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Matsuda R, Maeoka R, Morimoto T, Nakazawa T, Morisaki Y, Yokoyama S, Kotsugi M, Takeshima Y, Yamada S, Nishimura F, Park YS, Nakagawa I. Pre-treatment systemic inflammation response index and systemic immune inflammation in patients with primary central nerve system lymphoma as a useful prognostic indicator. J Neurooncol 2024:10.1007/s11060-024-04692-5. [PMID: 38658464 DOI: 10.1007/s11060-024-04692-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 04/22/2024] [Indexed: 04/26/2024]
Abstract
PURPOSE The systemic inflammation response index (SIRI) and systemic immune-inflammation index (SII) are based on neutrophil, monocyte, platelet, and lymphocyte counts. The SIRI and SII are used to predict the survival of patients with malignant tumors. It is well known that the inflammatory immune response is closely related to cancer occurrence and progression. In the present study, we evaluated the potential prognostic significance of SIRI and SII in patients with primary central nervous system lymphoma (PCNSL). METHODS Fifty-eight consecutive patients were enrolled in this study between November 2006 and May 2022. Among the 58 patients, 47 patients with sufficient blood test data and follow-up were analyzed. The patients with steroid intake at the time point of the blood test and higher C-reactive protein were excluded. RESULTS The median follow-up and survival times were 31 and 36 months, respectively. The optimal cutoff SIRI value was based on the receiver operating characteristic curve (ROC) for overall survival (OS) and stratified patients into low (< 1.43 × 109/L, n = 22) and high (≥ 1.43 × 109/L, n = 25) SIRI groups. The optimal cutoff SII value based on the ROC for OS stratified patients into low (< 694.9, n = 28) and high (≥ 694.9, n = 19) SII groups. A low SIRI value was associated with longer OS (p = 0.006). Furthermore, a low SII value was associated with longer OS (p = 0.044). The prognostic factors associated with prolonged survival in univariate analysis using the Cox proportional hazard model were age < 65 years, low SIRI, and low SII. The multivariate analysis demonstrated that age < 65 years and low SIRI independently predicted longer OS. CONCLUSION Simple, less expensive, and routinely ordered preoperative blood count assessments such as SIRI and SII predict the OS of patients with PCNSL. This study demonstrated that PCNSL is associated with pre-treatment systemic immune-inflammation states.
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Affiliation(s)
- Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan.
| | - Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Yudai Morisaki
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Shohei Yokoyama
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Masashi Kotsugi
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, 634-8522, Japan
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Park YS, Cho HJ, Kim S. Identification and expression analyses of B3 genes reveal lineage-specific evolution and potential roles of REM genes in pepper. BMC Plant Biol 2024; 24:201. [PMID: 38500065 PMCID: PMC10949715 DOI: 10.1186/s12870-024-04897-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/10/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND The B3 gene family, one of the largest plant-specific transcription factors, plays important roles in plant growth, seed development, and hormones. However, the B3 gene family, especially the REM subfamily, has not been systematically and functionally studied. RESULTS In this study, we performed genome-wide re-annotation of B3 genes in five Solanaceae plants, Arabidopsis thaliana, and Oryza sativa, and finally predicted 1,039 B3 genes, including 231 (22.2%) newly annotated genes. We found a striking abundance of REM genes in pepper species (Capsicum annuum, Capsicum baccatum, and Capsicum chinense). Comparative motif analysis revealed that REM and other subfamilies (ABI3/VP1, ARF, RAV, and HSI) consist of different amino acids. We verified that the large number of REM genes in pepper were included in the specific subgroup (G8) through the phylogenetic analysis. Chromosome location and evolutionary analyses suggested that the G8 subgroup genes evolved mainly via a pepper-specific recent tandem duplication on chromosomes 1 and 3 after speciation between pepper and other Solanaceae. RNA-seq analyses suggested the potential functions of REM genes under salt, heat, cold, and mannitol stress conditions in pepper (C. annuum). CONCLUSIONS Our study provides evolutionary and functional insights into the REM gene family in pepper.
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Affiliation(s)
- Young-Soo Park
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Hye Jeong Cho
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Seungill Kim
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea.
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Matsuda R, Hasegawa M, Tamamoto T, Inooka N, Morimoto T, Maeoka R, Nakazawa T, Ochi T, Miyasaka T, Hontsu S, Yamaki K, Miura S, Yamada S, Nishimura F, Nakagawa I, Park YS, Nakase H. Clinical Results and Hematologic Predictors of Linear Accelerator-Based Stereotactic Radiosurgery or Fractionated Stereotactic Radiotherapy for Brain Metastasis in Patients Aged 75 Years or Older: A Retrospective Study. World Neurosurg 2024; 183:e944-e952. [PMID: 38244685 DOI: 10.1016/j.wneu.2024.01.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
OBJECTIVE This study aimed to evaluate prognostic factors including pre-radiosurgical blood count in elderly patients (EPs) with brain metastasis (BM) who were treated using linear accelerator (LINAC)-based stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (fSRT) with a micro-multileaf collimator. METHODS Between January 2011 and November 2021, 101 consecutive EPs with BM were treated by LINAC-based SRS or fSRT using LINAC with a micro-multileaf collimator. EPs were defined as patients aged ≥75 years. RESULTS The tumors originated from the lungs (n = 90; 89.1%), colon (n = 2; 2.0%), and others (n = 9; 8.8%) in these EPs. The median pretreatment Karnofsky Performance Status was 80 (range, 40-100). The median follow-up time was 10 months (range, 0-76), as was the median survival. The 6-month, 1-year, and 2-year survival in the EP group was 58.3%, 43.2%, and 28.5%, respectively. Freedom from local failure at 6 months and 1 and 2 years was 97%, 95%, and 91.5%, respectively. Freedom from distant failure at 6 months and 1 and 2 years in EPs was 70.6%, 59.4%, and 54.2%, respectively. A high neutrophil/lymphocyte ratio >5.33 was an unfavorable predictor of prognosis for EPs with BMs treated with SRS and fSRT (P < 0.001). In the EPs, the prognostic factors associated with prolonged survival in the Cox proportional hazards model were being female and a good pretreatment Karnofsky Performance Status. CONCLUSIONS The findings of our study highlight the efficacy of LINAC-based SRS and fSRT with a micro-multileaf collimator in the treatment of EPs with BMs. Neutrophil/lymphocyte ratio can be an important factor in treatment decisions for EPs with BMs.
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Affiliation(s)
- Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan.
| | - Masatoshi Hasegawa
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Tetsuro Tamamoto
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan; Department of Medical Informatics, Nara Medical University Hospital, Kashihara, Nara, Japan
| | - Nobuyoshi Inooka
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Tomoko Ochi
- Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Toshiteru Miyasaka
- Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Shigeto Hontsu
- Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kaori Yamaki
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Sachiko Miura
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
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Morimoto T, Nakazawa T, Maeoka R, Matsuda R, Nakamura M, Nishimura F, Yamada S, Nakagawa I, Park YS, Tsujimura T. Bulk RNA sequencing reveals the comprehensive genetic characteristics of human cord blood-derived natural killer cells. Regen Ther 2024; 25:367-376. [PMID: 38405180 PMCID: PMC10891285 DOI: 10.1016/j.reth.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/26/2024] [Accepted: 02/15/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction Innate immune cells are important in tumor immunotherapy. Natural killer cells (NKCs) are also categorized as innate immune cells and can control tumor growth and metastatic spread. Glioblastoma (GBM) is the most common and aggressive primary brain tumor in adults. NKC-based immunotherapy is a promising treatment strategy against GBM. We previously reported a feeder-free expansion system that yielded large-scale highly purified and cytotoxic NKCs derived from human cord blood (CB). In the present study, we performed comprehensive genomic analyses of NKCs generated from human CB (CBNKCs) as compared those from human peripheral blood (PB) (PBNKCs). Methods Frozen T cell-free CB mononuclear cells were cultured with recombinant human interleukin (rhIL)-18 and rhIL-2 in anti-NKp46 and anti-CD16 antibody immobilization settings. After 14-day expansion, the total RNA of the CBNKCs or PBNKCs was extracted and transcriptomic analyses was performed to determine their similarities and differences. We also examined CBNKC and PBNKC activity against a GBM cell line. Results Differential expression gene analysis revealed that some NK activating and inhibitory receptors were significantly downregulated in the CBNKCs compared to PBNKCs. Furthermore, genes related to anti-apoptosis and proliferation were upregulated in the CBNKCs. Enrichment analysis determined that the gene sets related to immune response and cytokines were enriched in the CBNKCs. Gene set enrichment analysis demonstrated that the immune response pathway was upregulated in the CBNKCs. Cytotoxic assays using impedance-based cell analyzer revealed that the CBNKCs enhanced NKC-mediated cytotoxicity on GBM cells as compared to the PBNKCs. Conclusions We demonstrated the characteristics of human CBNKCs. Cell-based therapy using the CBNKCs is promising for treating GBM.
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Affiliation(s)
- Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
- Grandsoul Research Institute for Immunology, Inc., Uda, Nara, 633-2221, Japan
- Clinic Grandsoul Nara, Matsui 8-1, Uda, Nara, 633-2221, Japan
| | - Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Mitsutoshi Nakamura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
- Clinic Grandsoul Nara, Matsui 8-1, Uda, Nara, 633-2221, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Takahiro Tsujimura
- Grandsoul Research Institute for Immunology, Inc., Uda, Nara, 633-2221, Japan
- Clinic Grandsoul Nara, Matsui 8-1, Uda, Nara, 633-2221, Japan
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Morimoto T, Nakazawa T, Matsuda R, Maeoka R, Nishimura F, Nakamura M, Yamada S, Park YS, Tsujimura T, Nakagawa I. Antitumor Effects of Intravenous Natural Killer Cell Infusion in an Orthotopic Glioblastoma Xenograft Murine Model and Gene Expression Profile Analysis. Int J Mol Sci 2024; 25:2435. [PMID: 38397112 PMCID: PMC10889440 DOI: 10.3390/ijms25042435] [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: 01/09/2024] [Revised: 02/09/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Despite standard multimodality treatment, containing maximum safety resection, temozolomide, radiotherapy, and a tumor-treating field, patients with glioblastoma (GBM) present with a dismal prognosis. Natural killer cell (NKC)-based immunotherapy would play a critical role in GBM treatment. We have previously reported highly activated and ex vivo expanded NK cells derived from human peripheral blood, which exhibited anti-tumor effect against GBM cells. Here, we performed preclinical evaluation of the NK cells using an in vivo orthotopic xenograft model, the U87MG cell-derived brain tumor in NOD/Shi-scid, IL-2RɤKO (NOG) mouse. In the orthotopic xenograft model, the retro-orbital venous injection of NK cells prolonged overall survival of the NOG mouse, indirectly indicating the growth-inhibition effect of NK cells. In addition, we comprehensively summarized the differentially expressed genes, especially focusing on the expression of the NKC-activating receptors' ligands, inhibitory receptors' ligands, chemokines, and chemokine receptors, between murine brain tumor treated with NKCs and with no agents, by using microarray. Furthermore, we also performed differentially expressed gene analysis between an internal and external brain tumor in the orthotopic xenograft model. Our findings could provide pivotal information for the NK-cell-based immunotherapy for patients with GBM.
