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Kitazono I, Akahane T, Yokoyama S, Kubota E, Nishida-Kirita Y, Noguchi H, Murakami M, Yanazume S, Kobayashi H, Tanimoto A. Cervical Cytology Preserves Histologically Detected Surface Epithelial Slackening, Unique to the POLE Mutation-subtype in Endometrial Cancer. In Vivo 2024; 38:321-333. [PMID: 38148087 PMCID: PMC10756481 DOI: 10.21873/invivo.13442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND/AIM Among the four genomic subtypes of endometrial cancer, distinguishing between the DNA polymerase epsilon mutation (POLEmut) and no specific molecular profile (NSMP) subtypes requires genomic profiling owing to the lack of surrogate immunohistochemical markers. We have previously found that, histologically, the POLEmut-subtype exhibits surface epithelial slackening (SES). Therefore, to improve subtype identification, we aimed to extract cytological features corresponding to SES in POLEmut-subtype cervical cytology specimens. MATERIALS AND METHODS We analyzed 104 endometrial cancer cervical cytology specimens, with integrative diagnosis confirmation via histology, immunohistochemistry, and genomic profiling. Cytological features were evaluated for the presence of atypical glandular cells, atypical cell appearance in single cells and clusters, and cytological SES and the presence of tumor-infiltrating inflammatory cells in clusters. RESULTS Based on cervical cytology, the POLEmut- and p53mut-subtypes exhibited more frequent atypical cells in smaller clusters, giant tumor cells, and cytological SES patterns than the NSMP-subtype. Tumor-infiltrating lymphocytes were frequent in the POLEmut- and mismatch repair-deficient subtypes. CONCLUSION Histologically-detected SES as well as other endometrial cancer features may be preserved in the atypical cell clusters observed in cervical cytology specimens. Cytological detection of SES and of smaller clusters of atypical cells and inflammatory cells with moderate atypia are suggestive of POLEmut-subtype. Integrative diagnosis including genomic profiling remains critical for diagnostic confirmation.
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Affiliation(s)
- Ikumi Kitazono
- Department of Surgical Pathology, Kagoshima University Hospital, Kagoshima, Japan
| | - Toshiaki Akahane
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Emi Kubota
- Department of Surgical Pathology, Kagoshima University Hospital, Kagoshima, Japan
| | | | - Hirotsugu Noguchi
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Miki Murakami
- Department of Surgical Pathology, Kagoshima University Hospital, Kagoshima, Japan
| | - Shintaro Yanazume
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Hiroaki Kobayashi
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Akihide Tanimoto
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan;
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
- Center for the Research of Advanced Diagnosis and Therapy of Cancer, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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2
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Yokoyama S, Matsuo K, Tanimoto A. Methylation-Specific Electrophoresis. Methods Mol Biol 2024; 2763:259-268. [PMID: 38347417 DOI: 10.1007/978-1-0716-3670-1_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Methylation of CpG sites in the promoter region of genomic DNA is an important epigenetic modification that plays a critical role in gene regulation, particularly in gene silencing. Epigenetic abnormalities, along with genetic alterations, are implicated in carcinogenesis and cancer progression. Numerous studies have investigated the role of epigenetics in cancer using various tools to assess DNA methylation. However, conventional analysis methods for DNA methylation require a large amount of DNA but lack higher sensitivity, making them unsuitable for analysis of samples with high heterogeneity, such as tumor tissues. In this study, we introduce a novel electrophoresis method named "methylation-specific electrophoresis (MSE)," which utilizes a denaturing gradient acrylamide gel. We demonstrate the applicability of the MSE method for DNA methylation analysis of the mucin gene as an example.
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Affiliation(s)
- Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate school of Medical and Dental Sciences, Kagoshima, Japan.
| | - Kei Matsuo
- Department of Pathology, Kagoshima University Graduate school of Medical and Dental Sciences, Kagoshima, Japan
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate school of Medical and Dental Sciences, Kagoshima, Japan
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3
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Tanaka Y, Ota R, Hirata A, Yokoyama S, Nakagawa C, Uno T, Hosomi K. Effect of baseline urinary glucose levels on the relationship between sodium-glucose cotransporter 2 inhibitors and serum uric acid in Japanese patients with type 2 diabetes mellitus. Pharmazie 2023; 78:238-244. [PMID: 38178282 DOI: 10.1691/ph.2023.3602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
In patients with type 2 diabetes mellitus (T2DM), controlling serum uric acid (SUA) and blood glucose levels is important. Moreover, sodium-glucose cotransporter 2 (SGLT2) inhibitors decrease SUA levels by accelerating urinary uric acid excretion. We investigated the effect of baseline urinary glucose levels on the relationship between SGLT2 inhibitors and SUA levels. We conducted a retrospective observational study using the electronic medical records of patients with T2DM of Kindai University Nara Hospital (April 2013 to March 2022). We divided the patients into two groups according to their baseline urinary glucose levels: the N-UG group, which included patients with negative urinary glucose strip test results (-), and the P-UG group, which included patients with positive urinary glucose strip test results (± or more). The changes in SUA levels before and after SGLT2 inhibitor administration were investigated. For comparison, the changes in SUA levels before and after the prescription of antidiabetic agents, excluding SGLT2 inhibitors, were also investigated. Our results revealed that SGLT2 inhibitors significantly decreased the SUA levels in patients in the N-UG group but tended to decrease its levels in those in the P-UG group. Regardless of the urinary glucose status at baseline, the administration of SGLT2 inhibitors may be useful for patients with T2DM to prevent the complications of hyperuricemia.
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Affiliation(s)
- Y Tanaka
- Division of Drug Informatics, School of Pharmacy, Kindai University, Osaka; Department of Pharmacy , Kindai University Nara Hospital, Nara, Japan
| | - R Ota
- Department of Pharmacy, Kindai University Nara Hospital, Nara, Japan
| | - A Hirata
- Department of Pharmacy, Kindai University Nara Hospital, Nara, Japan
| | - S Yokoyama
- Division of Drug Informatics, School of Pharmacy, Kindai University, Osaka
| | - C Nakagawa
- Division of Drug Informatics, School of Pharmacy, Kindai University, Osaka; Department of Pharmacy , Kindai University Nara Hospital, Nara, Japan
| | - T Uno
- Division of Drug Informatics, School of Pharmacy, Kindai University, Osaka
| | - K Hosomi
- Division of Drug Informatics, School of Pharmacy, Kindai University, Osaka
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Kodera M, Nakamura K, Ezaki T, Suzuki T, Yokoyama S. Quantitative assessment of urinary equol levels, equol-producing bacteria, and the faecal microbiota in healthy Japanese individuals. Benef Microbes 2023; 14:445-458. [PMID: 38656099 DOI: 10.1163/18762891-20230038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/22/2023] [Indexed: 04/26/2024]
Abstract
Equol (4',7-isoflavandiol) has attracted considerable attention for its potential efficacy in treating hormonal diseases. In this study we collected samples from healthy Japanese individuals (n = 91) to observe the relationship between the abundance of equol-producing bacteria in their faeces and the concentration of equol in their urine. Quantitative polymerase chain reaction (qPCR) targeting the dihydrodaidzein reductase gene (dhdr) was used to detect equol-producing bacteria. Equol producers, who were defined as individuals with >1000 nmol/l equol in their urine, exhibited 4-8 log10 copies of dhdr/g faeces of equol-producing bacteria. We assessed the accuracy of these findings by determining the rate of correspondence between possessing equol-producing bacteria and producing urinary equol. Of the 91 participants, 33 were found to be positive for both equol-producing bacteria and urinary equol, 52 were negative for both, one was positive for equol-producing bacteria and negative for urinary equol, and five were negative for equol-producing bacteria and positive for urinary equol. The sensitivity and specificity of the qPCR for detecting equol-producing bacteria were 86.8% and 98.1%, respectively. On the whole, the presence of equol-producing bacteria and urinary equol displayed 93.4% concordance, with a kappa coefficient of 0.862. No apparent correlation was observed between dhdr copy number in the faeces and urinary equol concentrations. Analysis of the faecal microbiota showed that alpha diversity indices (OTU, ACE, Chao1, Shannon) were significantly higher in equol producers. Specifically, the relative abundance of phylum Pseudomonadota was increased in non-equol producers, while abundance of genus Alistipes, Barnesiella, Butyricimonas, Odoribacter, and Ruminococcus, which produce short chain fatty acids and/or hydrogen, were only observed in equol producers. These results suggest that a certain amount of equol-producing bacteria must be present in the intestine to produce detectable levels of equol, and that equol productivity might be affected by other components of the microbiota.
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Affiliation(s)
- M Kodera
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Gifu Prefectural Research Institute for Food Science, 1-1 Yanagido, Gifu 501-1112, Japan
| | - K Nakamura
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - T Ezaki
- Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan
| | - T Suzuki
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - S Yokoyama
- Gifu Prefectural Research Institute for Food Science, 1-1 Yanagido, Gifu 501-1112, Japan
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Ohno Y, Nakatani M, Ito T, Matsui Y, Ando K, Suda Y, Ohashi K, Yokoyama S, Goto K. Activation of Lactate Receptor Positively Regulates Skeletal Muscle Mass in Mice. Physiol Res 2023; 72:465-473. [PMID: 37795889 PMCID: PMC10634564 DOI: 10.33549/physiolres.935004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 05/23/2023] [Indexed: 01/05/2024] Open
Abstract
G protein-coupled receptor 81 (GPR81), a selective receptor for lactate, expresses in skeletal muscle cells, but the physiological role of GPR81 in skeletal muscle has not been fully elucidated. As it has been reported that the lactate administration induces muscle hypertrophy, the stimulation of GPR81 has been suggested to mediate muscle hypertrophy. To clarify the contribution of GPR81 activation in skeletal muscle hypertrophy, in the present study, we investigated the effect of GPR81 agonist administration on skeletal muscle mass in mice. Male C57BL/6J mice were randomly divided into control group and GPR81 agonist-administered group that received oral administration of the specific GPR81 agonist 3-Chloro-5-hydroxybenzoic acid (CHBA). In both fast-twitch plantaris and slow-twitch soleus muscles of mice, the protein expression of GPR81 was observed. Oral administration of CHBA to mice significantly increased absolute muscle weight and muscle weight relative to body weight in the two muscles. Moreover, both absolute and relative muscle protein content in the two muscles were significantly increased by CHBA administration. CHBA administration also significantly upregulated the phosphorylation level of p42/44 extracellular signal-regulated kinase-1/2 (ERK1/2) and p90 ribosomal S6 kinase (p90RSK). These observations suggest that activation of GRP81 stimulates increased the mass of two types of skeletal muscle in mice in vivo. Lactate receptor GPR81 may positively affect skeletal muscle mass through activation of ERK pathway.
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Affiliation(s)
- Y Ohno
- Faculty of Rehabilitation and Care, Seijoh University, Tokai, Japan.
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Higashi Y, Nakamura K, Takaoka R, Tani M, Noma Y, Mori K, Yamashiro K, Yokoyama S, Hamada T, Sugiura T. Identification of Neck Lymph Node Metastasis-Specific microRNA-Implication for Use in Monitoring or Prediction of Neck Lymph Node Metastasis. Cancers (Basel) 2023; 15:3769. [PMID: 37568586 PMCID: PMC10417354 DOI: 10.3390/cancers15153769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 08/13/2023] Open
Abstract
MicroRNAs (miRNAs) have attracted attention as non-invasive cancer biomarkers in various cancers; however, they have not been adequately investigated in oral squamous cell carcinoma (OSCC). This study investigated the diagnostic performance of serum-derived miRNAs at initial diagnosis for primary neck lymph node metastasis and the predictive performance for late neck lymph node metastasis based on long-term (up to approximately 8 years) follow-up of patients with OSCC. The expression of miRNAs in 40 patients with OSCC was quantified using real-time PCR (qPCR), and a comprehensive statistical analysis of the correlation of miRNA expression for primary and late neck lymph node metastases was performed. For the diagnosis of primary neck lymph node metastases, miR-423 and miR-125 were accurate. The miRNA index for primary metastasis diagnosis (miR-PM) calculated by regression analysis showed high diagnostic accuracy. The miR-5100 was useful for predicting late neck lymph node metastases. The miRNA index for late metastasis prediction (miR-LM) calculated using regression analysis showed high prediction accuracy. MiRNAs were useful for diagnosing primary neck lymph node metastases in OSCC and predicting late neck lymph node metastases. It may help to consider individualized treatment, including follow-up, surgical methods, and postoperative management.
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Grants
- 18H03006(to Tsuyoshi Sugiura), 21H03143(to Tsuyoshi Sugiura),19K10362 (to Tomofumi Hamada), and 17K17280 (to Kodai Nakamura) Grants-in-Aid 18H03006(to Tsuyoshi Sugiura), 21H03143(to Tsuyoshi Sugiura),19K10362 (to Tomofumi Hamada), and 17K17280 (to Kodai Nakamura) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan
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Affiliation(s)
- Yutaro Higashi
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
- Division of Oral and Maxillofacial Oncology and Surgical Sciences, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| | - Kodai Nakamura
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
| | - Ryota Takaoka
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
| | - Mika Tani
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
| | - Yusaku Noma
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
| | - Kazuki Mori
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
| | - Kota Yamashiro
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan;
| | - Tomofumi Hamada
- Department of Oral & Maxillofacial Surgery, Hakuaikai Medical Cooperation Sagara Hospital, Kagoshima 892-0833, Japan
| | - Tsuyoshi Sugiura
- Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8544, Japan; (Y.H.); (K.N.); (R.T.); (M.T.); (Y.N.); (K.M.); (K.Y.)
