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Onoi K, Yamada T, Morimoto K, Kawachi H, Tsutsumi R, Takeda T, Okada A, Tamiya N, Chihara Y, Shiotsu S, Takemura Y, Yamada T, Hasegawa I, Katayama Y, Iwasaku M, Tokuda S, Takayama K. Efficacy and Safety of Docetaxel plus Ramucirumab for Patients with Pretreated Advanced or Recurrent Non-small Cell Lung Cancer: Focus on Older Patients. Target Oncol 2024:10.1007/s11523-024-01045-0. [PMID: 38467958 DOI: 10.1007/s11523-024-01045-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND Combination therapy with docetaxel (DTX) and ramucirumab (RAM) has been used as a second-line treatment for advanced or recurrent lung cancer. However, there is insufficient evidence regarding the safety of angiogenesis inhibitors in older patients. OBJECTIVE This multicenter retrospective study aimed to investigate the efficacy and safety of second-line treatment regimens in older patients with advanced or recurrent non-small cell lung cancer (NSCLC). PATIENTS AND METHODS We retrospectively analyzed 145 patients aged ≥ 70 years with advanced or recurrent NSCLC treated with second-line chemotherapy after platinum-based therapy between April 1, 2016, and March 31, 2021. Patients were subdivided into the DTX + RAM (n = 38) and single-agent (n = 107) groups. RESULTS The median time to treatment failure was 6.3 months (95% confidence interval [CI] 3.6-9.6) in the DTX + RAM group and 2.3 months (95% CI 1.7-3.0) in the single-agent group (p < 0.01). The median overall survival was 15.9 months (95% CI 12.3-Not Achieved) in the DTX + RAM group and 9.4 months (95% CI 6.9-15.1) in the single-agent group (p = 0.01). Grade ≥ 3 adverse events frequency was not significantly different between the two groups, except for edema. Patients in the DTX + RAM group who did not discontinue treatment owing to adverse events exhibited the most favorable prognosis. CONCLUSIONS These findings suggest that the DTX + RAM combination is an effective second-line therapy for older patients with advanced or recurrent NSCLC, offering favorable efficacy without treatment discontinuation owing to adverse events.
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Affiliation(s)
- Keisuke Onoi
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Kenji Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Hayato Kawachi
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Rei Tsutsumi
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Asuka Okada
- Department of Respiratory Medicine, Saiseikai Suita Hospital, Osaka, Japan
| | - Nobuyo Tamiya
- Department of Pulmonary Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Kyoto, Japan
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | | | - Takahiro Yamada
- Department of Respiratory Medicine, Matsushita Memorial Hospital, Osaka, Japan
| | - Isao Hasegawa
- Department of Respiratory Medicine, Saiseikai Shigaken Hospital, Shiga, Japan
| | - Yuki Katayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Masahiro Iwasaku
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Shinsaku Tokuda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
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Katayama Y, Yamada T, Morimoto K, Fujii H, Morita S, Tanimura K, Takeda T, Okada A, Shiotsu S, Chihara Y, Hiranuma O, Yamada T, Ota T, Harada T, Hasegawa I, Iwasaku M, Tokuda S, Tanaka N, Miyagawa-Hayashino A, Takayama K. Comparing Three Different Anti-Programmed Death-Ligand 1 Antibodies in Immunohistochemical Evaluation of Combined Chemoimmunotherapy Response in Patients With NSCLC: A Prospective Study. JTO Clin Res Rep 2024; 5:100644. [PMID: 38444594 PMCID: PMC10914581 DOI: 10.1016/j.jtocrr.2024.100644] [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: 05/09/2023] [Revised: 10/23/2023] [Accepted: 01/24/2024] [Indexed: 03/07/2024] Open
Abstract
Introduction Multiple programmed death-ligand 1 (PD-L1) immunohistochemistry assays performed using different antibodies including DAKO 22C3, DAKO 28-8, and Ventana SP142 PD-L1-predictive markers for response to various immune checkpoint inhibitors in NSCLC-have been approved in several countries. The differences in multiple PD-L1 immunohistochemistry assay results in predicting the therapeutic response to combined chemoimmunotherapy in patients with NSCLC remain unclear. Methods In this multicenter prospective observational study, we monitored 70 patients with advanced NSCLC treated with combined chemoimmunotherapy at 10 institutions in Japan. The expression of PD-L1 in pretreatment tumors was evaluated using the 22C3, 28-8, and SP142 assays in all patients. Results The PD-L1 level in tumor cells determined using the 22C3 assay was the highest among the three assays performed with different antibodies. According to the 22C3 assay results, the PD-L1 tumor proportion score greater than or equal to 50% group had a significantly longer progression-free survival period than the PD-L1 tumor proportion score less than 50% group. Nevertheless, the other assays did not reveal remarkable differences in the objective response rate or progression-free survival. Conclusions In our study, PD-L1 expression determined using the 22C3 assay was more correlated with the therapeutic response of patients with NSCLC treated with combined chemoimmunotherapy than that determined using the 28-8 and SP142 assays. Therefore, the 22C3 assay may be useful for clinical decision-making for patients with NSCLC treated with combined chemoimmunotherapy. Trial registration number: UMIN 000043958.
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Affiliation(s)
- Yuki Katayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenji Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyuki Fujii
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satomi Morita
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiko Tanimura
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Asuka Okada
- Department of Respiratory Medicine, Saiseikai Suita Hospital, Osaka, Japan
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Kyoto, Japan
| | - Osamu Hiranuma
- Department of Respiratory Medicine, Otsu City Hospital, Shiga, Japan
| | - Takahiro Yamada
- Department of Respiratory Medicine, Matsushita Memorial Hospital, Osaka, Japan
| | - Takahiro Ota
- Department of Respiratory Medicine, Kyoto city Hospital, Kyoto, Japan
| | - Taishi Harada
- Department of Medical Oncology, Fukuchiyama City Hospital, Kyoto, Japan
| | - Isao Hasegawa
- Department of Respiratory Medicine, Saiseikai Shigaken Hospital, Shiga, Japan
| | - Masahiro Iwasaku
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinsaku Tokuda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Noriyuki Tanaka
- Department of Pathology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Aya Miyagawa-Hayashino
- Department of Pathology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Takei S, Kawachi H, Yamada T, Tamiya M, Negi Y, Goto Y, Nakao A, Shiotsu S, Tanimura K, Takeda T, Okada A, Harada T, Date K, Chihara Y, Hasegawa I, Tamiya N, Katayama Y, Nishioka N, Morimoto K, Iwasaku M, Tokuda S, Kijima T, Takayama K. Prognostic impact of clinical factors for immune checkpoint inhibitor with or without chemotherapy in older patients with non-small cell lung cancer and PD-L1 TPS ≥ 50. Front Immunol 2024; 15:1348034. [PMID: 38464519 PMCID: PMC10920331 DOI: 10.3389/fimmu.2024.1348034] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/12/2024] [Indexed: 03/12/2024] Open
Abstract
Introduction The proportion of older patients diagnosed with advanced-stage non-small cell lung cancer (NSCLC) has been increasing. Immune checkpoint inhibitor (ICI) monotherapy (MONO) and combination therapy of ICI and chemotherapy (COMBO) are standard treatments for patients with NSCLC and programmed cell death ligand-1 (PD-L1) tumor proportion scores (TPS) ≥ 50%. However, evidence from the clinical trials specifically for older patients is limited. Thus, it is unclear which older patients benefit more from COMBO than MONO. Methods We retrospectively analyzed 199 older NSCLC patients of Eastern Cooperative Oncology Group performance status (ECOG PS) 0-1 and PD-L1 TPS ≥ 50% who were treated with MONO or COMBO. We analyzed the association between treatment outcomes and baseline patient characteristics in each group, using propensity score matching. Results Of the 199 patients, 131 received MONO, and 68 received COMBO. The median overall survival (OS; MONO: 25.2 vs. COMBO: 42.2 months, P = 0.116) and median progression-free survival (PFS; 10.9 vs. 11.8 months, P = 0.231) did not significantly differ between MONO and COMBO group. In the MONO group, OS was significantly shorter in patients without smoking history compared to those with smoking history [HR for smoking history against non-smoking history: 0.36 (95% CI: 0.16-0.78), P = 0.010]. In the COMBO group, OS was significantly shorter in patients with PS 1 than those with PS 0 [HR for PS 0 against PS 1: 3.84 (95% CI: 1.44-10.20), P = 0.007] and for patients with squamous cell carcinoma (SQ) compared to non-squamous cell carcinoma (non-SQ) [HR for SQ against non-SQ: 0.17 (95% CI: 0.06-0.44), P < 0.001]. For patients with ECOG PS 0 (OS: 26.1 months vs. not reached, P = 0.0031, PFS: 6.5 vs. 21.7 months, P = 0.0436) or non-SQ (OS: 23.8 months vs. not reached, P = 0.0038, PFS: 10.9 vs. 17.3 months, P = 0.0383), PFS and OS were significantly longer in the COMBO group. Conclusions ECOG PS and histological type should be considered when choosing MONO or COMBO treatment in older patients with NSCLC and PD-L1 TPS ≥ 50%.
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Affiliation(s)
- Shota Takei
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hayato Kawachi
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Motohiro Tamiya
- Department of Thoracic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Yoshiki Negi
- Department of Respiratory Medicine and Hematology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Yasuhiro Goto
- Department of Respiratory Medicine, Fujita Health University School of Medicine, Toyoake, Japan
| | - Akira Nakao
- Department of Respiratory Medicine, Fukuoka University Hospital, Nanakuma, Japan
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Keiko Tanimura
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Asuka Okada
- Department of Respiratory Medicine, Saiseikai Suita Hospital, Suita, Japan
| | - Taishi Harada
- Department of Medical Oncology, Fukuchiyama City Hospital, Fukuchiyama, Japan
| | - Koji Date
- Department of Pulmonary Medicine, Kyoto Chubu Medical Center, Nantan, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Uji, Japan
| | - Isao Hasegawa
- Department of Respiratory Medicine, Saiseikai Shigaken Hospital, Rittou, Japan
| | - Nobuyo Tamiya
- Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Yuki Katayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Naoya Nishioka
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenji Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masahiro Iwasaku
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinsaku Tokuda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takashi Kijima
- Department of Respiratory Medicine and Hematology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Shimizu A, Fukasawa M, Mitani K, Goto K, Wakamoto A, Hatsuyama T, Hoshi T, Hasegawa I, Sato H. Association of Geriatric Nutritional Risk Index With Immune Checkpoint Inhibitor Treatment Duration and Adverse Events in Lung Cancer. In Vivo 2024; 38:418-424. [PMID: 38148096 PMCID: PMC10756459 DOI: 10.21873/invivo.13454] [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: 10/03/2023] [Revised: 10/27/2023] [Accepted: 11/09/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND/AIM Compared to conventional cytotoxic anticancer agent-based therapy, treatment with immune checkpoint inhibitors (ICI) significantly prolongs overall survival. The Geriatric Nutritional Risk Index (GNRI) has been used as a new prognostic indicator in cancer. As nutritional status is associated with prognosis and indicates treatment response, we investigated the effect of the pretreatment GNRI on the (1) occurrence of ICI-induced immune-related adverse events (ir-AE) and (2) association with time to treatment failure (TTF) in ICI monotherapy for lung cancer. PATIENTS AND METHODS In this study, 127 patients with lung cancer who were treated with ICI monotherapy were retrospectively enrolled. Based on a cutoff value of 92 for the GNRI, we investigated intergroup differences in the occurrence of adverse events and their association with TTF in the High-GNRI (≥92) and Low-GNRI (<92) groups. For intergroup comparisons, we used the Student's t-test, Welch's t-test, Fisher's direct probability test, and Mann-Whitney's U-test, and factors with p<0.05 in the intergroup comparison were extracted as explanatory variables. RESULTS Based on the pretreatment GNRI, the median TTF was 5.1 months (95%CI=2.4-7.9 months) in the High-GNRI group and 2.3 months (95%CI=1.6-3.1 months) in the Low-GNRI group, with the High-GNRI group having a significantly longer TTF (p<0.01). The incidence of skin rash (p=0.0129) and pruritus (p<0.01) was significantly higher in the High-GNRI group. CONCLUSION Pretreatment GNRI influences the continuation of ICI monotherapy. The High-GNRI group demonstrated a significantly higher frequency of skin lesions, which may have influenced the prolongation of TTF.