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Affiliation(s)
- Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
- Department of Neurosurgery, Nara City Hospital, Nara 630-8305, Nara, Japan
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
- Department of Neurosurgery, Nara City Hospital, Nara 630-8305, Nara, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
| | - Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
| | - Mitsutoshi Nakamura
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
- Grandsoul Research Institute for Immunology, Inc., Uda 633-2221, Nara, Japan;
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
| | - Takahiro Tsujimura
- Grandsoul Research Institute for Immunology, Inc., Uda 633-2221, Nara, Japan;
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Nara, Japan; (T.M.); (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (Y.-S.P.); (I.N.)
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Sasaki R, Tamura K, Takatani T, Park YS, Nakagawa I. Intraoperative motor-evoked potential with tetanic stimulation changes pre- and post-hemispherotomy. Childs Nerv Syst 2024; 40:563-567. [PMID: 37787814 DOI: 10.1007/s00381-023-06170-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND Careful examination of motor-evoked potential (MEP) findings is critical to the safety of intraoperative neuromonitoring during neurosurgery. We reviewed the intraoperative MEP findings in a pediatric patient who had undergone hemispherotomy for refractory epilepsy. CASE DESCRIPTION The patient was a 4-year-and-2-month-old boy with extensive right cerebral hemisphere, drug-resistant epilepsy, left upper and lower extremity paralysis, and cognitive impairment. We examined intraoperative MEP results both before and after hemispherotomy. Post-hemispherotomy and MEPs were successfully elicited through transcranial electrical stimulation (TES) but not via direct cortical stimulation on the right side. Furthermore, TES on the right side, following hemispherotomy, led to a reduction in the MEP amplification effect resulting from tetanic stimulation of the left unilateral median and tibial nerves. Conversely, we observed the effects of MEP amplification during TES on the left side after tetanic stimulation of these nerves. Postoperatively, the patient underwent magnetic resonance imaging and electroencephalogram examinations, confirming the anatomical and electrophysiological completeness of the dissection. Notably, the seizures disappeared, and no apparent complications were observed. CONCLUSION Collectively, our findings suggest that TES can still activate deep structures and elicit MEPs, even in cases where the corticospinal connections to the posterior limb of the internal capsule are entirely severed. Thalamo-cortical interactions may affect the MEP amplification, observed during tetanic stimulation. Injury to the corticospinal tracts of the white matter may be obscured on conventional MEP findings; however, it may be identified by MEP changes in tetanic stimulation.
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Affiliation(s)
- Ryota Sasaki
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara 634-8552, Japan.
| | - Kentaro Tamura
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara 634-8552, Japan
| | | | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara 634-8552, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara 634-8552, Japan
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Choi SH, Ryu SH, Kim DG, Kwag JH, Yeon C, Jung J, Park YS, Park JS. c-Axis Aligned 3 nm Thick In 2O 3 Crystal Using New Liquid DBADMIn Precursor for Highly Scaled FET Beyond the Mobility-Stability Trade-off. Nano Lett 2024; 24:1324-1331. [PMID: 38230977 DOI: 10.1021/acs.nanolett.3c04312] [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] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Oxide semiconductors (OS) are attractive materials for memory and logic device applications owing to their low off-current, high field effect mobility, and superior large-area uniformity. Recently, successful research has reported the high field-effect mobility (μFE) of crystalline OS channel transistors (above 50 cm2 V-1 s-1). However, the memory and logic device application presents challenges in mobility and stability trade-offs. Here, we propose a method for achieving high-mobility and high-stability by lowering the grain boundary effect. A DBADMIn precursor was synthesized to deposit highly c-axis-aligned C(222) crystalline 3 nm thick In2O3 films. In this study, the 250 °C deposited 3 nm thick In2O3 channel transistor exhibited high μFE of 41.12 cm2 V-1 s-1, Vth of -0.50 V, and SS of 150 mV decade-1 with superior stability of 0.16 V positive shift during PBTS at 100 °C, 3 MV cm-1 stress conditions for 3 h.
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Affiliation(s)
- Su-Hwan Choi
- Division of Nanoscale Semiconductor Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Seong-Hwan Ryu
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Dong-Gyu Kim
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Jae-Hyeok Kwag
- Division of Nanoscale Semiconductor Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Changbong Yeon
- Thin Film Materials Development Team, Soulbrain, 14-102 Gongdan-Gil, Gongju Republic of Korea
| | - Jaesun Jung
- Thin Film Materials Development Team, Soulbrain, 14-102 Gongdan-Gil, Gongju Republic of Korea
| | - Young-Soo Park
- Thin Film Materials Development Team, Soulbrain, 14-102 Gongdan-Gil, Gongju Republic of Korea
| | - Jin-Seong Park
- Division of Nanoscale Semiconductor Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
- Division of Materials Science and Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
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Kim EJ, Chae H, Park YS, Ryu MH, Kim HD, Shin J, Park YS, Moon MS, Kang YK. Clinical outcomes of Epstein-Barr virus (EBV)-associated metastatic and locally advanced unresectable gastric cancers (GCs) in patients receiving first-line fluoropyrimidine and platinum (FP) doublet chemotherapy. Gastric Cancer 2024; 27:146-154. [PMID: 38006567 DOI: 10.1007/s10120-023-01445-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/20/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND Epstein-Barr virus-associated gastric cancer (EBVaGC) is a distinct molecular subgroup showing excellent outcomes after surgery for localized disease. Prominent immune cell infiltration in EBVaGC reflects the immunogenicity of Epstein-Barr virus (EBV) and, as suggested by some investigators, responsiveness to immune checkpoint inhibitors in the palliative setting. However, few data are available on the prevalence, clinical characteristics, and prognosis of EBVaGC patients receiving palliative cytotoxic chemotherapy. METHODS In this retrospective study, we identified 1061 patients with metastatic, recurrent, or locally advanced unresectable gastric cancer (GC) who started first-line fluoropyrimidine/platinum (FP) doublet chemotherapy with or without trastuzumab from January 2015 to August 2018. For 766 patients with available tumor tissue, the presence of EBV in cancer cells was evaluated by EBV-encoded RNA in situ hybridization and correlated with clinical characteristics and treatment outcomes. RESULTS Among the patients evaluated (n = 766), 40 (5.0%) were EBV-positive. EBVaGC was associated with male sex (p = 0.009) and lower neutrophil-lymphocyte ratio (NLR < 2.46, p = 0.03). Efficacy of first-line FP chemotherapy, in terms of response rate ad progression-free survival (PFS), did not differ between EBVaGC and EBV-negative GC (overall response rate: 53.8% vs. 51.8%, p = 0.99; median PFS: 6.4 vs. 6.7 months, p = 0.90). However, overall survival tended to be better with EBVaGC than EBV-negative GC (16.4 vs. 14.0 months, p = 0.07). CONCLUSIONS EBVaGC accounted for 5% of metastatic/unresectable GCs. While EBVaGC was not associated with better response to or PFS following first-line cytotoxic chemotherapy, it showed a trend toward better overall survival.
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Affiliation(s)
- Eo Jin Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Division of Hematology/Oncology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Heejung Chae
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Center for Breast Cancer, National Cancer Center, Goyang, Korea
| | - Young-Soo Park
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Min-Hee Ryu
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyung-Don Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Junyoung Shin
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yang Soon Park
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Mee Sun Moon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yoon-Koo Kang
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Nakazawa T, Maeoka R, Morimoto T, Matsuda R, Nakamura M, Nishimura F, Yamada S, Nakagawa I, Park YS, Ito T, Nakase H, Tsujimura T. An efficient feeder-free and chemically-defined expansion strategy for highly purified natural killer cells derived from human cord blood. Regen Ther 2023; 24:32-42. [PMID: 37303464 PMCID: PMC10247952 DOI: 10.1016/j.reth.2023.05.006] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/24/2023] [Accepted: 05/23/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction Natural killer cells (NKCs) are immune cells that can attack cancer cells through the direct recognition of ligands without prior sensitization. Cord blood-derived NKCs (CBNKCs) represent a promising tool for allogenic NKC-based cancer immunotherapy. Efficient NKC expansion and decreased T cell inclusion are crucial for the success of allogeneic NKC-based immunotherapy without inducing graft-versus-host reactions. We previously established an efficient ex vivo expansion system consisting of highly purified-NKCs derived from human peripheral blood. Herein, we evaluated the performance of the NKC expansion system using CB and characterized the expanded populations. Methods Frozen CB mononuclear cells (CBMCs), with T cells removed, were cultured with recombinant human interleukin (rhIL)-18 and rhIL-2 under conditions where anti-NKp46 and anti-CD16 antibodies were immobilized. Following 7, 14, and 21 days of expansion, the purity, fold-expansion rates of NKCs, and the expression levels of NK activating and inhibitory receptors were assessed. The ability of these NKCs to inhibit the growth of T98G, a glioblastoma (GBM) cell line sensitive to NK activity, was also examined. Results All expanded T cell-depleted CBMCs were included in over 80%, 98%, and 99% of CD3-CD56+ NKCs at 7, 14, and 21 days of expansion, respectively. The NK activating receptors LFA-1, NKG2D, DNAM-1, NKp30, NKp44, NKp46, FcγRIII and NK inhibitory receptors TIM-3, TIGIT, TACTILE, NKG2A were expressed on the expanded-CBNKCs. Two out of three of the expanded-CBNKCs weakly expressed PD-1, yet gradually expressed PD-1 according to expansion period. One of the three expanded CBNKCs almost lacked PD-1 expression during the expansion period. LAG-3 expression was variable among donors, and no consistent changes were identified during the expansion period. All of the expanded CBNKCs elicited distinct cytotoxicity-mediated growth inhibition on T98G cells. The level of cytotoxicity was gradually decreased based on the prolonged expansion period. Conclusions Our established feeder-free expansion system yielded large scale highly purified and cytotoxic NKCs derived from human CB. The system provides a stable supply of clinical grade off-the-shelf NKCs and may be feasible for allogeneic NKC-based immunotherapy for cancers, including GBM.
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Affiliation(s)
- Tsutomu Nakazawa
- Grandsoul Research Institute for Immunology, Inc., Uda, Nara, 633-2221, Japan
- Clinic Grandsoul Nara, Matsui 8-1, Uda, Nara, 633-2221, Japan
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Mitsutoshi Nakamura
- Clinic Grandsoul Nara, Matsui 8-1, Uda, Nara, 633-2221, Japan
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Toshihiro Ito
- Department of Immunology, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Takahiro Tsujimura
- Grandsoul Research Institute for Immunology, Inc., Uda, Nara, 633-2221, Japan
- Clinic Grandsoul Nara, Matsui 8-1, Uda, Nara, 633-2221, Japan
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10
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Dahal R, Tamura K, Sasaki R, Takeshima Y, Matsuda R, Yamada S, Nishimura F, Nakagawa I, Park YS, Nakase H. Left Temporal Pole Encephalocele With Independent Hippocampal Seizures: Surgical Strategy and Relevance of Epileptic Biomarkers. J Clin Neurophysiol 2023; 40:e646-e650. [PMID: 36930243 DOI: 10.1097/wnp.0000000000001005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
SUMMARY Temporal pole encephalocele (TE) is an increasingly recognized surgically treatable subtype of refractory temporal lobe epilepsy that rarely shows hippocampal involvement. A 27-year-old patient presented with medically intractable epilepsy because of a left temporal pole encephalocele with a normal hippocampus on MRI. Extraoperative electrocorticography showed independent seizure onset with distinct morphology of seizure onset pattern from the temporal pole encephalocele and hippocampus. Additional analysis of ictal and interictal fast ripples revealed different electrophysiological fast ripple profiles in the two seizure onset zones. The patient underwent temporopolar disconnection, eliminating the need for large dural repair and multiple hippocampal transections that helped preserve the intrahippocampal and extrahippocampal memory pathways. Herein, the authors report that independent hippocampal seizures can be observed in patients with temporal pole encephalocele. Features of the ictal and interictal fast ripples can differ depending on the morphology of the seizure onset pattern. The authors suggest that, the interpretation of fast ripples in clinical practice should take seizure onset patterns into consideration.