- Division of Oral and Maxillofacial Oncology and Surgical Sciences, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
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Kitazono I, Akahane T, Yokoyama S, Kobayashi Y, Togami S, Yanazume S, Tasaki T, Noguchi H, Tabata K, Kobayashi H, Tanimoto A. "Surface epithelial slackening" pattern in endometrioid carcinoma: A morphological feature for differentiating the POLE mutation-subtype from the no specific molecular profile subtype. Pathol Res Pract 2023; 247:154563. [PMID: 37229919 DOI: 10.1016/j.prp.2023.154563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/18/2023] [Indexed: 05/27/2023]
Abstract
Endometrial cancers are classified into mismatch repair (MMR) deficient- (MMRd), p53 mutation- (p53mut), DNA polymerase epsilon (POLE) mutation (POLEmut), and no specific molecular profile (NSMP) subtypes according to The Cancer Genome Atlas (TCGA). The distinction between POLEmut and NSMP subtypes is made on the basis of molecular analysis because the specific histological and immunohistochemical features of these two subtypes are still unknown. In this study, we analyzed histological features by scoring the presence of a mucinous pool, giant cells, clear cells, keratinization, neutrophilic abscess, and surface proliferating pattern in 82 cases of endometrial cancers in which an integrative diagnosis was confirmed by immunohistochemistry and genomic profiles showing POLE mutations, tumor mutation burden, and microsatellite instability. In contrast to the hierarchical branching of micropapillary proliferation observed in serous carcinoma, POLEmut-subtype endometrioid carcinomas often showed a surface epithelial slackening (SES) pattern in the tumor cells facing the uterine surface. The POLEmut subtype exhibited higher scores for clear cells and SES patterns than the other three subtypes. The scores for giant cells, clear cells, and the SES pattern were significantly higher in the POLEmut subtype than in the NSMP subtype, suggesting that these morphometric parameters are useful for differentiating POLEmut- and NSMP-subtype endometrioid carcinomas, although genomic profiling is still necessary for a definite molecular diagnosis.
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Affiliation(s)
- Ikumi Kitazono
- Department of Surgical Pathology, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Toshiaki Akahane
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Yusuke Kobayashi
- Course of Advanced Cancer Medicine for Gynecologic Cancer, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Shinichi Togami
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Shintaro Yanazume
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Takashi Tasaki
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Hirotsugu Noguchi
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Kazuhiro Tabata
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Hiroaki Kobayashi
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Akihide Tanimoto
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; Center for the Research of Advanced Diagnosis and Therapy of Cancer, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
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Hamada T, Higashi M, Yokoyama S, Akahane T, Hisaoka M, Noguchi H, Furukawa T, Tanimoto A. MALAT1 functions as a transcriptional promoter of MALAT1::GLI1 fusion for truncated GLI1 protein expression in cancer. BMC Cancer 2023; 23:424. [PMID: 37165307 PMCID: PMC10173563 DOI: 10.1186/s12885-023-10867-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/20/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND The long non-coding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a cancer biomarker. Furthermore, fusion of the MALAT1 gene with glioma-associated oncogene 1 (GLI1) is a diagnostic marker of plexiform fibromyxoma and gastroblastoma; however, the function of this fusion gene remains unexplored. METHOD In this study, we elucidate the structure and function of the MALAT1::GLI1 fusion gene. To this end, we determined a transcriptional start site (TSS) and promoter region for truncated GLI1 expression using rapid amplification of the 5' cDNA end and a luciferase reporter assay in cultured cells transfected with a plasmid harboring the MALAT1::GLI1 fusion gene. RESULTS We found that the TATA box, ETS1 motif, and TSS were located in MALAT1 and that MALAT1 exhibited transcriptional activity and induced expression of GLI1 from the MALAT1::GLI1 fusion gene. Truncated GLI1, lacking SUMOylation and SUFU binding sites and located in the nucleus, upregulated mRNA expression of GLI1 target genes in the hedgehog signaling pathway. CONCLUSIONS We demonstrate a distinct and alternative function of MALAT1 as a transcriptional promoter for expression of the MALAT1::GLI1 fusion gene. Our findings will aid future research on MALAT1 and its fusion gene partners.
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Affiliation(s)
- Taiji Hamada
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Michiyo Higashi
- Department of Surgical Pathology, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Toshiaki Akahane
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Masanori Hisaoka
- Department of Pathology and Oncology, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi, Kitakyushu, 807-8556, Japan
| | - Hirotsugu Noguchi
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Tatsuhiko Furukawa
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan.
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan.
- Center for the Research of Advanced Diagnosis and Therapy of Cancer, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima, 890-8544, Japan.
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Yoshino H, Yokoyama S, Tamai M, Okamura S, Iizasa S, Sakaguchi T, Osako Y, Inoguchi S, Matsushita R, Yamada Y, Nakagawa M, Tatarano S, Tanimoto A, Enokida H. Characterization and treatment of gemcitabine- and cisplatin-resistant bladder cancer cells with a pan-RAS inhibitor. FEBS Open Bio 2023. [PMID: 37079001 DOI: 10.1002/2211-5463.13616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/23/2023] [Accepted: 04/19/2023] [Indexed: 04/21/2023] Open
Abstract
Combination chemotherapy with gemcitabine and cisplatin (GC) is recommended as the primary treatment for advanced bladder cancer (BC). However, the benefits of this approach are limited owing to the acquisition of drug resistance. Here, we found report that gemcitabine-resistant and cisplatin-resistant BCs do not exhibit cross-resistance, and that these BCs exhibit different mRNA patterns, as revealed using RNA sequence analysis. To overcome drug resistance, we used the newly developed pan-RAS inhibitor Compound 3144. Compound 3144 inhibited cell viability through suppression of RAS-dependent signaling in gemcitabine- and cisplatin-resistant BCs. RNA sequencing revealed that several genes and pathways, particularly those related to the cell cycle, were significantly downregulated in Compound 3144-treated BCs. These findings provide insights into potential therapeutic strategies for treating BC.
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Affiliation(s)
- Hirofumi Yoshino
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Seiya Yokoyama
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Motoki Tamai
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Shunsuke Okamura
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Sayaka Iizasa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Takashi Sakaguchi
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yoichi Osako
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Satoru Inoguchi
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Ryosuke Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yasutoshi Yamada
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masayuki Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Shuichi Tatarano
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Akihide Tanimoto
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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10
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Higa N, Akahane T, Yokoyama S, Makino R, Yonezawa H, Uchida H, Takajo T, Kirishima M, Hamada T, Noguchi N, Otsuji R, Kuga D, Nagasaka S, Yamahata H, Yamamoto J, Yoshimoto K, Tanimoto A, Hanaya R. Favorable prognostic impact of phosphatase and tensin homolog alterations in wild-type isocitrate dehydrogenase and telomerase reverse transcriptase promoter glioblastoma. Neurooncol Adv 2023; 5:vdad078. [PMID: 37528810 PMCID: PMC10390081 DOI: 10.1093/noajnl/vdad078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023] Open
Abstract
Background Telomerase reverse transcriptase promoter (TERTp) mutations are a biological marker of glioblastoma; however, the prognostic significance of TERTp mutational status is controversial. We evaluated this impact by retrospectively analyzing the outcomes of patients with isocitrate dehydrogenase (IDH)- and TERTp-wild-type glioblastomas. Methods Using custom next-generation sequencing, we analyzed 208 glioblastoma samples harboring wild-type IDH. Results TERTp mutations were detected in 143 samples (68.8%). The remaining 65 (31.2%) were TERTp-wild-type. Among the TERTp-wild-type glioblastoma samples, we observed a significant difference in median progression-free survival (18.6 and 11.4 months, respectively) and overall survival (not reached and 15.7 months, respectively) in patients with and without phosphatase and tensin homolog (PTEN) loss and/or mutation. Patients with TERTp-wild-type glioblastomas with PTEN loss and/or mutation were younger and had higher Karnofsky Performance Status scores than those without PTEN loss and/or mutation. We divided the patients with TERTp-wild-type into 3 clusters using unsupervised hierarchical clustering: Good (PTEN and TP53 alterations; lack of CDKN2A/B homozygous deletion and platelet-derived growth factor receptor alpha (PDGFRA) alterations), intermediate (PTEN alterations, CDKN2A/B homozygous deletion, lack of PDGFRA, and TP53 alterations), and poor (PDGFRA and TP53 alterations, CDKN2A/B homozygous deletion, and lack of PTEN alterations) outcomes. Kaplan-Meier survival analysis indicated that these clusters significantly correlated with the overall survival of TERTp-wild-type glioblastoma patients. Conclusions Here, we report that PTEN loss and/or mutation is the most useful marker for predicting favorable outcomes in patients with IDH- and TERTp-wild-type glioblastomas. The combination of 4 genes, PTEN, TP53, CDKN2A/B, and PDGFRA, is important for the molecular classification and individual prognosis of patients with IDH- and TERTp-wild-type glioblastomas.
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Affiliation(s)
- Nayuta Higa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toshiaki Akahane
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
| | - Seiya Yokoyama
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Ryutaro Makino
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hajime Yonezawa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiroyuki Uchida
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tomoko Takajo
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Mari Kirishima
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Taiji Hamada
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Naoki Noguchi
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryosuke Otsuji
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daisuke Kuga
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shohei Nagasaka
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hitoshi Yamahata
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Junkoh Yamamoto
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Akihide Tanimoto
- Corresponding Authors: Akihide Tanimoto, MD, PhD, Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima-City, Kagoshima 890-8544, Japan ()
| | - Ryosuke Hanaya
- Ryosuke Hanaya, MD, PhD, Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima-City, Kagoshima 890-8520, Japan ()
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11
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Hamada T, Yokoyama S, Akahane T, Matsuo K, Tanimoto A. Genome Editing Using Cas9 Ribonucleoprotein Is Effective for Introducing PDGFRA Variant in Cultured Human Glioblastoma Cell Lines. Int J Mol Sci 2022; 24:ijms24010500. [PMID: 36613947 PMCID: PMC9820287 DOI: 10.3390/ijms24010500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/12/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022] Open
Abstract
Many variants of uncertain significance (VUS) have been detected in clinical cancer cases using next-generation sequencing-based cancer gene panel analysis. One strategy for the elucidation of VUS is the functional analysis of cultured cancer cell lines that harbor targeted gene variants using genome editing. Genome editing is a powerful tool for creating desired gene alterations in cultured cancer cell lines. However, the efficiency of genome editing varies substantially among cell lines of interest. We performed comparative studies to determine the optimal editing conditions for the introduction of platelet-derived growth factor receptor alpha (PDGFRA) variants in human glioblastoma multiforme (GBM) cell lines. After monitoring the copy numbers of PDGFRA and the expression level of the PDGFRα protein, four GBM cell lines (U-251 MG, KNS-42, SF126, and YKG-1 cells) were selected for the study. To compare the editing efficiency in these GBM cell lines, the modes of clustered regularly interspaced short palindromic repeat (CRISPR)-associated protein 9 (Cas9) delivery (plasmid vs. ribonucleoprotein (RNP)), methods of transfection (lipofection vs. electroporation), and usefulness of cell sorting were then evaluated. Herein, we demonstrated that electroporation-mediated transfer of Cas9 with single-guide RNA (Cas9 RNP complex) could sufficiently edit a target nucleotide substitution, irrespective of cell sorting. As the Cas9 RNP complex method showed a higher editing efficiency than the Cas9 plasmid lipofection method, it was the optimal method for single-nucleotide editing in human GBM cell lines under our experimental conditions.
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12
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Yamashiro K, Hosomi K, Yokoyama S, Ogata F, Nakamura T, Kawasaki N. Adverse event profiles of hypomagnesemia caused by proton pump inhibitors using the Japanese Adverse Drug Event Report (JADER) Database. Pharmazie 2022; 77:243-247. [PMID: 36199184 DOI: 10.1691/ph.2022.2416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Proton pump inhibitors (PPIs) are commonly used for the prevention or treatment of gastric ulcers, but they can induce hypomagnesemia. Little is known about the onset duration and risk factors related to patient characteristics of this adverse event in Japanese patients. Therefore, we analyzed the time-to-onset of PPI-induced hypomagnesemia and evaluated the association between hypomagnesemia and PPIs using the Japanese Adverse Drug Event Report (JADER) database. We analyzed hypomagnesemia cases between 2004 and 2021. The time-to-onset analysis was performed using the Weibull distribution, and the adjusted reporting odds ratio (aROR) or 95% confidence interval (95% CI) was calculated using a multiple logistic regression analysis. The analysis database comprised 236,525 cases, with 188 cases associated with hypomagnesemia. The median onset duration (interquartile range) of PPI-induced hypomagnesemia was 99.0 (51.8-285.5 ) days, which is considered the random failure type. The multiple logistic regression analysis revealed that hypomagnesemia is significantly associated with male sex (aROR, 95% CI: 1.66, 1.23-2.25) , age < 60 (1.59, 1.14-2.21) , estimated body-mass index (eBMI) (0.94, 0.91-0.98) , PPIs (1.66, 1.18-2.30) , and the interaction of age (<60)*PPIs (1.58, 1.13-2.19) . However, diuretics were not significantly associated with hypomagnesemia. Our results suggest that serum magnesium levels should be measured regularly regardless of the duration of PPI use, especially in patients with male sex, age < 60, or low BMI. These findings will assist health professionals in the adequate use of PPIs. These findings need to be evaluated by cohort studies and long-term clinical investigations.