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Affiliation(s)
- Atsuya Shimizu
- Department of Pharmacy, JR Sapporo Hospital, Sapporo, Japan
| | - Miyu Fukasawa
- Pharmaceutical Division, Sapporo Minami-sanjo Hospital, Hokkaido, Japan
| | - Koharu Mitani
- Department of Pharmacy, JR Sapporo Hospital, Sapporo, Japan
| | - Keisuke Goto
- Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Japan
| | - Azusa Wakamoto
- Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Japan
| | - Tae Hatsuyama
- Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Japan
| | - Takanobu Hoshi
- Pharmaceutical Division, Sapporo Minami-sanjo Hospital, Hokkaido, Japan
| | - Isao Hasegawa
- Department of Pharmacy, JR Sapporo Hospital, Sapporo, Japan
| | - Hideki Sato
- Pharmaceutical Division, Sapporo Minami-sanjo Hospital, Hokkaido, Japan;
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Shimizu A, Fukasawa M, Endo R, Nakamura T, Yamada S, Fujibayashi R, Kikuchi K, Tanaka M, Hasegawa I, Sato H. Association of Geriatric Nutritional Risk Index With Adverse Event and Treatment Duration in Adjuvant Chemotherapy for Patients With Colorectal Cancer. In Vivo 2024; 38:453-459. [PMID: 38148079 PMCID: PMC10756466 DOI: 10.21873/invivo.13459] [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: 08/29/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND/AIM In recent years, the Geriatric Nutritional Risk Index (GNRI) has been reported as a predictor of prognosis in many patients with cancer. This study investigated the association of preoperative GNRI with the occurrence of adverse events and duration of treatment with capecitabine plus oxaliplatin (CAPOX), a postoperative adjuvant chemotherapy, in 59 patients with colorectal cancer from September 2019 to April 2022. PATIENTS AND METHODS A cut-off value of 100.9 was used to categorize patients into high and low GNRI groups. RESULTS The incidence of grade ≥2 leukopenia (p=0.03), and all grades peripheral neuropathy (p=0.04) were significantly more frequent in the low GNRI group. Analysis of factors influencing treatment duration by univariate and multivariate Cox regression proportional hazards models showed a significant difference in GNRI (p=0.0097). CONCLUSION GNRI, a nutritional indicator assessed before the start of treatment, influences the occurrence of adverse events and duration of treatment with CAPOX as adjuvant chemotherapy. To complete CAPOX therapy, preoperatively, it is important to assess the patients' nutritional status using the GNRI and to actively intervene in nutritional therapy.
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Affiliation(s)
- Atsuya Shimizu
- Department of Pharmacy, JR Sapporo Hospital, Sapporo, Japan
| | - Miyu Fukasawa
- Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Japan
| | - Ryosuke Endo
- Department of Pharmacy, JR Sapporo Hospital, Sapporo, Japan
| | | | - Shogo Yamada
- Department of Pharmacy, Hokkaido Gastroenterology Hospital, Sapporo, Japan
| | - Ryo Fujibayashi
- Department of Pharmacy, Hokkaido Gastroenterology Hospital, Sapporo, Japan
| | - Ken Kikuchi
- Department of Pharmacy, Public Interest Association of Medical Service for Workers Kin-ikyo Chuo Hospital, Sapporo, Japan
| | - Masaomi Tanaka
- Department of Pharmacy, Hokkaido Gastroenterology Hospital, Sapporo, Japan
| | - Isao Hasegawa
- Department of Pharmacy, JR Sapporo Hospital, Sapporo, Japan
| | - Hideki Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Japan;
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Morimoto K, Yamada T, Kawachi H, Tamiya M, Negi Y, Goto Y, Nakao A, Shiotsu S, Tanimura K, Takeda T, Okada A, Harada T, Date K, Chihara Y, Hasegawa I, Tamiya N, Nishioka N, Katayama Y, Iwasaku M, Tokuda S, Kijima T, Takayama K. Chemoimmunotherapy Versus Pembrolizumab as a First-Line Treatment for Patients with Advanced Non-small Cell Lung Cancer and High PD-L1 Expression: Focus on the Role of Performance Status. Target Oncol 2023; 18:915-925. [PMID: 37902896 DOI: 10.1007/s11523-023-01012-1] [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] [Accepted: 10/14/2023] [Indexed: 11/01/2023]
Abstract
BACKGROUND Immune checkpoint inhibitor (ICI) monotherapy and ICI plus chemotherapy are approved first-line treatments for patients with non-small cell lung cancer (NSCLC) expressing high levels of programmed cell death-ligand 1 (PD-L1). However, appropriate treatment for patients showing high PD-L1 expression and poor performance status (PS) is not well defined. OBJECTIVE The aim of this study was to identify a treatment option that is better for these patients in a real-world setting. PATIENTS AND METHODS A total of 425 patients with NSCLC and high PD-L1 expression were included retrospectively. All patients received either pembrolizumab monotherapy or ICI plus chemotherapy as the first-line treatment. Patients were subdivided into good (PS score 0 or 1; n = 354) and poor PS groups (PS score 2 or 3; n = 71). Early progressive disease (PD) was defined as PD within 3 months of ICI-based therapy initiation. RESULTS The good PS group had significantly longer progression-free survival (PFS) and overall survival (OS) than the poor PS group upon ICI-based therapy administration. In the poor PS group, no significant difference was observed in PFS and OS between pembrolizumab monotherapy and ICI plus chemotherapy. In the good PS group, pembrolizumab monotherapy, PD-L1 50-89%, and liver metastasis were associated with early PD, as determined using multivariate logistic regression analyses. However, in the poor PS group, the multivariate logistic regression analyses did not show an association between pembrolizumab monotherapy and early PD. CONCLUSIONS In patients with NSCLC exhibiting poor PS and high PD-L1 expression, ICI plus chemotherapy did not confer PFS or OS benefit compared with pembrolizumab monotherapy.
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Affiliation(s)
- Kenji Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan.
| | - Hayato Kawachi
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan
| | - Motohiro Tamiya
- Department of Thoracic Oncology, Osaka International Cancer Institute, Osaka, Osaka, Japan
| | - Yoshiki Negi
- Department of Respiratory Medicine and Hematology, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Yasuhiro Goto
- Department of Respiratory Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Akira Nakao
- Department of Respiratory Medicine, Fukuoka University Hospital, Hakata, Fukuoka, Japan
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Kyoto, Japan
| | - Keiko Tanimura
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Kyoto, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Kyoto, Japan
| | - Asuka Okada
- Department of Respiratory Medicine, Saiseikai Suita Hospital, Suita, Osaka, Japan
| | - Taishi Harada
- Department of Medical Oncology, Fukuchiyama City Hospital, Fukuchiyama, Kyoto, Japan
| | - Koji Date
- Department of Pulmonary Medicine, Kyoto Chubu Medical Center, Nantan, Kyoto, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Uji, Kyoto, Japan
| | - Isao Hasegawa
- Department of Respiratory Medicine, Saiseikai Shiga Hospital, Rittou, Shiga, Japan
| | - Nobuyo Tamiya
- Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Kyoto, Japan
| | - Naoya Nishioka
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan
| | - Yuki Katayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan
| | - Masahiro Iwasaku
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan
| | - Shinsaku Tokuda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan
| | - Takashi Kijima
- Department of Respiratory Medicine and Hematology, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465, Kajiicho, Kawaramachidori-hiro, Kyoto, Kyoto, 602-0841, Japan
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7
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Zhou T, Kawasaki K, Suzuki T, Hasegawa I, Roe AW, Tanigawa H. Mapping information flow between the inferotemporal and prefrontal cortices via neural oscillations in memory retrieval and maintenance. Cell Rep 2023; 42:113169. [PMID: 37740917 DOI: 10.1016/j.celrep.2023.113169] [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: 03/08/2023] [Revised: 08/15/2023] [Accepted: 09/07/2023] [Indexed: 09/25/2023] Open
Abstract
Interaction between the inferotemporal (ITC) and prefrontal (PFC) cortices is critical for retrieving information from memory and maintaining it in working memory. Neural oscillations provide a mechanism for communication between brain regions. However, it remains unknown how information flow via neural oscillations is functionally organized in these cortices during these processes. In this study, we apply Granger causality analysis to electrocorticographic signals from both cortices of monkeys performing visual association tasks to map information flow. Our results reveal regions within the ITC where information flow to and from the PFC increases via specific frequency oscillations to form clusters during memory retrieval and maintenance. Theta-band information flow in both directions increases in similar regions in both cortices, suggesting reciprocal information exchange in those regions. These findings suggest that specific subregions function as nodes in the memory information-processing network between the ITC and the PFC.
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Affiliation(s)
- Tao Zhou
- Department of Neurosurgery of the Second Affiliated Hospital and Interdisciplinary Institute of Neuroscience and Technology, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China; MOE Frontier Science Center for Brain Science and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Niigata, Niigata 951-8501, Japan
| | - Takafumi Suzuki
- Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita, Osaka 565-0871, Japan; Osaka University, Suita, Osaka 565-0871, Japan
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Niigata, Niigata 951-8501, Japan
| | - Anna Wang Roe
- Department of Neurosurgery of the Second Affiliated Hospital and Interdisciplinary Institute of Neuroscience and Technology, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China; MOE Frontier Science Center for Brain Science and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China.
| | - Hisashi Tanigawa
- Department of Neurosurgery of the Second Affiliated Hospital and Interdisciplinary Institute of Neuroscience and Technology, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China; MOE Frontier Science Center for Brain Science and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China; Department of Physiology, Niigata University School of Medicine, Niigata, Niigata 951-8501, Japan.