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Affiliation(s)
- Riju Dahal
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
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11
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Dahal R, Tamura K, Pan DS, Sasaki R, Takeshima Y, Matsuda R, Yamada S, Nishimura F, Nakagawa I, Park YS, Hayashi H, Kawaguchi M, Nakase H. Effect of Sevoflurane Anesthesia on Intraoperative Spikes, High-Frequency Oscillations, and Phase-Amplitude Coupling in MRI-Normal Hippocampus. J Clin Neurophysiol 2023:00004691-990000000-00107. [PMID: 37934075 DOI: 10.1097/wnp.0000000000001031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
INTRODUCTION The purpose of this study was to determine the effect of sevoflurane anesthesia on spikes, high-frequency oscillations (HFOs), and phase-amplitude coupling using a modulation index in MRI-normal hippocampus, with the aim of evaluating the utility of intraoperative electrocorticography in identifying the epileptogenic hippocampus during sevoflurane administration. METHODS Eleven patients with intractable temporal lobe epilepsy with a normal hippocampus on MRI underwent extra-operative electrocorticography evaluation. Patients were assigned to the Ictal (+) or Ictal (-) group depending on whether the parahippocampal gyrus was included in the seizure onset zone. Intraoperative electrocorticography was performed under 0.5 and 1.5 minimum alveolar concentration of sevoflurane. The rates of spikes, ripples, fast ripples (FRs), ripples on spikes, FRs on spikes, and MI HFO(3-4 Hz) were evaluated. RESULTS During the intraoperative electrocorticography procedure, sevoflurane administration was found to significantly increase the rate of spikes, ripples on spikes, fast ripples on spikes, and MI HFO(3-4 Hz) in the Ictal (+) group (P < 0.01). By contrast, the Ictal (-) group exhibited a paradoxical increase in the rate of ripples and fast ripple (P < 0.05). CONCLUSIONS Our findings indicate that the administration of sevoflurane during intraoperative electrocorticography in patients with MRI-normal hippocampus can lead to a dose-dependent enhancement of epileptic biomarkers (spikes, ripples on spikes, fast ripples on spikes, and MI (HFO 3-4)) in the epileptogenic hippocampus, while paradoxically increasing the rate of ripples and fast ripple in the nonepileptogenic hippocampus. These results have significant implications for the identification of the MRI-normal hippocampus that requires surgical intervention and preservation of the nonepileptogenic hippocampus.
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Affiliation(s)
- Riju Dahal
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Kentaro Tamura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Dong-Sheng Pan
- Department of Neurosurgery, General Hospital of Northern Theater Command, Shenyang, China; and
| | - Ryota Sasaki
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Hironobu Hayashi
- Department of Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
| | - Masahiko Kawaguchi
- Department of Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
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12
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Maeoka R, Ouji Y, Nakazawa T, Matsuda R, Morimoto T, Yokoyama S, Yamada S, Nishimura F, Nakagawa I, Park YS, Yoshikawa M, Nakase H. Local administration of shikonin improved the overall survival in orthotopic murine glioblastoma models with temozolomide resistance. Biomed Pharmacother 2023; 166:115296. [PMID: 37557011 DOI: 10.1016/j.biopha.2023.115296] [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: 06/23/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Glioblastoma is a type of intracranial malignancy. Shikonin, a Chinese traditional medicine, has been shown to have anti-tumor efficacy toward human glioblastoma cells in vitro. However, shikonin cannot easily cross the blood-brain barrier. To address this issue, we evaluated the anti-tumor effects of direct intracranial infusion of shikonin in in vivo orthotopic syngeneic murine glioblastoma models using C57BL/6 mice. MATERIALS AND METHODS The cytotoxic effects of shikonin against murine glioblastoma cells, SB28 and CT-2A, were reported resistance to temozolomide, were evaluated using an allophycocyanin-conjugated annexin V and propidium iodide assay with flow cytometry. Impedance-based real-time cell analysis (RTCA) was used to analyze the inhibitory effects of shikonin on growth and proliferation. To evaluate the anti-tumor activity of shikonin in vivo, we used orthotopic syngeneic murine glioblastoma models with SB28 and CT-2A cells. RESULTS In flow cytometry-based cytotoxic assays, shikonin induced apoptosis. RTCA indicated that shikonin decreased the cell index of murine glioblastoma cells, SB28 and CT-2A, in a dose-dependent manner (p < 0.0001 for both cell lines), while temozolomide did not (p = 0.91 and 0.82, respectively). In murine glioblastoma models, SB28 and CT-2A, direct intracranial infusion of shikonin, as a local chemotherapy, improved the overall survival of mice in a dose-dependent manner compared with control groups (p < 0.0001 and p = 0.02, respectively). While temozolomide did not (p = 0.48 and 0.52, respectively). CONCLUSIONS The direct intracranial infusion of shikonin has potential as a local therapy for patients with glioblastoma.
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Affiliation(s)
- Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan.
| | - Yukiteru Ouji
- Department of Pathogen, Infection and Immunity, Nara Medical University, Kashihara, Nara, Japan
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan; Grandsoul Research Institute for Immunology, Inc., Uda, Nara, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Shohei Yokoyama
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Masahide Yoshikawa
- Department of Pathogen, Infection and Immunity, Nara Medical University, Kashihara, Nara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
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Fukuoka K, Kurihara J, Shofuda T, Kagawa N, Yamasaki K, Ando R, Ishida J, Kanamori M, Kawamura A, Park YS, Kiyotani C, Akai T, Keino D, Miyairi Y, Sasaki A, Hirato J, Inoue T, Nakazawa A, Koh K, Nishikawa R, Date I, Nagane M, Ichimura K, Kanemura Y. Subtyping of Group 3/4 medulloblastoma as a potential prognostic biomarker among patients treated with reduced dose of craniospinal irradiation: a Japanese Pediatric Molecular Neuro-Oncology Group study. Acta Neuropathol Commun 2023; 11:153. [PMID: 37749662 PMCID: PMC10521425 DOI: 10.1186/s40478-023-01652-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 09/08/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND One of the most significant challenges in patients with medulloblastoma is reducing the dose of craniospinal irradiation (CSI) to minimize neurological sequelae in survivors. Molecular characterization of patients receiving lower than standard dose of CSI therapy is important to facilitate further reduction of treatment burden. METHODS We conducted DNA methylation analysis using an Illumina Methylation EPIC array to investigate molecular prognostic markers in 38 patients with medulloblastoma who were registered in the Japan Pediatric Molecular Neuro-Oncology Group and treated with reduced-dose CSI. RESULTS Among the patients, 23 were classified as having a standard-risk and 15 as high-risk according to the classic classification based on tumor resection rate and presence of metastasis, respectively. The median follow-up period was 71.5 months (12.0-231.0). The median CSI dose was 18 Gy (15.0-24.0) in both groups, and 5 patients in the high-risk group received a CSI dose of 18.0 Gy. Molecular subgrouping revealed that the standard-risk cohort included 5 WNT, 2 SHH, and 16 Group 3/4 cases; all 15 patients in the high-risk cohort had Group 3/4 medulloblastoma. Among the patients with Group 3/4 medulloblastoma, 9 of the 31 Group 3/4 cases were subclassified as subclass II, III, and V, which were known to an association with poor prognosis according to the novel subtyping among the subgroups. Patients with poor prognostic subtype showed worse prognosis than that of others (5-year progression survival rate 90.4% vs. 22.2%; p < 0.0001). The result was replicated in the multivariate analysis (hazard ratio12.77, 95% confidence interval for hazard ratio 2.38-99.21, p value 0.0026 for progression-free survival, hazard ratio 5.02, 95% confidence interval for hazard ratio 1.03-29.11, p value 0.044 for overall survival). CONCLUSION Although these findings require validation in a larger cohort, the present findings suggest that novel subtyping of Group 3/4 medulloblastoma may be a promising prognostic biomarker even among patients treated with lower-dose CSI than standard treatment.
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Affiliation(s)
- Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shin-Toshin, Saitama, 330-8777, Japan.
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children's Medical Center, Saitama, Japan
| | - Tomoko Shofuda
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization, Osaka, Japan
| | - Naoki Kagawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kai Yamasaki
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital, Osaka, Japan
| | - Ryo Ando
- Department of Neurosurgery, Chiba Children's Hospital, Chiba, Japan
| | - Joji Ishida
- Department of Neurological Surgery, Okayama University Graduate School, Okayama, Japan
| | - Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsufumi Kawamura
- Department of Neurosurgery, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | - Chikako Kiyotani
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Takuya Akai
- Departments of Neurosurgery, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, Toyama, Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Yosuke Miyairi
- Department of Neurosurgery, Nagano Children's Hospital, Azumino, Japan
| | - Atsushi Sasaki
- Department of Pathology, Saitama Medical University, Saitama, Japan
| | - Junko Hirato
- Department of Pathology, Public Tomioka General Hospital, Gunma, Japan
| | - Takeshi Inoue
- Department of Pathology, Osaka City General Hospital, Osaka, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2, Shin-Toshin, Saitama, 330-8777, Japan
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Saitama, Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School, Okayama, Japan
| | - Motoo Nagane
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Japan
| | - Koichi Ichimura
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Yonehiro Kanemura
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization, Osaka, Japan
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Maeoka R, Nakazawa T, Matsuda R, Morimoto T, Shida Y, Yamada S, Nishimura F, Nakamura M, Nakagawa I, Park YS, Tsujimura T, Nakase H. Therapeutic Anti-KIR Antibody of 1-7F9 Attenuates the Antitumor Effects of Expanded and Activated Human Primary Natural Killer Cells on In Vitro Glioblastoma-like Cells and Orthotopic Tumors Derived Therefrom. Int J Mol Sci 2023; 24:14183. [PMID: 37762486 PMCID: PMC10531877 DOI: 10.3390/ijms241814183] [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: 08/19/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Glioblastoma (GBM) is the leading malignant intracranial tumor, where prognosis for which has remained extremely poor for two decades. Immunotherapy has recently drawn attention as a cancer treatment, including for GBM. Natural killer (NK) cells are immune cells that attack cancer cells directly and produce antitumor immunity-related cytokines. The adoptive transfer of expanded and activated NK cells is expected to be a promising GBM immunotherapy. We previously established an efficient expansion method that produced highly purified, activated primary human NK cells, which we designated genuine induced NK cells (GiNKs). The GiNKs demonstrated antitumor effects in vitro and in vivo, which were less affected by blockade of the inhibitory checkpoint receptor programmed death 1 (PD-1). In the present study, we assessed the antitumor effects of GiNKs, both alone and combined with an antibody targeting killer Ig-like receptor 2DLs (KIR2DL1 and DL2/3, both inhibitory checkpoint receptors of NK cells) in vitro and in vivo with U87MG GBM-like cells and the T98G GBM cell line. Impedance-based real-time cell growth assays and apoptosis detection assays revealed that the GiNKs exhibited growth inhibitory effects on U87MG and T98G cells by inducing apoptosis. KIR2DL1 blockade attenuated the growth inhibition of the cell lines in vitro. The intracranial administration of GiNKs prolonged the overall survival of the U87MG-derived orthotopic xenograft brain tumor model. The KIR2DL1 blockade did not enhance the antitumor effects; rather, it attenuated it in the same manner as in the in vitro experiment. GiNK immunotherapy directly administered to the brain could be a promising immunotherapeutic alternative for patients with GBM. Furthermore, KIR2DL1 blockade appeared to require caution when used concomitantly with GiNKs.
