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YOKOTE S, Ueda H, Shimizu A, Okabe M, Haruhara K, Sasaki T, Tsuboi N, Yokoo T. WCN23-1022 Persistent microscopic hematuria in IgA nephropathy and frequency of gross hematuria following SARS-CoV-2 mRNA vaccination. Kidney Int Rep 2023. [PMCID: PMC10025605 DOI: 10.1016/j.ekir.2023.02.991] [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: 03/22/2023] Open
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Hamada K, Kitamoto H, Okabe M, Honzawa Y, Yamamoto S. Gastrointestinal: Lupus mesenteric vasculitis of the colon diagnosed using endoscopic biopsy. J Gastroenterol Hepatol 2021; 36:2034. [PMID: 33506512 DOI: 10.1111/jgh.15407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 01/12/2021] [Indexed: 12/09/2022]
Affiliation(s)
- K Hamada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Kitamoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Okabe
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Y Honzawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Yamamoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Yokota M, Morikawa A, Nagahisa Y, Okabe M, Kitagawa H, Kawamoto K. Combined use of curved scissors and the soft coagulation system in robot-assisted lateral lymph node dissection for rectal cancer - a video vignette. Colorectal Dis 2020; 22:2359-2360. [PMID: 32954615 DOI: 10.1111/codi.15371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/08/2020] [Indexed: 01/24/2023]
Affiliation(s)
- M Yokota
- Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - A Morikawa
- Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - Y Nagahisa
- Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - M Okabe
- Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - H Kitagawa
- Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan
| | - K Kawamoto
- Department of General Surgery, Kurashiki Central Hospital, Kurashiki, Japan
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Sato T, Taya Y, Ikeda Y, Fujita S, Takahashi M, Okabe M, Aizawa Y. P5636Lipid core burden index is associated with microcirculatory dysfunction even in stable angina pectoris; Insights from intracoronary electrocardiography. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0579] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Combined near-infrared spectroscopy (NIRS) and intravascular ultrasonography (NIRS-IVSU) is an imaging modality for precise detection of lipid core burden. Distal embolization has been reported to be a mechanism of microcirculatory dysfunction (MD) caused by percutaneous coronary intervention (PCI). High lipid core burden index at the 4-mm maximal segment (max-LCBI(4)) has been associated with the cardiovascular event. A max-LCBI(4) of >500 was related to perioperative myocardial infarction even in patients with stable angina pectoris. Unlike 12-lead electrocardiography, intracoronary electrocardiography can detect slight ischemia during PCI, maybe indicating distal embolization. However, whether PCI for culprit plaques with a low max-LCBI(4) can cause MD is unclear. Thus, this study aimed to investigate whether plaques with low max-LCBI(4) influence MD, using intracoronary electrocardiography.
Methods
Forty consecutive patients who underwent PCI for stable angina pectoris due to stenosis of the proximal segment of the left anterior descending artery were enrolled. NIRS-IVUS was performed in all the patients before predilatation to evaluate for the culprit lesion. Total LCBI and max-LCBI(4) within the culprit lesion were measured. On gray-scale IVUS, vessel area, lumen area, plaque volume, and percent (%) plaque volume were measured. Intracoronary electrography was performed at stent implantation to measure the time from the initiation of S-T segment elevation from the isoelectric baseline to the return of S-T segment to the isoelectric baseline after the deflation of the stent balloon, which was defined as the severity of the MD. The patients were divided into 2 groups according to median max-LCBI(4) (high [n=20] and low LCBI groups [n=20]).
Results
The mean age was 72±6 years. Of the patients, 80% were male. The mean overall max-LCBI(4) was 140±100. Max-LCBI(4) was significantly higher in the high-LCBI(4) group than in the low-LCBI(4) group. No significant differences in age, body mass index, American College of Cardiology and American Heart Association classification, and low-density lipoprotein level were found between the groups, as well as in the gray-scale IVUS parameters such as %plaque volume. The mean time from the initiation of the initiation of S-T segment elevation from the isoelectric baseline to the return of S-T segment to the isoelectric baseline was significantly longer in the high LCBI group than in the low LCBI group (33 vs 12 sec, P=0.01) despite no change in the S-T segment on 12-lead electrography. The S-T segment elevation occurred only during stent balloon inflation and returned to the isoelectric baseline immediately after stent balloon deflation at a max-LCBI(4) of 0. The no-reflow and slow flow phenomena were not observed.
Conclusion
Even low max-LCBI(4) on NIRS-IVUS was associated with MD during PCI in patients with stable angina pectoris.
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Affiliation(s)
- T Sato
- Tachikawa General Hospital, Nagaoka, Japan
| | - Y Taya
- Tachikawa General Hospital, Nagaoka, Japan
| | - Y Ikeda
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - S Fujita
- Tachikawa General Hospital, Nagaoka, Japan
| | | | - M Okabe
- Tachikawa General Hospital, Nagaoka, Japan
| | - Y Aizawa
- Tachikawa General Hospital, Nagaoka, Japan
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Toh U, Okabe M, Takao Y, Tanaka Y, Shigaki T, Takenaka M, Iwakuma N, Sudo T, Yamada A, Shichijo S, Itoh K, Akagi Y. Abstract P4-06-06: Comparison of the immunological and clinical effect of personalized peptide vaccination for patients with breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-06-06] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Selected therapeutic personalized peptide vaccines (PPV) were effective for boosting anticancer immune response that was associated with the clinical outcome as a prognostic factor for metastatic recurrent breast cancer (mrBC) 1-2. In this study, we investigated the immunological and clinical effect of PPV as the prophylactic cancer vaccine for non-recurrent but high-risk BC (nrhrBC) patients (pts), and we compared it's features to those of the mrBC pts who had active cancers or became resistant to the standard therapies(TR-mrBC). Methods: Material and Patient eligibility criteria: The peptides were selected from the 31 PPVs according to the results of HLA typing and peptide-specific IgG titers. Pts with a histological diagnosis of BC and their HLA-A molecules should be each of -A2, A3, A11, A24, A26, A31 or A33. The clinical protocols were approved by the institutional review board. (UMIN000003081and 00000184400000). Treatment schedule: A maximum of 4 peptides was administrated as weekly for initial four vaccinations and as biweekly for further inoculations. The concomitant standard endocrine therapy and the chemo-endocrine therapy were available for nrhrBC pts after finishing the standard adjuvant chemotherapy, and for mrBC pts concurrently. Immune and clinical response assessment: Specific T-cell responses, IgG titers and cytokines were evaluated using by interferon (IFN)-γ ELISPOT, Luminex assay and ELISA system in every 6-8 vaccinations. Toxicity, clinical response and correlation with the immune responses were investigated. Results: 16 pts with nrhrBC, 41 pts with mrBC and 79 pts with TR-mrBC received median 18, 16 and 14 vaccines, respectively. After PPV therapies, peptide-specific IgG and CTLs increased significantly in a total of 47 (77%) and 37(60%) in nrhrBC pts, 102 (63%) and 98 (61%) in mrBC pts, and 150(53%) and 100 (42%) in TR-mrBC pts. Pts experienced Grade 1-3 skin reaction at injection site, no other grade 3 or 4 SAEs were associated with PPV but with the disease progression or combination therapy. The median time to progression (TTP) and overall survival (OS) were not reached in nrhrBC pts, 7.8 and 29 months in mrBC pts, and were 7.5 and 15.9 months in TR-mrBC pts, respectively. The peptide specific CTL response was correlated significantly with OS in nrhrBC pts and the IgG levels were associated with the better OS in either non TR-mrBC pts or TR-mrBC pts. High levels of IL-6, GM-CSF, IFN-g, IL-2 receptor, BAFF were associated with worse prognosis for pts with TR-mrBC. And high levels of GM-CSF and BAFF were associated with worse prognosis for pts with nrhrBC and mrBC, respectively. In contrast, High levels of IL-2 were associated with the better prognosis for pts with mrBC. Conclusion: This study indicated that immunological features of these three groups were different from each other with most potent PPV-induced immune boosting for nrhrBC pts. Pts with mrBC who had lower immune-suppressive cytokine levels had the better prognosis. These results suggested the PPV therapy could be effective for postoperative prophylactic vaccination in patients with nrhrBC. References: 1. Takahashi R, Toh U, et al. Breast Cancer Res. 2014; 2. Toh U, Okabe M, et al. THE BREAST 2015.
Citation Format: Toh U, Okabe M, Takao Y, Tanaka Y, Shigaki T, Takenaka M, Iwakuma N, Sudo T, Yamada A, Shichijo S, Itoh K, Akagi Y. Comparison of the immunological and clinical effect of personalized peptide vaccination for patients with breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-06-06.