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8
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Kawachi H, Yamada T, Tamiya M, Negi Y, Goto Y, Nakao A, Shiotsu S, Tanimura K, Takeda T, Okada A, Harada T, Date K, Chihara Y, Hasegawa I, Tamiya N, Ishida M, Katayama Y, Morimoto K, Iwasaku M, Tokuda S, Kijima T, Takayama K. Concomitant Proton Pump Inhibitor Use With Pembrolizumab Monotherapy vs Immune Checkpoint Inhibitor Plus Chemotherapy in Patients With Non-Small Cell Lung Cancer. JAMA Netw Open 2023; 6:e2322915. [PMID: 37432682 DOI: 10.1001/jamanetworkopen.2023.22915] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/12/2023] Open
Abstract
Importance Immune checkpoint inhibitor (ICI) monotherapy with pembrolizumab and ICI plus chemotherapy have been approved as first-line treatments for non-small cell lung cancer (NSCLC) for patients with a programmed cell death ligand-1 (PD-L1) tumor proportion score (TPS) of 50% or more, but the choice between these 2 therapeutic options is unclear. Objective To clarify the association of a history of concurrent medication use with treatment outcomes for ICIs with or without chemotherapy in patients with NSCLC with a high PD-L1 TPS and to determine whether these clinical histories are biomarkers for appropriate treatment selection. Design, Setting, and Participants This retrospective, multicenter cohort study at 13 hospitals in Japan included patients with advanced NSCLC with a PD-L1 TPS of 50% or more who had received pembrolizumab ICI monotherapy or ICI plus chemotherapy as the initial treatment between March 2017 and December 2020. The median (IQR) follow-up duration was 18.5 (9.2-31.2) months. Data were analyzed from April 2022 through May 2023. Exposure ICI monotherapy with pembrolizumab or ICI plus chemotherapy as first-line treatment. Main Outcomes and Measures The primary analysis was the association of treatment outcomes with baseline patient characteristics, including concomitant drug history, after propensity score matching. Cox proportional hazard models were used to determine the associations of patient characteristics with survival outcomes. Logistic regression analysis was used to determine the association of concomitant medication history with treatment outcomes and other patient characteristics. Results A total of 425 patients with NSCLC were enrolled in the study including 271 patients (median [range] age, 72 [43-90] years; 215 [79%] men) who were treated with pembrolizumab monotherapy as the first-line treatment and 154 patients (median [range] age, 69 [36-86] years; 121 [79%] men) who were treated with ICI plus chemotherapy as the first-line treatment. In multivariable analysis, a history of proton pump inhibitor (PPI) use was independently associated with shorter progression-free survival (PFS) in the pembrolizumab monotherapy group (hazard ratio [HR], 1.38; 95% CI, 1.00-1.91; P = .048), but not in the ICI plus chemotherapy group. In patients with a PPI history, both the median (IQR) PFS (19.3 [9.0 to not reached] months vs 5.7 [2.4 to 15.2] months; HR, 0.38; 95% CI, 0.20-0.72; P = .002) and the median (IQR) overall survival (not reached [9.0 months to not reached) vs 18.4 [10.5 to 50.0] months; HR, 0.43; 95% CI, 0.20-0.92; P = .03) were significantly longer in the ICI plus chemotherapy group than in the pembrolizumab monotherapy group. In patients without a history of PPI use, both the median (IQR) PFS (18.8 months [6.6 months to not reached] vs 10.6 months [2.7 months to not reached]; HR, 0.81; 95% CI, 0.56-1.17; P = .26) and the median (IQR) overall survival (not reached [12.6 months to not reached] vs 29.9 [13.3 to 54.3] months, HR, 0.75; 95% CI, 0.48-1.18; P = .21) did not differ between groups. Conclusions and Relevance This cohort study found that a history of PPI use could be an important clinical factor in treatment decision-making for patients with NSCLC with a PD-L1 TPS of 50% or more.
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Affiliation(s)
- Hayato Kawachi
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Motohiro Tamiya
- Department of Thoracic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Yoshiki Negi
- Department of Respiratory Medicine and Hematology, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Yasuhiro Goto
- Department of Respiratory Medicine, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Akira Nakao
- Department of Respiratory Medicine, Fukuoka University Hospital, Nanakuma, Fukuoka, Japan
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Keiko Tanimura
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Asuka Okada
- Department of Respiratory Medicine, Saiseikai Suita Hospital, Suita, Osaka, Japan
| | - Taishi Harada
- Department of Medical Oncology, Fukuchiyama City Hospital, Fukuchiyama, Kyoto, Japan
| | - Koji Date
- Department of Pulmonary Medicine, Kyoto Chubu Medical Center, Nantan, Kyoto, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Uji, Kyoto, Japan
| | - Isao Hasegawa
- Department of Respiratory Medicine, Saiseikai Shigaken Hospital, Rittou, Shiga, Japan
| | - Nobuyo Tamiya
- Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Masaki Ishida
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuki Katayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenji Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masahiro Iwasaku
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinsaku Tokuda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takashi Kijima
- Department of Respiratory Medicine and Hematology, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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9
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Egawa J, Kawasaki K, Hayashi T, Akikawa R, Someya T, Hasegawa I. Theory of mind tested by implicit false belief: a simple and full-fledged mental state attribution. FEBS J 2022; 289:7343-7358. [PMID: 34914205 PMCID: PMC10078721 DOI: 10.1111/febs.16322] [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: 10/22/2020] [Revised: 10/15/2021] [Accepted: 12/14/2021] [Indexed: 01/13/2023]
Abstract
About 40 years have passed since 'theory of mind (ToM)' research started. The false-belief test is used as a litmus test for ToM ability. The implicit false-belief test has renewed views of ToM in several disciplines, including psychology, psychiatry, and neuroscience. Many important questions have been considered via the paradigm of implicit false belief. We recently addressed the phylogenetic and physiological aspects of ToM using a version of this paradigm combined with the chemogenetic technique on Old World monkeys. We sought to create animal models for autism that exhibit behavioral phenotypes similar to human symptoms. The simultaneous manipulation of neural circuits and assessments of changes in phenotypes can help identify the causal neural substrate of ToM.
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Affiliation(s)
- Jun Egawa
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Japan
| | - Taketsugu Hayashi
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - Ryota Akikawa
- Department of Physiology, Niigata University School of Medicine, Japan
| | - Toshiyuki Someya
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Japan
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10
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Shiotsu S, Yoshimura A, Yamada T, Morimoto K, Tsuchiya M, Yoshioka H, Hiranuma O, Chihara Y, Yamada T, Hasegawa I, Ohta T, Takeda T, Hiraoka N, Takayama K. Pembrolizumab monotherapy for untreated PD-L1-Positive non-small cell lung cancer in the elderly or those with poor performance status: A prospective observational study. Front Oncol 2022; 12:904644. [PMID: 36158655 PMCID: PMC9504658 DOI: 10.3389/fonc.2022.904644] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 03/25/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives We investigated the efficacy and safety of pembrolizumab monotherapy as first-line treatment for poor Eastern Cooperative Oncology Group performance status (PS) and elderly patients with programmed cell death-ligand 1 (PD-L1)-positive advanced non-small cell lung cancer (NSCLC). We also investigated clinical prognostic factors for the efficacy of pembrolizumab monotherapy, based on patient characteristics. Materials and methods In this prospective observational study, PS-2 and elderly NSCLC patients with PD-L1 tumor proportion score (TPS) ≥1% who received first-line pembrolizumab monotherapy, from October 2019 to March 2021, at 10 institutions in Japan were enrolled. Patients judged eligible by their physicians for combined chemotherapy and PD-1/PD-L1 inhibitors as first-line treatment were excluded. Clinicopathological characteristics and adverse events were investigated for correlation with clinical outcomes. Results Forty patients were enrolled in the study. The median progression-free survival (PFS) of patients with PS 2 and those aged ≥ 75 years were 4.4 (95% confidence interval [CI]: 0.9–14.4) months and 5.3 (95% CI 2.9–9.4) months, respectively. The median overall survival (OS) of patients with PS 2 and those aged ≥ 75 years were 11.6 (95% CI: 1.4–not evaluable [NE]) months and 11.6 (95% CI 7.4–18.1) months, respectively. Immune-related adverse events (irAEs) were observed in 19 patients; 6 patients had severe irAEs of Common Terminology Criteria for Adverse Events (CTCAE) Grade 3 or higher. Patients who achieved stable disease or better, had a statistically significant increase in PFS (p < 0.001) and OS (p < 0.001). In the multivariate analysis, the acquisition of disease control with pembrolizumab monotherapy was an independent prognostic factor for PFS and OS. Conclusion Pembrolizumab monotherapy was relatively effective and tolerable as a first-line treatment for patients with PD-L1-positive advanced NSCLC who had poor PS or were elderly. Our results suggest that disease control might be an independent prognostic factor for PFS and OS in this population. (UMIN000044052 https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000050176)
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Affiliation(s)
- Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Akihiro Yoshimura
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- *Correspondence: Tadaaki Yamada,
| | - Kenji Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Michiko Tsuchiya
- Department of Respiratory Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Hiroshige Yoshioka
- Department of Thoracic Oncology, Kansai Medical University Hospital, Osaka, Japan
| | - Osamu Hiranuma
- Department of Respiratory Medicine, Otsu City Hospital, Shiga, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Kyoto, Japan
| | - Takahiro Yamada
- Department of Respiratory Medicine, Matsushita Memorial Hospital, Osaka, Japan
| | - Isao Hasegawa
- Department of Respiratory Medicine, Saiseikai Shigaken Hospital, Shiga, Japan
| | - Takahiro Ohta
- Department of Respiratory Medicine, Kyoto City Hospital, Kyoto, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Noriya Hiraoka
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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11
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Morimoto K, Sawada R, Yamada T, Azuma K, Ito K, Goto Y, Kimura H, Harada T, Shiotsu S, Tamiya N, Chihara Y, Takeda T, Hiranuma O, Hasegawa I, Morimoto Y, Iwasaku M, Tokuda S, Takayama K. A Real-World Analysis of Immune Checkpoint Inhibitor-Based Therapy After Osimertinib Treatment in Patients With EGFR-Mutant NSCLC. JTO Clin Res Rep 2022; 3:100388. [PMID: 36082280 PMCID: PMC9445370 DOI: 10.1016/j.jtocrr.2022.100388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/04/2022] [Accepted: 07/23/2022] [Indexed: 12/02/2022] Open
Abstract
Introduction The use of immune checkpoint inhibitors (ICIs) with chemotherapy has increased the survival of patients with advanced NSCLC. Nevertheless, the efficacy of ICI treatment for NSCLC with EGFR mutations is limited. Previous studies have not evaluated the efficacy of ICI treatment after osimertinib treatment in real-world settings. Methods This study performed a retrospective analysis of the association between clinical characteristics and ICI efficacy in patients with EGFR-mutant NSCLC treated with ICIs after osimertinib treatment at 12 institutions in Japan from March 2016 to March 2021. Results Among 80 patients with EGFR-mutant lung cancer, 42 received ICI monotherapy and 38 received chemoimmunotherapy. In the chemoimmunotherapy group, the progression-free survival (PFS) was significantly longer in the group that exhibited PFS more than 10 months with osimertinib than in the group that exhibited PFS less than or equal to 10 months with osimertinib (8.4 mo versus 3.8 mo, p = 0.026). Nevertheless, there was no significant difference in PFS in the ICI monotherapy group (1.7 mo versus 1.5 mo, p = 0.45). Regardless of the EGFR mutation subtype, PFS of osimertinib treatment was a predictor of the PFS of chemoimmunotherapy (exon 19 deletion mutation: p = 0.03 and exon 21 L858R mutation: p = 0.001). Conclusions The PFS of osimertinib might be a predictor of PFS of chemoimmunotherapy in patients with EGFR-mutant NSCLC. Further clinical investigations on the predictors of efficacy of administering ICIs after osimertinib treatment are required.