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Affiliation(s)
- Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
- Grandsoul Research Institute for Immunology, Inc., Uda 633-2221, Japan;
- Clinic Grandsoul Nara, Uda 633-2221, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Yoichi Shida
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Mitsutoshi Nakamura
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
- Clinic Grandsoul Nara, Uda 633-2221, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
| | - Takahiro Tsujimura
- Grandsoul Research Institute for Immunology, Inc., Uda 633-2221, Japan;
- Clinic Grandsoul Nara, Uda 633-2221, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Nara 634-8521, Japan; (R.M.); (T.M.); (Y.S.); (S.Y.); (F.N.); (M.N.); (I.N.); (Y.-S.P.); (H.N.)
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Nakagawa I, Kotsugi M, Yokoyama S, Maeoka R, Tamura K, Takeshima Y, Matsuda R, Yamada S, Nishimura F, Park YS, Nakase H. Extensive Roles and Technical Advances of Middle Meningeal Artery Embolization for Chronic Subdural Hematoma. Neurol Med Chir (Tokyo) 2023; 63:327-333. [PMID: 37286481 PMCID: PMC10482489 DOI: 10.2176/jns-nmc.2023-0017] [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: 02/02/2023] [Accepted: 04/03/2023] [Indexed: 06/09/2023] Open
Abstract
Chronic subdural hematoma (CSDH) is a common pathology that typically affects the elderly in Japan, an aging society. Burr-hole irrigation is the standard treatment, but middle meningeal artery (MMA) embolization is a minimally invasive alternative. MMA embolization for CSDH has frequently been reported in recent years, and many technical innovations to improve clinical outcomes have been described. Embolic materials reaching more distally are found to avoid recurrences after MMA embolization. As a result, various studies have described the superiority of embolizing the anterior and posterior branches of the MMA, the advantages of embolic materials reaching beyond the midline, and a high degree of distal penetration using a "sugar rush technique" in which 5% soluble glucose is injected through an intermediate catheter during MMA embolization. Radiographically, reports have described the importance of a "bright falx" sign obtained by infiltrating embolic material beyond the midline and post-embolization enhancement of the dura, capsular membrane, septations, and subdural hematoma fluid as indicators of the spread of embolic materials. This review provides an overview of the current status and future challenges in MMA embolization for CSDH, focusing on technical aspects to improve clinical outcomes.
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Jang MJ, Hong WJ, Park YS, Jung KH, Kim S. Genomic basis of multiphase evolution driving divergent selection of zinc-finger homeodomain genes. Nucleic Acids Res 2023; 51:7424-7437. [PMID: 37394281 PMCID: PMC10415114 DOI: 10.1093/nar/gkad489] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/03/2023] [Accepted: 05/22/2023] [Indexed: 07/04/2023] Open
Abstract
Gene families divergently evolve and become adapted as different genes with specific structures and functions in living organisms. We performed comprehensive structural and functional analyses of Zinc-finger homeodomain genes (ZF-HDs), including Mini zinc-finger genes (MIFs) and Zinc-finger with homeodomain genes (ZHDs), displaying competitive functions each other. Intensive annotation updates for 90 plant genomes verified that most MIFs (MIF-Is) exhibited distinct motif compositions from ZHDs, although some MIFs (MIF-Zs) contained ZHD-specific motifs. Phylogenetic analyses suggested that MIF-Zs and ZHDs originated from the same ancestral gene, whereas MIF-Is emerged from a distinct progenitor. We used a gene-editing system to identify a novel function of MIF-Is in rice: regulating the surface material patterns in anthers and pollen through transcriptional regulation by interacting ZHDs. Kingdom-wide investigations determined that (i) ancestral MIFs diverged into MIF-Is and MIF-Zs in the last universal common ancestor, (ii) integration of HD into the C-terminal of MIF-Zs created ZHDs after emergence of green plants and (iii) MIF-Is and ZHDs subsequently expanded independently into specific plant lineages, with additional formation of MIF-Zs from ZHDs. Our comprehensive analysis provides genomic evidence for multiphase evolution driving divergent selection of ZF-HDs.
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Affiliation(s)
- Min-Jeong Jang
- Department of Environmental Horticulture, University of Seoul, Seoul 02504, Republic of Korea
| | - Woo-Jong Hong
- Graduate School of Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
- Department of Smart Farm Science, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Young-Soo Park
- Department of Environmental Horticulture, University of Seoul, Seoul 02504, Republic of Korea
| | - Ki-Hong Jung
- Graduate School of Green-Bio Science and Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
- Research Center for Plant Plasticity, Seoul National University, Seoul 08826, Republic of Korea
| | - Seungill Kim
- Department of Environmental Horticulture, University of Seoul, Seoul 02504, Republic of Korea
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Tanaka H, Nishimura F, Nakase K, Yokoyama S, Nakagawa I, Yamada S, Tamura K, Matsuda R, Takeshima Y, Kotsugi M, Park YS, Nakase H. Case report: Giant pituitary neuroendocrine tumor presented along with acute visual loss due to pituitary apoplexy after receiving COVID-19 vaccination. Front Surg 2023; 10:1220098. [PMID: 37576925 PMCID: PMC10413133 DOI: 10.3389/fsurg.2023.1220098] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 06/30/2023] [Indexed: 08/15/2023] Open
Abstract
Objective A case of giant pituitary neuroendocrine tumor presented along with acute visual loss due to pituitary apoplexy after receiving a COVID-19 vaccination is reported. Case presentation A 45-year-old man was referred for a giant pituitary tumor with bitemporal hemianopsia. A surgical procedure was planned and then delayed due to the COVID-19 outbreak in Japan, with a Pfizer/BioNTech vaccine administered while awaiting surgery. Three days after the second COVID-19 vaccination the patient noted a progressively worsening headache that caused pituitary apoplexy and then a decrease in vision. Emergency surgery was thus performed. Conclusion Pituitary apoplexy is a rare and life-threatening complication that may occur after undergoing a COVID-19 vaccination.
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Tamura K, Sasaki R, Sakakibara T, Dahal R, Takeshima Y, Matsuda R, Yamada S, Nishimura F, Nakagawa I, Park YS, Hirabayashi H, Nakase H. Additional Effect of High-output Current and/or High-duty Cycle in Vagus Nerve Stimulation for Adolescent/Adult Intractable Epilepsy. Neurol Med Chir (Tokyo) 2023; 63:273-282. [PMID: 37045770 PMCID: PMC10406457 DOI: 10.2176/jns-nmc.2022-0280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 02/20/2023] [Indexed: 04/14/2023] Open
Abstract
A vagus nerve stimulation (VNS) device delivers electrical pulses to the vagus nerve at a rhythm defined by the duty cycle. The standard therapeutic range is advocated for an output current of 1.5-2.25 mA and a duty cycle of 10%. As the optimal settings vary from patient to patient, some patients may benefit from additional seizure reduction when stimulated beyond the standard range. A total of 74 patients (15 children aged <12 years and 59 adolescents/adults) who underwent VNS implantation between 2011 and 2020 and who were followed up for at least 2 years were included in this retrospective study. Stimulation parameters exceeding 2.25 mA of output current, 25% of duty cycle, and 0.5625 (2.25 mA × 25%) of current × duty cycle were defined as high stimulation. The proportion achieved an additional seizure reduction of 20%, and the 50% seizure reduction rate at the last follow-up was compared between adolescents/adults and children. Approximately 40% of patients in adolescents/adults treated with high stimulation experienced an additional acute effect, resulting in a 50% or greater reduction in seizures in almost all patients. Moreover, in adolescents/adults, 22.2%-41.9% of the patients were treated with high stimulation, and the responder rate was 69.5%. Conversely, the responder rate in children was 26.7%, significantly worse than that in adolescents/adults, despite higher stimulation. VNS with high-stimulation settings is effective for adolescent and adult patients with intractable epilepsy. Even high stimulation may not be effective in extremely refractory pediatric epilepsy with a high seizure frequency.
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Affiliation(s)
- Kentaro Tamura
- Department of Neurosurgery, Nara Medical University
- Epilepsy Center, National Hospital Organization Nara Medical Center
| | - Ryota Sasaki
- Department of Neurosurgery, Nara Medical University
- Epilepsy Center, National Hospital Organization Nara Medical Center
| | - Takafumi Sakakibara
- Epilepsy Center, National Hospital Organization Nara Medical Center
- Department of Pediatrics, Nara Medical University
| | - Riju Dahal
- Department of Neurosurgery, Nara Medical University
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Takeshima Y, Okamoto A, Yokoyama S, Nishimura F, Nakagawa I, Park YS, Nakase H. Facet Articular Irregularity Is the Most Relevant Risk Factor for Rapidly Progressive Degenerative Cervical Myelopathy. Neurospine 2023; 20:365-373. [PMID: 37016885 PMCID: PMC10080442 DOI: 10.14245/ns.2245004.502] [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: 11/28/2022] [Accepted: 01/07/2023] [Indexed: 04/03/2023] Open
Abstract
Objective: Facet articular irregularity is associated with rapidly progressive degenerative cervical myelopathy (DCM). However, its significance compared with other known risk factors remains unknown. Therefore, this retrospective study aimed to clarify the potential impact of facet articular irregularity as a risk factor for rapid DCM progression.Methods: This study included 141 consecutive patients with DCM who underwent surgical treatment at our institution. Clinical variables and radiological findings related to DCM progression were collected. Imaging findings were analyzed at the segmental level of myelopathy in each case. The patients were divided into 2 groups based on the presence or absence of rapid DCM progression, and independent risk factors were determined using logistic regression analyses.Results: Overall, 131 patients with a mean age of 63.9 ± 12.6 years were analyzed; 27 patients (20.6%) were classified into the rapid DCM progression group. The mean age was significantly higher in the rapid progression group than in the slow progression group (72.4 ± 9.6 vs. 61.7 ± 12.4, p < 0.001). According to univariate analysis, facet articular irregularity, dynamic segmental translation (≥ 1.6 mm), upper cervical spine involvement above C4–5, history of cerebrovascular events, preceding minor trauma, local lordotic angle (≥ 4.5°), diabetes, hypertension, ligamentum flavum hypertrophy, and age were independent risk factors. Additionally, multivariate analysis showed that facet articular irregularity was the highest risk factor for rapid DCM progression (p = 0.001).Conclusion: Facet articular irregularity is the most clinically significant finding among the known risk factors in patients with rapid DCM progression.