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Affiliation(s)
- U Toh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - M Okabe
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - Y Takao
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - Y Tanaka
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - T Shigaki
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - M Takenaka
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - N Iwakuma
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - T Sudo
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - A Yamada
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - S Shichijo
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - K Itoh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - Y Akagi
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
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Sato T, Aizawa Y, Suzuki N, Taya Y, Yuasa S, Koshikawa T, Fuse K, Ikeda Y, Fujita S, Kitazawa H, Takahashi M, Okabe M. P6584Impact of cancer on major bleeding and stroke in patients using direct oral anticoagulants. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Sato
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - Y Aizawa
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - N Suzuki
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - Y Taya
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - S Yuasa
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - T Koshikawa
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - K Fuse
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - Y Ikeda
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - S Fujita
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - H Kitazawa
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - M Takahashi
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
| | - M Okabe
- Tachikawa General Hospital, Cardiology, Nagaoka, Japan
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Hirono K, Hata Y, Takarada S, Miyao N, Okabe M, Saito K, Ozawa SW, Nishida N, Ichida F. P2252Cardiomyopathy phenotypes and genotypes for children with left ventricular noncompaction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Hirono
- University of Toyama, Department of Pediatrics, Toyama, Japan
| | - Y Hata
- University of Toyama, Department of Legal Medicine, Toyama, Japan
| | - S Takarada
- University of Toyama, Department of Pediatrics, Toyama, Japan
| | - N Miyao
- University of Toyama, Department of Pediatrics, Toyama, Japan
| | - M Okabe
- University of Toyama, Department of Pediatrics, Toyama, Japan
| | - K Saito
- University of Toyama, Department of Pediatrics, Toyama, Japan
| | - S W Ozawa
- University of Toyama, Department of Pediatrics, Toyama, Japan
| | - N Nishida
- University of Toyama, Department of Legal Medicine, Toyama, Japan
| | - F Ichida
- University of Toyama, Department of Pediatrics, Toyama, Japan
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Toh U, Saku S, Iwakuma N, Takao Y, Okabe M, Akashi M, Yamada A, Shichijo S, Itoh K, Akagi Y. Abstract P3-05-09: Prognostic factors for therapeutic personalized peptide vaccines in patients with metastatic recurrent breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p3-05-09] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Background: We have previously reported the prognostic role of humoral antigen spreading response against prostate-related antigen (PRA) for metastatic recurrent breast cancer (mrBC) patients who received personalized peptide vaccine (PPV) therapy (Toh U, SABCS 2015). The prognostic effect was additionally evaluated by the clinical relevant factors including intrinsic subtype, the regimens of combined chemo-hormonal therapies in present study.
Methods:We analyzed serum IgG responses to all of the peptide candidates included PRAs (PSA, PAP and PMSA) after PPV therapy by the Luminex systemusing peripheral blood samples from 77 vaccinated mrBC patients. The clinical factors and relevant events were statistically evaluated.
Results: After 6 and 12cycles of PPV therapy, the serum IgG of anti-PSA, anti-PAP, and/or anti-PMSA increased significantly in 31 patients (PRA response group), and the median progression free survival (PFS) and median overall survival (OS) were 8.1 and 14.3 months, but were 5.1 and 10.8 months, respectively, in the remaining 46 patients with no anti-PRA IgG response (PRA non-response Group). The anti-PRA IgG level was marginally correlated withPFS (p=0.059) and OS (p=0.082) between these two groups, which was a significant prognostic factor for PFS (Log-rank: 0.009) in estrogen-positive cancer patients (ER+). The statistical analyses showed that the clinical outcome was in favor of > 60 year-old patients, those with longer PPV therapies (>3 months), and those who received combined standard hormonal therapies or bisphosphonate/anti-RANKL therapy.
Conclusions: This study indicated a clinical significance between the pre-and post- PPV therapy measurement of serum anti-PRA IgG in patients with mrBC, which may be a useful prognostic marker for monitoring peptide vaccine treatment outcomes, particularly for patients > 60 years with ER+ breast cancer. These results also suggest that the immunotherapeutic peptide vaccine could be efficiently combined with hormonal therapy, anti-HER2 therapy, and bisphosphonate/anti-RANKL therapy in mrBC patients.
Citation Format: Toh U, Saku S, Iwakuma N, Takao Y, Okabe M, Akashi M, Yamada A, Shichijo S, Itoh K, Akagi Y. Prognostic factors for therapeutic personalized peptide vaccines in patients with metastatic recurrent breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P3-05-09.
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Affiliation(s)
- U Toh
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - S Saku
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - N Iwakuma
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - Y Takao
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - M Okabe
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - M Akashi
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - A Yamada
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - S Shichijo
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - K Itoh
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - Y Akagi
- Kurume University School of Medicine, Kurume, Japan; Kurume University Research Center for Innovative Cancer Therapy, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
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Sato T, Kishi S, Fuse K, Fujita S, Ikeda Y, Kitazawa H, Takahashi M, Sato M, Okabe M, Aizawa Y. P4447The effect of sodium glucose cotransporter-2 inhibitors, dapagliflozin treatment on epicardial adipose tissue volume. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4447] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tsutsui Y, Kubota T, Nozoe M, Suematsu N, Okabe M, Yamamoto Y. P581High prevalence of positive 99mTc-pyrophosphate scintigraphy in patients with non-ischemic and non-valvular heart failure over sixty years of age. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p581] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Nagahisa Y, Hashida K, Matsumoto R, Kawashima R, Okabe M, Kawamoto K. A randomized clinical study on postoperative pain comparing between the supraglottic airway device and endotracheal tubing in transabdominal preperitoneal repair (TAPP). Hernia 2017; 21:391-396. [PMID: 28194529 DOI: 10.1007/s10029-017-1586-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 09/23/2016] [Accepted: 01/22/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Transabdominal preperitoneal (TAPP) repair is the most widely used laparoscopic technique for the treatment of inguinal hernia in Japan. Many studies have shown that in comparison with open hernia repair, laparoscopic repair results in less pain and a shorter convalescence. However, postoperative pain remains a concern. One possible cause of postoperative pain in the early postoperative phase is strain or cough on removal of the endotracheal tube. Use of a supraglottic airway (SGA) device helps to avoid such complaints. We evaluated postoperative pain after TAPP repair using the SGA for general anesthesia. METHODS We evaluated the postoperative pain in 146 patients with inguinal hernia repaired by TAPP in our hospital between May 2013 and May 2016. A total of 144 adult patients of American Society of Anesthesiologists physical status I and II who underwent needlescopic TAPP surgery were randomly allocated to one of two groups of 72 patients: group A (SGA), in which the patient's airway was secured with an appropriately sized I-gel, and group B (endotracheal tube), in which the airway was secured under laryngoscopy. RESULTS There was no significant difference between the groups regarding patient background, postoperative hospital stay, and operation time, and TAPP was performed safely in all cases. In the analysis of postoperative pain, the mean Numerical Rating Scale score of peak pain in group A was significantly less than that of group B (2.10 ± 2.05 vs 2.90 ± 2.65; p = 0.043). In group A, the percentage of patients who had an NRS score of 0 was 51.4% 30 min after surgery, 62.5% after 6 h and 68.1% at POD1, and compared to group B, the NRS scores were significantly higher at POD1 (p = 0.003), and the level of postoperative pain in group A tended to decrease earlier than that in group B. CONCLUSIONS The results of this study are the first to show that an SGA device can reduce postoperative pain after laparoscopic surgery.
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Affiliation(s)
- Y Nagahisa
- Department of Surgery, Kurashiki Central Hospital, Miwa 1-1-1, Kurashiki City, Okayama, Japan.
| | - K Hashida
- Department of Surgery, Kurashiki Central Hospital, Miwa 1-1-1, Kurashiki City, Okayama, Japan
| | - R Matsumoto
- Department of Surgery, Kurashiki Central Hospital, Miwa 1-1-1, Kurashiki City, Okayama, Japan
| | - R Kawashima
- Department of Surgery, Kurashiki Central Hospital, Miwa 1-1-1, Kurashiki City, Okayama, Japan
| | - M Okabe
- Department of Surgery, Kurashiki Central Hospital, Miwa 1-1-1, Kurashiki City, Okayama, Japan
| | - K Kawamoto
- Department of Surgery, Kurashiki Central Hospital, Miwa 1-1-1, Kurashiki City, Okayama, Japan
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Hino T, Muro Y, Tamura-Nakano M, Okabe M, Tateno H, Yanagimachi R. The Behavior and Acrosomal Status of Mouse Spermatozoa In Vitro, and Within the Oviduct During Fertilization after Natural Mating. Biol Reprod 2016; 95:50. [DOI: 10.1095/biolreprod.116.140400] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 07/06/2016] [Indexed: 11/01/2022] Open
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Yamazaki K, Nagase M, Tamagawa H, Ueda S, Tamura T, Murata K, Eguchi Nakajima T, Baba E, Tsuda M, Moriwaki T, Esaki T, Tsuji Y, Muro K, Taira K, Denda T, Funai S, Shinozaki K, Yamashita H, Sugimoto N, Okuno T, Nishina T, Umeki M, Kurimoto T, Takayama T, Tsuji A, Yoshida M, Hosokawa A, Shibata Y, Suyama K, Okabe M, Suzuki K, Seki N, Kawakami K, Sato M, Fujikawa K, Hirashima T, Shimura T, Taku K, Otsuji T, Tamura F, Shinozaki E, Nakashima K, Hara H, Tsushima T, Ando M, Morita S, Boku N, Hyodo I. Randomized phase III study of bevacizumab plus FOLFIRI and bevacizumab plus mFOLFOX6 as first-line treatment for patients with metastatic colorectal cancer (WJOG4407G). Ann Oncol 2016; 27:1539-46. [PMID: 27177863 DOI: 10.1093/annonc/mdw206] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [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: 03/30/2016] [Accepted: 05/09/2016] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND FOLFIRI and FOLFOX have shown equivalent efficacy for metastatic colorectal cancer (mCRC), but their comparative effectiveness is unknown when combined with bevacizumab. PATIENTS AND METHODS WJOG4407G was a randomized, open-label, phase III trial conducted in Japan. Patients with previously untreated mCRC were randomized 1:1 to receive either FOLFIRI plus bevacizumab (FOLFIRI + Bev) or mFOLFOX6 plus bevacizumab (mFOLFOX6 + Bev), stratified by institution, adjuvant chemotherapy, and liver-limited disease. The primary end point was non-inferiority of FOLFIRI + Bev to mFOLFOX6 + Bev in progression-free survival (PFS), with an expected hazard ratio (HR) of 0.9 and non-inferiority margin of 1.25 (power 0.85, one-sided α-error 0.025). The secondary end points were response rate (RR), overall survival (OS), safety, and quality of life (QoL) during 18 months. This trial is registered to the University Hospital Medical Information Network, number UMIN000001396. RESULTS Among 402 patients enrolled from September 2008 to January 2012, 395 patients were eligible for efficacy analysis. The median PFS for FOLFIRI + Bev (n = 197) and mFOLFOX6 + Bev (n = 198) were 12.1 and 10.7 months, respectively [HR, 0.905; 95% confidence interval (CI) 0.723-1.133; P = 0.003 for non-inferiority]. The median OS for FOLFIRI + Bev and mFOLFOX6 + Bev were 31.4 and 30.1 months, respectively (HR, 0.990; 95% CI 0.785-1.249). The best overall RRs were 64% for FOLFIRI + Bev and 62% for mFOLFOX6 + Bev. The common grade 3 or higher adverse events were leukopenia (11% in FOLFIRI + Bev/5% in mFOLFOX6 + Bev), neutropenia (46%/35%), diarrhea (9%/5%), febrile neutropenia (5%/2%), peripheral neuropathy (0%/22%), and venous thromboembolism (6%/2%). The QoL assessed by FACT-C (TOI-PFC) and FACT/GOG-Ntx was favorable for FOLFIRI + Bev during 18 months. CONCLUSION FOLFIRI plus bevacizumab was non-inferior for PFS, compared with mFOLFOX6 plus bevacizumab, as the first-line systemic treatment for mCRC. CLINICAL TRIALS NUMBER UMIN000001396.