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12
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Uda S, Yamada T, Yoshimura A, Goto Y, Yoshimine K, Nakamura Y, Shiotsu S, Yokoi T, Tamiya N, Kimura H, Chihara Y, Umeda Y, Izumi M, Takeda T, Yamada T, Hibino M, Hiranuma O, Ito K, Okada A, Osugi S, Takemura Y, Ishii H, Chibana K, Hasegawa I, Morimoto Y, Iwasaku M, Tokuda S, Takayama K. Clinical impact of amrubicin monotherapy in patients with relapsed small cell lung cancer: a multicenter retrospective study. Transl Lung Cancer Res 2022; 11:1847-1857. [PMID: 36248326 PMCID: PMC9554692 DOI: 10.21037/tlcr-22-160] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/11/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Sayaka Uda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akihiro Yoshimura
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuhiro Goto
- Department of Respiratory Medicine, Fujita Health University School of Medicine, Aichi, Japan
| | - Kohei Yoshimine
- Department of Respiratory Medicine, Izuka Hospital, Fukuoka, Japan
| | - Yoichi Nakamura
- Division of Thoracic Oncology, Tochigi Cancer Center, Tochigi, Japan
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Takashi Yokoi
- Division of Respiratory Medicine, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Nobuyo Tamiya
- Department of Pulmonary Medicine, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - Hideharu Kimura
- Department of Respiratory Medicine, Kanazawa University, Ishikawa, Japan
| | - Yusuke Chihara
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center, Kyoto, Japan
| | - Yukihiro Umeda
- Third Department of Internal Medicine, Faculty of Medical Science, University of Fukui, Fukui, Japan
| | - Miiru Izumi
- Department of Respiratory Medicine, National Hospital Organization Omuta National Hospital, Fukuoka, Japan
| | - Takayuki Takeda
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital, Kyoto, Japan
| | - Takahiro Yamada
- Department of Pulmonary Medicine, Matsushita Memorial Hospital, Osaka, Japan
| | - Makoto Hibino
- Department of Respiratory Medicine, Shonan Fujisawa Tokushukai Hospital, Kanagawa, Japan
| | - Osamu Hiranuma
- Department of Pulmonary Medicine, Otsu City Hospital, Shiga, Japan
| | - Kazuhiro Ito
- Department of Thoracic Surgery, Kyoto Yamashiro Medical Center, Kyoto, Japan
| | - Asuka Okada
- Department of Respiratory Medicine, Saiseikai Suita Hospital, Osaka, Japan
| | - Shuji Osugi
- Department of Respiratory Medicine, Japan Community Health Care Organization Kobe Central Hospital, Hyogo, Japan
| | - Yoshizumi Takemura
- Department of Respiratory Medicine, Japan Community Health Care Organization Kyoto Kuramaguchi Medical Center, Kyoto, Japan
| | - Hiroshi Ishii
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Kenji Chibana
- Department of Respiratory Medicine, National Hospital Organization Okinawa National Hospital, Okinawa, Japan
| | - Isao Hasegawa
- Department of Respiratory Medicine, Saiseikai Shiga Hospital, Shiga, Japan
| | - Yoshie Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masahiro Iwasaku
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinsaku Tokuda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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13
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Tanigawa H, Majima K, Takei R, Kawasaki K, Sawahata H, Nakahara K, Iijima A, Suzuki T, Kamitani Y, Hasegawa I. Decoding distributed oscillatory signals driven by memory and perception in the prefrontal cortex. Cell Rep 2022; 39:110676. [PMID: 35417680 DOI: 10.1016/j.celrep.2022.110676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 08/06/2021] [Revised: 02/08/2022] [Accepted: 03/22/2022] [Indexed: 11/19/2022] Open
Abstract
Sensory perception and memory recall generate different conscious experiences. Although externally and internally driven neural activities signifying the same perceptual content overlap in the sensory cortex, their distribution in the prefrontal cortex (PFC), an area implicated in both perception and memory, remains elusive. Here, we test whether the local spatial configurations and frequencies of neural oscillations driven by perception and memory recall overlap in the macaque PFC using high-density electrocorticography and multivariate pattern analysis. We find that dynamically changing oscillatory signals distributed across the PFC in the delta-, theta-, alpha-, and beta-band ranges carry significant, but mutually different, information predicting the same feature of memory-recalled internal targets and passively perceived external objects. These findings suggest that the frequency-specific distribution of oscillatory neural signals in the PFC serves cortical signatures responsible for distinguishing between different types of cognition driven by external perception and internal memory.
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Affiliation(s)
- Hisashi Tanigawa
- Department of Neurosurgery of the Second Affiliated Hospital and Interdisciplinary Institute of Neuroscience and Technology, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou 310016, China; Department of Physiology, Niigata University School of Medicine, Niigata, Niigata 951-8501, Japan; Center for Transdisciplinary Research, Niigata University, Niigata, Niigata 951-8501, Japan
| | - Kei Majima
- Graduate School of Informatics, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan; ATR Computational Neuroscience Laboratories, Keihanna Science City, Kyoto 619-0288, Japan
| | - Ren Takei
- Department of Bio-cybernetics, Faculty of Engineering, Niigata University, Niigata, Niigata 950-2181, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Niigata, Niigata 951-8501, Japan
| | - Hirohito Sawahata
- Department of Physiology, Niigata University School of Medicine, Niigata, Niigata 951-8501, Japan; Department of Industrial Engineering, Mechanical and Control Engineering Course, National Institute of Technology (KOSEN), Ibaraki College, Hitachinaka, Ibaraki 312-8508, Japan
| | - Kiyoshi Nakahara
- Center for Transdisciplinary Research, Niigata University, Niigata, Niigata 951-8501, Japan; Research Center for Brain Communication, Kochi University of Technology, Kami, Kochi 782-8502, Japan
| | - Atsuhiko Iijima
- Department of Bio-cybernetics, Faculty of Engineering, Niigata University, Niigata, Niigata 950-2181, Japan
| | - Takafumi Suzuki
- Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita, Osaka 565-0871, Japan; Osaka University, Suita, Osaka 565-0871, Japan
| | - Yukiyasu Kamitani
- Graduate School of Informatics, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan; ATR Computational Neuroscience Laboratories, Keihanna Science City, Kyoto 619-0288, Japan
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Niigata, Niigata 951-8501, Japan; Center for Transdisciplinary Research, Niigata University, Niigata, Niigata 951-8501, Japan.
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14
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Liu N, Iijima A, Iwata Y, Ohashi K, Fujisawa N, Sasaoka T, Hasegawa I. Mental construction of object symbols from meaningless elements by Japanese macaques (Macaca fuscata). Sci Rep 2022; 12:3566. [PMID: 35246592 PMCID: PMC8897398 DOI: 10.1038/s41598-022-07563-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 09/24/2021] [Accepted: 02/21/2022] [Indexed: 11/09/2022] Open
Abstract
When writing an object's name, humans mentally construct its spelling. This capacity critically depends on use of the dual-structured linguistic system, in which meaningful words are represented by combinations of meaningless letters. Here we search for the evolutionary origin of this capacity in primates by designing dual-structured bigram symbol systems where different combinations of meaningless elements represent different objects. Initially, we trained Japanese macaques (Macaca fuscata) in an object-bigram symbolization task and in a visually-guided bigram construction task. Subsequently, we conducted a probe test using a symbolic bigram construction task. From the initial trial of the probe test, the Japanese macaques could sequentially choose the two elements of a bigram that was not actually seen but signified by a visually presented object. Moreover, the animals' spontaneous choice order bias, developed through the visually-guided bigram construction learning, was immediately generalized to the symbolic bigram construction test. Learning of dual-structured symbols by the macaques possibly indicates pre-linguistic adaptations for the ability of mentally constructing symbols in the common ancestors of humans and Old World monkeys.
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Affiliation(s)
- Nanxi Liu
- Department of Physiology, Niigata University School of Medicine, 1-757 Asahimachi St, Chuo-ku, Niigata, 951-8510, Japan
| | - Atsuhiko Iijima
- Department of Physiology, Niigata University School of Medicine, 1-757 Asahimachi St, Chuo-ku, Niigata, 951-8510, Japan. .,Graduate School of Science and Technology, Niigata University, Niigata, Japan. .,School of Health Sciences, Niigata University, Niigata, Japan. .,Neurophysiology & Biomedical Engineering Lab, Interdisciplinary Program of Biomedical Engineering, Assistive Technology and Art and Sports Sciences, Faculty of Engineering, Niigata University, 8050 2-no-chou, Ikarashi, Nishi-ku, Niigata, 950-2181, Japan.
| | - Yutaka Iwata
- Department of Physiology, Niigata University School of Medicine, 1-757 Asahimachi St, Chuo-ku, Niigata, 951-8510, Japan.,Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Kento Ohashi
- Department of Physiology, Niigata University School of Medicine, 1-757 Asahimachi St, Chuo-ku, Niigata, 951-8510, Japan.,Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | | | | | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, 1-757 Asahimachi St, Chuo-ku, Niigata, 951-8510, Japan.
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15
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Suda Y, Tada M, Matsuo T, Kawasaki K, Saigusa T, Ishida M, Mitsui T, Kumano H, Kirihara K, Suzuki T, Matsumoto K, Hasegawa I, Kasai K, Uka T. Prediction-Related Frontal-Temporal Network for Omission Mismatch Activity in the Macaque Monkey. Front Psychiatry 2022; 13:557954. [PMID: 35558420 PMCID: PMC9086590 DOI: 10.3389/fpsyt.2022.557954] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 03/24/2022] [Indexed: 11/24/2022] Open
Abstract
Sensory prediction is considered an important element of mismatch negativity (MMN) whose reduction is well known in patients with schizophrenia. Omission MMN is a variant of the MMN which is elicited by the absence of a tone previously sequentially presented. Omission MMN can eliminate the effects of sound differences in typical oddball paradigms and affords the opportunity to identify prediction-related signals in the brain. Auditory predictions are thought to reflect bottom-up and top-down processing within hierarchically organized auditory areas. However, the communications between the various subregions of the auditory cortex and the prefrontal cortex that generate and communicate sensory prediction-related signals remain poorly understood. To explore how the frontal and temporal cortices communicate for the generation and propagation of such signals, we investigated the response in the omission paradigm using electrocorticogram (ECoG) electrodes implanted in the temporal, lateral prefrontal, and orbitofrontal cortices of macaque monkeys. We recorded ECoG data from three monkeys during the omission paradigm and examined the functional connectivity between the temporal and frontal cortices by calculating phase-locking values (PLVs). This revealed that theta- (4-8 Hz), alpha- (8-12 Hz), and low-beta- (12-25 Hz) band synchronization increased at tone onset between the higher auditory cortex and the frontal pole where an early omission response was observed in the event-related potential (ERP). These synchronizations were absent when the tone was omitted. Conversely, low-beta-band (12-25 Hz) oscillation then became stronger for tone omission than for tone presentation approximately 200 ms after tone onset. The results suggest that auditory input is propagated to the frontal pole via the higher auditory cortex and that a reciprocal network may be involved in the generation of auditory prediction and prediction error. As impairments of prediction may underlie MMN reduction in patients with schizophrenia, an aberrant hierarchical temporal-frontal network might be related to this pathological condition.