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Affiliation(s)
- K Yamashiro
- Laboratory of Public Health, Faculty of Pharmacy, Kindai University, Osaka, Japan
| | - K Hosomi
- Division of Drug Informatics, Faculty of Pharmacy, Kindai University, Osaka, Japan
| | - S Yokoyama
- Division of Drug Informatics, Faculty of Pharmacy, Kindai University, Osaka, Japan
| | - F Ogata
- Laboratory of Public Health, Faculty of Pharmacy, Kindai University, Osaka, Japan
| | - T Nakamura
- Laboratory of Public Health, Faculty of Pharmacy, Kindai University, Osaka, Japan
| | - N Kawasaki
- Laboratory of Public Health, Faculty of Pharmacy, Kindai University, Osaka, Japan;,
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13
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Higa N, Akahane T, Yokoyama S, Yonezawa H, Uchida H, Fujio S, Kirishima M, Takigawa K, Hata N, Toh K, Yamamoto J, Hanaya R, Tanimoto A, Yoshimoto K. Molecular Genetic Profile of 300 Japanese Patients with Diffuse Gliomas Using a Glioma-tailored Gene Panel. Neurol Med Chir (Tokyo) 2022; 62:391-399. [PMID: 36031351 PMCID: PMC9534570 DOI: 10.2176/jns-nmc.2022-0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Rapid technological advances in molecular biology, including next-generation sequencing, have identified key genetic alterations in central nervous system (CNS) tumors. Accordingly, the fifth edition of the World Health Organization (WHO) CNS tumor classification was published in 2021. We analyzed 303 patients with diffuse glioma using an amplicon-based glioma-tailored gene panel for detecting 1p/19q codeletion and driver gene mutations such as IDH1/2, TERTp, EGFR, and CDKN2A/B on a single platform. Within glioblastomas (GBMs), the most commonly mutated genes were TERTp, TP53, PTEN, NF1, and PDGFRA, which was the most frequently mutated tyrosine kinase receptor in GBM, followed by EGFR. The genes that most commonly showed evidence of loss were PTEN, CDKN2A/B, and RB1, whereas the genes that most commonly showed evidence of gain/amplification were EGFR, PDGFRA, and CDK4. In 22 grade III oligodendroglial tumors, 3 (14%) patients had CDKN2A/B homozygous deletion, and 4 (18%) patients had ARID1A mutation. In grade III oligodendroglial tumors, an ARID1A mutation was associated with worse progression-free survival. Reclassification based on the WHO 2021 classification resulted in 62.5% of grade II/III isocitrate dehydrogenase (IDH)-wildtype astrocytomas being classified as IDH-wildtype GBM and 37.5% as not elsewhere classified. In summary, our glioma-tailored gene panel was applicable for molecular diagnosis in the WHO 2021 classification. In addition, we successfully reclassified the 303 diffuse glioma cases based on the WHO 2021 classification and clarified the genetic profile of diffuse gliomas in the Japanese population.
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Affiliation(s)
- Nayuta Higa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Toshiaki Akahane
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University.,Center for Human Genome and Gene Analysis, Kagoshima University Hospital
| | - Seiya Yokoyama
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Hajime Yonezawa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Hiroyuki Uchida
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Shingo Fujio
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Mari Kirishima
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Kosuke Takigawa
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University
| | - Nobuhiro Hata
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University
| | - Keita Toh
- Department of Neurosurgery, University of Occupational and Environmental Health
| | - Junkoh Yamamoto
- Department of Neurosurgery, University of Occupational and Environmental Health
| | - Ryosuke Hanaya
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Akihide Tanimoto
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University.,Center for Human Genome and Gene Analysis, Kagoshima University Hospital
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University.,Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University
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14
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Higa N, Akahane T, Hamada T, Yonezawa H, Uchida H, Makino R, Watanabe S, Takajo T, Yokoyama S, Kirishima M, Matsuo K, Fujio S, Hanaya R, Tanimoto A, Yoshimoto K. Distribution and favorable prognostic implication of genomic EGFR alterations in IDH-wildtype glioblastoma. Cancer Med 2022; 12:49-60. [PMID: 35695190 PMCID: PMC9844636 DOI: 10.1002/cam4.4939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 05/08/2022] [Accepted: 06/03/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND We aimed to evaluate the mutation profile, transcriptional variants, and prognostic impact of the epidermal growth factor receptor (EGFR) gene in isocitrate dehydrogenase (IDH)-wildtype glioblastomas (GBMs). METHODS We sequenced EGFR, evaluated the EGFR splicing profile using a next-generation sequencing oncopanel, and analyzed the outcomes in 138 grade IV IDH-wildtype GBM cases. RESULTS EGFR mutations were observed in 10% of GBMs. A total of 23.9% of the GBMs showed EGFR amplification. Moreover, 25% of the EGFR mutations occurred in the kinase domain. Notably, EGFR alterations were a predictor of good prognosis (p = 0.035). GBM with EGFR alterations was associated with higher Karnofsky Performance Scale scores (p = 0.014) and lower Ki-67 scores (p = 0.005) than GBM without EGFR alterations. EGFRvIII positivity was detected in 21% of EGFR-amplified GBMs. We identified two other EGFR variants in GBM cases with deletions of exons 6-7 (Δe 6-7) and exons 2-14 (Δe 2-14). In one case, the initial EGFRvIII mutation transformed into an EGFR Δe 2-14 mutation during recurrence. CONCLUSIONS We found that the EGFR gene profiles of GBM differ among cohorts and that EGFR alterations are good prognostic markers of overall survival in patients with IDH-wildtype GBM. Additionally, we identified rare EGFR variants with longitudinal and temporal transformations of EGFRvIII.
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Affiliation(s)
- Nayuta Higa
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Toshiaki Akahane
- Department of Pathology, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan,Center for Human Genome and Gene AnalysisKagoshima University HospitalKagoshimaJapan
| | - Taiji Hamada
- Department of Pathology, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Hajime Yonezawa
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Hiroyuki Uchida
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Ryutaro Makino
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Shoji Watanabe
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Tomoko Takajo
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Seiya Yokoyama
- Department of Pathology, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Mari Kirishima
- Department of Pathology, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Kei Matsuo
- Department of Pathology, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Shingo Fujio
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Ryosuke Hanaya
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan
| | - Akihide Tanimoto
- Department of Pathology, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan,Center for Human Genome and Gene AnalysisKagoshima University HospitalKagoshimaJapan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental SciencesKagoshima UniversityKagoshimaJapan,Department of Neurosurgery, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
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15
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Yokoyama S, Kikuchi R, Matsuyama H, Ohashi K, Watarai R, Hayashi G, Numata Y, Hagiwara T, Kobayashi T, Ando Y, Matsushita T. M022 Performance evaluation of microslide and open channel on VITROS XT 7600 – Establish a clinical testing system for clinical chemistry in the event of a disaster-. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.313] [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: 11/16/2022]
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16
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Murayama M, Iwano H, Obokata M, Harada T, Omote K, Tsujinaga S, Chiba Y, Ishizaka S, Motoi K, Nakabachi M, Nishino H, Yokoyama S, Nishida M, Kurabayashi M, Anzai T. Two-dimensional echocardiographic scoring system of the left ventricular filling pressure and clinical outcomes in heart failure with preserved ejection fraction. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.154] [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: 11/15/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): Japan Society for the Promotion of Science (JSPS)
Introduction
Elevated left ventricular (LV) filling pressure in non-decompensated state is a powerful indicator of worse clinical outcomes in heart failure regardless of LV ejection fraction. However, its detection is often challenging in heart failure with preserved ejection fraction (HFpEF).
Purpose
This study aimed to elucidate the predictive value of recently proposed echocardiographic parameter of LV filling pressure, Visually assessed time difference between the Mitral valve and Tricuspid valve opening (VMT) score in HFpEF.
Methods
We retrospectively analyzed 310 well-differentiated HFpEF patients in stable conditions. Using two-dimensional echocardiographic images, time sequence of opening of mitral valve and tricuspid valve was visually assessed in the apical four-chamber view and scored to 0 to 2 (0: tricuspid valve first, 1: simultaneous, 2: mitral valve first). When the inferior vena cava diameter was dilated, 1 point was added and VMT score was calculated as four grades from 0 to 3. Based on the previous study, VMT≥2 was regarded as a sign of elevated LV filling pressure (Figure 1). LV diastolic function was graded according to the guidelines. The primary endpoint was defined as a composite of cardiac death and heart failure hospitalisation during the two years after echocardiographic examination.
Results
During the follow-up period, 55 events (18%) occurred, including four cardiac deaths and 51 heart failure hospitalisations. Kaplan-Meier curves demonstrated that VMT≥2 (n = 54) was associated with worse outcomes compared to patients showing VMT ≤ 1 (n = 256) (log-rank test P <0.001). Furthermore, VMT≥2 was associated with worse outcomes when tested in 100 HFpEF patients with atrial fibrillation (log-rank test P = 0.026) (Figure 2). In the adjusted model including age, systolic blood pressure, serum albumin level, and the LV diastolic function grading, VMT≥2 was independently associated with the primary outcome (hazard ratio: 2.23; 95% confidence interval: 1.17 to 4.24, P = 0.014). Additionally, the nested regression model showed that VMT scoring provided an incremental prognostic value over clinically relevant variables (age, sex, the plasma brain natriuretic peptide level, atrial fibrillation) and LV diastolic function grading (chi-square 10.8 vs 16.3, P = 0.035).
Conclusions
In patients with HFpEF, the VMT score was independently and incrementally associated with adverse clinical outcomes. Moreover, it discriminated worse clinical outcome even in HFpEF patients with atrial fibrillation. Abstract Figure. VMT scoring Abstract Figure. Kaplan-Meier analysis
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Affiliation(s)
- M Murayama
- Hokkaido University Hospital, Diagnostic Center for Sonography, Sapporo, Japan
| | - H Iwano
- Hokkaido University, Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - M Obokata
- Gunma University Graduate School of Medicine, Department of Cardiovascular Medicine, Gunma, Japan
| | - T Harada
- Gunma University Graduate School of Medicine, Department of Cardiovascular Medicine, Gunma, Japan
| | - K Omote
- Hokkaido University, Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - S Tsujinaga
- Hokkaido University, Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - Y Chiba
- Hokkaido University, Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - S Ishizaka
- Hokkaido University, Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - K Motoi
- Hokkaido University, Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - M Nakabachi
- Hokkaido University Hospital, Diagnostic Center for Sonography, Sapporo, Japan
| | - H Nishino
- Hokkaido University Hospital, Diagnostic Center for Sonography, Sapporo, Japan
| | - S Yokoyama
- Hokkaido University Hospital, Diagnostic Center for Sonography, Sapporo, Japan
| | - M Nishida
- Hokkaido University Hospital, Diagnostic Center for Sonography, Sapporo, Japan
| | - M Kurabayashi
- Gunma University Graduate School of Medicine, Department of Cardiovascular Medicine, Gunma, Japan
| | - T Anzai
- Hokkaido University, Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
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17
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Aoyagi H, Tsujinaga S, Iwano H, Ishizaka S, Tamaki Y, Motoi K, Chiba Y, Murayama M, Nakabachi M, Nishino H, Yokoyama S, Sato T, Kaga S, Nagai T, Anzai T. Pathophysiological mechanism of worsened clinical outcome by lowered left ventricular cardiac power output in heart failure. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.383] [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
Funding Acknowledgements
Type of funding sources: None.
Background
Cardiac power output (CPO) is a measure of cardiac pumping function, and CPO during exercise is known to be a powerful prognostic marker of heart failure. Despite its prognostic significance, pathophysiological mechanism of the association between reduced CPO and worse clinical outcome is unknown. We hypothesized that reduced CPO is associated with worse outcome through the reduced exercise capacity and enhanced ventilatory response.
Methods
Cardiopulmonary exercise testing and exercise stress echocardiography were performed in consecutive 64 patients with chronic heart failure who admitted to our department for the management of heart failure [60 ± 14 years old, left ventricular (LV) ejection fraction 39 ± 16%, ischemic etiology 16%, brain natriuretic peptide 124 pg/ml (51-313)]. Peak oxygen uptake (peak VO2) and the lowest minute ventilation / carbon dioxide production ratio (VE/VCO2) were measured as a parameter of exercise tolerance and that of ventilatory response, respectively. LV ejection fraction was measured by disk summation method at peak exercise. By using Doppler images, E/e" at peak exercise was measured as a marker of LV filling pressure, and CPO normalized by LV mass was obtained as 0.222 × cardiac output × mean blood pressure / LV mass [W/100 g]. Cardiac events defined as hospitalization for heart failure, cardiac death, or implantation of a LV assist device after the examinations were recorded.
Results
CPO at rest was weakly correlated with peak VO2 (r = 0.25, p = 0.046) but not with VE/VCO2. In contrast, CPO at peak exercise was positively correlated with peak VO2 (r = 0.50, p < 0.001) and inversely correlated with VE/VCO2 (r=-0.40, p = 0.002). Moreover, CPO at peak exercise determined both peak VO2 (b = 0.50) and VE/VCO2 (β=-0.54) independently of LV ejection fraction and E/e" at peak exercise. During a median follow-up period of 1211 days, 12 cardiac events were observed. Each of reduced peak VO2 (hazard ratio 0.78, 95% confidence interval 0.66-0.90) and increased VE/VCO2 (hazard ratio 1.10, 95% confidence interval 1.02-1.18) was associated with worse clinical outcome.
Conclusions
In patients with chronic heart failure, CPO during exercise was associated with prognosis of heart failure through the reduced exercise capacity and enhanced ventilatory response.