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Affiliation(s)
- Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
- Corresponding Author Yasuhiro Takeshima Department of Neurosurgery, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Ai Okamoto
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Shohei Yokoyama
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
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Sasaki R, Tamura K, Yamazaki S, Kim TK, Takatani T, Hayashi H, Motoyama Y, Nakagawa I, Park YS, Kawaguchi M, Nakase H. Effects of intraoperative motor evoked potential amplification following tetanic stimulation of the pudendal nerve in pediatric craniotomy. J Neurosurg Pediatr 2023; 31:488-495. [PMID: 36840735 DOI: 10.3171/2023.1.peds22505] [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: 11/20/2022] [Accepted: 01/17/2023] [Indexed: 02/26/2023]
Abstract
OBJECTIVE Monitoring the intraoperative motor evoked potentials (MEPs) in pediatric craniotomy is challenging because of its low detection rate, which makes it unreliable. Tetanic stimulation of the peripheral nerves of the extremities and pudendal nerves prior to transcranial electrical stimulation (TES) or direct cortical stimulation (DCS) amplifies the MEPs. The authors investigated the effects of MEP amplification following tetanic stimulation of the median and tibial nerve or the pudendal nerve in pediatric patients undergoing craniotomy. METHODS This prospective observational study included 15 patients ≤ 15 years of age (mean age 8.9 ± 4.9 years) undergoing craniotomy. MEPs were obtained with TES (15 cases) or DCS (8 cases)-conventional MEP without tetanic stimulation (c-MEP) and MEP following tetanic stimulation of the unilateral median and tibial nerves (mt-MEP) or following tetanic stimulation of the pudendal nerve (p-MEP) were used. Compound muscle action potentials were elicited from the abductor pollicis brevis, gastrocnemius, tibialis anterior, and abductor hallucis longus muscles. The authors compared the identification rate and the rate of amplitude increase of each MEP. RESULTS For both TES and DCS, the identification and amplitude increase rates were significantly higher in cases without preoperative hemiparesis for p-MEPs than in those for c-MEPs and mt-MEPs. In comparison to patients with preoperative hemiparesis, p-MEPs displayed a higher identification rate, with fewer false negatives in DCS cases. CONCLUSIONS In pediatric craniotomy, the authors observed the amplification effect of MEPs with pudendal nerve tetanic stimulation and the amplification effect of DCS on MEPs without increasing false negatives. These findings suggested the likelihood of more reliable intraoperative MEP monitoring in pediatric cases.
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Affiliation(s)
| | | | | | | | | | | | - Yasushi Motoyama
- 4Department of Neurosurgery, Osaka Police Hospital, Osaka, Japan
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21
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Choi JW, Choi HH, Park YS, Jang MJ, Kim S. Comparative and expression analyses of AP2/ERF genes reveal copy number expansion and potential functions of ERF genes in Solanaceae. BMC Plant Biol 2023; 23:48. [PMID: 36683040 PMCID: PMC9869560 DOI: 10.1186/s12870-022-04017-6] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND The AP2/ERF gene family is a superfamily of transcription factors that are important in the response of plants to abiotic stress and development. However, comprehensive research of the AP2/ERF genes in the Solanaceae family is lacking. RESULTS Here, we updated the annotation of AP2/ERF genes in the genomes of eight Solanaceae species, as well as Arabidopsis thaliana and Oryza sativa. We identified 2,195 AP2/ERF genes, of which 368 (17%) were newly identified. Based on phylogenetic analyses, we observed expansion of the copy number of these genes, especially those belonging to specific Ethylene-Responsive Factor (ERF) subgroups of the Solanaceae. From the results of chromosomal location and synteny analyses, we identified that the AP2/ERF genes of the pepper (Capsicum annuum), the tomato (Solanum lycopersicum), and the potato (Solanum tuberosum) belonging to ERF subgroups form a tandem array and most of them are species-specific without orthologs in other species, which has led to differentiation of AP2/ERF gene repertory among Solanaceae. We suggest that these genes mainly emerged through recent gene duplication after the divergence of these species. Transcriptome analyses showed that the genes have a putative function in the response of the pepper and tomato to abiotic stress, especially those in ERF subgroups. CONCLUSIONS Our findings will provide comprehensive information on AP2/ERF genes and insights into the structural, evolutionary, and functional understanding of the role of these genes in the Solanaceae.
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Affiliation(s)
- Jin-Wook Choi
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Hyeon Ho Choi
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Young-Soo Park
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Min-Jeong Jang
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea
| | - Seungill Kim
- Department of Environmental Horticulture, University of Seoul, Seoul, 02504, Republic of Korea.
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22
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Kato M, Nonaka M, Akutsu N, Narisawa A, Harada A, Park YS. Correlations of intracranial pathology and cause of head injury with retinal hemorrhage in infants and toddlers: A multicenter, retrospective study by the J-HITs (Japanese Head injury of Infants and Toddlers study) group. PLoS One 2023; 18:e0283297. [PMID: 36930676 PMCID: PMC10022784 DOI: 10.1371/journal.pone.0283297] [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: 12/13/2022] [Accepted: 03/05/2023] [Indexed: 03/18/2023] Open
Abstract
INTRODUCTION In infants who have suffered head trauma there are two possible explanations for retinal hemorrhage (RH): direct vitreous shaking and occurrence in association with intracranial lesions. Which possibility is more plausible was examined. MATERIAL AND METHODS This multicenter, retrospective study reviewed the clinical records of children younger than four years with head trauma who had been diagnosed with any findings on head computed tomography (CT) and/or magnetic resonance imaging (MRI). Of 452 cases, 239 underwent an ophthalmological examination and were included in this study. The relationships of RH with intracranial findings and the cause of injury were examined. RESULT Odds ratios for RH were significant for subdural hematoma (OR 23.41, p = 0.0004), brain edema (OR 5.46, p = 0.0095), nonaccidental (OR 11.26, p<0.0001), and self-inflicted falls (OR 6.22, p = 0.0041). CONCLUSION Although nonaccidental, brain edema and self-inflicted falls were associated with RH, subdural hematoma was most strongly associated with RH.
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Affiliation(s)
- Mihoko Kato
- Department of Neurosurgery, Aichi Children’s Health and Medical Center, Aichi, Japan
| | - Masahiro Nonaka
- Department of Neurosurgery, Kansai Medical University, Osaka, Japan
- * E-mail:
| | - Nobuyuki Akutsu
- Department of Neurosurgery, Hyogo Prefectural Kobe Children’s Hospital, Hyogo, Japan
| | - Ayumi Narisawa
- Department of Neurosurgery, Sendai City Hospital, Miyagi, Japan
| | - Atsuko Harada
- Department of Pediatric Neurosurgery, Takatsuki General Hospital, Osaka, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Nara, Japan
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Nakazawa T, Morimoto T, Maeoka R, Matsuda R, Nakamura M, Nishimura F, Yamada S, Nakagawa I, Park YS, Nakase H, Tsujimura T. Establishment of an efficient ex vivo expansion strategy for human natural killer cells stimulated by defined cytokine cocktail and antibodies against natural killer cell activating receptors. Regen Ther 2022; 21:185-191. [PMID: 35919498 PMCID: PMC9309574 DOI: 10.1016/j.reth.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/09/2022] [Accepted: 07/07/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Cell-based immunotherapy is categorized as a regenerative therapy under the Regenerative Medicine Safety Act in Japan. Natural killer (NK) cell-based immunotherapy is considered a promising strategy for treating cancer, including glioblastoma (GBM). We previously reported an expansion method for highly purified human peripheral blood-derived NK cells using a cytokine cocktail. Here, we aimed to establish a more efficient NK cell expansion method as compared to our previously reported method. Methods T cell-depleted human peripheral blood mononuclear cells (PBMCs) were isolated from three healthy volunteers. The depleted PBMCs were cultured in the presence of recombinant human interleukin (rhIL)-18 and high-dose rhIL-2 in anti-NKp46 and/or anti-CD16 antibody immobilization settings. After 14 days of expansion, the purity and expansion ratio of CD3-CD56+ NK cells were determined. The cytotoxicity-mediated growth inhibition of T98G cells (an NK activity-sensitive GBM cell line) was evaluated using a non-labeling, impedance-based real-time cell analyzer. Results Anti-NKp46 stimulation increased the NK cell purity and expansion ratio as compared to the non-antibody-stimulated population. Anti-CD16 stimulation weakly enhanced the NK cell expansion ratio of the non-antibody-stimulated population and enhanced the NK cell purity and expansion ratio of anti-NKp46-stimulated populations. All NK cell-containing populations tested distinctly inhibited T98G cell growth. These effects tended to be enhanced in an NK cell purity-dependent manner. In some cases, anti-CD16 stimulation decreased growth inhibition of T98G cell compared to other conditions despite the comparable NK cell purity. Conclusions We established a robust large-scale feeder-free expansion system for highly purified human NK cells using a defined cytokine cocktail and anti-NK cell activating receptor antibodies. The expansion system could be feasible for autologous or allogeneic NK cell-based immunotherapy of GBM. Moreover, it is easily controlled under Japanese law on regenerative medicine.
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Park YS. [Treatment for Subdural Hematoma in Infants]. No Shinkei Geka 2022; 50:1264-1285. [PMID: 36426528 DOI: 10.11477/mf.1436204694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
This chapter will discuss the treatment for infant subdural hematoma. In adult cases, treatment focused on intracranial pressure(ICP)management alone is generally sufficient, but in infant cases, special ingenuity is required. First, there are some points to keep in mind regarding surgical procedures. It is important to perform blood transfusion from an early stage, avoid exposure of bleeding points, and reduce ICP by floating the bone flap that preserves blood flow. Next, it is necessary to understand the pathophysiology peculiar to infants. Extensive lower density changes seen on head computed tomography can have a profound effect on clinical outcome. This phenomenon should not be considered as simple cerebral ischemia, but is representative of the brain damage caused by status epilepticus and hyper perfusion injury. Therefore, not only ICP management, but also treatment for status epilepticus is extremely important for postoperative management. Further, cases where abuse is the cause of subdural hematoma often display poor outcomes due to a variety of medico social factors.
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Tanaka H, Nishimura F, Nakase K, Kakutani M, Yokoyama S, Morimoto T, Kim T, Park YS, Nakagawa I, Yamada S, Tamura K, Matsuda R, Takeshima Y, Kotsugi M, Nakase H. Impact of surgical factors on delayed hyponatremia in patients with nonfunctioning pituitary adenoma after endonasal endoscopic transsphenoidal procedure. Endocrine 2022; 78:354-362. [PMID: 35984619 PMCID: PMC9584842 DOI: 10.1007/s12020-022-03164-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Delayed hyponatremia can occur after pituitary surgery, resulting in prolonged hospitalization. However, the influence of surgical factors after such a procedure has not been well established. The impact of surgery and related factors on delayed hyponatremia was investigated. METHODS This was a retrospective analysis of 137 consecutive patients who underwent transsphenoidal surgery for a nonfunctioning pituitary adenoma between 2008 and 2019. Preoperative (demographics, comorbidities), intraoperative (resection extent, operation time, blood loss volume, cerebrospinal fluid leak, tumor consistency), and postoperative [hematoma, meningitis, diabetes insipidus (DI), hormonal assessment] data were collected, with statistical analysis of each factor performed. RESULTS Among the 137 patients, delayed hyponatremia occurred in 31 (22.6%). Multivariate analysis revealed that those with hypertension had a significantly higher likelihood of avoiding delayed hyponatremia (p = 0.004). Although no correlations of direct surgical factors with delayed hyponatremia were found, multivariate analysis of indirect surgical factors showed that presence of a firm tumor, transient DI, and meningitis were significantly associated with delayed hyponatremia (p = 0.014, 0.001, and 0.047, respectively). There was also a significant association of severe hyponatremia with appearance of symptoms (p = 0.002). CONCLUSION There was a tendency for hypertension to be associated with delayed hyponatremia avoidance, with indirect surgical factors including tumor consistency, transient DI, and meningitis found to have an influence on delayed hyponatremia. It was concluded that attention should be given to non-hypertensive patients with a firm tumor, transient DI, or meningitis after pituitary surgery, as delayed hyponatremia may occur.