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Affiliation(s)
- Yuki Suda
- Department of Integrative Physiology, Graduate School of Medicine, University of Yamanashi, Chuo, Japan.,Brain Science Institute, Tamagawa University, Machida, Japan
| | - Mariko Tada
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo, Japan.,International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), The University of Tokyo, Bunkyo, Japan
| | - Takeshi Matsuo
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Fuchu, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Chuo, Japan
| | - Takeshi Saigusa
- Department of Integrative Physiology, Graduate School of Medicine, University of Yamanashi, Chuo, Japan
| | - Maho Ishida
- Department of Integrative Physiology, Graduate School of Medicine, University of Yamanashi, Chuo, Japan
| | - Tetsuo Mitsui
- Department of Integrative Physiology, Graduate School of Medicine, University of Yamanashi, Chuo, Japan.,Department of Social Environment, Graduate School of Environment and Disaster Research, Tokoha University, Suruga, Japan
| | - Hironori Kumano
- Department of Integrative Physiology, Graduate School of Medicine, University of Yamanashi, Chuo, Japan
| | - Kenji Kirihara
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo, Japan
| | - Takafumi Suzuki
- Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita, Japan
| | - Kenji Matsumoto
- Brain Science Institute, Tamagawa University, Machida, Japan
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Chuo, Japan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo, Japan.,International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study (UTIAS), The University of Tokyo, Bunkyo, Japan
| | - Takanori Uka
- Department of Integrative Physiology, Graduate School of Medicine, University of Yamanashi, Chuo, Japan.,Brain Science Institute, Tamagawa University, Machida, Japan
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16
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Hayashi T, Akikawa R, Kawasaki K, Egawa J, Minamimoto T, Kobayashi K, Kato S, Hori Y, Nagai Y, Iijima A, Someya T, Hasegawa I. Macaques Exhibit Implicit Gaze Bias Anticipating Others' False-Belief-Driven Actions via Medial Prefrontal Cortex. Cell Rep 2021; 30:4433-4444.e5. [PMID: 32234478 DOI: 10.1016/j.celrep.2020.03.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [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: 08/01/2019] [Revised: 12/23/2019] [Accepted: 03/05/2020] [Indexed: 02/08/2023] Open
Abstract
The ability to infer others' mental states is essential to social interactions. This ability, critically evaluated by testing whether one attributes false beliefs (FBs) to others, has been considered to be uniquely hominid and to accompany the activation of a distributed brain network. We challenge the taxon specificity of this ability and identify the causal brain locus by introducing an anticipatory-looking FB paradigm combined with chemogenetic neuronal manipulation in macaque monkeys. We find spontaneous gaze bias of macaques implicitly anticipating others' FB-driven actions. Silencing of the medial prefrontal neuronal activity with inhibitory designer receptor exclusively activated by designer drugs (DREADDs) specifically eliminates the implicit gaze bias while leaving the animals' visually guided and memory-guided tracking abilities intact. Thus, neuronal activity in the medial prefrontal cortex could have a causal role in FB-attribution-like behaviors in the primate lineage, emphasizing the importance of probing the neuronal mechanisms underlying theory of mind with relevant macaque animal models.
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Affiliation(s)
- Taketsugu Hayashi
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Department of Physiology, Niigata University School of Medicine, Niigata, Japan
| | - Ryota Akikawa
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan; Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan
| | - Jun Egawa
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takafumi Minamimoto
- Functional Brain Imaging, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Kazuto Kobayashi
- Department of Molecular Genetics, Institute of Biomedical Sciences, Fukushima Medical University, Fukushima, Japan
| | - Shigeki Kato
- Department of Molecular Genetics, Institute of Biomedical Sciences, Fukushima Medical University, Fukushima, Japan
| | - Yukiko Hori
- Functional Brain Imaging, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Yuji Nagai
- Functional Brain Imaging, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Atsuhiko Iijima
- Graduate School of Science and Technology, Niigata University, Niigata, Japan; School of Health Sciences, Faculty of Medicine, Niigata University, Niigata, Japan; Interdisciplinary Program of Biomedical Engineering, Assistive Technology, and Art and Sports Sciences, Faculty of Engineering, Niigata University. Niigata, Japan
| | - Toshiyuki Someya
- Department of Psychiatry, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan.
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17
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Kasedo R, Iijima A, Nakahara K, Adachi Y, Hasegawa I. Development of a Self-paced Sequential Letterstring Reading Task to Capture the Temporal Dynamics of Reading a Natural Language. ABE 2021. [DOI: 10.14326/abe.10.26] [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: 11/04/2022] Open
Affiliation(s)
- Ryutaro Kasedo
- Department of Bio-cybernetics, Graduate School of Science and Technology, Niigata University
- Department of Physiology, School of Medicine, Niigata University
| | - Atsuhiko Iijima
- Department of Bio-cybernetics, Graduate School of Science and Technology, Niigata University
- School of Health Sciences, Faculty of Medicine, Niigata University
| | | | - Yusuke Adachi
- Department of Physiology, School of Medicine, Niigata University
| | - Isao Hasegawa
- Department of Physiology, School of Medicine, Niigata University
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18
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Sakuta K, Mukai T, Hasegawa I, Okuno K, Tanaka T, Yaguchi H. External validation of the nag scale for predicting hematoma expansion in patients with acute intracerebral hemorrhage. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.472] [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: 10/25/2022]
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19
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Miyakawa N, Majima K, Sawahata H, Kawasaki K, Matsuo T, Kotake N, Suzuki T, Kamitani Y, Hasegawa I. Heterogeneous Redistribution of Facial Subcategory Information Within and Outside the Face-Selective Domain in Primate Inferior Temporal Cortex. Cereb Cortex 2019; 28:1416-1431. [PMID: 29329375 PMCID: PMC6093347 DOI: 10.1093/cercor/bhx342] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 10/29/2016] [Indexed: 11/13/2022] Open
Abstract
The inferior temporal cortex (ITC) contains neurons selective to multiple levels of visual categories. However, the mechanisms by which these neurons collectively construct hierarchical category percepts remain unclear. By comparing decoding accuracy with simultaneously acquired electrocorticogram (ECoG), local field potentials (LFPs), and multi-unit activity in the macaque ITC, we show that low-frequency LFPs/ECoG in the early evoked visual response phase contain sufficient coarse category (e.g., face) information, which is homogeneous and enhanced by spatial summation of up to several millimeters. Late-induced high-frequency LFPs additionally carry spike-coupled finer category (e.g., species, view, and identity of the face) information, which is heterogeneous and reduced by spatial summation. Face-encoding neural activity forms a cluster in similar cortical locations regardless of whether it is defined by early evoked low-frequency signals or late-induced high-gamma signals. By contrast, facial subcategory-encoding activity is distributed, not confined to the face cluster, and dynamically increases its heterogeneity from the early evoked to late-induced phases. These findings support a view that, in contrast to the homogeneous and static coarse category-encoding neural cluster, finer category-encoding clusters are heterogeneously distributed even outside their parent category cluster and dynamically increase heterogeneity along with the local cortical processing in the ITC.
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Affiliation(s)
- Naohisa Miyakawa
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8501, Japan.,Center for Transdisciplinary Research, Niigata University, Niigata 951-8501, Japan.,Department of Functional Brain Imaging Research, National Institutes of Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Kei Majima
- Department of Intelligence Science and Technology, Graduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan
| | - Hirohito Sawahata
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8501, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8501, Japan
| | - Takeshi Matsuo
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8501, Japan.,Department of Neurosurgery, School of Medicine, University of Tokyo, Bunkyo-ku 113-0033, Japan
| | - Naoki Kotake
- Department of Fisheries Distribution and Management, National Fisheries University, Shimonoseki 759-6595, Japan
| | - Takafumi Suzuki
- Center for Information and Neural Networks, National Institute of Information and Communications Technology, Suita 565-0871, Japan
| | - Yukiyasu Kamitani
- Department of Intelligence Science and Technology, Graduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan.,Department of Neuroinformatics, ATR Computational Neuroscience Laboratories, Keihanna Science City 619-0288, Japan
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8501, Japan.,Center for Transdisciplinary Research, Niigata University, Niigata 951-8501, Japan
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20
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Yoshimura A, Uchino J, Tanimura K, Chihara Y, Tamiya N, Kaneko Y, Takeda T, Hiranuma O, Hasegawa I, Kubota Y, Shiotsu S, Takumi C, Hiraoka N, Yamada T, Takayama K. An observational study of the epidermal growth factor receptor-tyrosine kinase inhibitor resistance mechanism in epidermal growth factor receptor gene mutation-positive non-small cell lung cancer. Medicine (Baltimore) 2018; 97:e12660. [PMID: 30290647 PMCID: PMC6200532 DOI: 10.1097/md.0000000000012660] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) mutation show a high response to EGFR-tyrosine kinase inhibitor (EGFR-TKI). Clinically, EGFR-positive NSCLC acquires several resistance mechanisms during EGFR-TKI treatment, such as the emergence of a secondary mutation (T790M), MET gene amplification, and transformation to small cell lung cancer. However, the mechanism of resistance to afatinib, a second-generation EGFR-TKI, remains unclear. In this study, we prospectively investigate the mechanism of resistance to afatinib using proteomic analyses.In total, 35 EGFR-positive NSCLC patients of both sexes and ≥20 years old will be included. NSCLC patients with major obstacles in major organs, such as bone marrow, heart, lung, liver, and kidney, will be excluded. Eligible patients will be administered afatinib or gefitinib until disease progression and proteomic analysis will be performed with biopsy samples before treatment and at disease progression.The primary outcome is to detect the potential predictive anomalies in proteins that can be candidates for the resistance factor of afatinib. The secondary outcome is to detect gene and protein abnormalities affecting progression-free survival, response rate, and rate of disease control in afatinib therapy.The protocol was approved by the institutional review boards of Kyoto Prefectural University of Medicine and all the participating hospitals. Written informed consent was obtained from all patients before registration, in accordance with the Declaration of Helsinki. The results of the study will be disseminated via publications in peer-reviewed journals.Trial registration number is UMIN000031013.
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Affiliation(s)
- Akihiro Yoshimura
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
| | - Junji Uchino
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
| | - Keiko Tanimura
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
| | - Yusuke Chihara
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
| | - Nobuyo Tamiya
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
| | - Yoshiko Kaneko
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
| | - Takayuki Takeda
- Department of Respiratory Medicine, Uji-Tokushukai Medical Center
| | | | - Isao Hasegawa
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital
| | - Yutaka Kubota
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daini Hospital
| | - Shinsuke Shiotsu
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Japan
| | - Chieko Takumi
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Japan
| | - Noriya Hiraoka
- Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
| | - Koichi Takayama
- Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine
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21
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Abstract
A phytochemical investigation of the inner bark of Tabebuia avellanedae Lorentz ex Griseb was carried out by various chromatographic techniques, resulting in the isolation and characterization of eight new iridoid esters, namely Avelladoids A-H (1-8). Their chemical structures were elucidated on the basis of extensive spectroscopic analyses, especially 2D NMR experiments and HRMS data. The anti-inflammatory effects of 1-8 were determined on an LPS-stimulated RAW 264.7 cell line. Among them, compounds 1, 2, and 3 exhibited anti-inflammatory activities by inhibition of NO and PGE2 production in a dose-dependent manner, without altering cell viability.