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Affiliation(s)
- H Aoyagi
- Hokkaido University, Sapporo, Japan
| | | | - H Iwano
- Hokkaido University, Sapporo, Japan
| | | | - Y Tamaki
- Hokkaido University, Sapporo, Japan
| | - K Motoi
- Hokkaido University, Sapporo, Japan
| | - Y Chiba
- Hokkaido University, Sapporo, Japan
| | - M Murayama
- Hokkaido University Hospital, Sapporo, Japan
| | - M Nakabachi
- Hokkaido University Hospital, Sapporo, Japan
| | - H Nishino
- Hokkaido University Hospital, Sapporo, Japan
| | - S Yokoyama
- Hokkaido University Hospital, Sapporo, Japan
| | - T Sato
- Hokkaido University, Sapporo, Japan
| | - S Kaga
- Hokkaido University, Sapporo, Japan
| | - T Nagai
- Hokkaido University, Sapporo, Japan
| | - T Anzai
- Hokkaido University, Sapporo, Japan
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18
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Kobayashi Y, Kitazono I, Akahane T, Yanazume S, Kamio M, Togami S, Nohara S, Sakamoto I, Yokoyama S, Tabata K, Kobayashi H, Tanimoto A. Molecular Evaluation of Endometrial Dedifferentiated Carcinoma, Endometrioid Carcinoma, Carcinosarcoma, and Serous Carcinoma Using a Custom-Made Small Cancer Panel. Pathol Oncol Res 2022; 27:1610013. [PMID: 35002543 PMCID: PMC8734147 DOI: 10.3389/pore.2021.1610013] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/28/2021] [Indexed: 12/18/2022]
Abstract
It is often difficult to histologically differentiate among endometrial dedifferentiated carcinoma (DC), endometrioid carcinoma (EC), serous carcinoma (SC), and carcinosarcoma (CS) due to the presence of solid components. In this study, we aimed to categorize these carcinomas according to The Cancer Genome Atlas (TCGA) classification using a small custom-made cancer genome panel (56 genes and 17 microsatellite regions) for integrated molecular diagnosis. A total of 36 endometrial cancer cases with solid components were assessed using IHC, next-generation sequencing (NGS), and the custom-made panel. Among 19 EC cases, six were categorized as MMR-deficient (MMR-d) and eight were classified as having a nonspecific molecular profile. Three EC cases were classified as POLE mutation (POLEmut)-type, which had a very high tumor mutation burden (TMB) and low microsatellite instability (MSI). Increased TMB and MSI were observed in all three DC cases, classified as MMR-d with mutations in MLH1 and POLD1. Except for one case classified as MMR-d, all SC cases exhibited TP53 mutations and were classified as p53 mutation-type. SC cases also exhibited amplification of CCND1, CCNE1, and MYC. CS cases were classified as three TCGA types other than the POLEmut-type. The IHC results for p53 and ARID1A were almost consistent with their mutation status. NGS analysis using a small panel enables categorization of endometrial cancers with solid proliferation according to TCGA classification. As TCGA molecular classification does not consider histological findings, an integrated analytical procedure including IHC and NGS may be a practical diagnostic tool for endometrial cancers.
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Affiliation(s)
- Yusuke Kobayashi
- Course of Advanced Cancer Medicine for Gynecologic Cancer, Kagoshima, Japan
| | - Ikumi Kitazono
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Toshiaki Akahane
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.,Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
| | - Shintaro Yanazume
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Masaki Kamio
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shinichi Togami
- Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Sachio Nohara
- Department of Biomedical Informatics, Mitsubishi Space Software, Amagasaki, Japan
| | - Ippei Sakamoto
- Department of Biomedical Informatics, Mitsubishi Space Software, Amagasaki, Japan
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Kazuhiro Tabata
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Hiroaki Kobayashi
- Course of Advanced Cancer Medicine for Gynecologic Cancer, Kagoshima, Japan.,Department of Obstetrics and Gynecology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.,Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
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19
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Higa N, Akahane T, Yokoyama S, Yonezawa H, Uchida H, Takajo T, Otsuji R, Hamada T, Matsuo K, Kirishima M, Hata N, Hanaya R, Tanimoto A, Yoshimoto K. Prognostic impact of PDGFRA gain/amplification and MGMT promoter methylation status in patients with IDH wild-type glioblastoma. Neurooncol Adv 2022; 4:vdac097. [PMID: 35911637 PMCID: PMC9332894 DOI: 10.1093/noajnl/vdac097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background Platelet-derived growth factor receptor alpha (PDGFRA) is the second most frequently mutated tyrosine kinase receptor in glioblastoma (GBM). However, the prognostic impact of PDGFRA amplification on GBM patients remains unclear. Herein, we evaluated this impact by retrospectively analyzing outcomes of patients with IDH wild-type GBM. Methods Using a custom-made oncopanel, we evaluated PDGFRA gain/amplification in 107 GBM samples harboring wild-type IDH, along with MGMT promoter (MGMTp) methylation status. Results We detected PDGFRA gain/amplification in 31 samples (29.0%). PDGFRA gain/amplification predicted poor prognosis (P = .003). Compared to unamplified PDGFRA, PDGFRA gain/amplification in GBM was associated with higher patient age (P = .031), higher Ki-67 score (P = .019), and lower extent of surgical resection (P = .033). Unmethylated MGMTp also predicted poor prognosis (P = .005). As PDGFRA gain/amplification and unmethylated MGMTp were independent factors for poor prognosis in multivariate analyses, we grouped GBM cases based on PDGFRA and MGMTp status: poor (PDGFRA gain/amplification and unmethylated MGMTp), intermediate (PDGFRA gain/amplification or unmethylated MGMTp), and good (PDGFRA intact and methylated MGMTp) prognosis. The Kaplan-Meier survival analysis indicated that these groups significantly correlated with the OS of GBM patients (P < .001). Conclusions Here we report that PDGFRA gain/amplification is a predictor of poor prognosis in IDH wild-type GBM. Combining PDGFRA gain/amplification with MGMTp methylation status improves individual prognosis prediction in patients with IDH wild-type GBM.
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Affiliation(s)
- Nayuta Higa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Toshiaki Akahane
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital , Kagoshima-City, Kagoshima , Japan
| | - Seiya Yokoyama
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Hajime Yonezawa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Hiroyuki Uchida
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Tomoko Takajo
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Ryosuke Otsuji
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan
| | - Taiji Hamada
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Kei Matsuo
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Mari Kirishima
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Nobuhiro Hata
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan
| | - Ryosuke Hanaya
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
| | - Akihide Tanimoto
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital , Kagoshima-City, Kagoshima , Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University , Kagoshima-City, Kagoshima , Japan
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan
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20
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Yokoyama S, Fujita Y, Matsumura S, Yoshimura T, Kinoshita I, Watanabe T, Tabata H, Tsuji T, Ozawa S, Tamaki T, Nakatani Y, Oka M. Cribriform carcinoma in the lymph nodes is associated with distant metastasis, recurrence, and survival among patients with node-positive colorectal cancer. Br J Surg 2021; 108:e111-e112. [PMID: 33793704 DOI: 10.1093/bjs/znaa123] [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: 10/12/2020] [Accepted: 11/15/2020] [Indexed: 11/13/2022]
Abstract
Cribriform lymph node pattern is an independent risk factor for metachronous or synchronous distant metastasis in patients with stage III and IV node-positive colorectal cancer. Multivariable analysis in patients with stage III disease indicated that the cribriform pattern of carcinoma in the lymph nodes was an independent risk factor for recurrence and survival. Kaplan–Meier analysis demonstrated that the group with stage III cribriform-type lymph node carcinoma had shorter recurrence-free and overall survival times than the stage III group with the tubular type (P < 0.001).
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Affiliation(s)
- S Yokoyama
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - Y Fujita
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - S Matsumura
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - T Yoshimura
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - I Kinoshita
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - T Watanabe
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - H Tabata
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - T Tsuji
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - S Ozawa
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - T Tamaki
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - Y Nakatani
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
| | - M Oka
- Department of Surgery, National Hospital Organization Minami Wakayama Medical Centre, Wakayama, Japan
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21
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Kajita N, Yoshida K, Morikawa E, Hirao K, Yokoyama S, Narita M. Predictor of buckwheat allergy in children based on challenge test results: a retrospective observational study in Japan. Eur Ann Allergy Clin Immunol 2021; 54:183-188. [PMID: 34218649 DOI: 10.23822/eurannaci.1764-1489.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Buckwheat (BW) is a major food allergen and one of the leading causes of food-induced anaphylaxis in Japan. The standard method of diagnosing food allergy is the oral food challenge (OFC). The BW-specific IgE (BW-sIgE) value is used to assess BW allergy but its utility is limited.The aim of the present study was to identify factors with predictive value for the diagnosis of BW allergy using the OFC.We evaluated 37 patients who were classified into the positive or negative group according to their OFC results. Ten patients (27.0%) showed objective or persistent, moderate, subjective symptoms during the OFC. The positive group had a significantly higher BW-sIgE/total IgE ratio than the negative group (p less than 0.001), but the total IgE (p = 0.139) and BW-sIgE (p = 0.130) did not differ significantly. Receiver operator characteristic (ROC) analysis showed that the BW-sIgE/total IgE ratio had a larger area under the curve (AUC, 0.885) than BW-sIgE (AUC, 0.667). The statistically optimal cut-off was 0.0058 for the BW-sIgE/total IgE ratio, which corresponded to a clinical sensitivity and specificity of 90.0% and 81.5%, respectively.BW-s IgE/total IgE ratio may be more useful predictor of BW OFC results than BW-s IgE.
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Affiliation(s)
- N Kajita
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - K Yoshida
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - E Morikawa
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.,Clinical Research Support Center, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - K Hirao
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - S Yokoyama
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - M Narita
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
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22
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Kitazono I, Hamada T, Yoshimura T, Kirishima M, Yokoyama S, Akahane T, Tanimoto A. PCP4/PEP19 downregulates neurite outgrowth via transcriptional regulation of Ascl1 and NeuroD1 expression in human neuroblastoma M17 cells. J Transl Med 2020; 100:1551-1563. [PMID: 32641824 DOI: 10.1038/s41374-020-0462-z] [Citation(s) in RCA: 3] [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: 01/19/2020] [Revised: 06/05/2020] [Accepted: 06/22/2020] [Indexed: 11/09/2022] Open
Abstract
Purkinje cell protein 4/peptide 19 (PCP4/PEP19) is 7.6 kDa peptide originally found in Purkinje cells. PCP4/PEP19 is a differentiation maker of Purkinje cells, where it functions as an antiapoptotic factor. Cerebral neuronal cells also express PCP4/PEP19, which may be related to neuronal cell survival. However, evidence suggests that PCP4/PEP19 may also be involved in neuronal differentiation. Here, we investigated the effects of PCP4/PEP19 expression on neuronal differentiation by analyzing neurite outgrowth, and expression of neuronal differentiation markers in cultured human neuroblastoma M17 cells. When PCP4/PEP19 expression was reduced by siRNA-mediated knockdown, neurite outgrowth was significantly increased. Among many differentiation markers tested, expression of NeuroD1 was increased, while that of Ascl1 was decreased upon PCP4/PEP19 knockdown. Furthermore, luciferase reporter assays revealed that PCP4/PEP19 knockdown upregulated NeuroD1 and downregulated Ascl1 expression, at the transcriptional level. These results suggest a new function of PCP4/PEP19, which suppresses neurite outgrowth and neuronal differentiation through the regulation of NeuroD1 and Ascl1 expression in M17 cells. Furthermore, immunohistochemical studies showed that PCP4/PEP19 localizes in the nuclei of human neuroblastoma cells. Therefore, PCP4/PEP19 may also be an intranuclear negative regulator of neuronal differentiation and may thus be a potential therapeutic target to promote cellular differentiation in human neuroblastoma.
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Affiliation(s)
- Ikumi Kitazono
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Taiji Hamada
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Takuya Yoshimura
- Department of Oral and Maxillofacial Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Mari Kirishima
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Toshiaki Akahane
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
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23
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Murayama M, Iwano H, Tsujinaga S, Nishino H, Yokoyama S, Nakabachi M, Sarashina M, Ishizaka S, Chiba Y, Okada K, Kaga S, Nishida M, Kamiya K, Nagai T, Anzai T. Simple echocardiographic scoring system to estimate left ventricular filling pressure based on visual assessment of time sequence of mitral and tricuspid valve opening. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1010] [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: 11/12/2022] Open
Abstract
Abstract
Introduction
In the presence of elevated left ventricular (LV) filling pressure, mitral valve (MV) becomes to open early and precedes tricuspid valve (TV) opening in early diastole. Accordingly, time-delay of right ventricular inflow relative to LV inflow assessed by dual Doppler system was recently reported as a parameter of LV filling pressure. We assumed that visually-assessed time-delay of TV relative to MV opening could be a simple and alternative marker of elevated LV filling pressure.
Purpose
This study aimed to elucidate the clinical usefulness of the 2-dimensional echocardiographic scoring system, Visual assessment of time-difference between Mitral and Tricuspid valve opening (VMT) score, in patients with heart failure (HF).
Methods
We analyzed 119 consecutive HF patients who underwent echocardiography and cardiac catheterization within a day. Elevated LV filling pressure was defined as mean pulmonary arterial wedge pressure (PAWP) ≥15 mmHg. LV diastolic function was graded according to the ASE/EACVI recommendations. Time sequence of opening of MV and TV was visually assessed in the apical 4-chamber view and scored to 3 grades (0: TV opening first, 1: simultaneous, 2: MV opening first). When the inferior vena cava diameter was >21 mm and collapsed <20% during normal respiration, 1 point was added and VMT score was calculated as 4 grades from 0 to 3. We also investigated 113 patients without worsening HF at VMT scoring for cardiac events defined as worsening HF, LV assist device implantation, or cardiac death for 1 year after the echocardiography.
Results
VMT was scored as 0 in 20 patients, 1 in 50 patients, 2 in 37 patients, and 3 in 12 patients. PAWP was elevated in patients with VMT score of 2 and 3 (0: 10±5, 1: 12±4, 2: 22±8, 3: 28±4 mmHg, ANOVA P<0.001) (Figure). In overall patients, VMT≥2 predicted elevated PAWP with accuracy of 86%. When the accuracy was tested in patients with reduced (<40%, HFrEF) and preserved LV ejection fraction (≥40%) respectively, the accuracy was excellent in HFrEF (96% and 77%, respectively). Importantly, VMT≥2 also had good accuracy of 82% for elevated PAWP in 33 patients in whom recommendations usually cannot grade diastolic function due to monophasic LV inflow. In the sequential Cox models, the addition of VMT score to the model including the plasma brain natriuretic peptide (BNP) level and LV diastolic grading improved the predictive power for elevated PAWP (P<0.001). During the follow-up, 20 cardiac events were observed (6 worsening HF, 9 LV assist device implantation and 5 cardiac death). Kaplan-Meier analysis showed that the patients with VMT≥2 were at higher risk of cardiac events than those with VMT≤1 (log-rank test P<0.001) (Figure).