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Affiliation(s)
- Haku Tanaka
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan.
| | - Kenta Nakase
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Miho Kakutani
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Shohei Yokoyama
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Taekyun Kim
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Kentaro Tamura
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Masashi Kotsugi
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, 840 Shijocho, Kashihara, Nara, 634-8522, Japan
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Nakazawa T, Maeoka R, Morimoto T, Matsuda R, Nakamura M, Nishimura F, Yamada S, Nakagawa I, Park YS, Nakase H, Tsujimura T. Capability of Human Dendritic Cells Pulsed with Autologous Induced Pluripotent Stem Cell Lysate to Induce Cytotoxic T Lymphocytes against HLA-A33-Matched Cancer Cells. Int J Mol Sci 2022; 23:12992. [PMID: 36361783 PMCID: PMC9654950 DOI: 10.3390/ijms232112992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/25/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2023] Open
Abstract
Irradiated murine induced-pluripotent stem cells (iPSCs) elicit the antitumor response in vivo. However, it is unclear whether human iPSCs would elicit antitumor effects. In the present study, we investigated the capability of human iPSC lysate (iPSL)-pulsed dendritic cells (DCs) (iPSL/DCs) to induce cancer-responsive cytotoxic T lymphocytes (CTLs) in vitro. iPSCs and DCs were induced from peripheral blood mononuclear cells isolated from a human leukocyte antigen (HLA)-A33 homozygous donor. The iPSL was pulsed with immature DCs, which were then stimulated to allow full maturation. The activated DCs were co-cultured with autologous CTLs and their responses to SW48 colorectal carcinoma cells (HLA-A32/A33), T47D breast cancer cells (HLA-A33/A33), and T98G glioblastoma cells (HLA-A02/A02) were tested with enzyme-linked immunospot (ELISPOT) assays. Comprehensive gene expression analysis revealed that the established iPSCs shared numerous tumor-associated antigens with the SW48 and T47D cells. Immunofluorescent analysis demonstrated that the fluorescent-labeled iPSL was captured by the immature DCs within 2 h. iPSL/DCs induced sufficient CTL numbers in 3 weeks for ELISPOT assays, which revealed that the induced CTLs responded to SW48 and T47D cells. Human iPSL/DCs induced cancer-responsive CTLs on HLA-A33-matched cancer cells in vitro and could be a promising universal cancer vaccine for treating and preventing cancer.
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Affiliation(s)
- Tsutomu Nakazawa
- Department of Research and Development, Grandsoul Research Institute for Immunology, Matsui 8-1, Utano, Uda 633-2221, Nara, Japan
- Clinic Grandsoul Nara, Matsui 8-1, Utano, Uda 633-2221, Nara, Japan
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Mitsutoshi Nakamura
- Clinic Grandsoul Nara, Matsui 8-1, Utano, Uda 633-2221, Nara, Japan
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8522, Nara, Japan
| | - Takahiro Tsujimura
- Department of Research and Development, Grandsoul Research Institute for Immunology, Matsui 8-1, Utano, Uda 633-2221, Nara, Japan
- Clinic Grandsoul Nara, Matsui 8-1, Utano, Uda 633-2221, Nara, Japan
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Nakase K, Takeshima Y, Konishi K, Matsuda R, Tamura K, Yamada S, Nishimura F, Nakagawa I, Park YS, Nakase H. Usefulness of the Multimodal Fusion Image for Visualization of Deep Sylvian Veins. Neurol Med Chir (Tokyo) 2022; 62:475-482. [PMID: 36130906 DOI: 10.2176/jns-nmc.2022-0206] [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: 11/20/2022] Open
Abstract
The preoperative assessment of cerebral veins is important to avoid unexpected cerebral venous infarction in the neurosurgical setting. However, information is particularly limited regarding deep Sylvian veins, which occasionally disturb surgical procedures for cerebral anterior circulation aneurysms. The predictability of detecting deep Sylvian veins and their tributaries using a modern multimodal fusion image was aimed to be evaluated. Moreover, 51 patients who underwent microsurgery for unruptured cerebral aneurysms with Sylvian fissure dissection were retrospectively reviewed. The visualization of the four components of the deep Sylvian veins in conventional computed tomography (CT) venography and multimodal fusion images was evaluated. To compare the detection accuracy among these radiological images, the sensitivity and specificity for the detection of each of the four venous structures were calculated in comparison with those of intraoperative inspections. The kappa coefficients were also measured and the inter-rater agreement for each venous structure in each radiological image was examined. In all veins, the multimodal fusion image exhibited a high detection rate without statistical difference from intraoperative inspections (P = 1.0). However, CT venography exhibited a low detection rate with a significant difference from intraoperative inspections in the common vertical trunk (P = 0.006) and attached vein (P = 0.008). The kappa coefficients of the fusion image ranged from 0.73 to 0.91 and were superior to those of CT venography for all venous structures. This is the first report to indicate the usefulness of a multimodal fusion image in evaluating deep Sylvian veins, especially for the detection of nontypical, relatively small veins with large individual variability.
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Affiliation(s)
- Kenta Nakase
- Department of Neurosurgery, Nara Medical University School of Medicine
| | | | - Kengo Konishi
- Department of Central Radiation, Nara Medical University Hospital
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University School of Medicine
| | - Kentaro Tamura
- Department of Neurosurgery, Nara Medical University School of Medicine
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University School of Medicine
| | | | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University School of Medicine
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University School of Medicine
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University School of Medicine
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Takatani T, Hayashi H, Park YS, Mano T, Sugie K, Nakase H, Kawaguchi M. WE-231. Application of tetanic stimulation to the pudendal nerve prior to transcranial stimulation for augmentation of motor-evoked potential. Clin Neurophysiol 2022. [DOI: 10.1016/j.clinph.2022.07.275] [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: 11/29/2022]
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Takeshima Y, Okamoto A, Yokoyama S, Nishimura F, Nakagawa I, Park YS, Nakase H. Reply Letter to "Cervical Facet Joint Degeneration". Neurospine 2022; 19:851-852. [PMID: 36203308 PMCID: PMC9537852 DOI: 10.14245/ns.2244654.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 09/01/2022] [Indexed: 12/14/2022] Open
Affiliation(s)
- Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University School of Medicine, Nara, Japan,Corresponding Author Yasuhiro Takeshima Department of Neurosurgery, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan
| | - Ai Okamoto
- Department of Neurosurgery, Nara Medical University School of Medicine, Nara, Japan
| | - Shohei Yokoyama
- Department of Neurosurgery, Nara Medical University School of Medicine, Nara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University School of Medicine, Nara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University School of Medicine, Nara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University School of Medicine, Nara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University School of Medicine, Nara, Japan
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Park YS. Treatment Strategies and Challenges to Avoid Cerebrospinal Fluid Shunting for Pediatric Hydrocephalus. Neurol Med Chir (Tokyo) 2022; 62:416-430. [PMID: 36031350 PMCID: PMC9534569 DOI: 10.2176/jns-nmc.2022-0100] [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: 11/28/2022] Open
Abstract
Treatment for pediatric hydrocephalus aims not only to shrink the enlarged ventricle morphologically but also to create an intracranial environment that provides the best neurocognitive development and to deal with various treatment-related problems over a long period of time. Although the primary diseases that cause hydrocephalus are diverse, the ventricular peritoneal shunt has been introduced as the standard treatment for several decades. Nevertheless, complications such as shunt infection and shunt malfunction are unavoidable; the prognosis of neurological function is severely affected by such factors, especially in newborns and infants. In recent years, treatment concepts have been attempted to avoid shunting, mainly in the context of pediatric cases. In this review, the current role of neuroendoscopic third ventriculostomy for noncommunicating hydrocephalus is discussed and a new therapeutic concept for post intraventricular hemorrhagic hydrocephalus in preterm infants is documented. To avoid shunt placement and achieve good neurodevelopmental outcomes for pediatric hydrocephalus, treatment modalities must be developed.
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Affiliation(s)
- Young-Soo Park
- Department of Neurosurgery and Children's Medical Center, Nara Medical University
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Okamoto A, Nakagawa I, Kotsugi M, Yokoyama S, Yamada S, Park YS, Nakase H. Endovascular vertebral artery orifice angioplasty for the prevention of acute ischemic stroke following vertebral artery stump syndrome. Surg Neurol Int 2022; 13:382. [PMID: 36128121 PMCID: PMC9479644 DOI: 10.25259/sni_515_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 08/06/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Vertebral artery stump syndrome (VASS) involves repeated acute ischemic stroke (AIS) in the posterior circulation following vertebral artery (VA) orifice occlusion. The presence of VA orifice occlusion makes endovascular thrombectomy (EVT) difficult to achieve and leads to posterior circulation stroke with unfavorable functional outcomes. Here, we report a case of endovascular VA orifice angioplasty for the right VA pseudo-occlusion to prevent AIS following VASS pathology. Case Description: In a 76-year-old man presenting with dizziness, angiography revealed right pseudo-occluded VA at the origin concomitant with the left VA occlusion. The posterior circulation depended on the right VA through collateral flow to the distal portion. Prophylactic endovascular VA angioplasty for the right pseudo-occluded VA at the orifice was achieved to prevent AIS with tandem lesions. In the present case, endovascular VA angioplasty can prevent acute embolic stroke in the posterior circulation following EVT-resistant VASS pathology. Conclusion: Clinicians should be aware that EVT is not easy in AIS following VASS due to access difficulties and the treatment strategy should be carefully considered.
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Abstract
With the increase of the adult orthodontic population, there is a need for an accurate and evidence-based prediction of the posttreatment face in 3 dimensions (3D). The objectives of this study are 1) to develop a 3D postorthodontic face prediction method based on a deep learning network using the patient-specific factors and orthodontic treatment conditions and 2) to validate the accuracy and clinical usability of the proposed method. Paired sets (n = 268) of pretreatment (T1) and posttreatment (T2) cone-beam computed tomography (CBCT) of adult patients were trained with a conditional generative adversarial network to generate 3D posttreatment facial data based on the patient's gender, age, and the changes of upper (ΔU1) and lower incisor position (ΔL1) as input. The accuracy was calculated with prediction error and mean absolute distances between real T2 (T2) and predicted T2 (PT2) near 6 perioral landmark regions, as well as percentage of prediction error less than 2 mm using test sets (n = 44). For qualitative evaluation, an online survey was conducted with experienced orthodontists as panels (n = 56). Overall, PT2 indicated similar 3D changes to the T2 face, with the most apparent changes simulated in the perioral regions. The mean prediction error was 1.2 ± 1.01 mm with 80.8% accuracy. More than 50% of the experienced orthodontists were unable to distinguish between real and predicted images. In this study, we proposed a valid 3D postorthodontic face prediction method by applying a deep learning algorithm trained with CBCT data sets.