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Affiliation(s)
- K Yamazaki
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - M Nagase
- Department of Clinical Oncology, Jichi Medical University, Shimotsuke
| | - H Tamagawa
- Department of Surgery, Osaka General Medical Center, Osaka
| | - S Ueda
- Department of Medical Oncology, Kinki University Faculty of Medicine, Higashiosaka
| | - T Tamura
- Department of Medical Oncology, Nara Hospital Kinki University Faculty of Medicine, Ikoma
| | - K Murata
- Department of Surgery, Suita Municipal Hospital, Suita
| | - T Eguchi Nakajima
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki
| | - E Baba
- Department of Comprehensive Clinical Oncology, Kyushu University Faculty of Medical Sciences, Fukuoka
| | - M Tsuda
- Department of Gastroenterological Oncology, Hyogo Cancer Center, Akashi
| | - T Moriwaki
- Division of Gastroenterology, University of Tsukuba, Tsukuba
| | - T Esaki
- Department of Gastrointestinal and Medical Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka
| | - Y Tsuji
- Department of Medical Oncology, Tonan Hospital, Sapporo
| | - K Muro
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya
| | - K Taira
- Clinical Oncology, Osaka City General Hospital, Osaka
| | - T Denda
- Division of Gastroenterology, Chiba Cancer Center, Chiba
| | - S Funai
- Department of Surgery, Sakai Hospital Kinki University Faculty of Medicine, Sakai
| | - K Shinozaki
- Division of Clinical Oncology, Hiroshima Prefectural Hospital, Hiroshima
| | - H Yamashita
- Department of Gastroenterology and Hepatology, Okayama Medical Center, Okayama
| | - N Sugimoto
- Department of Clinical Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka
| | - T Okuno
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe
| | - T Nishina
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Matuyama
| | - M Umeki
- Department of Surgery, Hyogo Prefectural Awaji Medical Center, Sumoto
| | - T Kurimoto
- Department of Gastrointestinal Oncology, Nagoya Kyoritsu Hospital, Nagoya
| | - T Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School, Tokushima
| | - A Tsuji
- Department of Medical Oncology, Kochi Health Sciences Center, Kochi
| | - M Yoshida
- Division of Cancer Chemotherapy Center, Osaka Medical College Hospital, Takatsuki
| | - A Hosokawa
- Department of Gastroenterology and Hematology, Faculty of Medicine, University of Toyama, Toyama
| | - Y Shibata
- Department of Chemotherapy, Miyazaki Prefectural Miyazaki Hospital, Miyazaki
| | - K Suyama
- Department of Medical Oncology, Toranomon Hospital, Tokyo
| | - M Okabe
- Department of Surgery, Kurashiki Central Hospital, Kurashiki
| | - K Suzuki
- Department of gastroenterology, Kushiro City General Hospital, Kushiro
| | - N Seki
- Division of Medical Oncology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo
| | - K Kawakami
- Department of Gastroenterology, Muroran City General Hospital, Muroran
| | - M Sato
- Department of Gastroenterology and Hepatology, Ryuugasaki Saiseikai Hospital, Ryugasaki
| | - K Fujikawa
- Department of Gastroenterology, Hokkaido Cancer Center, Sapporo
| | - T Hirashima
- Department of Thoracic Malignancy, Osaka Prefectural Medical Center for Respiratory and Allergic Diseases, Habikino
| | - T Shimura
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya
| | - K Taku
- Division of Medical Oncology, Shizuoka General Hospital, Shizuoka
| | - T Otsuji
- Department of Gastroenterology, Dongo Hospital, Yamatotakada
| | - F Tamura
- Department of Gastroenterology, Kumamoto Regional Medical Center, Kumamoto
| | - E Shinozaki
- Department of Gastroenterology, Cancer Institute Hospital of JFCR, Tokyo
| | - K Nakashima
- First Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Miyazaki
| | - H Hara
- Department of Gastroenterology, Saitama Cancer Center, Saitama
| | - T Tsushima
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - M Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya
| | - S Morita
- Department of Biomedical Statistics and Bioinformatics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - N Boku
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki
| | - I Hyodo
- Division of Gastroenterology, University of Tsukuba, Tsukuba
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Adachi N, Adamovitch V, Adjovi Y, Aida K, Akamatsu H, Akiyama S, Akli A, Ando A, Andrault T, Antonietti H, Anzai S, Arkoun G, Avenoso C, Ayrault D, Banasiewicz M, Banaśkiewicz M, Bernardini L, Bernard E, Berthet E, Blanchard M, Boreyko D, Boros K, Charron S, Cornette P, Czerkas K, Dameron M, Date I, De Pontbriand M, Demangeau F, Dobaczewski Ł, Dobrzyński L, Ducouret A, Dziedzic M, Ecalle A, Edon V, Endo K, Endo T, Endo Y, Etryk D, Fabiszewska M, Fang S, Fauchier D, Felici F, Fujiwara Y, Gardais C, Gaul W, Gurin L, Hakoda R, Hamamatsu I, Handa K, Haneda H, Hara T, Hashimoto M, Hashimoto T, Hashimoto K, Hata D, Hattori M, Hayano R, Hayashi R, Higasi H, Hiruta M, Honda A, Horikawa Y, Horiuchi H, Hozumi Y, Ide M, Ihara S, Ikoma T, Inohara Y, Itazu M, Ito A, Janvrin J, Jout I, Kanda H, Kanemori G, Kanno M, Kanomata N, Kato T, Kato S, Katsu J, Kawasaki Y, Kikuchi K, Kilian P, Kimura N, Kiya M, Klepuszewski M, Kluchnikov E, Kodama Y, Kokubun R, Konishi F, Konno A, Kontsevoy V, Koori A, Koutaka A, Kowol A, Koyama Y, Kozioł M, Kozue M, Kravtchenko O, Kruczała W, Kudła M, Kudo H, Kumagai R, Kurogome K, Kurosu A, Kuse M, Lacombe A, Lefaillet E, Magara M, Malinowska J, Malinowski M, Maroselli V, Masui Y, Matsukawa K, Matsuya K, Matusik B, Maulny M, Mazur P, Miyake C, Miyamoto Y, Miyata K, Miyata K, Miyazaki M, Molȩda M, Morioka T, Morita E, Muto K, Nadamoto H, Nadzikiewicz M, Nagashima K, Nakade M, Nakayama C, Nakazawa H, Nihei Y, Nikul R, Niwa S, Niwa O, Nogi M, Nomura K, Ogata D, Ohguchi H, Ohno J, Okabe M, Okada M, Okada Y, Omi N, Onodera H, Onodera K, Ooki S, Oonishi K, Oonuma H, Ooshima H, Oouchi H, Orsucci M, Paoli M, Penaud M, Perdrisot C, Petit M, Piskowski A, Płocharski A, Polis A, Polti L, Potsepnia T, Przybylski D, Pytel M, Quillet W, Remy A, Robert C, Sadowski M, Saito M, Sakuma D, Sano K, Sasaki Y, Sato N, Schneider T, Schneider C, Schwartzman K, Selivanov E, Sezaki M, Shiroishi K, Shustava I, Śniecińska A, Stalchenko E, Staroń A, Stromboni M, Studzińska W, Sugisaki H, Sukegawa T, Sumida M, Suzuki Y, Suzuki K, Suzuki R, Suzuki H, Suzuki K, Świderski W, Szudejko M, Szymaszek M, Tada J, Taguchi H, Takahashi K, Tanaka D, Tanaka G, Tanaka S, Tanino K, Tazbir K, Tcesnokova N, Tgawa N, Toda N, Tsuchiya H, Tsukamoto H, Tsushima T, Tsutsumi K, Umemura H, Uno M, Usui A, Utsumi H, Vaucelle M, Wada Y, Watanabe K, Watanabe S, Watase K, Witkowski M, Yamaki T, Yamamoto J, Yamamoto T, Yamashita M, Yanai M, Yasuda K, Yoshida Y, Yoshida A, Yoshimura K, Żmijewska M, Zuclarelli E. Measurement and comparison of individual external doses of high-school students living in Japan, France, Poland and Belarus-the 'D-shuttle' project. J Radiol Prot 2016; 36:49-66. [PMID: 26613195 DOI: 10.1088/0952-4746/36/1/49] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Twelve high schools in Japan (of which six are in Fukushima Prefecture), four in France, eight in Poland and two in Belarus cooperated in the measurement and comparison of individual external doses in 2014. In total 216 high-school students and teachers participated in the study. Each participant wore an electronic personal dosimeter 'D-shuttle' for two weeks, and kept a journal of his/her whereabouts and activities. The distributions of annual external doses estimated for each region overlap with each other, demonstrating that the personal external individual doses in locations where residence is currently allowed in Fukushima Prefecture and in Belarus are well within the range of estimated annual doses due to the terrestrial background radiation level of other regions/countries.