Conclusions
The VMT score was a simple and accurate marker of elevated LV filling pressure and has an incremental benefit over BNP and LV diastolic function grading. Moreover, it could be a novel prognostic marker in patients with HF.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Murayama
- Hokkaido University Hospital, Sapporo, Japan
| | - H Iwano
- Hokkaido University Hospital, Sapporo, Japan
| | - S Tsujinaga
- Hokkaido University Hospital, Sapporo, Japan
| | - H Nishino
- Hokkaido University Hospital, Sapporo, Japan
| | - S Yokoyama
- Hokkaido University Hospital, Sapporo, Japan
| | - M Nakabachi
- Hokkaido University Hospital, Sapporo, Japan
| | - M Sarashina
- Hokkaido University Hospital, Sapporo, Japan
| | - S Ishizaka
- Hokkaido University Hospital, Sapporo, Japan
| | - Y Chiba
- Hokkaido University Hospital, Sapporo, Japan
| | - K Okada
- Hokkaido University, Sapporo, Japan
| | - S Kaga
- Hokkaido University, Sapporo, Japan
| | - M Nishida
- Hokkaido University Hospital, Sapporo, Japan
| | - K Kamiya
- Hokkaido University Hospital, Sapporo, Japan
| | - T Nagai
- Hokkaido University Hospital, Sapporo, Japan
| | - T Anzai
- Hokkaido University Hospital, Sapporo, Japan
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24
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Higa N, Akahane T, Yokoyama S, Yonezawa H, Uchida H, Takajo T, Kirishima M, Hamada T, Matsuo K, Fujio S, Hanada T, Hosoyama H, Yonenaga M, Sakamoto A, Hiraki T, Tanimoto A, Yoshimoto K. A tailored next-generation sequencing panel identified distinct subtypes of wildtype IDH and TERT promoter glioblastomas. Cancer Sci 2020; 111:3902-3911. [PMID: 32748499 PMCID: PMC7541004 DOI: 10.1111/cas.14597] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 12/14/2022] Open
Abstract
Central nervous system tumors are classified based on an integrated diagnosis combining histology and molecular characteristics, including IDH1/2 and H3-K27M mutations, as well as 1p/19q codeletion. Here, we aimed to develop and assess the feasibility of a glioma-tailored 48-gene next-generation sequencing (NGS) panel for integrated glioma diagnosis. We designed a glioma-tailored 48-gene NGS panel for detecting 1p/19q codeletion and mutations in IDH1/2, TP53, PTEN, PDGFRA, NF1, RB1, CDKN2A/B, CDK4, and the TERT promoter (TERTp). We analyzed 106 glioma patients (grade II: 19 cases, grade III: 23 cases, grade IV: 64 cases) using this system. The 1p/19q codeletion was detected precisely in oligodendroglial tumors using our NGS panel. In a cohort of 64 grade Ⅳ gliomas, we identified 56 IDH-wildtype glioblastomas. Within these IDH-wildtype glioblastomas, 33 samples (58.9%) showed a mutation in TERTp. Notably, PDGFRA mutations and their amplification were more commonly seen in TERTp-wildtype glioblastomas (43%) than in TERTp-mutant glioblastomas (6%) (P = .001). Hierarchical molecular classification of IDH-wildtype glioblastomas revealed 3 distinct groups of IDH-wildtype glioblastomas. One major cluster was characterized by mutations in PDGFRA, amplification of CDK4 and PDGFRA, homozygous deletion of CDKN2A/B, and absence of TERTp mutations. This cluster was significantly associated with older age (P = .021), higher Ki-67 score (P = .007), poor prognosis (P = .012), and a periventricular tumor location. We report the development of a glioma-tailored NGS panel for detecting 1p/19q codeletion and driver gene mutations on a single platform. Our panel identified distinct subtypes of IDH- and TERTp-wildtype glioblastomas with frequent PDGFRA alterations.
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Affiliation(s)
- Nayuta Higa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Toshiaki Akahane
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
| | - Seiya Yokoyama
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hajime Yonezawa
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiroyuki Uchida
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tomoko Takajo
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Mari Kirishima
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Taiji Hamada
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kei Matsuo
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Shingo Fujio
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tomoko Hanada
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiroshi Hosoyama
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masanori Yonenaga
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Akihisa Sakamoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tsubasa Hiraki
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Akihide Tanimoto
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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25
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Hoshi K, Yoshitomi H, Aoki K, Tanimura Y, Tsujimura N, Yokoyama S. Eye lens dosimetry for workers at Fukushima Daiichi Nuclear Power Plant—1: Laboratory study on the dosemeter position and the shielding effect of full face mask respirators. RADIAT MEAS 2020. [DOI: 10.1016/j.radmeas.2020.106304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Yokoyama S, Hamada T, Higashi M, Matsuo K, Maemura K, Kurahara H, Horinouchi M, Hiraki T, Sugimoto T, Akahane T, Yonezawa S, Kornmann M, Batra SK, Hollingsworth MA, Tanimoto A. Predicted Prognosis of Patients with Pancreatic Cancer by Machine Learning. Clin Cancer Res 2020; 26:2411-2421. [PMID: 31992588 DOI: 10.1158/1078-0432.ccr-19-1247] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/20/2019] [Accepted: 01/23/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE Pancreatic cancer remains a disease of high mortality despite advanced diagnostic techniques. Mucins (MUC) play crucial roles in carcinogenesis and tumor invasion in pancreatic cancers. MUC1 and MUC4 expression are related to the aggressive behavior of human neoplasms and a poor patient outcome. In contrast, MUC2 is a tumor suppressor, and we have previously reported that MUC2 is a favorable prognostic factor in pancreatic neoplasia. This study investigates whether the methylation status of three mucin genes from postoperative tissue specimens from patients with pancreatic neoplasms could serve as a predictive biomarker for outcome after surgery. EXPERIMENTAL DESIGN We evaluated the methylation status of MUC1, MUC2, and MUC4 promoter regions in pancreatic tissue samples from 191 patients with various pancreatic lesions using methylation-specific electrophoresis. Then, integrating these results and clinicopathologic features, we used support vector machine-, neural network-, and multinomial-based methods to develop a prognostic classifier. RESULTS Significant differences were identified between the positive- and negative-prediction classifiers of patients in 5-year overall survival (OS) in the cross-validation test. Multivariate analysis revealed that these prognostic classifiers were independent prognostic factors analyzed by not only neoplastic tissues but also nonneoplastic tissues. These classifiers had higher predictive accuracy for OS than tumor size, lymph node metastasis, distant metastasis, and age and can complement the prognostic value of the TNM staging system. CONCLUSIONS Analysis of epigenetic changes in mucin genes may be of diagnostic utility and one of the prognostic predictors for patients with pancreatic ductal adenocarcinoma.
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Affiliation(s)
- Seiya Yokoyama
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Taiji Hamada
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Michiyo Higashi
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
| | - Kei Matsuo
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Kosei Maemura
- Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiroshi Kurahara
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Michiko Horinouchi
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tsubasa Hiraki
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tomoyuki Sugimoto
- Graduate School of Science and Engineering (Science), Kagoshima University, Kagoshima, Japan
| | - Toshiaki Akahane
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Suguru Yonezawa
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Marko Kornmann
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Michael A Hollingsworth
- Fred and Pamela Buffet Cancer Center, Eppley Institute for Research in Cancer, University of Nebraska Medical Center, Omaha, Nebraska
| | - Akihide Tanimoto
- Department of Pathology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
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27
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Akahane T, Yamaguchi T, Kato Y, Yokoyama S, Hamada T, Nishida Y, Higashi M, Nishihara H, Suzuki S, Ueno S, Tanimoto A. Comprehensive validation of liquid-based cytology specimens for next-generation sequencing in cancer genome analysis. PLoS One 2019; 14:e0217724. [PMID: 31199826 PMCID: PMC6568385 DOI: 10.1371/journal.pone.0217724] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/07/2019] [Indexed: 12/20/2022] Open
Abstract
In addition to conventional cytology, liquid-based cytology (LBC) is also used for immunocytochemistry and gene analysis. However, an appropriate method to obtain high quality DNA for next-generation sequencing (NGS) using LBC specimens remains controversial. We determined the optimal conditions for fixation with an alcohol-based fixative for LBC and DNA extraction using cultured cancer cell lines and clinical specimens. The extracted DNA was processed for NGS after the DNA quality was confirmed based on the DNA concentration and degree of degradation. The optimal conditions for cultured cells to obtain high quality DNA were to fix the cells at a density of 6 × 103 or 2 × 104 cells/mL and to use the magnetic bead-based DNA extraction method. Even after storing the fixed cells for 90 days, DNA extracted using the above and other extraction kits, including membrane-based methods, did not undergo degradation. Furthermore, 5-year-old residual LBC samples demonstrated high DNA quality that was suitable for NGS. Furthermore, a cancer genome panel analysis was successfully performed with DNA extracted from cultured cells fixed at 6 × 103 cells/mL for 90 days, and with DNA from residual LBC samples even after 1 year of storage. Residual LBC samples may be a useful source of DNA for clinical NGS to promote genome-based cancer medicine.
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Affiliation(s)
- Toshiaki Akahane
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
| | - Tomomi Yamaguchi
- Department of Pathology, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Japan
| | - Yasutaka Kato
- Department of Pathology, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Japan
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Taiji Hamada
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yukari Nishida
- Department Surgical Pathology, Kagoshima University Hospital, Kagoshima, Japan
| | - Michiyo Higashi
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
- Department Surgical Pathology, Kagoshima University Hospital, Kagoshima, Japan
| | - Hiroshi Nishihara
- Department of Biology and Genetics, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Japan
- Keio Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Shinsuke Suzuki
- Department of Clinical Cancer Research, Kagoshima University Graduate School of Medical and Dental Sciences, 890–8544 Kagoshima, Japan
- Kagoshima University Hospital Cancer Center, Kagoshima University Hospital, Kagoshima, Japan
| | - Shinichi Ueno
- Department of Clinical Cancer Research, Kagoshima University Graduate School of Medical and Dental Sciences, 890–8544 Kagoshima, Japan
- Kagoshima University Hospital Cancer Center, Kagoshima University Hospital, Kagoshima, Japan
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
- Center for Human Genome and Gene Analysis, Kagoshima University Hospital, Kagoshima, Japan
- Department Surgical Pathology, Kagoshima University Hospital, Kagoshima, Japan
- * E-mail:
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28
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Yamashita S, Iguchi K, Noguchi Y, Sakai C, Yokoyama S, Ino Y, Hayashi H, Teramachi H, Sako M, Sugiyama T. Color change in Perlodel ® tablets induced by LED lighting - photolysis of bromocriptine mesylate. Pharmazie 2019; 74:286-289. [PMID: 31109398 DOI: 10.1691/ph.2019.8109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Various types of fluorescent lights are found in the dispensing rooms of medical facilities, such as hospitals and pharmacies, in Japan. However, to reduce electric power consumption, it was necessary to evaluate the substitution of fluorescent lighting with light emitting diode (LED) lighting, which has become widespread in recent years. We subjectively evaluated several types of medicines stored under various light sources and found that different color changes were induced in tablets. In this study, we focused on Perlodel ® tablets, containing 2.5 mg bromocriptine mesylate, as an example for the objective evaluation of the differences in the color change of tablets when stored under LED lighting and fluorescent lighting. High-performance liquid chromatography (HPLC) analysis of part of the tablet surface area revealed a change from white to light brown or dark brown after 28 days of irradiation, with a residual concentration of bromocriptine mesylate of 85.5 % under fluorescent lighting, 85.6 % under daylight-color LED lighting, 90.3 % under bulb-color LED lighting, and 99.2 % in the dark. In addition, the ultraviolet (UV)-visible spectral study of the absorbance of a photo-product at 400-550 nm indicated that the color change of the Perlodel® 2.5 mg tablet was caused by photochemical degradation of bromocriptine mesylate. Thus, this analysis of the photochemical changes in drugs stored under different light sources demonstrated the potency of LED lights. Through the objective evaluation of the color change, the cause of the color change was determined; this will allow us to develop a strategy that minimizes possible disadvantages to patients, such as a decrease in treatment efficacy owing to decomposition of the main component or adverse caused by decomposed matter.
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29
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Yokoyama S, Otomo A, Hadano S, Kimura H. An open-type microdevice to improve the quality of fluorescence labeling for axonal transport analysis in neurons. Biomicrofluidics 2019; 13:034104. [PMID: 31123536 PMCID: PMC6509043 DOI: 10.1063/1.5090968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/22/2019] [Indexed: 05/12/2023]
Abstract
Abnormal axonal transport of vesicles as well as organelles in a particular set of neurons is implicated in the pathogenesis of many neurodegenerative diseases such as amyotrophic lateral sclerosis, Alzheimer's disease, and Parkinson's disease. Although various types of microfluidic multicompartmental devices with closed microchannels have been recently developed and widely used for axonal transport analysis, most of the existing devices are troublesome and time-consuming to handle, such as culture maintenances, sample collections, and immunocytochemistry. In this study, we overcome such inherent shortcomings by developing a novel open-type device that enables easy cell maintenance and sample collections. In our device, microgrooves instead of microchannels were directly fabricated on a glass substrate, thereby making possible a high-resolution optical observation. Compared with the conventional closed-type devices, our newly designed device allowed us to efficiently and precisely label the axonal acidic vesicles by fluorescent dyes, facilitating a high-throughput analysis of axonal vesicular transport. The present novel device, as a user-friendly and powerful tool, can be implemented in molecular and cellular pathogenesis studies on neurological diseases.