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Affiliation(s)
- Li Zhang
- College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City, Japan
| | - Isao Hasegawa
- College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City, Japan
| | - Tomihisa Ohta
- College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City, Japan
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22
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Nakahara K, Adachi K, Kawasaki K, Matsuo T, Sawahata H, Majima K, Takeda M, Sugiyama S, Nakata R, Iijima A, Tanigawa H, Suzuki T, Kamitani Y, Hasegawa I. Associative-memory representations emerge as shared spatial patterns of theta activity spanning the primate temporal cortex. Nat Commun 2016; 7:11827. [PMID: 27282247 PMCID: PMC4906394 DOI: 10.1038/ncomms11827] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 05/04/2016] [Indexed: 11/09/2022] Open
Abstract
Highly localized neuronal spikes in primate temporal cortex can encode associative memory; however, whether memory formation involves area-wide reorganization of ensemble activity, which often accompanies rhythmicity, or just local microcircuit-level plasticity, remains elusive. Using high-density electrocorticography, we capture local-field potentials spanning the monkey temporal lobes, and show that the visual pair-association (PA) memory is encoded in spatial patterns of theta activity in areas TE, 36, and, partially, in the parahippocampal cortex, but not in the entorhinal cortex. The theta patterns elicited by learned paired associates are distinct between pairs, but similar within pairs. This pattern similarity, emerging through novel PA learning, allows a machine-learning decoder trained on theta patterns elicited by a particular visual item to correctly predict the identity of those elicited by its paired associate. Our results suggest that the formation and sharing of widespread cortical theta patterns via learning-induced reorganization are involved in the mechanisms of associative memory representation.
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Affiliation(s)
- Kiyoshi Nakahara
- Center for Transdisciplinary Research, Niigata University, Niigata-city, Niigata 951-8501, Japan
| | - Ken Adachi
- Department of Bio-cybernetics, Faculty of Engineering, Niigata University, Niigata-city, Niigata 950-2181, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Niigata-city, Niigata 951-8501, Japan
| | - Takeshi Matsuo
- Department of Neurosurgery, NTT Medical Center Tokyo, Shinagawa-ku, Tokyo 141-8625, Japan
| | - Hirohito Sawahata
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi-city, Aichi 441-8580, Japan
| | - Kei Majima
- ATR Computational Neuroscience Laboratories, Keihanna Science City, Kyoto 619-0288, Japan
| | - Masaki Takeda
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Sayaka Sugiyama
- Lab of Neuronal Development, Graduate School of Medical and Dental Sciences, Niigata University, Niigata-city, Niigata 951-8501, Japan
| | - Ryota Nakata
- Department of Bio-cybernetics, Faculty of Engineering, Niigata University, Niigata-city, Niigata 950-2181, Japan
| | - Atsuhiko Iijima
- Department of Bio-cybernetics, Faculty of Engineering, Niigata University, Niigata-city, Niigata 950-2181, Japan
| | - Hisashi Tanigawa
- Center for Transdisciplinary Research, Niigata University, Niigata-city, Niigata 951-8501, Japan
| | - Takafumi Suzuki
- Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology, and Osaka University, Suita-city, Osaka 565-0871, Japan
| | - Yukiyasu Kamitani
- ATR Computational Neuroscience Laboratories, Keihanna Science City, Kyoto 619-0288, Japan
- Graduate School of Informatics, Kyoto University, Kyoto-city, Kyoto 606-8501, Japan
| | - Isao Hasegawa
- Center for Transdisciplinary Research, Niigata University, Niigata-city, Niigata 951-8501, Japan
- Department of Physiology, Niigata University School of Medicine, Niigata-city, Niigata 951-8501, Japan
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23
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Aizawa Y, Watanabe K, Oishi T, Hirano H, Hasegawa I, Saitoh A. Role of Maternal Antibodies in Infants with Severe Diseases Related to Human Parechovirus Type 3. Emerg Infect Dis 2016; 21:1966-72. [PMID: 26485714 PMCID: PMC4622238 DOI: 10.3201/eid2111.150267] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Maternal antibodies may protect infants from severe illness caused by this pathogen. Human parechovirus type 3 (HPeV3) is an emerging pathogen that causes sepsis and meningoencephalitis in young infants. To test the hypothesis that maternal antibodies can protect this population, we measured neutralizing antibody titers (NATs) to HPeV3 and other genotypes (HPeV1 and HPeV6) in 175 cord blood samples in Japan. The seropositivity rate (>1:32) for HPeV3 was 61%, similar to that for the other genotypes, but decreased significantly as maternal age increased (p<0.001). Furthermore, during the 2014 HPeV3 epidemic, prospective measurement of NATs to HPeV3 in 45 patients with severe diseases caused by HPeV3 infection showed low NATs (<1:16) at onset and persistently high NATs (>1:512) until age 6 months. All intravenous immunoglobulin samples tested elicited high NATs to HPeV3. Our findings indicate that maternal antibodies to HPeV3 may help protect young infants from severe diseases related to HPeV3 and that antibody supplementation may benefit these patients.
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24
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Zhang L, Hasegawa I, Ohta T. Anti-inflammatory cyclopentene derivatives from the inner bark of Tabebuia avellanedae. Fitoterapia 2016; 109:217-23. [PMID: 26779946 DOI: 10.1016/j.fitote.2016.01.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 11/24/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 01/19/2023]
Abstract
Six new cyclopentenyl esters, avellaneine A-F (1-4, 7, 8), two new cyclopentyl esters, avellaneine G, H (9, 10), along with two known cyclopentenyl esters were obtained from water extract of the inner bark of Tabebuia avellanedae Lorentz ex Griseb. The chemical structures of the new compounds were elucidated by spectroscopic techniques. The anti-inflammatory effects of these compounds were determined on LPS-stimulated RAW 264.7 cell line. Some of the tested compounds (2, 3, 4, 6, 7) reduced the NO production in a dose-dependent manner, while 6 and 7 decreased PGE2 production in a dose-dependent manner, without altering cell viability. Data presented in this research indicated that Tabebuia avellanedae's ethnopharmacological action of treating inflammatory diseases was based on the constituents which exert a significant anti-inflammatory effect on inflammatory responses.
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Affiliation(s)
- Li Zhang
- Laboratory of Environmental and Health Science, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan; Henan University of Traditional Chinese Medicine, No. 1 Jinshui Road, Zhengzhou, Henan 450008, China.
| | - Isao Hasegawa
- Laboratory of Environmental and Health Science, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
| | - Tomihisa Ohta
- Laboratory of Environmental and Health Science, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan.
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25
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Suzuki T, Ando H, Yoshida T, Sawahata H, Kawasaki K, Hasegawa I, Matsushita K, Hirata M, Yoshimine T, Takizawa K. Super multi-channel recording systems with UWB wireless transmitter for BMI. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:5208-11. [PMID: 25571167 DOI: 10.1109/embc.2014.6944799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In order to realize a low-invasive and high accuracy Brain-Machine Interface (BMI) system for clinical applications, a super multi-channel recording system was developed in which 4096 channels of Electrocorticogram (ECoG) signal can be amplified and transmitted to outside the body by using an Ultra Wide Band (UWB) wireless system. Also, a high density, flexible electrode array made by using a Parylene-C substrate was developed that is composed of units of 32-ch recording arrays. We have succeeded in an evaluation test of UWB wireless transmitting using a body phantom system.
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26
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Muranaka Y, Suzuki T, Hasegawa I, Mae K. Saccharification of Lignocellulosic Biomass under Mild Condition Using Ionic Liquid. J Chem Eng Japan / JCEJ 2015. [DOI: 10.1252/jcej.14we363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Isao Hasegawa
- Department of Chemical Engineering, Kyoto University
| | - Kazuhiro Mae
- Department of Chemical Engineering, Kyoto University
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27
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Aizawa Y, Watanabe K, Oishi T, Hirano H, Hasegawa I, Saitoh A. 993Role of Maternal Antibodies in Human Parechovirus Type 3 Infection in Young Infants. Open Forum Infect Dis 2014. [PMCID: PMC5781779 DOI: 10.1093/ofid/ofu052.701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- Yuta Aizawa
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kanako Watanabe
- Niigata University Graduate School of Health Sciences, Niigata, Japan
| | - Tomohiro Oishi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | | | | | - Akihiko Saitoh
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
- University of California, San Diego, La Jolla, CA
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28
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Kambayashi T, Tottori H, Hasegawa I, Nakatsukasa H, Tsushima H, Nozaki A. [Examination of a relapsing pattern of cases of completely resected non-small cell lung cancer]. Gan To Kagaku Ryoho 2014; 41:971-974. [PMID: 25132028] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
PURPOSE The purpose of this research was to understand the clinical discovery of a relapse, relapse time, and the presentation of the first relapse of non-small cell lung cancer(NSCLC)by examining cases of relapse after complete resection of NSCLC. Objective and method. Cases of relapse after complete resection of NSCLC in our hospital were examined. RESULTS Fifteen cases were evaluated. In half of these cases, relapse was discovered owing to increased tumor marker values. Of the patients, 60%had a relapse within 2 years after resection and 20%had a relapse 5 years after resection. The first relapse was a local recurrence in 9 cases, lung metastasis in 5 cases, and distant metastasis outside the thoracic cavity in 3 cases. CONCLUSION The effectiveness of the tumor marker as a diagnostic parameter of relapse in NSCLC was demonstrated. Discovering distant metastases at the early postoperative period and relapse 5 years after resection are important.
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Kambayashi T, Tottori H, Hasegawa I, Nakatsukasa H, Tsushima H. [Computed tomography (CT) assessment of the postoperative change of pericardial fat pad used in pulmonary surgery]. Kyobu Geka 2014; 67:789-792. [PMID: 25135404] [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: 06/03/2023]
Abstract
The purpose of this study is to clarify the postoperative change of pericardial fat pad used in pulmonary resection to reinforce bronchial suture or bronchial stump. 5 cases who received chest computed tomography (CT) examination 2 times or more after the operation (once within one week after the operation) were enrolled. For evaluation, scoring system from 1 to 4 according to the percentage of remaining pericardial fat pad was applied(1 point: 0∼19%, 2 point: 20∼49%, 3 point: 50∼79%, 4 point: 80∼100%). At 1 to 2 months after the operation, almost all cases were 3 or 4 point. However, the scores declined to 1 or 2 point 5 months after the operation in almost all cases. It is likely that the pericardial fat pad remains to be effective in protecting bronchial stump or anastomosis 1 to 2 months after the operation.
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Muranaka Y, Suzuki T, Sawanishi H, Hasegawa I, Mae K. Effective Production of Levulinic Acid from Biomass through Pretreatment Using Phosphoric Acid, Hydrochloric Acid, or Ionic Liquid. Ind Eng Chem Res 2014. [DOI: 10.1021/ie501811x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yosuke Muranaka
- Department
of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tatsuya Suzuki
- Department
of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroyuki Sawanishi
- Department
of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Isao Hasegawa
- Department
of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuhiro Mae
- Department
of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Matsuo T, Kawai K, Uno T, Kunii N, Miyakawa N, Usami K, Kawasaki K, Hasegawa I, Saito N. Simultaneous Recording of Single-Neuron Activities and Broad-Area Intracranial Electroencephalography: Electrode Design and Implantation Procedure. Oper Neurosurg (Hagerstown) 2013; 73:ons146-54. [DOI: 10.1227/01.neu.0000430327.48387.e1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Abstract
BACKGROUND:
There has been growing interest in clinical single-neuron recording to better understand epileptogenicity and brain function. It is crucial to compare this new information, single-neuronal activity, with that obtained from conventional intracranial electroencephalography during simultaneous recording. However, it is difficult to implant microwires and subdural electrodes during a single surgical operation because the stereotactic frame hampers flexible craniotomy.