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Affiliation(s)
- N Adachi
- Adachi High School, 2-347 Kakunai, Nihonmatsu, Fukushima 964-0904, Japan
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Okabe M, Toh U, Iwakuma N, Mishima M, Kawahara A, Kage M, Itoh K, Akagi Y. Abstract P5-08-16: Local immunologic environment related with tumor infiltrating lymphocytes (TIL) and PD-1/PD-L1 expression in early stage breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p5-08-16] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose:
Recent studies have shown that local immune environment revealed with programmed death 1(PD-1)/programmed death ligand 1(PD-L1) and tumor infiltrating lymphocytes(TIL) affects the tumor-growth and prognosis. In this study, we evaluated the tumor local immune environments using immunohistological staining for analysis of PD-1/PD-L1 expression and TIL of tumor local in operable early-stage breast cancer.
Method:
A total of 100 surgical specimens of stageI-III invasive breast carcinoma paraffinembedded between 1995 and 2005 were analyzed. Immunohistological staining for PD-1, PD-L1, PTEN, CD3, CD8, and CD163 were performed by the conventional PAP method. In addition, intratumoral and intrastromal TILs and macrophages were simultaneously stained by anti-CD3, CD8, CD163 antibodies and measured by 'Win ROOF' computer software (version 5.7, Mitani Corporation, Japan).
Results:
Intratumoral PD-1 expressed significantly higher in triple negative breast cancer (TNBC) compared to other subtype BC (p=0.0094), intratumoral and intrastromal CD3+ lymphocytes and CD163+ macrophages were also significantly higher in TNBC, respectively (CD3: p=0.0002; 0.0139 and CD163: p=0.0043; 0.0270). PTEN loss was also more frequently observed in TNBC (p=0.0475). In addition, after a median 5-year follow-up, patients of luminal A subtype with lower PD-L1 and PTEN expression showed better disease free survival (DFS) with a significant difference (p=0.0148, p=0.0475).
Conclusion:
Local expression of PD-1/PD-L1 antigens on tumor cells, CD3+ lymphocytes, CD163+ macrophages infiltration singnificantly increased in early-stage TNBC. PTEN expression on tumor local might be associated with DFS in patients with early-stage BC.
Citation Format: Okabe M, Toh U, Iwakuma N, Mishima M, Kawahara A, Kage M, Itoh K, Akagi Y. Local immunologic environment related with tumor infiltrating lymphocytes (TIL) and PD-1/PD-L1 expression in early stage breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P5-08-16.
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Affiliation(s)
- M Okabe
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - U Toh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - N Iwakuma
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - M Mishima
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - A Kawahara
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - M Kage
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - K Itoh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - Y Akagi
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
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Toh U, Okabe M, Iwakuma N, Mishima M, Shichijo S, Yamada A, Noguchi M, Itoh K, Akagi Y. Abstract P2-11-04: Serum IgG response against prostate-related antigen revealed by personalized peptide vaccination in patients with metastatic recurrent breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-11-04] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: We have indicated that IgG and CTL boosting response could be a potential prognostic factor for overall survival (OS) and progression free survival (PFS) in metastatic recurrent breast cancer (mrBC) patients, who had received personalized selected peptide vaccine (PPV) therapy in our previously reported clinical phase II study. The aim of this study is to identify the prognostic role of serum value of IgG antibody against prostate related-antigen (PRA), including prostate-specific antigen (PSA), prostate specific membrane antigen (PSMA) and prostate acid phosphatase (PAP) in mrBC patients
Methods: Peripheral blood samples of 77 patients with mrBC were analyzed for serum anti-PRA IgG levels before and after 6th and 12th PPV therapy prospectively. Most of the peptides using for PPV are derived from cancer associated antigens expressing in various types of advanced cancers, but the peptides derived from PRAs were not used in this study.
Results: After PPV therapy, total serum levels of anti-PRA IgG were significantly increased in 31 mrBC patients (Group 1) whereas in remaining 46 rmBC patients (Group 2). Either serum anti-PSA, anti-PAP and/or anti-PMSA IgGs showed a significant increase in patients of Group 1 after 6th (p=0.045) and 12th PPV treatment (p < 0.001), irrespective of their intrinsic subtypes. The median PFS and median OS of Group 1 patients were 8.1 and 14.3 months, while those of Group 2 patients were 5.1 and 10.8 months, respectively. Anti-PRA IgG levels were significantly associated with PFS (p=0.0073; HR: 0.37) and OS (p=0.025; HR: 0.43) between these two groups, whereas no significant relation was found with age, clinical response rate and recurrent metastatic status.
Conclusions: The Group 1 patients with elevated anti-PRA IgG may have better prognosis compared to Group 2 patients who showed no IgG elevation after PPV treatment for rmBC. These results indicated a clinical significance between pre-and post- treatment measurement of serum anti-PRA IgGs in mrBC patients receiving PPV therapy, and may be a useful prognostic marker for monitoring the outcome to PPV treatment of breast cancer.
Citation Format: Toh U, Okabe M, Iwakuma N, Mishima M, Shichijo S, Yamada A, Noguchi M, Itoh K, Akagi Y. Serum IgG response against prostate-related antigen revealed by personalized peptide vaccination in patients with metastatic recurrent breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-11-04.
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Affiliation(s)
- U Toh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - M Okabe
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - N Iwakuma
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - M Mishima
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - S Shichijo
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - A Yamada
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - M Noguchi
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - K Itoh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
| | - Y Akagi
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Kurume University Cancer Vaccine Center, Kurume, Fukuoka, Japan
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Wada M, Minamisono T, Akamatsu A, Okabe M, Morita T, Handa Y, Unoki T. Serum lipid and lipoprotein abnormalities in major clinical entities of renal disease. Contrib Nephrol 2015; 9:61-8. [PMID: 668389 DOI: 10.1159/000401433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
More than half of the patients with glomerulonephritis, nephrotic syndrome and renovascular hypertension showed obviously abnormal profiles of serum lipoproteins (Lps). The abnormal profiles returned to normal or near-normal when the disease was ameliorated or corrected surgically. A unique Lp profile (broad midband pattern, BMP) was observed in approximately 89% of uremic patients on hemodialysis therapy. The results of the current investigations indicated that the BMP could probably be formed by the accumulation of catabolic remnants of VLDL.
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Abe N, Kasuga S, Okabe M, Goto T. Single laboratory method validation for cyanide in beans with insufficient levels of β-glucosidase activity. Quality Assurance and Safety of Crops & Foods 2015. [DOI: 10.3920/qas2013.0323] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- N. Abe
- Faculty of Agriculture, Shinshu University, Minamiminowa-mura, Kamiina, Nagano 399-4598, Japan
| | - S. Kasuga
- Faculty of Agriculture, Shinshu University, Minamiminowa-mura, Kamiina, Nagano 399-4598, Japan
| | - M. Okabe
- Faculty of Agriculture, Shinshu University, Minamiminowa-mura, Kamiina, Nagano 399-4598, Japan
| | - T. Goto
- Faculty of Agriculture, Shinshu University, Minamiminowa-mura, Kamiina, Nagano 399-4598, Japan
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Okabe M. Lessons Learned in Andrology: seeing is believing. Andrology 2013; 2:3-4. [PMID: 24357627 DOI: 10.1111/j.2047-2927.2013.00180.x] [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: 11/27/2022]
Affiliation(s)
- M Okabe
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.
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Yoshimura Y, Uchida K, Miyahara T, Onishi T, Okabe M, Tateyama Y. PP039-MON IMPACT OF BCAA ENRICHED NUTRITIONAL SUPPORT ON REHABILITATION IN HOSPITALIZED FRAIL ELDERLY PATIENTS: A RANDOMIZED COTROLLED TRIAL. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60351-9] [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: 10/26/2022]
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Saeki T, Takahashi T, Okabe M, Furuya A, Hanai N, Yamagami K, Mandai K, Moriwaki S, Doihara H, Takashima S, Salomon D. Immunohistochemical detection of ribonucleotide reductase in human breast-tumors. Int J Oncol 2012; 6:523-9. [PMID: 21556566 DOI: 10.3892/ijo.6.3.523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Ribonucleotide reductase (RNR) consists of two non-identical subunits, R1 and R2 and is one of the key enzymes involved in DNA biosynthesis. RNR activity is considerably higher in malignant tumors than in normal tissues in the rat suggesting that RNR may play an important role in the pathogenesis of human tumors. In order to obtain immunological reagents to study the localization and level of expression of RNR in various human tissues, a synthetic peptide containing sequences corresponding to the COOH-terminal region of the human R2 subunit was used to generate rat monoclonal antibodies. The generated rat monoclonal antibodies (IgG) inhibited RNR enzymatic activity purified from murine P388 leukemia cells. These antibodies were used to immunohistochemically examine the distribution of RNR in a small panel of 8 malignant and 4 benign human breast tumors. Positive immunostaining for RNR was observed in the cytoplasm of human breast carcinoma cells in which a specific 44 kDa specific band of R2 subunit was also detected by Western blot analysis. The immunostaining was blocked by preabsorption of the antibody with an excess amount of the synthetic peptide immunogen. In 8 of 8 breast carcinomas, positive immunostaining for the R2 subunit was observed whereas noninvolved, adjacent breast tissue showed no staining with this antibody. In addition, few of the benign breast lesions exhibited staining with this antibody. These data indicate that these antibodies can immunohistochemically detect RNR in frozen or formalin-fixed, paraffin- embedded tissues and that there is a differential expression of RNR between breast tumors and non-involved breast tissue. Immunohistochemical detection of RNR using these antibodies may therefore be useful for the diagnosis of human breast tumors.