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Affiliation(s)
| | | | - S. Hadano
- Department of Molecular Life Sciences, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - H. Kimura
- Author to whom correspondence should be addressed:
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30
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Guo X, Noguchi H, Ishii N, Homma T, Hamada T, Hiraki T, Zhang J, Matsuo K, Yokoyama S, Ishibashi H, Fukushige T, Kanekura T, Fujii J, Uramoto H, Tanimoto A, Yamada S. The Association of Peroxiredoxin 4 with the Initiation and Progression of Hepatocellular Carcinoma. Antioxid Redox Signal 2019; 30:1271-1284. [PMID: 29687726 DOI: 10.1089/ars.2017.7426] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AIMS Peroxiredoxin 4 (PRDX4) is a member of the peroxiredoxin family of antioxidant enzymes. Previously, we reported that PRDX4 can restrain the initiation and progression of nonalcoholic steatohepatitis by reducing local and systemic reactive oxygen species (ROS) levels. Oxidative stress is recognized as a key factor in hepatocarcinogenesis, and a high ROS level has also been found in hepatocellular carcinoma (HCC). Here, our aim is to investigate roles of PRDX4 in the initiation and progression of HCC. RESULTS In this study, for hepatocarcinogenesis, wild-type (WT), PRDX4 knockout (PRDX4-/y), and human PRDX4 transgenic (hPRDX4+/+) mice were given a weekly intraperitoneal injection of diethylnitrosamine for 25 weeks. The HCC incidence was higher in PRDX4-/y mice than in WT or hPRDX4+/+ mice. Intrahepatic and circulating oxidative stress and inflammatory cell infiltration in the liver were obviously decreased in hPRDX4+/+ mice, compared with WT mice. Furthermore, in our cohort study, human HCC specimens with low expression of PRDX4 had higher ROS levels and a highly malignant phenotype, which was associated with a reduced overall survival, compared with those with high PRDX4 expression. However, in human HCC cell lines, PRDX4 knockdown led to a rapidly increased intracellular ROS level and suppressed cell proliferation, inducing cell death. Innovation and Conclusion: Our results clearly indicate that PRDX4 has an inhibitory effect in the initiation of HCC, but a dual (inhibitory or promoting) role in the progression of HCC, suggesting the potential utility of PRDX4 activators or inhibitors as therapy for different stages and phenotypes of HCC.
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Affiliation(s)
- Xin Guo
- 1 Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan.,2 Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.,3 Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Hirotsugu Noguchi
- 4 Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Naoki Ishii
- 5 Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Takujiro Homma
- 5 Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Taiji Hamada
- 3 Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Tsubasa Hiraki
- 3 Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Jing Zhang
- 1 Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Kei Matsuo
- 3 Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Seiya Yokoyama
- 3 Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Hiroaki Ishibashi
- 6 Department of Oral and Maxillofacial Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - Tomoko Fukushige
- 7 Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Takuro Kanekura
- 7 Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Junichi Fujii
- 5 Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Hidetaka Uramoto
- 8 Department of Thoracic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - Akihide Tanimoto
- 3 Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Sohsuke Yamada
- 1 Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan.,3 Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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31
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Nishihara M, Morikawa N, Yokoyama S, Nishikura K, Yasuhara M, Matsuo H. Risk factors increasing blood pressure in Japanese colorectal cancer patients treated with bevacizumab. Pharmazie 2019; 73:671-675. [PMID: 30396388 DOI: 10.1691/ph.2018.8664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Bevacizumab has been reported to increase blood pressure. However, the factors, including patient characteristics and laboratory data contributing to this side effect remain unclear. Therefore, we investigated the relationships between increased blood pressure and bevacizumab administration, patient characteristics, and laboratory data. Between April 2007 and January 2018, factor analysis was retrospectively conducted by monitoring increases in blood pressure, the status of bevacizumab administration, patient characteristics, and laboratory data before the first administration in Japanese patients with colorectal cancer who satisfied the criteria for this study. Sixty-seven patients were included, 34 of whom (50.7%) had an increase in blood pressure after bevacizumab administration. On univariate analysis, liver metastasis, antihypertensive drug use, systolic blood pressure at rest before the first bevacizumab administration, body mass index, creatinine, and blood platelet count were significantly different between the two groups. Multivariate analysis was conducted using increased blood pressure as an objective variable and the factors extracted by the univariate analysis as explanatory variables. The results suggested that liver metastasis, antihypertensive drugs, systolic blood pressure at rest before the first bevacizumab administration, and creatinine were associated with the increase in blood pressure. Furthermore, a log-rank test performed based on Kaplan-Meier curves demonstrated that liver metastasis in patients not taking antihypertensive drugs and antihypertensive drug use in patients without liver metastasis were significantly associated with increased blood pressure. Additionally, liver metastasis in patients with antihypertensive drug use was significantly associated with increased blood pressure. Our findings suggest that liver metastasis and antihypertensive drug use, which was previously reported, are risk factors for increased blood pressure.
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32
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Ohno Y, Egawa T, Yokoyama S, Fujiya H, Sugiura T, Ohira Y, Yoshioka T, Goto K. MENS-associated increase of muscular protein content via modulation of caveolin-3 and TRIM72. Physiol Res 2019; 68:265-273. [PMID: 30628834 DOI: 10.33549/physiolres.933992] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Microcurrent electrical neuromuscular stimulation (MENS) is known as an extracellular stimulus for the regeneration of injured skeletal muscle in sports medicine. However, the effects of MENS-associated increase in muscle protein content are not fully clarified. The purpose of this study was to investigate the effects of MENS on the muscular protein content, intracellular signals, and the expression level of caveolin-3 (Cav-3), tripartite motif-containing 72 (TRIM72) and MM isoenzyme of creatine kinase (CK-MM) in skeletal muscle using cell culture system. C2C12 myotubes on the 7th day of differentiation phase were treated with MENS (intensity: 10-20 microA, frequency: 0.3 Hz, pulse width: 250 ms, stimulation time: 15-120 min). MENS-associated increase in the protein content of myotubes was observed, compared to the untreated control level. MENS upregulated the expression of Cav-3, TRIM72, and CK-MM in myotubes. A transient increase in phosphorylation level of Akt was also observed. However, MENS had no effect on the phosphorylation level of p42/44 extracellular signal-regulated kinase-1/2 and 5'AMP-activated protein kinase. MENS may increase muscle protein content accompanied with a transient activation of Akt and the upregulation of Cav-3 and TRIM72.
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Affiliation(s)
- Y Ohno
- Department of Physiology, Graduate School of Health Sciences, Toyohashi SOZO University, Aichi, Japan.
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33
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Nomura H, Sekine M, Yokoyama S, Takeshima N, Arai M, Nakamura S. Clinical background and outcomes of risk-reducing salpingo-oophorectomy for patients with hereditary breast and ovarian cancer in Japan. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy436.019] [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: 11/13/2022] Open
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34
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Zhang J, Guo X, Hamada T, Yokoyama S, Nakamura Y, Zheng J, Kurose N, Ishigaki Y, Uramoto H, Tanimoto A, Yamada S. Protective Effects of Peroxiredoxin 4 (PRDX4) on Cholestatic Liver Injury. Int J Mol Sci 2018; 19:ijms19092509. [PMID: 30149550 PMCID: PMC6163182 DOI: 10.3390/ijms19092509] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/16/2018] [Accepted: 08/21/2018] [Indexed: 12/16/2022] Open
Abstract
Accumulating evidence indicates that oxidative stress plays a critical role in initiating the progression of inflammatory and fibrotic liver diseases, including cholestatic hepatitis. Peroxiredoxin 4 (PRDX4) is a secretory antioxidase that protects against oxidative damage by scavenging reactive oxygen species (ROS) in both the intracellular compartments and extracellular space. In this study, we examined the in vivo net effects of PRDX4 overexpression in a murine model of cholestasis. To induce cholestatic liver injury, we subjected C57BL/6J wild-type (WT) or human PRDX4 (hPRDX4) transgenic (Tg) mice to sham or bile duct ligation (BDL) surgery for seven days. Our results showed that the liver necrosis area was significantly suppressed in Tg BDL mice with a reduction in the severity of liver injuries. Furthermore, PRDX4 overexpression markedly reduced local and systemic oxidative stress generated by BDL. In addition, suppression of inflammatory cell infiltration, reduced proliferation of hepatocytes and intrahepatic bile ducts, and less fibrosis were also found in the liver of Tg BDL mice, along with a reduced mortality rate after BDL surgery. Interestingly, the composition of the hepatic bile acids (BAs) was more beneficial for Tg BDL mice than for WT BDL mice, suggesting that PRDX4 overexpression may affect BA metabolism during cholestasis. These features indicate that PRDX4 plays an important role in protecting against liver injury following BDL and might be a promising therapeutic modality for cholestatic diseases.
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Affiliation(s)
- Jing Zhang
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
| | - Xin Guo
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
| | - Taiji Hamada
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan.
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan.
| | - Yuka Nakamura
- Medical Research Institute, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
| | - Jianbo Zheng
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
| | - Nozomu Kurose
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
| | - Yasuhito Ishigaki
- Medical Research Institute, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
| | - Hidetaka Uramoto
- Department of Thoracic Surgery, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan.
| | - Sohsuke Yamada
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, 1-1 Uchinada, Ishikawa 920-0293, Japan.
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35
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Ishizawa M, Inoue T, Tobiume A, Hasui Y, Yokoyama S, Ishikawa S, Matsunaga K, Mantani K, Miyake Y, Ishikawa K, Tsuji T, Murakami K, Nishimoto N, Noma T, Minamino T. P1936Multiple measurements with an automated blood pressure monitor can detect atrial fibrillation with high sensitivity and specificity in general cardiac patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1936] [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: 11/14/2022] Open
Affiliation(s)
- M Ishizawa
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - T Inoue
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - A Tobiume
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - Y Hasui
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - S Yokoyama
- Kagawa University, Emergency and Disaster Medicine, Kagawa, Japan
| | - S Ishikawa
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - K Matsunaga
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - K Mantani
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - Y Miyake
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - K Ishikawa
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - T Tsuji
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - K Murakami
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - N Nishimoto
- Kagawa University, Clinical Research Support Center, Kagawa, Japan
| | - T Noma
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
| | - T Minamino
- Kagawa University, Cardiorenal Cerebrovascular Medicine, Kagawa, Japan
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36
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Honjo K, Hamada T, Yoshimura T, Yokoyama S, Yamada S, Tan YQ, Leung LK, Nakamura N, Ohi Y, Higashi M, Tanimoto A. PCP4/PEP19 upregulates aromatase gene expression via CYP19A1 promoter I.1 in human breast cancer SK-BR-3 cells. Oncotarget 2018; 9:29619-29633. [PMID: 30038708 PMCID: PMC6049867 DOI: 10.18632/oncotarget.25651] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/23/2018] [Indexed: 12/24/2022] Open
Abstract
The Purkinje cell protein 4/peptide 19 (PCP4/PEP19) is a novel breast cancer cell expressing peptide, originally found in the neural cells as an anti-apoptotic factor, could inhibit cell apoptosis and enhance cell migration and invasion in human breast cancer cell lines. The expression of PCP4/PEP19 is induced by estrogens in estrogen receptor-positive (ER+) MCF-7 cells but also highly expressed in ER- SK-BR-3 cells. In this study, we investigated the effects of PCP4/PEP19 on aromatase gene expression in MCF-7 and SK-BR-3 human breast cancer cells. In SK-BR-3 cells but not in MCF-7 cells, PCP4/PEP19 knockdown by siRNA silencing decreased the aromatase expression in gene transcriptional level. When PCP4/PEP19 was overexpressed by CMV promoter-driven PCP4/PEP19 expressing plasmid transfection, aromatase gene transcription increased in SK-BR-3 cells. This aromatase gene transcription is mainly mediated through promoter region PI.1, which is usually active in the placental tissue but not in the breast cancer tissue. These results indicate a new function of PCP4/PEP19 that would enhance aromatase gene upregulation to supply estrogens in heterogeneous cancer microenvironment.
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Affiliation(s)
- Kie Honjo
- Department of Oral Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Taiji Hamada
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Takuya Yoshimura
- Department of Oral Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Seiya Yokoyama
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Sohsuke Yamada
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.,Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Yan-Qin Tan
- Faculty of Science, School of Life Sciences, Food and Nutritional Science Programme, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Lai K Leung
- Faculty of Science, School of Life Sciences, Food and Nutritional Science Programme, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Norifumi Nakamura
- Department of Oral Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yasuyo Ohi
- Department of Pathology, Sagara Hospital, Social Medical Corporation Hakuaikai, Kagoshima, Japan
| | - Michiyo Higashi
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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Ohno Y, Oyama A, Kaneko H, Egawa T, Yokoyama S, Sugiura T, Ohira Y, Yoshioka T, Goto K. Lactate increases myotube diameter via activation of MEK/ERK pathway in C2C12 cells. Acta Physiol (Oxf) 2018; 223:e13042. [PMID: 29377587 DOI: 10.1111/apha.13042] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 09/05/2017] [Revised: 01/16/2018] [Accepted: 01/21/2018] [Indexed: 12/22/2022]
Abstract
AIM Lactate is produced in and released from skeletal muscle cells. Lactate receptor, G-protein-coupled receptor 81 (GPR81), is expressed in skeletal muscle cells. However, a physiological role of extracellular lactate on skeletal muscle is not fully clarified. The purpose of this study was to investigate extracellular lactate-associated morphological changes and intracellular signals in C2C12 skeletal muscle cells. METHODS Mouse myoblast C2C12 cells were differentiated for 5 days to form myotubes. Sodium lactate (lactate) or GPR81 agonist, 3,5-dihydroxybenzoic acid (3,5-DHBA), was administered to the differentiation medium. RESULTS Lactate administration increased the diameter of C2C12 myotubes in a dose-dependent manner. Administration of 3,5-DHBA also increased myotube diameter. Not only lactate but also 3,5-DHBA upregulated the phosphorylation level of mitogen-activated protein kinase kinase 1/2 (MEK1/2), p42/44 extracellular signal-regulated kinase-1/2 (ERK1/2) and p90 ribosomal S6 kinase (p90RSK). MEK inhibitor U0126 depressed the phosphorylation of ERK-p90RSK and increase in myotube diameter induced by lactate. On the other hand, both lactate and 3,5-DHBA failed to induce significant responses in the phosphorylation level of Akt, mammalian target of rapamycin, p70 S6 kinase and protein degradation-related signals. CONCLUSION These observations suggest that lactate-associated increase in the diameter of C2C12 myotubes is induced via activation of GRP81-mediated MEK/ERK pathway. Extracellular lactate might have a positive effect on skeletal muscle size.
