rat mammary tissue during lactation. It is suggested that PTHrP correlates to the metabolism of calcium in the mammary gland. Using anti-PHTrP (1-34) monoclonal antibody 4B3, we investigated the correlation of PTHrP and calcification in breast cancer. All the breast cancers with calcification on mammography showed positive immunostaining. Most cases without calcification, on the other hand, showed negative. Positive PTHrP staining was not related to the any clinical parameter. It is suspected that PTHrP is also one of the main factors of calcification in breast cancer.
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Affiliation(s)
- Y Kanbara
- Department of Surgery, Hyogo Medical Center for Adult, Akashi, Japan
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19
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Murayama T, Imoto S, Ito M, Matsushita K, Matozaki S, Nakagawa T, Kanbara Y, Kono N, Sashikata T. Mesenteric fibromatosis presenting as fever of unknown origin. Am J Gastroenterol 1992; 87:1503-5. [PMID: 1415113] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report a case of fibromatosis, soft tissue tumors that are benign histologically, but exhibit behavior intermediate between benign and malignant diseases. Mesenteric fibromatosis grows vigorously without a general inflammatory reaction, and its symptoms are the result of obstruction and/or compression of the intestine. However, in our case, the general inflammatory reactions of fever and C-reactive protein (CRP) elevation was present at an early stage. Because this inflammatory reaction disappeared after surgical resection, it may have been induced by some inflammatory factors produced in the tumor, such as those produced in inflammatory fibrous histiocytoma. We found that computed tomography was useful in the detection of the cause of fever of unknown origin, and suggest that it should be recommended in cases of long-lasting unexplainable fever.
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Affiliation(s)
- T Murayama
- Department of Internal Medicine, Hyogo Medical Center for Adults, Japan
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20
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Kanbara Y, Mizuno K, Hirohata K, Shiraishi H. A comparison of the bone mineral density of the vertebral bodies and the hip in elderly females with hip fractures. Assessment using dual photon absorptiometry. Kobe J Med Sci 1992; 38:21-36. [PMID: 1495269] [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: 12/27/2022]
Abstract
The influence of decreasing bone mineral density with age and the occurrence of hip fractures in elderly females was investigated. Normal hips were studied in 287 healthy women whose ages ranged from 20 to 90 years old. The normal hip in 61 patients who had all suffered a femoral neck or intertrochanteric hip fracture, and were over 60 years old, were also studied and compared. The bone mineral density (BMD) of the lumbar vertebrae and the hip was measured with dual beam photon absorptiometry, for all patients. There was no correlation between the bone mineral density of the lumbar vertebral bodies, and the bone mineral density of the proximal femur. The peak bone mass in e lumbar vertebrae was seen in the thirties, but the peak bone mass in the hip was seen in the twenties. Bone mineral density in the lumbar vertebrae and in the hip was decreased in the patients who had sustained a hip fracture when compared to the control patients. The bone mineral density in the proximal femur was significantly reduced in patients who had sustained a hip fracture, especially in the region of Ward's triangle. These findings suggested that decreased bone mass in the hip at Ward's triangle may be correlated with the occurrence of hip fractures.
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Affiliation(s)
- Y Kanbara
- Department of Orthopaedic Surgery, Kobe University School of Medicine, Japan
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21
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Ohyanagi H, Nishimatsu S, Kanbara Y, Usami M, Saitoh Y. Effects of nucleosides and a nucleotide on DNA and RNA syntheses by the salvage and de novo pathway in primary monolayer cultures of hepatocytes and hepatoma cells. JPEN J Parenter Enteral Nutr 1989; 13:51-8. [PMID: 2467017 DOI: 10.1177/014860718901300151] [Citation(s) in RCA: 29] [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: 01/01/2023]
Abstract
Studies were made on the effects of inosine, guanosine 5'-monophosphate (GMP), cytidine, uridine, thymidine, and their mixture (4:4:4:3:1, OG-VI) on DNA and RNA syntheses in primary monolayer cultures of normal hepatocytes and cultures of hepatoma cells, AH130, to use these compounds for total parenteral nutrition. Addition of an appropriate amount of inosine, GMP, uridine, or thymidine to primary cultures of hepatocytes enhanced both DNA and RNA syntheses by the salvage and de novo pathways. Cytidine appeared to have lower optimal concentration for enhancing these pathways. The OG-VI mixture also enhanced the syntheses of DNA and RNA, but the composition of the mixture was not optimal. Additions of inosine, GMP, uridine, and thymidine to cultured hepatoma cells also enhanced their DNA and RNA syntheses, but the cells consumed more of the added nucleic acid compounds than hepatocytes did. Addition of cytidine had no effect on proliferation of the cells. The OG-VI mixture at relatively higher concentration inhibited the syntheses of DNA and RNA by hepatoma cells. Addition of high concentrations of nucleic acid compounds was found to suppress the proliferation of both hepatocytes and hepatoma cells. These results suggest that addition of optimal amounts of nucleic acid compounds such as nucleosides and nucleotides would enhance growth of hepatocytes, particularly during liver regeneration, but that they may also enhance proliferation of tumor cells in the liver.
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Affiliation(s)
- H Ohyanagi
- First Department of Surgery, Kobe University, School of Medicine, Japan
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22
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Kobayashi K, Amano M, Kanbara Y, Hayashi K. One-electron reduction of the oxyform of 2,4-diacetyldeuterocytochrome P-450cam. J Biol Chem 1987; 262:5445-7. [PMID: 3571217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The reaction of the hydrated electron with a ferrous oxygenated form of modified cytochrome P-450cam, containing 2,4-diacetyldeuteroheme, was investigated by the use of pulse radiolysis. The ferrous oxygenated form of this enzyme was reduced by hydrated electrons to form the product, which exhibits absorption maximum at 470 and 370 nm. From the spectrum obtained, the oxidation state of the product is discussed in relation to the higher oxidation states of chloroperoxidase.
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23
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Takebe K, Kanbara Y, Mizuno K, Hirohata K. Tardy ulnar nerve palsy associated with the isolated dislocation of the head of the radius. Clin Orthop Relat Res 1982:260-6. [PMID: 7094470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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