OBJECTIVE:
To describe newly designed electrodes and surgical techniques for implanting them with subdural electrodes that enable simultaneous recording from hippocampal neurons and broad areas of the cortical surface.
METHODS:
We designed a depth electrode that does not protrude into the dura and pulsates naturally with the brain. The length and tract of the depth electrode were determined preoperatively between the lateral subiculum and the lateral surface of the temporal lobe. A frameless navigation system was used to insert the depth electrode. Surface grids and ventral strips were placed before and after the insertion of the depth electrodes, respectively. Finally, a microwire bundle was inserted into the lumen of the depth electrode. We evaluated the precision of implantation, the recording stability, and the recording rate with microwire electrodes.
RESULTS:
Depth-microwire electrodes were placed with a precision of 3.6 mm. The mean successful recording rate of single- or multiple-unit activity was 14.8%, which was maintained throughout the entire recording period.
CONCLUSION:
We achieved simultaneous implantation of microwires, depth electrodes, and broad-area subdural electrodes. Our method enabled simultaneous and stable recording of hippocampal single-neuron activities and multichannel intracranial electroencephalography.
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Affiliation(s)
- Takeshi Matsuo
- Department of Neurosurgery, University of Tokyo Graduate School of Medicine, Tokyo, Japan
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan
| | - Kensuke Kawai
- Department of Neurosurgery, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Takeshi Uno
- Department of Neurosurgery, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Naoto Kunii
- Department of Neurosurgery, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Naohisa Miyakawa
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan
- Department of Ultrastructual Research, National Institute of Neuroscience, Kodaira, Japan
| | - Kenichi Usami
- Department of Neurosurgery, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan
- Center for Transdisciplinary Research, Niigata University, Niigata, Japan
| | - Nobuhito Saito
- Department of Neurosurgery, University of Tokyo Graduate School of Medicine, Tokyo, Japan
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Matsuo T, Kawasaki K, Kawai K, Majima K, Masuda H, Murakami H, Kunii N, Kamitani Y, Kameyama S, Saito N, Hasegawa I. Alternating zones selective to faces and written words in the human ventral occipitotemporal cortex. ACTA ACUST UNITED AC 2013; 25:1265-77. [PMID: 24285843 DOI: 10.1093/cercor/bht319] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Recognition of faces and written words is associated with category-specific brain activation in the ventral occipitotemporal cortex (vOT). However, topological and functional relationships between face-selective and word-selective vOT regions remain unclear. In this study, we collected data from patients with intractable epilepsy who underwent high-density recording of surface field potentials in the vOT. "Faces" and "letterstrings" induced outstanding category-selective responses among the 24 visual categories tested, particularly in high-γ band powers. Strikingly, within-hemispheric analysis revealed alternation of face-selective and letterstring-selective zones within the vOT. Two distinct face-selective zones located anterior and posterior portions of the mid-fusiform sulcus whereas letterstring-selective zones alternated between and outside of these 2 face-selective zones. Further, a classification analysis indicated that activity patterns of these zones mostly represent dedicated categories. Functional connectivity analysis using Granger causality indicated asymmetrically directed causal influences from face-selective to letterstring-selective regions. These results challenge the prevailing view that different categories are represented in distinct contiguous regions in the vOT.
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Affiliation(s)
- Takeshi Matsuo
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8510, Japan Department of Neurosurgery, The University of Tokyo Graduate School of Medicine, Tokyo 113-8655, Japan
| | - Keisuke Kawasaki
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8510, Japan
| | - Kensuke Kawai
- Department of Neurosurgery, The University of Tokyo Graduate School of Medicine, Tokyo 113-8655, Japan
| | - Kei Majima
- ATR Computational Neuroscience Laboratories, Kyoto 619-0288, Japan Graduate School of Information Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Hiroshi Masuda
- Department of Neurosurgery, Nishi-Niigata Chuo National Hospital, Niigata 950-2085, Japan
| | - Hiroatsu Murakami
- Department of Neurosurgery, Nishi-Niigata Chuo National Hospital, Niigata 950-2085, Japan
| | - Naoto Kunii
- Department of Neurosurgery, The University of Tokyo Graduate School of Medicine, Tokyo 113-8655, Japan
| | - Yukiyasu Kamitani
- ATR Computational Neuroscience Laboratories, Kyoto 619-0288, Japan Graduate School of Information Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Shigeki Kameyama
- Department of Neurosurgery, Nishi-Niigata Chuo National Hospital, Niigata 950-2085, Japan
| | - Nobuhito Saito
- Department of Neurosurgery, The University of Tokyo Graduate School of Medicine, Tokyo 113-8655, Japan
| | - Isao Hasegawa
- Department of Physiology, Niigata University School of Medicine, Niigata 951-8510, Japan Center for Transdisciplinary Research, Niigata University, Niigata 951-8510, Japan
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Hasegawa I, Asukai K, Ohno T. A Case Report; TS-1 and Docetaxcel Combination Therapy Result in the Good Outcome for Advanced Stomach Cancer Patient. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.64] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kambayashi T, Tottori H, Hasegawa I, Nakatsukasa H, Tsushima H. [Pulmonary resection for lung cancer in a patient with an anomalous course of the right apical pulmonary vein]. Kyobu Geka 2013; 66:915-918. [PMID: 24008644] [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: 06/02/2023]
Abstract
We carried out right upper lobectomy and mediastinal node dissection for a 67-year-old man with lung adenocaricinoma in the right upper lobe. Intraoperatively, we found the middle lobe vein, V2, and V3 in front of the pulmonary hilum, and did not found a part of the right apical pulmonary vein. We found a part of the right apical pulmonary vein placed between the right main pulmonary artery and the right upper lobe bronchus, after cutting the pulmonary artery branches to the right upper lobe. We should keep on mind the possibility of anomalous course of pulmonary vein when pulmonary surgery is planned. And, if this abnormality is doubted with the preoperative chest computed tomogrphy (CT) scan, threedimensional CT( 3D-CT) scan of the pulmonary vein is useful.
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Miyakawa N, Hasegawa I. [Representation and readout of object information in macaque higher visual cortex]. Brain Nerve 2013; 65:643-650. [PMID: 23735526] [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: 06/02/2023]
Abstract
Electrocorticogram (ECoG) is an electrophysiological brain activity recording technique that has been widely revisited in recent years, not only for clinical monitoring, but also for prosthetic applications. However, the extent and limitations of the technique are poorly understood. Higher areas of human and macaque ventral visual cortices are known to have functional domain structures that are selective to certain categories, and population vectors that have been derived from visually evoked single-unit activity (SUA) recording in this region have been shown to form category clusters. How can visually evoked potentials recorded with ECoG from the same region be exploited to extract category information? To answer this question, the development of a simultaneous ECoG and SUA recording device by the modification of a previously reported flexible mesh ECoG probe with a microelectromechanical system has been promising (Toda et al., 2011). Indeed, Toda et al. conducted simultaneous recordings and reported that mesh ECoG signals exhibited comparable or better signal variabilities compared to conventional methods in the rat visual cortex. With this approach, we conducted intensive simultaneous ECoG and SUA recordings from the macaque anterior inferior temporal (IT) cortex. We compared how basic visual category and fine information is decoded from different recording modalities. Our preliminary results indicated that ECoG signals from the IT cortex may be a useful source for reading out certain levels of category information from visual input.
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Affiliation(s)
- Naohisa Miyakawa
- Department of Ultrastructural Research, National Institute of Neuroscience, National Center for Psychiatry and Neurology, Japan
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36
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Zhao XQ, Guo SW, Shinmachi F, Sunairi M, Noguchi A, Hasegawa I, Shen RF. Aluminium tolerance in rice is antagonistic with nitrate preference and synergistic with ammonium preference. Ann Bot 2013; 111:69-77. [PMID: 23118122 PMCID: PMC3523647 DOI: 10.1093/aob/mcs234] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
BACKGROUND AND AIMS Acidic soils are dominated chemically by more ammonium and more available, so more potentially toxic, aluminium compared with neutral to calcareous soils, which are characterized by more nitrate and less available, so less toxic, aluminium. However, it is not known whether aluminium tolerance and nitrogen source preference are linked in plants. METHODS This question was investigated by comparing the responses of 30 rice (Oryza sativa) varieties (15 subsp. japonica cultivars and 15 subsp. indica cultivars) to aluminium, various ammonium/nitrate ratios and their combinations under acidic solution conditions. KEY RESULTS indica rice plants were generally found to be aluminium-sensitive and nitrate-preferring, while japonica cultivars were aluminium-tolerant and relatively ammonium-preferring. Aluminium tolerance of different rice varieties was significantly negatively correlated with their nitrate preference. Furthermore, aluminium enhanced ammonium-fed rice growth but inhibited nitrate-fed rice growth. CONCLUSIONS The results suggest that aluminium tolerance in rice is antagonistic with nitrate preference and synergistic with ammonium preference under acidic solution conditions. A schematic diagram summarizing the interactions of aluminium and nitrogen in soil-plant ecosystems is presented and provides a new basis for the integrated management of acidic soils.
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Affiliation(s)
- Xue Qiang Zhao
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Shi Wei Guo
- Institute of Foods Crop, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | | | | | - Akira Noguchi
- Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Isao Hasegawa
- Department of Chemistry and Life Science, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Ren Fang Shen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- For correspondence. E-mail
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Zeng QL, Chen RF, Zhao XQ, Shen RF, Noguchi A, Shinmachi F, Hasegawa I. Aluminum could be transported via phloem in Camellia oleifera Abel. Tree Physiol 2013; 33:96-105. [PMID: 23192975 DOI: 10.1093/treephys/tps117] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Aluminum (Al) accumulation and long-distance transport in oil tea (Camellia oleifera Abel.), known to be an Al accumulator, was investigated. The average Al concentration in the embryo of oil tea seeds was 389 mg Al kg(-1) dry weight, which was higher than seeds of other Al accumulators. By partially suppressing leaf transpiration in the field, Al accumulation in leaves was depressed, which clarified the importance of xylem transport to Al accumulation in leaves. However, the effects of xylem transport alone could not sufficiently explain the high Al accumulation in the seasons when the leaf transpiration is weak, which hints the necessity of phloem transport working. Aluminum content in phloem exudates of barks provides another evidence of phloem transport. Images from scanning electron microscopy and energy-dispersive analysis also showed that Al was present in the phloem of oil tea petioles. Aluminum in oil tea could also be redistributed: higher concentrations of Al were found in leaves when Al was supplied to a different leaf of the same plant. In addition, Al was present in newly emerging roots of oil tea seedlings in which all original roots were excised prior to treatment, and a positive correlation existed between Al content in the newly formed roots and that in the leaves. The results using the empty seed coat technique showed that Al unloading via the phloem occurred during seed development. In conclusion, the results demonstrated that Al could be redistributed between leaves, from seeds to leaves, leaves to roots and leaves to seeds, which indicates that Al can be transported via the phloem in oil tea.