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Affiliation(s)
- T Saeki
- NCI,TUMOR GROWTH FACTOR SECT,TUMOR IMMUNOL & BIOL LAB,BETHESDA,MD 20892. KYOWA HAKKO KOGYO CO LTD,TOKYO RES LABS,TOKYO,JAPAN. KYOWA HAKKO KOGYO CO LTD,PHARMATHEUT RES LABS,SHIZUOKA,JAPAN
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Kimura T, Ikawa M, Okabe M, Kumasawa K. I185 STATINS IN PRE-ECLAMPSIA. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60215-x] [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: 10/27/2022]
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Xia H, Nakayama T, Sakuma H, Yamada S, Sato F, Takino H, Okabe M, Fujiyoshi Y, Hattori H, Inagaki H. Analysis of API2-MALT1 fusion, trisomies, and immunoglobulin VH genes in pulmonary mucosa-associated lymphoid tissue lymphoma. Hum Pathol 2011; 42:1297-304. [PMID: 21396678 DOI: 10.1016/j.humpath.2010.11.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [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] [Received: 07/30/2010] [Revised: 11/23/2010] [Accepted: 11/24/2010] [Indexed: 02/06/2023]
Abstract
Pulmonary mucosa-associated lymphoid tissue lymphoma is unique in that chronic inflammation is rare and that API2-MALT1 fusion, resulting from t(11;18)(q21;q21), occurs frequently. In this study, we examined 20 cases for API2-MALT1 fusion using the multiplex reverse-transcription polymerase chain reaction and looked for trisomy 3, trisomy 18, and abnormalities of MALT1 and IGH genes using fluorescence in situ hybridization. In addition, we analyzed VH genes by subcloning of the monoclonal polymerase chain reaction products. Of 20 cases studied, we detected gene abnormalities in 16: API2-MALT1 fusion in 9, trisomy 3 in 5, trisomy 18 in 4, MALT1 abnormality in 13, and IGH abnormality in 1. MALT1 gene abnormalities were concordant with API2-MALT1 fusion or trisomy 18. One case showed API2-MALT1 fusion and trisomy 3. On detection of API2-MALT1 fusion and trisomies, we were able to divide our cases into 3 groups, API2-MALT1 positive, trisomy positive, and no detectable gene abnormality, suggesting that tumor development had processed along different genetic pathways. All 20 cases were analyzed for VH genes. Most of the VH genes selected by the lymphomas belonged to the VH3 family, but there was no restriction to any particular VH fragment. Of interest, VH genes were unmutated in 7 cases, suggesting that T-cell-independent extrafollicular B-cell maturation may be important in the development of this lymphoma. In addition, both mutated and unmutated tumor cases were found to carry the API2-MALT1 fusion and trisomy 3. This observation suggests that these gene abnormalities may occur in microenvironments found before or outside of follicular germinal centers.
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Affiliation(s)
- Hongjing Xia
- Department of Pathology, Graduate School of Medical Sciences, Nagoya City University, Nagoya 467-8601, Japan
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Kumasawa K, Kimura T, Okabe M, Ikawa M. Placenta specific gene manipulation and its application for the research of preeclampsia. J Reprod Immunol 2010. [DOI: 10.1016/j.jri.2010.08.025] [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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Hosoyamada M, Takiue Y, Morisaki H, Cheng J, Ikawa M, Okabe M, Morisaki T, Ichida K, Hosoya T, Shibasaki T. Establishment and analysis of SLC22A12 (URAT1) knockout mouse. Nucleosides Nucleotides Nucleic Acids 2010; 29:314-20. [PMID: 20544513 DOI: 10.1080/15257771003738634] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In order to elucidate the mechanisms of post-exercise acute renal failure, one of the complications of hereditary renal hypouricemia, we have targeted the mouse Slc22a12 gene by the exchange of exons 1-4 with pMC1neo-polyA. The knockout mice revealed no gross anomalies. The concentration ratio of urinary urate/creatinine of the knockout mice was significantly higher than that of wildtype mice, indicating an attenuated renal reabsorption of urate. The plasma levels of urate were around 11 muM and were similar among the genotypes. Although the fractional excretion of urate of knockout mice was tend to higher than that of wildtype mice, the urate reabsorption ability remained in the kidney of knockout mice, indicating a urate reabsorptive transporter other than Urat1.
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Affiliation(s)
- M Hosoyamada
- Pharmacotherapeutics, Faculty of Pharmacy, Keio University, Tokyo, Japan.
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Nakayama T, Miyabe S, Okabe M, Sakuma H, Ijichi K, Hasegawa Y, Nagatsuka H, Shimozato K, Inagaki H. Clinicopathological significance of the CRTC3-MAML2 fusion transcript in mucoepidermoid carcinoma. Mod Pathol 2009; 22:1575-81. [PMID: 19749740 DOI: 10.1038/modpathol.2009.126] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Mucoepidermoid carcinoma is the most common primary malignancy of the salivary gland. We and others showed that CRTC1-MAML2 gene fusion was associated with favorable clinicopathological tumor features. Recently, a novel gene fusion, CRTC3-MAML2, was reported as a rare gene alteration in a case of mucoepidermoid carcinoma. However, its frequency and clinicopathological significance remains unclear. In all, 101 cases of mucoepidermoid carcinoma and 89 cases of non-mucoepidermoid carcinoma of the salivary gland were analyzed, and RNA was extracted from formalin-fixed, paraffin-embedded specimens. In the CRTC family, there have been three genes, CRTC1, CRTC2, and CRTC3. We developed reverse transcription-polymerase chain reaction (RT-PCR) assays for CRTC1-MAML2, CRTC2-MAML2, and CRTC3-MAML2 fusions. Clinicopathological data of the patients were obtained from their clinical records. Of 101 cases of mucoepidermoid carcinoma, 34 (34%) and 6 (6%) were positive for CRTC1-MAML2 and CRTC3-MAML2 fusion transcripts. However, in the 89 cases of non-mucoepidermoid carcinoma, neither transcript was noted. In the former cases, CRTC1-MAML2 and CRTC3-MAML2 fusions were mutually exclusive. The other fusion, CRTC2-MAML2, was not detected. We confirmed that the clinicopathological features of CRTC1-MAML2-positive mucoepidermoid carcinomas indicated an indolent course. CRTC3-MAML2-positive mucoepidermoid carcinomas also had clinicopathologically favorable features; all cases showed a less advanced clinical stage, negative nodal metastasis, no high-grade tumor histology, and no recurrence or tumor-related death after surgical resection of the tumor. It is interesting to note that patients with CRTC3-MAML2-positive tumors (mean 36 years of age) were significantly younger that those with the CRTC1-MAML2 fusion (55 years) and those with fusion-negative tumors (58 years). In conclusion, CRTC3-MAML2 fusion, which is mutually exclusive with CRTC1-MAML2 fusion and specific to mucoepidermoid carcinoma, may be detected more frequently than previously expected. Mucoepidermoid carcinomas possessing CRTC3-MAML2 fusion may be associated with favorable clinicopathological features and patients may be younger than those with CRTC1-MAML2 fusion or those with no detectable gene fusion.
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Affiliation(s)
- Takahisa Nakayama
- Department of Pathology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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Miyabe S, Okabe M, Nagatsuka H, Hasegawa Y, Inagaki A, Ijichi K, Nagai N, Eimoto T, Yokoi M, Shimozato K, Inagaki H. Prognostic Significance of p27Kip1, Ki-67, and CRTC1-MAML2 Fusion Transcript in Mucoepidermoid Carcinoma: A Molecular and Clinicopathologic Study of 101 Cases. J Oral Maxillofac Surg 2009; 67:1432-41. [DOI: 10.1016/j.joms.2009.03.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2008] [Accepted: 03/08/2009] [Indexed: 01/04/2023]
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Matsubara T, Eimoto T, Okabe M, Miyabe S, Fujiyoshi Y, Matsushita Y, Mizutani J, Yamada S, Otsuka T. Proliferation and apoptosis of tumour cells before and after neoadjuvant therapy for high-grade extremity sarcomas: divergent associations with tumour response and prognosis. Histopathology 2008; 52:706-16. [PMID: 18393971 DOI: 10.1111/j.1365-2559.2008.03015.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS To evaluate proliferation and apoptosis in high-grade sarcomas of the extremities before and after preoperative radio-hyperthermo-chemotherapy (RHC) and to determine the relationship between these parameters and treatment outcomes. METHODS AND RESULTS Pre- and post-RHC specimens of 41 soft tissue and bone tumours were immunohistochemically stained for minichromosome maintenance protein (MCM) 2 and caspase 3 as proliferation and apoptosis markers, respectively, based on a preliminary study comparing them with conventional markers. Indices were calculated as a percentage of positive cells by counting tumour cells in the most frequently labelled areas. MCM2, caspase 3 and MCM2/caspase 3 (growth) indices were 45.3 +/- 21.9%, 4.1 +/- 7.1% and 82.9 +/- 104.5, respectively, in pre-RHC specimens and 35.4 +/- 30.8%, 39.2 +/- 34.6% and 5.3 +/- 11.7, respectively, in post-RHC specimens. Response scores showed positive correlation with pre-RHC MCM2 and post-RHC caspase 3 indices, inverse correlation with post-RHC MCM2 and post-RHC growth indices and no correlation with prognosis. Multivariate analysis revealed high pre-RHC MCM2 and high post-RHC growth indices as significant unfavourable prognostic factors. CONCLUSIONS High proliferative activity in untreated sarcoma may predict good response to neoadjuvant therapy, but poor prognosis, whereas a high growth index, i.e. high proliferation:apoptosis ratio in a post-neoadjuvant therapy tumour specimen may indicate poor response and poor prognosis.