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Affiliation(s)
- Y. Ohno
- Laboratory of Physiology; School of Health Sciences; Toyohashi SOZO University; Toyohashi Japan
| | - A. Oyama
- Laboratory of Physiology; School of Health Sciences; Toyohashi SOZO University; Toyohashi Japan
| | - H. Kaneko
- Laboratory of Physiology; School of Health Sciences; Toyohashi SOZO University; Toyohashi Japan
| | - T. Egawa
- Department of Physiology; Graduate School of Health Sciences; Toyohashi SOZO University; Toyohashi Japan
| | - S. Yokoyama
- Laboratory of Physiology; School of Health Sciences; Toyohashi SOZO University; Toyohashi Japan
| | - T. Sugiura
- Faculty of Education; Yamaguchi University; Yamaguchi Japan
| | - Y. Ohira
- Graduate School of Health and Sports Science; Doshisha University; Kyotanabe Japan
| | | | - K. Goto
- Laboratory of Physiology; School of Health Sciences; Toyohashi SOZO University; Toyohashi Japan
- Department of Physiology; Graduate School of Health Sciences; Toyohashi SOZO University; Toyohashi Japan
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Yoshino A, Okamoto Y, Okada G, Takamura M, Ichikawa N, Shibasaki C, Yokoyama S, Doi M, Jinnin R, Yamashita H, Horikoshi M, Yamawaki S. Changes in resting-state brain networks after cognitive-behavioral therapy for chronic pain. Psychol Med 2018; 48:1148-1156. [PMID: 28893330 DOI: 10.1017/s0033291717002598] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Cognitive-behavioral therapy (CBT) is thought to be useful for chronic pain, with the pathology of the latter being closely associated with cognitive-emotional components. However, there are few resting-state functional magnetic resonance imaging (R-fMRI) studies. We used the independent component analysis method to examine neural changes after CBT and to assess whether brain regions predict treatment response. METHODS We performed R-fMRI on a group of 29 chronic pain (somatoform pain disorder) patients and 30 age-matched healthy controls (T1). Patients were enrolled in a weekly 12-session group CBT (T2). We assessed selected regions of interest that exhibited differences in intrinsic connectivity network (ICN) connectivity strength between the patients and controls at T1, and compared T1 and T2. We also examined the correlations between treatment effects and rs-fMRI data. RESULTS Abnormal ICN connectivity of the orbitofrontal cortex (OFC) and inferior parietal lobule within the dorsal attention network (DAN) and of the paracentral lobule within the sensorimotor network in patients with chronic pain normalized after CBT. Higher ICN connectivity strength in the OFC indicated greater improvements in pain intensity. Furthermore, ICN connectivity strength in the dorsal posterior cingulate cortex (PCC) within the DAN at T1 was negatively correlated with CBT-related clinical improvements. CONCLUSIONS We conclude that the OFC is crucial for CBT-related improvement of pain intensity, and that the dorsal PCC activation at pretreatment also plays an important role in improvement of clinical symptoms via CBT.
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Affiliation(s)
- A Yoshino
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - Y Okamoto
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - G Okada
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - M Takamura
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - N Ichikawa
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - C Shibasaki
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - S Yokoyama
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - M Doi
- Department of Dental Anesthesiology,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - R Jinnin
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - H Yamashita
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - M Horikoshi
- National Center for Cognitive Behavior Therapy and Research,National Center of Neurology and Psychiatry (NCNP),4-1-1, Ogawahigashicho,Kodaira,Tokyo 187-0031,Japan
| | - S Yamawaki
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
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Aoyama H, Ebata T, Hattori M, Takano M, Yamamoto H, Inoue M, Asaba Y, Ando M, Nagino M, Aoba T, Kaneoka Y, Arai T, Shimizu Y, Kiriyama M, Sakamoto E, Miyake H, Takara D, Shirai K, Ohira S, Kobayashi S, Kato Y, Yamaguchi R, Hayashi E, Miyake T, Mizuno S, Sato T, Suzuki K, Hashimoto M, Kawai S, Matsubara H, Kato K, Yokoyama S, Suzumura K. Reappraisal of classification of distal cholangiocarcinoma based on tumour depth. Br J Surg 2018; 105:867-875. [DOI: 10.1002/bjs.10869] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 02/22/2018] [Accepted: 03/02/2018] [Indexed: 02/02/2023]
Abstract
Abstract
Background
In the eighth edition of the AJCC cancer staging classification, the T system for distal cholangiocarcinoma (DCC) has been revised from a layer-based to a depth-based approach. The aim of this study was to propose an optimal T classification using a measured depth in resectable DCC.
Methods
Patients who underwent pancreatoduodenectomy for DCC at 32 hospitals between 2001 and 2010 were included. The distance between the level of the naive bile duct and the deepest cancer cells was measured as depth of invasion (DOI). Invasive cancer foci were measured as invasive tumour thickness (ITT). Log rank χ2 scores were used to determine the cut-off points, and concordance index (C-index) to assess the survival discrimination of each T system.
Results
Among 404 patients, DOI was measurable in 182 (45·0 per cent) and ITT was measurable in all patients, with median values of 2·3 and 5·6 mm respectively. ITT showed a positive correlation with DOI (rs = 0·854, P < 0·001), and the cut-off points for prognosis were 1, 5 and 10 mm. Median survival time was shorter with increased ITT: 12·4 years for ITT below 1 mm, 5·2 years for ITT at least 1 mm but less than 5 mm, 3·0 years for ITT at least 5 mm but less than 10 mm, and 1·5 years for ITT 10 mm or more (P < 0·001). This classification exhibited more favourable prognostic discrimination than the T systems of the seventh and eighth editions of the AJCC (C-index 0·646, 0·622 and 0·624 respectively).
Conclusion
ITT is an accurate approach for depth assessment in DCC. The four-tier ITT classification with cut-off points of 1, 5 and 10 mm seems to be a better T system than those in the seventh and eighth editions of the AJCC classification.
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Affiliation(s)
- H Aoyama
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Ebata
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Hattori
- Department of Surgery, Nishichita General Hospital, Tokai, Japan
| | - M Takano
- Department of Surgery, Asahi Rousai Hospital, Owariasahi, Japan
| | - H Yamamoto
- Department of Surgery, Tokai Hospital, Nagoya, Japan
| | - M Inoue
- Department of Surgery, Tokoname City Hospital, Tokoname, Japan
| | - Y Asaba
- Department of Surgery, JA Shizuoka Kohseiren Enshu Hospital, Hamamatsu, Japan
| | - M Ando
- Centre for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - M Nagino
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Aoba
- Toyohashi Municipal Hospital, Toyohashi
| | | | - T Arai
- Anjo Kosei Hospital, Anjo
| | - Y Shimizu
- Aichi Cancer Centre Hospital, Nagoya
| | | | - E Sakamoto
- Japanese Red Cross Nagoya Daini Hospital, Nagoya
| | - H Miyake
- Japanese Red Cross Nagoya Daiichi Hospital, Nagoya
| | - D Takara
- Kiryu Kosei General Hospital, Kiryu
| | | | | | | | - Y Kato
- Nagoya Ekisaikai Hospital, Nagoya
| | | | - E Hayashi
- Japan Community Health Care Organization Chukyo Hospital, Nagoya
| | | | - S Mizuno
- Shizuoka Welfare Hospital, Shizuoka
| | - T Sato
- Hekinan Municipal Hospital, Hekinan
| | - K Suzuki
- Japan Community Health Care Organization Kani Tono Hospital, Kani
| | | | - S Kawai
- Tsushima City Hospital, Tsushima
| | | | - K Kato
- Inazawa Municipal Hospital, Inazawa
| | | | - K Suzumura
- Shizuoka Saiseikai General Hospital, Shizuoka
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Yamauchi H, Okawa M, Yokoyama S, Nakamura S, Arai M. Abstract PD1-09: High incidence rate of occult cancer in risk reducing mastectomy specimens despite thorough assessment with breast MRI and ultrasound-findings from the hereditary breast and ovarian cancer registration 2016 in Japan. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-pd1-09] [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
Introduction:One of the preemptive strategies for Hereditary Breast and Ovarian Cancer (HBOC) is prophylactic surgery. Data for risk reducing mastectomy (RRM) clearly showed a risk reduction of more than 90% for breast cancer.
Method: We report here the statistical results of the HBOC registration up to 2016. The subjects of this study were those who underwent BRCA1/2 genetic testing during the study period, at 7 medical institutions.
Results: A total of 1527 probands underwent BRCA testing; 1125 cases (73.7%) were negative for BRCA1/2 mutation, and 297 cases (19.5%) were positive, while 105 cases (6.9%) had uncertain results. Among the 297 cases with positive results, 157 cases (10.3%) were positive for BRCA1, 139 cases (9.1%) for BRCA2, and 1 case (0.1%) was positive for both.The mean age at breast cancer diagnosis was 41.7 years in BRCA1/2 mutation positive and 45.8 years in negative cases. In comparison to the National Registration for Breast Cancer Incidence 2011 in Japan (n=72,472), breast cancer with BRCA mutations occurred at a younger age. Among 359 cases of triple negative breast cancer, 101 cases (28.3%) were BRCA1 mutation positive while 18 cases (5.0%) were BRCA2 mutation positive.
Three hundred seventy cases underwent genetic testing prior to surgery, as a deciding factor for the surgical procedure. Among BRCA mutation positive cases, 58 cases (87.9%) chose to undergo total mastectomy, and 8 cases (12.1%) chose breast conserving surgery (BCS); on the other hand, 141 cases (46.4%) of BRCA mutation negative cases chose total mastectomy and 158 cases (52.0%) chose BCS.
Four cases of new onset breast cancers were observed among the 55 cases of previvors (mean observation period: 2.5 years; incidence rate: 2.9%/Y). Among the 73 BRCA1/2 mutation positive women who underwent BCS, 3 ipsilateral breast cancer cases were observed (mean observation period: 3.5 years; incidence rate: 1.2%/Y), while 2 cases were noted among 477 cases of BRCA1/2 mutation negative cases (mean observation period: 2.2 years; incidence rate: 0.2%/Y). Of 189 BRCA1/2 mutation positive cases with unilateral breast cancer, 8 contralateral breast cancer cases were noted (mean observation period: 3.0 years; incidence rate: 1.4%/Y), while 4 cases of contralateral breast cancer were observed among 892 cases of BRCA1/2 mutation negative cases (mean observation period: 2.2 years; incidence rate: 0.2%/Y).
Fifty-one patients had undergone RRM.Six cases (11.8%) of occult breast cancer were noted in the RRM specimens, among which 2 were BRCA1 positive cases and 4 were BRCA2 positive cases. All of these six cases had undergone extensive imaging work-up prior to surgery by using mammography, ultrasound and breast MRI.
Conclusions: The incidence rate of occult cancer after risk-reducing mastectomy was reported to be about 5% in the high-risk population. Our report showed a relatively higher incidence rate of occult cancer at 11.8% among BRCA mutation positive cases, despite thorough pre-operative radiological evaluations, which included a breast MRI. These results suggest the limitations in the use of MRI for the surveillance of patients with BRCA mutations.
Citation Format: Yamauchi H, Okawa M, Yokoyama S, Nakamura S, Arai M. High incidence rate of occult cancer in risk reducing mastectomy specimens despite thorough assessment with breast MRI and ultrasound-findings from the hereditary breast and ovarian cancer registration 2016 in Japan [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 PD1-09.
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Affiliation(s)
- H Yamauchi
- Breast Center, St. Luke's International Hospital, Tokyo, Japan; Breast Center, Showa University, Tokyo, Japan; Clinical Genetic Oncology, Tokyo, Japan
| | - M Okawa
- Breast Center, St. Luke's International Hospital, Tokyo, Japan; Breast Center, Showa University, Tokyo, Japan; Clinical Genetic Oncology, Tokyo, Japan
| | - S Yokoyama
- Breast Center, St. Luke's International Hospital, Tokyo, Japan; Breast Center, Showa University, Tokyo, Japan; Clinical Genetic Oncology, Tokyo, Japan
| | - S Nakamura
- Breast Center, St. Luke's International Hospital, Tokyo, Japan; Breast Center, Showa University, Tokyo, Japan; Clinical Genetic Oncology, Tokyo, Japan
| | - M Arai
- Breast Center, St. Luke's International Hospital, Tokyo, Japan; Breast Center, Showa University, Tokyo, Japan; Clinical Genetic Oncology, Tokyo, Japan
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Yokoyama S, Higashi M, Kitamoto S, Oeldorf M, Knippschild U, Kornmann M, Maemura K, Kurahara H, Wiest E, Hamada T, Kitazono I, Goto Y, Tasaki T, Hiraki T, Hatanaka K, Mataki Y, Taguchi H, Hashimoto S, Batra SK, Tanimoto A, Yonezawa S, Hollingsworth MA. Aberrant methylation of MUC1 and MUC4 promoters are potential prognostic biomarkers for pancreatic ductal adenocarcinomas. Oncotarget 2018; 7:42553-42565. [PMID: 27283771 PMCID: PMC5173155 DOI: 10.18632/oncotarget.9924] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 05/01/2016] [Indexed: 01/14/2023] Open
Abstract
Pancreatic cancer is still a disease of high mortality despite availability of diagnostic techniques. Mucins (MUC) play crucial roles in carcinogenesis and tumor invasion in pancreatic neoplasms. MUC1 and MUC4 are high molecular weight transmembrane mucins. These are overexpressed in many carcinomas, and high expression of these molecules is a risk factor associated with poor prognosis. We evaluated the methylation status of MUC1 and MUC4 promoter regions in pancreatic tissue samples from 169 patients with various pancreatic lesions by the methylation specific electrophoresis (MSE) method. These results were compared with expression of MUC1 and MUC4, several DNA methylation/demethylation factors (e.g. ten-eleven translocation or TET, and activation-induced cytidine deaminase or AID) and CAIX (carbonic anhydrase IX, as a hypoxia biomarker). These results were also analyzed with clinicopathological features including time of overall survival of PDAC patients. We show that the DNA methylation status of the promoters of MUC1 and MUC4 in pancreatic tissue correlates with the expression of MUC1 and MUC4 mRNA. In addition, the expression of several DNA methylation/demethylation factors show a significant correlation with MUC1 and MUC4 methylation status. Furthermore, CAIX expression significantly correlates with the expression of MUC1 and MUC4. Interestingly, our results indicate that low methylation of MUC1 and/or MUC4 promoters correlates with decreased overall survival. This is the first report to show a relationship between MUC1 and/or MUC4 methylation status and prognosis. Analysis of epigenetic changes in mucin genes may be of diagnostic utility and one of the prognostic predictors for patients with PDAC.