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Affiliation(s)
- Y S Park
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, Korea
| | - J H Choi
- Smile Future Orthodontics, Seoul, Korea.,Department of Orthodontics, School of Dentistry, Seoul National University, Seoul, Korea
| | - Y Kim
- Imagoworks Inc., Seoul, Korea
| | - S H Choi
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, Korea
| | - J H Lee
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, Korea.,Department of Orthodontics, Gangnam Severance Hospital Yonsei University, Seoul, Korea
| | - K H Kim
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, Korea.,Department of Orthodontics, Gangnam Severance Hospital Yonsei University, Seoul, Korea
| | - C J Chung
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, Korea.,Department of Orthodontics, Gangnam Severance Hospital Yonsei University, Seoul, Korea
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Fukuoka K, Kurihara J, Mori M, Arakawa Y, Yoshioka E, Shofuda T, Matsushita Y, Hibiya Y, Honda S, Nakazawa A, Kiyotani C, Kagawa N, Yamasaki K, Ando R, Keino D, Miyairi Y, Akai T, Kanamori M, Ishida J, Park YS, Kawamura A, Sasaki A, Nishikawa R, Date I, Nagane M, Koh K, Ichimura K, Kanemura Y. MEDB-30. Subclassification of Group 3/4 medulloblastoma as a potential prognostic biomarker to reduce the dose of craniospinal irradiation in patients with metastatic tumors: A Japanese Pediatric Molecular Neuro-Oncology Group study. Neuro Oncol 2022. [PMCID: PMC9165094 DOI: 10.1093/neuonc/noac079.404] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
BACKGROUND: In patients with medulloblastoma, one of the most significant challenges is to reduce the dose of craniospinal irradiation (CSI) to minimize neurological sequelae in survivors. Molecular characterization of patients treated using lower-dose CSI rather than standard therapy is important for further reducing the treatment burden. METHODS: We conducted DNA methylation analysis using an Illumina Methylation EPIC array to investigate molecular prognostic markers in 38 patients with medulloblastoma who were registered in the Japan Pediatric Molecular Neuro-Oncology Group and were treated using lower-dose CSI rather than standard-dose radiation therapy. RESULTS: Among the patients, 23 were classified as having a “standard-risk” and 15 as having a “high-risk” according to the classic classification based on tumor resection rate and presence of metastasis, respectively. The median follow-up period was 71.5 months. The median CSI dose was 18 Gy in both groups, and 10 patients in the “high-risk” group received a CSI dose of 23.4 Gy or 24 Gy. Molecular subgrouping revealed the “standard-risk” cohort included 5 WNT, 2 SHH, and 16 Group 3/4 cases; all 15 patients in the “high-risk” cohort had Group 3/4 medulloblastoma. Among the patients with Group 3/4 medulloblastoma, 13 of the 16 “standard-risk” patients were subclassified as subtypes I, IV, VI, and VII, which were associated with a good prognosis according to the novel sub-subclassification among Group 3/4 medulloblastomas. However, only 6 of the 15 “high-risk” patients were included in the subtypes. The good prognostic subtype cases among “high-risk” cohort were all survived without recurrence, in contrast to a worse prognosis (5-year progression free survival=33.3%; p=0.01) of the other cases. CONCLUSION: Although these findings require validation in a larger cohort, the present findings suggest that the novel sub-subclassification of Group 3/4 medulloblastoma may be a promising prognostic biomarker for reducing the dose of CSI in patients with metastatic medulloblastoma.
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Affiliation(s)
- Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Jun Kurihara
- Department of Neurosurgery, Saitama Children’s Medical Center , Saitama , Japan
| | - Makiko Mori
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Ema Yoshioka
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization , Osaka , Japan
| | - Tomoko Shofuda
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization , Osaka , Japan
| | - Yuko Matsushita
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute , Tokyo , Japan
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine , Tokyo , Japan
| | - Yuko Hibiya
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute , Tokyo , Japan
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine , Tokyo , Japan
| | - Satoko Honda
- Department of Clinical Research, Saitama Children’s Medical Center , Saitama , Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children’s Medical Center , Saitama , Japan
| | - Chikako Kiyotani
- Children’s Cancer Center, National Center for Child Health and Development , Tokyo , Japan
| | - Naoki Kagawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine , Osaka , Japan
| | - Kai Yamasaki
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital , Osaka , Japan
| | - Ryo Ando
- Department of Neurosurgery, Chiba Children’s Hospital , Chiba , Japan
| | - Dai Keino
- Division of Hematology/Oncology, Kanagawa Children's Medical Center , Yokohama , Japan
| | - Yosuke Miyairi
- Department of Neurosurgery, Nagano Children’s Hospital , Nagano , Japan
| | - Takuya Akai
- Departments of Neurosurgery, Graduate School of Medicine and Pharmaceutical Science, University of Toyama , Toyama , Japan
| | - Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School of Medicine , Sendai , Japan
| | - Joji Ishida
- Department of Neurological Surgery, Okayama University Graduate School , Okayama , Japan
| | - Young-Soo Park
- Department of Neurosurgery Nara Medical University , Nara , Japan
| | - Atsufumi Kawamura
- Department of Neurosurgery, Hyogo Prefectural Kobe Children's Hospital , Kobe , Japan
| | - Atsushi Sasaki
- Department of Pathology, Saitama Medical University , Moroyama , Japan
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center , Hidaka , Japan
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School , Okayama , Japan
| | - Motoo Nagane
- Department of Neurosurgery, Kyorin University Faculty of Medicine , Mitaka , Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children’s Medical Center , Saitama , Japan
| | - Koichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute , Tokyo , Japan
- Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine , Tokyo , Japan
| | - Yonehiro Kanemura
- Department of Biomedical Research and Innovation, Institute for Clinical Research, Osaka National Hospital, National Hospital Organization , Osaka , Japan
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Okamoto A, Takeshima Y, Yokoyama S, Nishimura F, Nakagawa I, Park YS, Nakase H. Prevalence and Clinical Impact of Cervical Facet Joint Degeneration on Degenerative Cervical Myelopathy: a Novel Computed Tomography Classification Study. Neurospine 2022; 19:393-401. [PMID: 35577337 PMCID: PMC9260546 DOI: 10.14245/ns.2143258.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/25/2022] [Indexed: 11/30/2022] Open
Abstract
Objective To evaluate cervical facet joint degeneration using a newly developed classification, investigate its prevalence and relationship with cervical degenerative spondylolisthesis, and clarify its clinical significance in patients with degenerative cervical myelopathy (DCM).
Methods This study included 145 consecutive patients with DCM who underwent surgical treatment. Clinical variables and radiological findings were analyzed. A new 6-grade computed tomography (CT) classification for cervical facet joint degeneration was adapted, and its prevalence was evaluated by categorizing the joints into those at responsible and those at nonresponsible spinal segmental levels. We evaluated the association between rapidly progressive myelopathy and the presence of significant facet joint degeneration or spondylolisthesis at the responsible segmental level.
Results Finally, 140 patients with a mean age of 64.1 ± 12.8 years were analyzed. The prevalence of grade 1, 2, 3, 4, 5A, and 5B classification in all facet joints was 72.0%, 9.5%, 10.9%, 4.3%, 2.9%, and 0.4%, respectively. There was a statistically significant difference in the distribution of CT grades between the joints at the responsible and nonresponsible segmental levels (p < 0.001), with a high prevalence of grade 4 or 5B degeneration at the responsible segmental level, reflecting articular irregularity. There was also a statistically significant relationship between rapidly progressive myelopathy and grade 4 or 5B degeneration at the responsible segmental level (p < 0.001), but not between rapidly progressive myelopathy and spondylolisthesis (p = 0.255).
Conclusion This novel CT classification for facet joints deserves additional evaluation in patients with DCM. Abnormal findings on the articular surfaces might be related to the progression of myelopathy.
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Affiliation(s)
- Ai Okamoto
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
- Corresponding Author Yasuhiro Takeshima Department of Neurosurgery, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan
| | - Shohei Yokoyama
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University School of Medicine, Kashihara, Japan
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Park YS. [Long-Term Complications and Treatment in Patients with Ventriculo-Peritoneal Shunt Surgery]. No Shinkei Geka 2022; 50:393-410. [PMID: 35400657 DOI: 10.11477/mf.1436204567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The purpose of treatment hydrocephalus is to maintain intracranial pressure, as well as to create a favorable psychomotor developmental environment, particularly in pediatric cases. Various complications associated with shunt surgery require long-term care. When a shunt is performed for neonates and infants with hydrocephalus, proper management is required thereafter during whole their life. The most common complication that can occur as a result of shunt surgery is obstruction of the ventricular catheter. Ventricular catheter obstruction can be avoided by placing that the tip of the catheter is placed in an appropriate position. A further measure would include preventing the ventricular catheter from being pulled out as the skull expands. The next common complication is obstruction of the peritoneal catheter. The risk of occlusion can be reduced by making that the tip of the peritoneal catheter is open-ended as opposed to having side slits. Isolated ventricles and slit ventricle syndrome are peculiar shunt-related conditions that are difficult to treat. When shunt dysfunction occurs, hydrocephalus can progress slowly, but in many cases the patient's condition deteriorates rapidly and requires immediate medical intervention. Recently, neuroendoscopic surgery has been actively performed for cases of shunt dysfunction and prophylactic replacement of peritoneal catheters, and attempts have been made to remove the shunt device. Shunt infection is another troublesome complication in the management of hydrocephalus and has not yet been resolved. However, if all staff involved in shunt surgery have a common understanding and adopt fixed protocols related to preoperative, intraoperative, and postoperative management, the incidence of infection can be significantly reduced. Furthermore, the development of new and improved catheters may also contribute to a reduction in shunt infection. Neurosurgeons should be cognizant that a delay in the diagnosis and treatment of shunt-related complications in patients with hydrocephalus could result in death. Shunt surgery for the treatment of pediatric hydrocephalus is merely the beginning, as neurosurgeons must be responsible for management until the child reaches adulthood.
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Akutsu N, Nonaka M, Narisawa A, Kato M, Harada A, Park YS. Infantile subdural hematoma in Japan: A multicenter, retrospective study by the J-HITs (Japanese head injury of infants and toddlers study) group. PLoS One 2022; 17:e0264396. [PMID: 35213611 PMCID: PMC8880432 DOI: 10.1371/journal.pone.0264396] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 02/08/2022] [Indexed: 11/18/2022] Open
Abstract
Objective
Subdural hematoma in infants or toddlers has often been linked to abuse, but it is not clear how many cases actually occur and how many are suspected of abuse. The purpose of this study was to investigate subdural hematoma in infants and toddlers in Japan.
Methods
This multicenter, retrospective study reviewed the clinical records of children younger than 4 years with head trauma who were diagnosed with any finding on head computed tomography (CT) and/or magnetic resonance imaging (MRI), such as skull fracture and/or intracranial injury. A total of 452 children were included. The group suspected to have been abused was classified as nonaccidental, and the group considered to have been caused by an accident was classified as accidental. Subdural hematoma and other factors were examined on multivariate analysis to identify which factors increase the risk of nonaccidental injuries.
Results
Of the 452 patients, 158 were diagnosed with subdural hematoma. Subdural hematoma was the most common finding intracranial finding in head trauma in infants and toddlers. A total of 51 patients were classified into the nonaccidental group, and 107 patients were classified into the accidental group. The age of patients with subdural hematoma showed a bimodal pattern. The mean age of the accidental group with subdural hematoma was significantly older than that in the nonaccidental group (10.2 months vs 5.9 months, respectively. p < 0.001). Multivariate analysis showed that patients under 5 months old, retinal hemorrhage, and seizure were significant risk factors for nonaccidental injury (odds ratio (OR) 3.86, p = 0.0011; OR 7.63, p < 0.001; OR 2.49, p = 0.03; respectively). On the other hand, the odds ratio for subdural hematoma was 1.96, and no significant difference was observed (p = 0.34).
Conclusions
At least in Japanese children, infantile subdural hematoma was frequently observed not only in nonaccidental but also in accidental injuries. In infants with head trauma, age, the presence of retinal hemorrhage, and the presence of seizures should be considered when determining whether they were abused. Subdural hematoma is also a powerful finding to detect abuse, but care should be taken because, in some ethnic groups, such as the Japanese, there are many accidental cases.