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Affiliation(s)
- T Matsubara
- Department of Pathology, Nagoya City University School of Medicine, Nagoya, Japan
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Okabe M, Miyabe S, Nagatsuka H, Terada A, Hanai N, Yokoi M, Shimozato K, Eimoto T, Nakamura S, Nagai N, Hasegawa Y, Inagaki H. MECT1-MAML2 fusion transcript defines a favorable subset of mucoepidermoid carcinoma. Clin Cancer Res 2007; 12:3902-7. [PMID: 16818685 DOI: 10.1158/1078-0432.ccr-05-2376] [Citation(s) in RCA: 179] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Mucoepidermoid carcinoma is the most common primary malignancy of the salivary gland. Mucoepidermoid carcinoma translocated gene 1-mastermind-like gene family (MECT1-MAML2) gene fusion was identified from a recurring t(11;19)(q21;p13) translocation, which is often the sole cytogenetic alteration in this disease. This fusion transcript has been frequently detected in mucoepidermoid carcinoma and shown to be involved in the transformation of epithelial cells. However, its clinicopathologic significance remains unclear. EXPERIMENTAL DESIGN Seventy-one cases of mucoepidermoid carcinoma and 51 cases of nonmucoepidermoid carcinoma salivary gland tumors (including 26 Warthin tumor cases) were retrospectively analyzed. RNA was extracted from archival materials: histologic paraffin specimens in all cases and cytologic specimens in 10 mucoepidermoid carcinoma cases. The MECT1-MAML2 fusion transcript was detected by a reverse transcription-PCR assay, which can be applied to both histologic and cytologic specimens. The presence of the fusion transcript was correlated with relevant clinicopathologic and survival data of the mucoepidermoid carcinoma patients. RESULTS The MECT1-MAML2 fusion transcript was detected in 27 of the 71 (38%) mucoepidermoid carcinoma cases but not in any case of nonmucoepidermoid carcinoma tumors. The reverse transcription-PCR results showed no difference between histologic and cytologic specimens. Detection of the MECT1-MAML2 fusion transcript was associated with a less advanced clinical stage and a low-grade tumor histology. The presence of the transcript was associated with longer disease-free and overall survivals on univariate analysis and emerged as an independent prognostic factor for longer overall survival on multivariate analysis. CONCLUSIONS The MECT1-MAML2 fusion transcript may be specific to mucoepidermoid carcinoma and associated with a distinct mucoepidermoid carcinoma subset that exhibits favorable clinicopathologic features and an indolent clinical course.
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Affiliation(s)
- Mitsukuni Okabe
- Department of Pathology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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Tamai H, Shioi Y, Yamaguchi H, Okabe M, Wakita S, Mizuki T, Nakayama K, Inokuchi K, Tajika K, Dan K. Treatment of relapsed acute myeloid leukemia with MLL/AF6 fusion after allogeneic hematopoietic stem cell transplantation with gemtuzumab ozogamicin with a long interval followed by donor lymphocyte infusion. Leukemia 2007; 22:1273-4. [DOI: 10.1038/sj.leu.2405029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Untangling the molecular nature of sperm-egg interactions is fundamental if we are to understand fertilization. These phenomena have been studied for many years using biochemical approaches such as antibodies and ligands that interact with sperm or with eggs and their vestments. However, when homologous genetic recombination techniques were applied, most of the phenotypic factors of the gene-manipulated animals believed "essential" for fertilization were found to be dispensable. Of course, all biological systems contain redundancies and compensatory mechanisms, but as a whole the old model of fertilization clearly requires significant modification. In this review, we use the results of gene manipulation experiments in animals to propose the basis for a new vision.
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Affiliation(s)
- M Okabe
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Yamadaoka 3-1, Suita, Osaka, 565-0871, Japan.
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Hosen N, Shirakata T, Nishida S, Yanagihara M, Tsuboi A, Kawakami M, Oji Y, Oka Y, Okabe M, Tan B, Sugiyama H, Weissman IL. The Wilms’ tumor gene WT1-GFP knock-in mouse reveals the dynamic regulation of WT1 expression in normal and leukemic hematopoiesis. Leukemia 2007; 21:1783-91. [PMID: 17525726 DOI: 10.1038/sj.leu.2404752] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The Wilms' tumor gene WT1 is overexpressed in most of human leukemias regardless of disease subtypes. To characterize the expression pattern of WT1 during normal and neoplastic hematopoiesis, we generated a knock-in reporter green fluorescent protein (GFP) mouse (WT1(GFP/+)) and assayed for WT1 expression in normal and leukemic hematopoietic cells. In normal hematopoietic cells, WT1 was expressed in none of the long-term (LT) hematopoietic stem cells (HSC) and very few (<1%) of the multipotent progenitor cells. In contrast, in murine leukemias induced by acute myeloid leukemia 1 (AML1)/ETO+TEL/PDGFbetaR or BCR/ABL, WT1 was expressed in 40.5 or 38.9% of immature c-kit(+)lin(-)Sca-1(+) (KLS) cells, which contained a subset, but not all, of transplantable leukemic stem cells (LSCs). WT1 expression was minimal in normal fetal liver HSCs and mobilized HSCs, both of which are stimulated for proliferation. In addition, overexpression of WT1 in HSCs did not result in proliferation or expansion of HSCs and their progeny in vivo. Thus, the mechanism by which expansion of WT1-expressing cells occurs in leukemia remains unclear. Nevertheless, our results demonstrate that the WT1(GFP/+) mouse is a powerful tool for analyzing WT1-expressing cells, and they highlight the potential of WT1, as a specific therapeutic target that is expressed in LSCs but not in normal HSCs.
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MESH Headings
- Animals
- Bone Marrow
- Cell Proliferation
- Colony-Forming Units Assay
- Disease Models, Animal
- Female
- Gene Expression Regulation, Neoplastic
- Genes, Wilms Tumor
- Green Fluorescent Proteins/genetics
- Green Fluorescent Proteins/metabolism
- Hematopoiesis
- Hematopoietic Stem Cells/cytology
- Hematopoietic Stem Cells/metabolism
- Hematopoietic Stem Cells/pathology
- Humans
- Immunophenotyping
- Lentivirus
- Leukemia, Experimental/genetics
- Leukemia, Experimental/metabolism
- Leukemia, Experimental/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Male
- Mice
- Mice, Inbred C57BL
- Neoplastic Stem Cells/pathology
- Transfection
- WT1 Proteins/genetics
- WT1 Proteins/physiology
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Affiliation(s)
- N Hosen
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.
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Inami M, Inokuchi K, Okabe M, Kosaka F, Mitamura Y, Yamaguchi H, Dan K. Polycythemia associated with the JAK2V617F mutation emerged during treatment of chronic myelogenous leukemia. Leukemia 2007; 21:1103-4. [PMID: 17301812 DOI: 10.1038/sj.leu.2404591] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Murayama K, Kimura T, Tarutani M, Tomooka M, Hayashi R, Okabe M, Nishida K, Itami S, Katayama I, Nakano T. Akt activation induces epidermal hyperplasia and proliferation of epidermal progenitors. Oncogene 2007; 26:4882-8. [PMID: 17297448 DOI: 10.1038/sj.onc.1210274] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Various common signaling pathways maintain tissue stem cells, including Notch and Wnt/beta-catenin signals. Phosphoinositide-3 kinase (PI3K)/Akt signaling regulates the 'stemness' of several stem cells in culture, specifically in maintaining embryonic stem and neural stem cells, and in deriving embryonic germ cells from primordial germ cells. We examined the effect of Akt signaling in epidermal cells in transgenic mice expressing an Akt-Mer fusion protein whose kinase activity was conditionally activated by treatment with 4-hydroxytamoxifen (4OHT). The topical application of 4OHT to adult skin of the transgenic mice induced new hair growth in resting phase follicles. In addition, the mice showed hyperplasia in interfollicular epidermis (IFE) and hair follicles, which was presumably caused by the extensive proliferation of keratinocytes in basal layer of IFE and outer root sheath of hair follicles, respectively. The progenitor cell population increased consistently in 4OHT-treated transgenic mice. Our results show that PI3K/Akt signaling induces epidermal hyperplasia and proliferation of epidermal progenitors.
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Affiliation(s)
- K Murayama
- Department of Pathology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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Abstract
Mucosa-associated lymphoid tissue (MALT) lymphoma presentation in the oral cavity is very rare. Reported herein is a case of intraoral MALT lymphoma of the minor salivary gland in a 70-year-old woman with Sjogren's syndrome. Unexpectedly, a spontaneous clinically and histologically confirmed regression occurred 1 month after the tumor biopsy for diagnosis. Considering that salivary MALT lymphoma is associated with Sjogren's syndrome and that the chronic inflammation caused by Sjogren's syndrome persisted, it is hypothesized that the tumor clone might be present in the regressed lesion. Minimal residual tumor clone identical with the primary lesion was detected using the polymerase chain reaction (PCR) clonality assay for immunoglobulin heavy chain gene (IgH) rearrangement. No recurrence was clinically evident 38 months after the diagnosis. Spontaneous regression of MALT lymphoma should be examined at the molecular level in addition to clinical and histological evaluations. When minimal residual disease is detected, close follow up is necessary for early detection of the tumor relapse.