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Affiliation(s)
- Seiya Yokoyama
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan.,Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michiyo Higashi
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan.,Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Sho Kitamoto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Monika Oeldorf
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Uwe Knippschild
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Marko Kornmann
- Department of General and Visceral Surgery, University of Ulm, Ulm, Germany
| | - Kosei Maemura
- Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.,Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiroshi Kurahara
- Department of Digestive Surgery, Breast and Thyroid Surgery, Graduate School of Medical Sciences, Kagoshima University, Kagoshima, Japan
| | - Edwin Wiest
- Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Tomofumi Hamada
- Department of Oral Surgery, Kagoshima University Medical and Dental Hospital, Kagoshima, Japan
| | - Ikumi Kitazono
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Yuko Goto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Takashi Tasaki
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Tsubasa Hiraki
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Kazuhito Hatanaka
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Yuko Mataki
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Hiroki Taguchi
- Department of Digestive and Life-Style Related Diseases, Human and Environmental Sciences, Health Research, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Shinichi Hashimoto
- Department of Digestive and Life-Style Related Diseases, Human and Environmental Sciences, Health Research, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - Akihide Tanimoto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Suguru Yonezawa
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Kagoshima, Japan
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
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Takahashi S, Fujiwara Y, Matsubara N, Tomomatsu J, Iwasa S, Yamasaki A, Endo C, Yokoyama S, Doi T. Phase 1 study of ipatasertib (AKT inhibitor) for investigating safety, tolerability, pharmacokinetics (PK), efficacy, and biomarkers in Japanese patients (pts) with solid tumors including castration-resistant prostate cancer (CRPC). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.028] [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: 11/14/2022] Open
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Matsuda A, Higashi M, Nakagawa T, Yokoyama S, Kuno A, Yonezawa S, Narimatsu H. Assessment of tumor characteristics based on glycoform analysis of membrane-tethered MUC1. J Transl Med 2017; 97:1103-1113. [PMID: 28581490 DOI: 10.1038/labinvest.2017.53] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 03/29/2017] [Accepted: 04/01/2017] [Indexed: 12/12/2022] Open
Abstract
Clinical tissue specimens are useful for pathological diagnosis, which is, in some cases, supported by visualization of biomolecule localization. In general, diagnostic specificity in molecular pathology is increased by the acquisition of a probe to distinguish the modification of isomers. Although glycosylation is one of the candidate modifications in a protein, comparative glycan analysis of disease-associated proteins derived from a single tissue section is still challenging because of the lack of analytical sensitivity. Here we demonstrate a possible method for differential glycoform analysis of an endogenous tumor-associated glycoprotein MUC1 by an antibody-overlay lectin microarray. Tissue sections (5 μm thick) of patients with cholangiocarcinoma (CCA; n=21) and pancreatic ductal adenocarcinoma (PDAC; n=50) were stained with an anti-MUC1 antibody MY.1E12 that was established as a monoclonal antibody recognizing an MUC1 glycosylation isoform with a sialyl-core 1 structure (NeuAcα2-3galactosyl β1-3-N-acetylgalactosamine). MY.1E12-positive tissue areas (2.5 mm2) were selectively dissected with a laser capture microdissection procedure. The membrane MUC1 was enriched by immunoprecipitation with MY.1E12 and subjected to lectin microarray analysis. Even though the reactivities of MY.1E12 between CCA and PDAC were similar, the lectin-binding patterns varied. We found Maackia amurensis leukoagglutinin and pokeweed lectin distinguished MY.1E12-reactive MUC1 of CCA from that of PDAC. Moreover, MUC1 with M. amurensis hemagglutinin (MAH) reactivity potentially reflected the degree of malignancy. These results were confirmed with MAH-MY.1E12 double fluorescent immunostaining. These glycan changes on MUC1 were detected with high sensitivity owing to the cluster effect of immobilized lectins on a tandem repeat peptide antigen covered with highly dense glycosylation such as mucin. Our approach provides the information to investigate novel glycodynamics in biology, for example, glycoalteration, as well as diseases related to not only MUC1 but also other membrane proteins.
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Affiliation(s)
- Atsushi Matsuda
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Michiyo Higashi
- Department of Pathology, Field of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - Tomomi Nakagawa
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Seiya Yokoyama
- Department of Pathology, Field of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - Atsushi Kuno
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Suguru Yonezawa
- Department of Pathology, Field of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - Hisashi Narimatsu
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
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Amano H, Atarashi M, Noguchi H, Yokoyama S, Ichimasa Y, Ichimasa M. Formation of Organically Bound Tritium in Plants during the 1994 Chronic HT Release Experiment at Chalk River. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst95-a30503] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Amano
- Japan Atomic Energy Research Institute Tokai-mura, Ibaraki-ken 319-11, Japan TEL 81-29-282-5090
| | - M. Atarashi
- Japan Atomic Energy Research Institute Tokai-mura, Ibaraki-ken 319-11, Japan TEL 81-29-282-5090
| | - H. Noguchi
- Japan Atomic Energy Research Institute Tokai-mura, Ibaraki-ken 319-11, Japan TEL 81-29-282-5090
| | - S. Yokoyama
- Japan Atomic Energy Research Institute Tokai-mura, Ibaraki-ken 319-11, Japan TEL 81-29-282-5090
| | - Y. Ichimasa
- Faculty of Science, Ibaraki University 2-1-1 Bunkyo, Mito-shi, Ibaraki-ken 310, Japan TEL 81-29-226-1621
| | - M. Ichimasa
- Faculty of Science, Ibaraki University 2-1-1 Bunkyo, Mito-shi, Ibaraki-ken 310, Japan TEL 81-29-226-1621
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Ichimasa Y, Ichimasa M, Jiang H, Katsuno K, Noguchi H, Yokoyama S, Amano H, Atarashi M. In VitroDetermination of HT Oxidation Activity and Tritium Concentration in Soil and Vegetation during the Chronic HT Release Experiment at Chalk River. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst95-a30515] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Ichimasa
- Faculty of Science, Ibaraki University, Bunkyo, Mito-shi, Ibaraki-ken, 310, Japan 81-29-228-8379
| | - M. Ichimasa
- Faculty of Science, Ibaraki University, Bunkyo, Mito-shi, Ibaraki-ken, 310, Japan 81-29-228-8379
| | - H. Jiang
- Faculty of Science, Ibaraki University, Bunkyo, Mito-shi, Ibaraki-ken, 310, Japan 81-29-228-8379
| | - K. Katsuno
- Faculty of Science, Ibaraki University, Bunkyo, Mito-shi, Ibaraki-ken, 310, Japan 81-29-228-8379
| | - H. Noguchi
- Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan 81-29-282-5195
| | - S. Yokoyama
- Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan 81-29-282-5195
| | - H. Amano
- Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan 81-29-282-5195
| | - M. Atarashi
- Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan 81-29-282-5195
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Noguchi H, Yokoyama S, Kinouchi N, Murata M, Amano H, Atarashi M, Ichimasa Y, Ichimasa M. Tritium Behavior on a Cultivated Plot in the 1994 Chronic HT Release Experiment at Chalk River. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst95-a30523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Noguchi
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-11, Japan 81-292-82-5195
| | - S. Yokoyama
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-11, Japan 81-292-82-5195
| | - N. Kinouchi
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-11, Japan 81-292-82-5195
| | - M. Murata
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-11, Japan 81-292-82-5195
| | - H. Amano
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-11, Japan 81-292-82-5195
| | - M. Atarashi
- Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-11, Japan 81-292-82-5195
| | - Y. Ichimasa
- Faculty of Science, Ibaraki University, Mito-shi, Ibaraki-ken, 310, Japan 81-292-26-1621
| | - M. Ichimasa
- Faculty of Science, Ibaraki University, Mito-shi, Ibaraki-ken, 310, Japan 81-292-26-1621
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Tsujinaga S, Iwano H, Murai D, Hayashi T, Yokoyama S, Nishino H, Nakabachi M, Ichikawa A, Abe A, Kawata T, Daimon M, Oonishi T, Sakata Y, Yamada S. P1431Right ventricular strain of a line segment as a feasible parameter of right ventricular systolic function in patients with advanced heart failure referred for left ventricular assist device therapy. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1431] [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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48
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Yokoyama S, Higashi M, Tsutsumida H, Wakimoto J, Hamada T, Wiest E, Matsuo K, Kitazono I, Goto Y, Guo X, Hamada T, Yamada S, Hiraki T, Yonezawa S, Batra SK, Hollingsworth MA, Tanimoto A. TET1-mediated DNA hypomethylation regulates the expression of MUC4 in lung cancer. Genes Cancer 2017; 8:517-527. [PMID: 28680536 PMCID: PMC5489649 DOI: 10.18632/genesandcancer.139] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Lung cancer remains a disease of high mortality, despite advanced diagnostic techniques. Mucins (MUC) play crucial roles in carcinogenesis and tumor invasion in lung neoplasms. Our immunohistochemistry (IHC) studies have shown that high MUC4 expression correlates with a poor outcome. We have also shown that the expression of several mucin genes in cancer cell lines is regulated by DNA methylation. We evaluated the expression level of MUC4, mRNA and several DNA hypomethylation factors in lung tissue samples from 33 patients with various lung lesions. The results indicated that the DNA methylation status of MUC4 matched the expression level of mRNA. In addition, the TET1 (Ten-Eleven Translocation) mRNA showed a significant correlation with the status of DNA methylation of MUC4. Furthermore, the treatment of a lung cancer cell line with TET1 siRNA caused a reduction in MUC4 mRNA expression. Thus, we suggest that TET1 mediated DNA hypomethylation plays a key role in the expression of MUC4. This is the first report that TET1 mediated DNA hypomethylation regulates the expression of MUC4 in lung cancer. The analysis of these epigenetic changes may be useful for diagnosing carcinogenic risk.
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Affiliation(s)
- Seiya Yokoyama
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan.,Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan.,Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, NE, USA
| | - Michiyo Higashi
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan.,Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Hideaki Tsutsumida
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Jouji Wakimoto
- Department of Respiratory Medicine, Minami-kyushu National Hospital, Aira, Japan
| | - Tomofumi Hamada
- Department of Oral Surgery, Kagoshima University Medical and Dental Hospital, Sakuragoaka, Japan
| | - Edwin Wiest
- Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, NE, USA
| | - Kei Matsuo
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Ikumi Kitazono
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Yuko Goto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Xin Guo
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Taiji Hamada
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Sohsuke Yamada
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Tsubasa Hiraki
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Suguru Yonezawa
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, NE, USA
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer, Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, NE, USA
| | - Akihide Tanimoto
- Department of Pathology, Research Field in Medicine and Health Sciences, Medical and Dental Sciences Area, Research and Education Assembly, Kagoshima University, Sakuragoaka, Japan
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Hotta T, Takifuji K, Yokoyama S, Matsuda K, Ieda J, Watanabe T, Tamura K, Mitani Y, Iwamoto H, Takei Y, Mizumoto Y, Tsumura A, Deguchi M, Yamaue H. Horizontal rectal transection using an endolinear stapler for laparoscopic low anterior resection. Tech Coloproctol 2017; 21:311-313. [DOI: 10.1007/s10151-017-1617-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 04/03/2017] [Indexed: 10/19/2022]
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Sugihara S, Tanaka M, Tamari T, Shimada J, Takahashi T, Momoshima N, Fukutani S, Atarashi-Andoh M, Sakuma Y, Yokoyama S, Miyamoto K, Amano H, Yamanishi H, Uda T. Behavior of Environmental Tritium at NIFS Toki Site of Japan. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Sugihara
- Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - M. Tanaka
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki-city, GIFU 509-5292 Japan
| | - T. Tamari
- Kyushu Environmental Evaluation Association, Matsukadai 1-10-1, Higashi-ku, Fukuoka-city, FUKUOKA 813-0004 Japan
| | - J. Shimada
- Kumamoto University, Kurokami 2-39-1, Kumamoto-city, KUMAMOTO 860-8555 Japan
| | - T. Takahashi
- Kyoto University, Asashironishi 2-1010, Kumatori, Sennan-gun, OSAKA 590-0494 Japan
| | - N. Momoshima
- Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - S. Fukutani
- Kyoto University, Asashironishi 2-1010, Kumatori, Sennan-gun, OSAKA 590-0494 Japan
| | - M. Atarashi-Andoh
- Japan Atomic Energy Agency, Shirakata Shirane 2-4, Tokai-mura, Naka-gun, IBARAKI 319-1195 Japan
| | - Y. Sakuma
- Tokyo Institute of Technology, Ookayama 2-12-1-N1-21, Meguro-ku, TOKYO 152-8550 Japan
| | - S. Yokoyama
- Fujita Health University, Dengakugakubo 1-98, Kutsukake-cho, Toyoake, AICHI 470-1192 Japan
| | - K. Miyamoto
- National Institute of Radiological Sciences, Anagawa 4-9-1, Inage-ku, Chiba-shi, CHIBA 263-8555 Japan
| | - H. Amano
- Japan Chemical Analysis Center, Sannou 295-3, Inage-ku, Chiba-shi, CHIBA 263-0002 Japan
| | - H. Yamanishi
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki-city, GIFU 509-5292 Japan
| | - T. Uda
- National Institute for Fusion Science, Oroshi-cho 322-6, Toki-city, GIFU 509-5292 Japan
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