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Affiliation(s)
- Qi Long Zeng
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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Osawa M, Inaoka Y, Hasegawa I, Satoh F. Postmortem molecular analysis to SIDS victims. Forensic Science International: Genetics Supplement Series 2011. [DOI: 10.1016/j.fsigss.2011.08.128] [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: 10/16/2022]
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39
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Osada T, Molcard AJ, Matsuo T, Kawasaki K, Adachi Y, Miyamoto K, Watanabe T, Hasegawa I, Miyashita Y. Intrasulcal ECoG approach to cortico-cortical connectivity using electrical stimulation-induced evoked potentials in macaques. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.415] [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: 10/17/2022]
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40
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Iijima A, Hatano Y, Fujisawa N, Hasegawa I. Composition of double-articulated symbols for categorizing objects in macaque monkeys. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.1710] [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: 10/17/2022]
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41
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Toda H, Sawahata H, Suzuki T, Kotake N, Horie M, Hasegawa I. Electrocorticographically distinguished multiple visual/auditory areas in rat temporal cortex with MEMS-based flexible electrode-meshes. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.881] [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: 11/26/2022]
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42
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Kawasaki K, Matsuo T, Osada T, Sawahata H, Suzuki T, Shibata M, Miyakawa N, Nakahara K, Sato N, Kawai K, Saito N, Hasegawa I. Intrasulcal electrocorticography in macaque monkeys. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.1812] [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: 10/17/2022]
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43
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Sakatani T, Watanabe H, Nishimura Y, Nambu A, Hasegawa I, Suzuki T, Sato MA, Kawato M, Isa T. Estimation of the intracortical LFPs from microECoGs based on spontaneous neuronal activities. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.877] [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: 11/17/2022]
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Masamizu Y, Okada T, Kawasaki K, Ishibashi H, Yuasa S, Takeda S, Hasegawa I, Nakahara K. Local and retrograde gene transfer into primate neuronal pathways via adeno-associated virus serotype 8 and 9. Neuroscience 2011; 193:249-58. [PMID: 21782903 DOI: 10.1016/j.neuroscience.2011.06.080] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [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: 02/06/2011] [Revised: 06/28/2011] [Accepted: 06/28/2011] [Indexed: 11/17/2022]
Abstract
Viral vector-mediated gene transfer has become increasingly valuable for primate brain research, in particular for application of genetic methods (e.g. optogenetics) to study neuronal circuit functions. Neuronal cell tropisms and infection patterns are viable options for obtaining viral vector-mediated transgene delivery that is selective for particular neuronal pathways. For example, several types of viral vectors can infect axon terminals (retrograde infections), which enables targeted transgene delivery to neurons that directly project to a particular viral injection region. Although recent studies in rodents have demonstrated that adeno-associated virus serotype 8 (AAV8) and 9 (AAV9) efficiently transduce neurons, the tropisms and infection patterns remain poorly understood in primate brains. Here, we constructed recombinant AAV8 or AAV9, which expressed an enhanced green fluorescent protein (EGFP) gene driven by a ubiquitous promoter (AAV8-EGFP and AAV9-EGFP, respectively), and stereotaxically injected it into several brain regions in marmosets and macaque monkeys. Immunohistochemical analyses revealed almost exclusive colocalization of EGFP fluorescence via AAV9-mediated gene transfer with a neuron-specific marker, indicating endogenous neuronal tropism of AAV9, which was consistent with our previous results utilizing AAV8. Injections of either AAV8-EGFP or AAV9-EGFP into the marmoset striatum resulted in EGFP expression in local striatal neurons as a result of local infection, as well as expression in dopaminergic neurons of the substantia nigra via retrograde transport along nigrostriatal axonal projections. Retrograde infections were also observed in the frontal cortex and thalamus, which are known to have direct projections to the striatum. These local and retrograde gene transfers were further demonstrated in the geniculocortical pathway of the marmoset visual system. These findings indicate promising capabilities of AAV8 and AAV9 to deliver molecular tools into a range of primate neural systems in pathway-specific manners through their neuronal tropisms and infection patterns.
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Affiliation(s)
- Y Masamizu
- Department of Neurophysiology, National Institute of Neuroscience, NCNP, 4-1-1 Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan
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Matsuo T, Kawasaki K, Osada T, Sawahata H, Suzuki T, Shibata M, Miyakawa N, Nakahara K, Iijima A, Sato N, Kawai K, Saito N, Hasegawa I. Intrasulcal electrocorticography in macaque monkeys with minimally invasive neurosurgical protocols. Front Syst Neurosci 2011; 5:34. [PMID: 21647392 PMCID: PMC3103840 DOI: 10.3389/fnsys.2011.00034] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [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: 04/19/2011] [Accepted: 05/12/2011] [Indexed: 11/13/2022] Open
Abstract
Electrocorticography (ECoG), multichannel brain-surface recording and stimulation with probe electrode arrays, has become a potent methodology not only for clinical neurosurgery but also for basic neuroscience using animal models. The highly evolved primate's brain has deep cerebral sulci, and both gyral and intrasulcal cortical regions have been implicated in important functional processes. However, direct experimental access is typically limited to gyral regions, since placing probes into sulci is difficult without damaging the surrounding tissues. Here we describe a novel methodology for intrasulcal ECoG in macaque monkeys. We designed and fabricated ultra-thin flexible probes for macaques with micro-electro-mechanical systems technology. We developed minimally invasive operative protocols to implant the probes by introducing cutting-edge devices for human neurosurgery. To evaluate the feasibility of intrasulcal ECoG, we conducted electrophysiological recording and stimulation experiments. First, we inserted parts of the Parylene-C-based probe into the superior temporal sulcus to compare visually evoked ECoG responses from the ventral bank of the sulcus with those from the surface of the inferior temporal cortex. Analyses of power spectral density and signal-to-noise ratio revealed that the quality of the ECoG signal was comparable inside and outside of the sulcus. Histological examination revealed no obvious physical damage in the implanted areas. Second, we placed a modified silicone ECoG probe into the central sulcus and also on the surface of the precentral gyrus for stimulation. Thresholds for muscle twitching were significantly lower during intrasulcal stimulation compared to gyral stimulation. These results demonstrate the feasibility of intrasulcal ECoG in macaques. The novel methodology proposed here opens up a new frontier in neuroscience research, enabling the direct measurement and manipulation of electrical activity in the whole brain.
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Affiliation(s)
- Takeshi Matsuo
- Department of Physiology, Niigata University School of Medicine Niigata, Japan
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Hasegawa I, Ishida M, Motojima S, Satokawa S. Organic-Silica Hybrid Materials Consisting of the Double
Four-Ring Silicate Structure as a Building Block. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-346-163] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTCopolymerization of the cubic octameric silicate anion
(Si8O208-) with dimethyldichlorosilane in 2, 2-dimethoxypropane has
yielded organic-silica hybrid materials consisting of the S13O20 structure
as a building block. The hybrid materials have shown high surface area by
calcination in air. The reaction conditions have been optimized to produce
the materials with higher specific surface area. As a result, the hybrid
materials with BET surface area of 406 m2 g-1 have
been obtained.
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Toda H, Suzuki T, Sawahata H, Majima K, Kamitani Y, Hasegawa I. Simultaneous recording of ECoG and intracortical neuronal activity using a flexible multichannel electrode-mesh in visual cortex. Neuroimage 2011; 54:203-12. [DOI: 10.1016/j.neuroimage.2010.08.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 07/28/2010] [Accepted: 08/03/2010] [Indexed: 10/19/2022] Open
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Karibe H, Arakawa R, Tateno A, Mizumura S, Okada T, Ishii T, Oshima K, Ohtsu M, Hasegawa I, Okubo Y. Regional cerebral blood flow in patients with orally localized somatoform pain disorder: a single photon emission computed tomography study. Psychiatry Clin Neurosci 2010; 64:476-82. [PMID: 20727111 DOI: 10.1111/j.1440-1819.2010.02119.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM Somatoform pain disorder is characterized by persistent and chronic pain at one or more sites without an associated general medical condition and in which psychological factors are thought to play a role. This study aimed to investigate the pathological features of somatoform pain disorder localized to the oral region by single photon emission computed tomography (SPECT). METHODS Ten patients (nine females and one male; average age 55.0 ± 14.4 years) having somatoform pain disorder with oral symptoms participated. SPECT was performed using N-isopropyl-4-[(123) I] iodoamphetamine intravenous injections, and regional cerebral blood flow (rCBF) was assessed by three-dimensional stereotactic surface projections. We also selected 12 healthy individuals (seven females and five males; average age 61.8 ± 13.2 years) to act as controls. RESULTS Both the patient and control groups showed no atrophy or infarction on CT or magnetic resonance imaging. The patient group showed higher rCBF in the subcortical area, especially in the thalamus and cingulate gyri, than the control group. In contrast, the patient group showed lower rCBF in the bilateral frontal and occipital lobes as well as in the left temporal lobe. CONCLUSIONS These results suggest that the biological process involved in somatoform pain disorder of the oral region is characterized by changes in limbic and cortical functions. The finding that somatoform pain disorder with oral symptoms is associated with brain functional changes will help to develop treatment regimes for this disorder and clarify the underlying pathology.
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Affiliation(s)
- Hiroyuki Karibe
- Department of Pediatric Dentistry, School of Life Dentistry, Nippon Dental University, Tokyo, Japan.
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Yamaguchi M, Hasegawa I, Yahagi N, Ishigaki Y, Takano F, Ohta T. Carotenoids modulate cytokine production in Peyer's patch cells ex vivo. J Agric Food Chem 2010; 58:8566-8572. [PMID: 20681644 DOI: 10.1021/jf101295y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study investigated the effects of carotenoid and capsaicin constituents of Capsicum on intestinal immune responses in mice. Peyer's patch (PP) cells were isolated from mice orally administered with capsaicin, or one of three carotenoids (beta-carotene, beta-cryptoxanthin, or lycopene), at 5 mg/kg/day for 7 consecutive days. Collagenase-separated PP cells were then cultured in the presence or absence of concanavalin A (Con A). PP cells from mice treated with capsaicin, beta-carotene, or beta-cryptoxanthin all showed significantly enhanced interleukin (IL)-2 and interferon (IFN)-gamma production when costimulated with 5 microg/mL Con A, with capsaicin having the greatest effect (approximately two times greater than in normal mice). No increase in the production of IL-2 or IL-4 was observed when PP cells from mice were cultured without Con A. We further tested the combined efficacy of carotenoids and capsaicin on intestinal T-cell cytokine production. Oral administration of capsaicin with beta-carotene, both at 5 mg/kg/day for 7 days, increased IFN-gamma and IL-2 production in cultured PP cells costimulated with Con A. In contrast, oral administration of beta-cryptoxanthin counteracted the stimulatory effect of capsaicin treatment on T-helper cytokine production. Flow cytometric analysis revealed that the population of IFN-gamma(+) and IL-4(+) cells in PPs from mice administered capsaicin and/or carotenoids did not change, which suggested that the effects of carotenoids and capsaicin on cytokine production were not due to changes in the lymphoid population in PPs. These results indicate that carotenoids and capsaicin, which are common components of foods such as Capsicum, mutually modulate T-cell immune responses to exogenous or endogenous inducers such as antigens in PPs, without changing the lymphoid population. Carotenoids modulate the potentiality of cytokine production in T cells or indirectly activate T cells but have no triggering effect such as Con A.
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Affiliation(s)
- Masaya Yamaguchi
- Pharmacognosy and Chemistry of Natural Products, School of Pharmacy and Pharmaceutical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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Chaiwat W, Hasegawa I, Mae K. Alternative Reforming Methods of Primary Tar Released from Gas Treatment of Biomass at Low Temperature for Development of Pyrolysis/Gasification Process. Ind Eng Chem Res 2010. [DOI: 10.1021/ie901695r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weerawut Chaiwat
- Department of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Isao Hasegawa
- Department of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kazuhiro Mae
- Department of Chemical Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
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