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MESH Headings
- Aged
- Clone Cells/pathology
- DNA, Neoplasm/analysis
- Female
- Gene Rearrangement, B-Lymphocyte, Heavy Chain/genetics
- Gene Rearrangement, B-Lymphocyte, Heavy Chain/immunology
- Humans
- Lymphoma, B-Cell, Marginal Zone/genetics
- Lymphoma, B-Cell, Marginal Zone/immunology
- Lymphoma, B-Cell, Marginal Zone/pathology
- Neoplasm Regression, Spontaneous/genetics
- Neoplasm Regression, Spontaneous/immunology
- Neoplasm Regression, Spontaneous/pathology
- Neoplasm, Residual/genetics
- Neoplasm, Residual/immunology
- Neoplasm, Residual/pathology
- Oncogene Proteins, Fusion/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Salivary Gland Neoplasms/genetics
- Salivary Gland Neoplasms/immunology
- Salivary Gland Neoplasms/pathology
- Salivary Glands, Minor/immunology
- Salivary Glands, Minor/pathology
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Affiliation(s)
- Hidenori Sakuma
- Department of Pathology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Watanabe S, Umehara H, Murayama K, Okabe M, Kimura T, Nakano T. Activation of Akt signaling is sufficient to maintain pluripotency in mouse and primate embryonic stem cells. Oncogene 2006; 25:2697-707. [PMID: 16407845 DOI: 10.1038/sj.onc.1209307] [Citation(s) in RCA: 266] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Embryonic stem (ES) cells can self-renew indefinitely without losing their differentiation ability to any cell types. Phosphoinositide-3 kinase (PI3K)/Akt signaling plays a pivotal role in various stem cell systems, including the formation of embryonic germ (EG) cells from primordial germ cells and self-renewal of neural stem cells. Here, we show that myristoylated, active form of Akt (myr-Akt) maintained the undifferentiated phenotypes in mouse ES cells without the addition of leukemia inhibitory factor (LIF). The effects of myr-Akt were reversible, because LIF dependence and pluripotent differentiation activity were restored by the deletion of myr-Akt. In addition, myr-Akt-Mer fusion protein, whose enzymatic activity is controlled by 4-hydroxy-tamoxifen, also maintained the pluripotency of not only mouse but also cynomolgus monkey ES cells. These results clearly demonstrate that Akt signaling sufficiently maintains pluripotency in mouse and primate ES cells, and support the notion that PI3K/Akt signaling axis regulates 'stemness' in a broad spectrum of stem cell systems.
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Affiliation(s)
- S Watanabe
- Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan
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Inoue N, Ikawa M, Isotani A, Okabe M. 1140406603 The immunoglobulin superfamily protein Izumo is required for sperm to fuse with eggs. Am J Reprod Immunol 2006. [DOI: 10.1111/j.1600-0897.2006.00383_3.x] [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: 11/27/2022] Open
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Sakurai F, Kawabata K, Koizumi N, Inoue N, Okabe M, Yamaguchi T, Hayakawa T, Mizuguchi H. Adenovirus serotype 35 vector-mediated transduction into human CD46-transgenic mice. Gene Ther 2006; 13:1118-26. [PMID: 16541121 DOI: 10.1038/sj.gt.3302749] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We previously demonstrated that systemic administration of adenovirus serotype 35 (Ad35) vectors to mice does not mediate efficient transduction in organs, probably because expression of the mouse analog of the subgroup B Ad receptor, human CD46 (membrane cofactor protein), is limited to the testis. Here, we describe the in vitro and in vivo transduction characteristics of Ad35 vectors by using homozygous and hemizygous human CD46-transgenic (CD46TG) mice, which ubiquitously express human CD46. An Ad35 vector more efficiently transduced the primary dendritic cells and macrophages prepared from CD46TG mice than those from wild-type mice. In vivo transduction experiments demonstrated that CD46TG mice are more susceptible to Ad35 vector-mediated in vivo transduction than are wild-type mice. In particular, homozygous CD46TG mice, which express higher levels of CD46 in the organs than hemizygous CD46TG mice, tend to exhibit higher transduction efficiencies after intraperitoneal administration than hemizygous CD46TG mice. Intraperitoneal administration of Ad35 vectors resulted in efficient transduction into the mesothelial cells of the peritoneal organs in homozygous CD46TG mice. These results indicate that an Ad35 vector recognizes human CD46 as a cellular receptor in CD46TG mice. However, the in vivo transduction efficiencies of Ad35 vectors in CD46TG mice are much lower than those of conventional Ad5 vectors in wild-type mice.
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Affiliation(s)
- F Sakurai
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Yoshida M, Okabe M, Eimoto T, Shimizu S, Ueda-Otsuka K, Okamoto M, Ishii G, Ueda R, Chan JKC, Nakamura S, Inagaki H. ImmunoglobulinVH genes in thymic MALT lymphoma are biased toward a restricted repertoire and are frequently unmutated. J Pathol 2006; 208:415-22. [PMID: 16353132 DOI: 10.1002/path.1889] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Thymic MALT lymphoma shows certain distinctive features among MALT lymphomas, such as expression of IgA isotype, consistent lack of API2-MALT1 gene fusion, and very strong association with autoimmune disease, especially Sjogren's syndrome. To help clarify the nature of the clonal lymphoid infiltrates, we analysed the usage and somatic hypermutation of the Ig heavy chain variable region (V(H)) genes in nine different cases. The V(H) rearrangement was potentially functional in all cases and was restricted to the V(H)3 family. V(H) usage was biased toward V(H)3-30 (five cases) and V(H)3-23 (three cases) segments, which have both been frequently expressed by autoimmune B cells. Somatic hypermutation was absent in five cases. Fewer than the expected replacement mutations were found in the framework regions in two cases, indicating a negative antigen selection pressure. Ongoing mutation was absent in all cases. D segment usage was varied, whereas J(H) segment usage was restricted to J(H)4. The observed patterns of V(H) usage and mutations suggested that specific antigens may play a pathologically relevant role in the genesis or progression of thymic MALT lymphoma.
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MESH Headings
- Aged
- Amino Acid Sequence
- Antigens/immunology
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/immunology
- Complementarity Determining Regions/genetics
- DNA Mutational Analysis
- Female
- Gene Rearrangement, B-Lymphocyte, Heavy Chain
- Genes, Immunoglobulin Heavy Chain
- Humans
- Lupus Erythematosus, Systemic/genetics
- Lupus Erythematosus, Systemic/immunology
- Lymphoma, B-Cell, Marginal Zone/genetics
- Lymphoma, B-Cell, Marginal Zone/immunology
- Male
- Middle Aged
- Molecular Sequence Data
- Reverse Transcriptase Polymerase Chain Reaction
- Sequence Analysis, DNA
- Sequence Homology
- Thymus Neoplasms/genetics
- Thymus Neoplasms/immunology
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Affiliation(s)
- Megumi Yoshida
- Department of Pathology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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43
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Futamura T, Ishihara H, Tamura T, Yasutake T, Huang G, Kojima M, Okabe M. Kojic acid production in an airlift bioreactor using partially hydrolyzed raw corn starch. J Biosci Bioeng 2005; 92:360-5. [PMID: 16233111 DOI: 10.1263/jbb.92.360] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2001] [Accepted: 07/25/2001] [Indexed: 11/17/2022]
Abstract
In a culture of Aspergillus oryzae MK-107-39 in a 3-l airlift bioreactor, kojic acid was not produced when glucose/wheat germ medium (GM1) was used. However, when a jar fermentor was used, the kojic acid yield was high. A suitable medium for culture in an airlift bioreactor consisting of partially hydrolyzed corn starch and a small amount of corn steep liquor (CSL) (SM1) was selected. In the cultivation in the airlift bioreactor using SM1, nearly 40 g/l of kojic acid was produced, which was the same as the amount produced in the jar fermentor containing GM1. The optimum aeration rate for the airlift bioreactor was 2.0 vvm (0.66 cm/s of superficial linear velocity (Vs)). The cost of SM1 using the airlift bioreactor was reduced to 40% that of GM1 using the jar fermentor. Furthermore, the energy cost of kojic acid production using SM1 in the airlift bioreactor was less than one-fourth of that for the jar fermentor using GM1.
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Affiliation(s)
- T Futamura
- United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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44
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Kahar P, Iwata T, Hiraki J, Park EY, Okabe M. Enhancement of epsilon-polylysine production by Streptomyces albulus strain 410 using pH control. J Biosci Bioeng 2005; 91:190-4. [PMID: 16232973 DOI: 10.1263/jbb.91.190] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2000] [Accepted: 11/21/2000] [Indexed: 11/17/2022]
Abstract
The enhancement of epsilon-poly-l-lysine (epsilon-PL) production by Streptomyces albulus strain no. 410 (S410) by means of a pH control strategy was investigated. S140 cells produce epsilon-PL at a high concentration if the culture pH remains at about 4.0; however, if it shifts to higher than 4.0, the accumulated epsilon-PL is depolymerized. We therefore suggest a pH control strategy for cell growth and epsilon-PL production aimed at increasing the amount of epsilon-PL produced. The cultivation was divided into two control phases. In phase I, cell growth was accelerated by maintaining the pH at higher than 5.0; in phase II, epsilon-PL production was increased by maintaining the pH at about 4.0. To avoid an increase in the pH during phase II as a result of glucose depletion, the glucose concentration was kept at around 10 g/l by glucose feeding. This control strategy enhanced the production of epsilon-PL to 48.3 g/l from 5.7 g/l in the case of batch culture.
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Affiliation(s)
- P Kahar
- United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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45
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Jia S, Chen G, Kahar P, Choi DB, Okabe M. Effect of soybean oil on oxygen transfer in the production of tetracycline with an airlift bioreactor. J Biosci Bioeng 2005; 87:825-7. [PMID: 16232563 DOI: 10.1016/s1389-1723(99)80162-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/1999] [Accepted: 03/15/1999] [Indexed: 10/18/2022]
Abstract
Corn starch and soybean oil are suitable carbon sources for the production of tetracycline by Streptomyces aureofacience CG-1. However, it could not produce more than 6 g/l of tetracycline even if initial corn starch concentration was increased to more than 100 g/l. It was confirmed by shaking flask experiments that the k(L)a in a mixture of 2% soybean oil in water was four folds compared with that without soybean oil. With the addition of soybean oil to the starch medium in a shaking flask, tetracycline production was significantly improved. By scaling-up to a 5.5-l airlift bioreactor from 500-ml Erlenmeyer flask, more than 10 g/l of tetracycline was produced with the addition of 60 g/l of soybean oil to the medium containing 100 g/l of corn starch. The dissolved oxygen level in the airlift bioreactor containing soybean oil was higher than that without soybean oil. This suggests that soybean oil is not only a suitable carbon source but is also a surface-active agent which may accelerate the oxygen transfer. This may lead to the possibility of the enhanced production of tetracycline at a low cost in airlift bioreactor.
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Affiliation(s)
- S Jia
- Department of Biochemical Engineering, Tianjin University of Light Industry, 300222 Tianjin, China
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46
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Park EY, Saito T, Dojima T, Horiba M, Toriyama M, Okabe M. Visualization of a recombinant gene protein in the baculovirus expression vector system using confocal scanning laser microscopy. J Biosci Bioeng 2005; 87:756-61. [PMID: 16232550 DOI: 10.1016/s1389-1723(99)80149-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/1998] [Accepted: 02/26/1999] [Indexed: 11/28/2022]
Abstract
Expression of the recombinant protein beta-galactosidase in the Spodoptera frugiperda Sf-9 insect cell line infected by the Autographa californica nuclear polyhedrosis virus expressing beta-galactosidase (AcNPV-betagal) was visualized using confocal scanning laser microscopy with fluorescent staining of both the recombinant protein and the cell nucleus. The average size of the insect cells and the intracellular DNA concentration both increased markedly, respectively reading 3.8- and 2.3-fold the values before infection. The average beta-galactosidase activity began to increase at 20-24 h post infection and finally reached 1.9 x 10(4) units/ml. As the post infection time increased, the stained nucleus images expanded and spread broadly. Beta-galactosidase was first identified by fluorescent staining at 12 h post-infection, filled the cell at 27 h, began to be released at 36 h, and finally spread out of the cell. The locations of the nucleus and expressed beta-galactosidase were identified from computerized tomograms and 3-dimensional images.
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Affiliation(s)
- E Y Park
- Laboratory of Biotechnology, Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
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Futamura T, Okabe M, Tamura T, Toda K, Matsunobu T, Park YS. Improvement of production of Kojic acid by a mutant strain Aspergillus oryzae, MK107-39. J Biosci Bioeng 2005; 91:272-6. [PMID: 16232988 DOI: 10.1263/jbb.91.272] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2000] [Accepted: 12/14/2000] [Indexed: 11/17/2022]
Abstract
A strain designated MK107-39, producing kojic acid with a high yield, was obtained by a new screening method using a 96-well microtiter plate after NTG treatment of Aspergillus oryze ATCC 22788. The amount of kojic acid produced by strain MK107-39 in a shaking flask was 28 g/l from 100 g/l of glucose, which was 7.7-times higher than that produced by parent strain. The kojic acid yields per cell and the amount of glucose consumed were 9.8 and 6.0-times higher than those of the parent strain. Based on differences in the use of carbohydrates and organic acids, it seems that strain MK107-39 has some mutation regarding carbohydrate metabolism. By customizing the medium and culture conditions such as glucose concentration, dissolved oxygen concentration and pH of the fermentation broth, more than 110 g/l of kojic acid was produced in a 3-l jar fermentor. Upon scale up to a 600-l pilot fermentor, enhanced production of kojic acid was successfully achieved. The kojic acid yield from glucose consumed, Y(P/S), was 0.43 (g/g) in this pilot plant-scale fermentation.
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Affiliation(s)
- T Futamura
- United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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48
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Takino H, Okabe M, Li C, Ohshima K, Yoshino T, Nakamura S, Ueda R, Eimoto T, Inagaki H. p16/INK4a gene methylation is a frequent finding in pulmonary MALT lymphomas at diagnosis. Mod Pathol 2005; 18:1187-92. [PMID: 15832193 DOI: 10.1038/modpathol.3800400] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
p16/INK4a gene alterations have been associated with tumor progression in lymphoid malignancies. However, their significance in mucosa-associated lymphoid tissue (MALT) lymphoma is unclear. We investigated p16 gene methylation and mutation in a large series of untreated cases of pulmonary MALT lymphoma and diffuse large B-cell lymphoma (DLBL), and correlated p16 gene alterations with a MALT lymphoma-specific API2-MALT1 fusion and the clinicopathologic features of MALT lymphoma. The API2-MALT1 fusion was detected by multiplex reverse transcription polymerase chain reaction in 25/60 (42%) cases of MALT lymphoma, but none of 11 DLBLs. Methylation-sensitive single-strand conformation analysis showed that p16 gene methylation was frequently detected in 36/60 (60%) cases of MALT lymphoma. The gene was similarly methylated in DLBL cases (6/11, 55%). A p16 gene mutation was found in one (p16 gene-methylation) of 44 MALT lymphomas and in none of six diffuse large B-cell lymphomas. Statistical analysis showed that the p16 gene methylation status did not correlate with API2-MALT1 fusion or any of the clinicopathologic factors including serum LDH, clinical stage, and increased large cells. These findings suggest that p16 methylation is not associated with tumor progression, but may be an early event in MALT lymphomagenesis that might be maintained through the progression of the tumor.
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Affiliation(s)
- Hisashi Takino
- Department of Pathology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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49
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Inagaki H, Li C, Okabe M, Nishikawa M, Nishikawa AM, Iida S, Ueda R. Detection of API2-MALT1 Fusion Transcripts in Cytologic Specimens of Patients with Pulmonary Mucosa-Associated Lymphoid Tissue Lymphoma. Int J Hematol 2005; 82:59-62. [PMID: 16105761 DOI: 10.1532/ijh97.05016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Mucosa-associated lymphoid tissue (MALT) lymphoma constitutes up to 90% of primary pulmonary lymphomas, but its diagnosis is often difficult. API2-MALT1 fusion is specific to MALT lymphoma and is detected in nearly half of the pulmonary cases. Cytologic examinations have played a pivotal role in the diagnosis of pulmonary tumors; however, cytologic specimens have only infrequently been used for molecular studies. In this study, we performed a multiplex reverse transcription-polymerase chain reaction (RT-PCR) assay to detect the API2-MALT1 fusion transcript in archival cytologic specimens used as RNA sources. We studied 3 pulmonary MALT lymphoma cases that were positive for the fusion gene as detected with RNA extracted from diagnostic histologic specimens. In 1 case, a conventional PCR clonality assay for the immunoglobulin heavy chain gene rearrangement failed to detect the monoclonality. In all 3 cases, the fusion transcript was successfully detected in the cytologic specimens of sputum, bronchoalveolar lavage fluid, bone marrow smears, and pleural effusions. This finding suggests that such specimens can be used as RNA sources in multiplex RT-PCR assays for the API2-MALT1 fusion transcript. The detection of API2-MALT1 fusion as carried out with these specimens would be useful as an ancillary assay for the diagnosis, staging, and follow-up of pulmonary MALT lymphoma.
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MESH Headings
- Aged
- Aged, 80 and over
- Bronchoalveolar Lavage Fluid/cytology
- Cytological Techniques
- Humans
- Lymphoma, B-Cell, Marginal Zone/diagnosis
- Lymphoma, B-Cell, Marginal Zone/genetics
- Lymphoma, B-Cell, Marginal Zone/physiopathology
- Male
- Middle Aged
- Oncogene Proteins, Fusion/analysis
- Oncogene Proteins, Fusion/biosynthesis
- Oncogene Proteins, Fusion/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Sensitivity and Specificity
- Specimen Handling
- Sputum/cytology
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Affiliation(s)
- Hiroshi Inagaki
- Department of Pathology, Graduate School of Medical Sciences, Nagoya City University, Nagoya.
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50
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Abstract
OBJECTIVES Cone beam CT (CBCT) requires a two-dimensional X-ray detector. In the several CBCT systems developed for dental imaging, detection has been by the combination of an X-ray image intensifier and charge-coupled device (CCD) camera. In this paper, we propose a new CBCT system in which the detector is of the flat-panel type and evaluate its performance in dental imaging. METHODS We developed a prototype CBCT that has a flat-panel-type detector. The detector consists of a CsI scintillator screen and a photosensor array. First, the flat panel detector and image intensifier detector were compared in terms of the signal-to-noise ratio (SNR) of projected images. We then used these data and a theoretical formula to evaluate noise in reconstructed images. Second, reconstructed images of a bar pattern phantom were obtained as a way of evaluating the spatial resolution. Then, reconstructed images of a skull phantom were obtained. RESULTS The SNR of the developed system was 1.6 times as high as that of a system with an image intensifier detector of equal detector pitch. The system was capable of resolving a 0.35 mm pattern and its field of view almost completely encompassed that of an image intensifier detector which is used in dentomaxillofacial imaging. The fine spatial resolution of the detector led to images in which the structural details of a skull phantom were clearly visible. CONCLUSIONS The system's isotropically fine resolution will lead to improved precision in dental diagnosis and surgery. The next stage of our research will be the development of a flat panel detector system with a high frame acquisition rate.
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Affiliation(s)
- R Baba
- Central Research Laboratory, Hitachi, Ltd., Tokyo, Japan.
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