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Affiliation(s)
- Nobuyuki Akutsu
- Department of Neurosurgery, Hyogo Prefectural Kobe Children’s Hospital, Hyogo, Japan
| | - Masahiro Nonaka
- Department of Neurosurgery, Kansai Medical University, Osaka, Japan
- * E-mail:
| | - Ayumi Narisawa
- Department of Neurosurgery, Sendai City Hospital, Miyagi, Japan
| | - Mihoko Kato
- Department of Neurosurgery, Aichi Children’s Health and Medical Center, Aichi, Japan
| | - Atsuko Harada
- Department of Pediatric Neurosurgery, Takatsuki General Hospital, Osaka, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Nara, Japan
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Matsuda R, Hasegawa M, Tamamoto T, Ochi T, Miyasaka T, Inooka N, Hontsu S, Miura S, Takeshima Y, Tamura K, Yamada S, Nishimura F, Nakagawa I, Motoyama Y, Park YS, Nakase H. Linac-based stereotactic radiosurgery and fractionated stereotactic radiotherapy with a micro-multileaf collimator for brain metastasis in the primary motor cortex. J Radiat Res 2022; 63:63-70. [PMID: 34927204 PMCID: PMC8776695 DOI: 10.1093/jrr/rrab111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/04/2021] [Indexed: 05/05/2023]
Abstract
This study aimed to assess the clinical outcomes of linear accelerators (linac)-based, stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (fSRT) with a micro-multileaf collimator for brain metastasis in the primary motor cortex (BMPMC). Thirty-five consecutive patients with BMPMC who were treated by linac-based SRS or fSRT between January 2012 and March 2020 were analyzed. BMPMC was defined as a tumor located in the precentral gyrus on gadolinium-enhanced magnetic resonance imaging (MRI) and T2-weghted imaging (T2WI). In total, 35 patients with 37 metastases were analyzed. The median follow-up time was 13 (range: 1-97) months. The tumor volume was 0.05-26.5 (median: 0.62) cm3. All patients were treated with SRS or fSRT using 35 Gy with 7 Gy per fraction daily. The median survival time (MST) was 16.9 months. The pretreatment KPS and RPA class significantly differed in terms of MST on the log-rank tests. Seven symptomatic patients had hemiparesis before SRS or fSRT. All symptomatic patients, except one with facial paresis and one who died within 3 months, experienced improvement at a 3 month follow-up. None of the patients presented with persistent radiation injury at the final follow-up. Two patients presented with grade 3 radiation-related central nervous system necrosis, which was assessed using the Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. In BMPMC, SRS and fSRT had good tumor control and did not cause serious complications. Therefore, they are suitable treatment options with an acceptable safety profile.
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Affiliation(s)
- Ryosuke Matsuda
- Corresponding author. Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan Tel: +81-744-22-3051 Fax: +81-744-29-0818
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Matsuda R, Morimoto T, Tamamoto T, Inooka N, Ochi T, Miyasaka T, Hontsu S, Yamaki K, Miura S, Takeshima Y, Tamura K, Yamada S, Nishimura F, Nakagawa I, Motoyama Y, Park YS, Hasegawa M, Nakase H. Salvage Surgical Resection after Linac-Based Stereotactic Radiosurgery for Newly Diagnosed Brain Metastasis. Curr Oncol 2021; 28:5255-5265. [PMID: 34940078 PMCID: PMC8699906 DOI: 10.3390/curroncol28060439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/01/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022] Open
Abstract
Background: This study aimed to assess the clinical outcomes of salvage surgical resection (SSR) after stereotactic radiosurgery and fractionated stereotactic radiotherapy (SRS/fSRT) for newly diagnosed brain metastasis. Methods: Between November 2009 and May 2020, 318 consecutive patients with 1114 brain metastases were treated with SRS/fSRT for newly diagnosed brain metastasis at our hospital. During this study period, 21 of 318 patients (6.6%) and 21 of 1114 brain metastases (1.9%) went on to receive SSR after SRS/fSRT. Three patients underwent multiple surgical resections. Twenty-one consecutive patients underwent twenty-four SSRs. Results: The median time from initial SRS/fSRT to SSR was 14 months (range: 2–96 months). The median follow-up after SSR was 17 months (range: 2–78 months). The range of tumor volume at initial SRS/fSRT was 0.12–21.46 cm3 (median: 1.02 cm3). Histopathological diagnosis after SSR was recurrence in 15 cases, and radiation necrosis (RN) or cyst formation in 6 cases. The time from SRS/fSRT to SSR was shorter in the recurrence than in the RNs and cyst formation, but these differences did not reach statistical significance (p = 0.067). The median survival time from SSR and from initial SRS/fSRT was 17 and 74 months, respectively. The cases with recurrence had a shorter survival time from initial SRS/fSRT than those without recurrence (p = 0.061). Conclusions: The patients treated with SRS/fSRT for brain metastasis need long-term follow-up. SSR is a safe and effective treatment for the recurrence, RN, and cyst formation after SRS/fSRT for brain metastasis.
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Affiliation(s)
- Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
- Correspondence: ; Tel.: +81-744-22-3051
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Tetsuro Tamamoto
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
- Department of Medical Informatics, Nara Medical University Hospital, Kashihara 634-8522, Japan
| | - Nobuyoshi Inooka
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Tomoko Ochi
- Department of Radiology, Nara Medical University Hospital, Kashihara 634-8522, Japan; (T.O.); (T.M.)
| | - Toshiteru Miyasaka
- Department of Radiology, Nara Medical University Hospital, Kashihara 634-8522, Japan; (T.O.); (T.M.)
| | - Shigeto Hontsu
- Department of Respiratory Medicine, Nara Medical University Hospital, Kashihara 634-8522, Japan;
| | - Kaori Yamaki
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Sachiko Miura
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Kentaro Tamura
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Yasushi Motoyama
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Masatoshi Hasegawa
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
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Matsuda R, Morimoto T, Tamamoto T, Kotsugi M, Takeshima Y, Tamura K, Yamada S, Nishimura F, Nakagawa I, Park YS, Hasegawa M, Nakase H. MET-5 Salvage surgical resection after linac-based stereotactic radiosurgery and radiotherapy for brain metastasis. Neurooncol Adv 2021. [PMCID: PMC8648144 DOI: 10.1093/noajnl/vdab159.098] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Methods: Between November 2009 and December 2018, 335 consecutive patients with 1085 brain metastases were treated with SRS/fSRT for newly diagnosed brain metastasis at our hospital. Nineteen of 335 patients (5.6%) and 19 of 1044 brain metastases (1.8%) went on to receive SSR after SRS/fSRT during this study period. Two patients underwent multiple surgical resections. Nineteen consecutive patients underwent 21 SSRs. Results: The median time from initial SRS/fSRT to SSR was 14 months (range: 2–96 months). The median follow-up after SSR was 15 months (range: 2–76 months). The range of tumor volume at initial SRS/fSRT was 0.12–21.46 cm3 (median: 2.19 cm3). Histopathological diagnosis after SSR was recurrence, radiation necrosis (RN) and cyst formation in 13 and 6 cases, respectively. The time from SRS/fSRT to SSR were shorter in the recurrence than in the RNs and cyst formation, but these differences did not reach statistical significance (p = 0.07). The median survival time from SSR and from initial SRS/fSRT was 17 months and 74 months, respectively. The cases with recurrence had a significantly shorter survival time from initial SRS/fSRT than those without recurrence (p=0.045).Conclusion: The patients treated with SRS/fSRT for brain metastasis need long-term follow-up. SSR is a safe and effective treatment for the recurrence, RN, and cyst formation after SRS/fSRT for brain metastasis.
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Affiliation(s)
- Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | - Tetsuro Tamamoto
- Department of Radiation Oncology, Nara Medical University, Kashihara, Japan
- Department of Medical Informatics, Nara Medical University Hospital
| | - Masashi Kotsugi
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | | | - Kentaro Tamura
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | | | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
| | - Masatoshi Hasegawa
- Department of Radiation Oncology, Nara Medical University, Kashihara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara, Japan
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Son KJ, Kim YA, Park YS. Economic Burden Attributable to Clostridioides difficile Infections in South Korea: A Nationwide Propensity Score-Matched Study. J Hosp Infect 2021; 120:1-8. [PMID: 34774670 DOI: 10.1016/j.jhin.2021.10.016] [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: 07/25/2021] [Revised: 10/11/2021] [Accepted: 10/25/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Clostridioides (Clostridium) difficile is an important pathogen that causes diarrhoea in patients who take antibacterial drugs. Considering the limited medical resources, it is necessary to prioritize the management of threats caused by antibiotic use and the spread of germs, but there are little available data, especially for C. difficile infections in South Korea. AIMS In this study, we analysed the hospital length of stay (LOS) and the increase in medical costs due to C. difficile infections. METHODS Propensity score-matched experimental (hospitalized patients with C. difficile infection)-control (hospitalized patients without C. difficile infection) studies were conducted to estimate the increase in the LOS and medical costs associated with C. difficile infections. The data were obtained from the National Health Insurance Service-National Sample Cohort from 2006 to 2015. Reliable results were obtained by actively calibrating various confounding variables of demographic characteristics, disease severity, and information on healthcare facilities. FINDINGS The C. difficile-attributable increase in LOS and hospitalization costs were 36.9 days and 8,298 USD, respectively, per infection case. CONCLUSION This study quantified the considerable burden associated with C. difficile infections in South Korea.
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Affiliation(s)
- K J Son
- Department of Biostatistics and Computing, Yonsei University Graduate School, Seoul, Korea; Department of Research and Analysis, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Y A Kim
- Department of Laboratory Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
| | - Y S Park
- Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea; Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea.
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Park JY, Kang CS, Seo HC, Shin JC, Kym SM, Park YS, Shin TS, Kim JG, Kim YK. Bacteria-Derived Extracellular Vesicles in Urine as a Novel Biomarker for Gastric Cancer: Integration of Liquid Biopsy and Metagenome Analysis. Cancers (Basel) 2021; 13:cancers13184687. [PMID: 34572913 PMCID: PMC8468964 DOI: 10.3390/cancers13184687] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary Gastric cancer shows an improved prognosis when diagnosed in its early stage. However, non-invasive diagnostic markers for gastric cancer known to date have poor clinical efficacies. Many studies have shown that gastric cancer patients have distinct microbial changes compared to normal subjects. In the present study, we performed metagenome analysis using body fluid samples (gastric juice, blood, and urine) to investigate the distinct microbial composition using bacteria-derived EVs from gastric cancer patients. We could build diagnostic prediction models for gastric cancer with the metagenomic data and analyzed the accuracy of models. Although further validation is required to apply these findings to real clinical practice yet, our study showed the possibility of gastric cancer diagnosis with the integration of liquid biopsy and metagenome analysis. Abstract Early detection is crucial for improving the prognosis of gastric cancer, but there are no non-invasive markers for the early diagnosis of gastric cancer in real clinical settings. Recently, bacteria-derived extracellular vesicles (EVs) emerged as new biomarker resources. We aimed to evaluate the microbial composition in gastric cancer using bacteria-derived EVs and to build a diagnostic prediction model for gastric cancer with the metagenome data. Stool, urine, and serum samples were prospectively collected from 453 subjects (gastric cancer, 181; control, 272). EV portions were extracted from the samples for metagenome analysis. Differences in microbial diversity and composition were analyzed with 16S rRNA gene profiling, using the next-generation sequencing method. Biomarkers were selected using logistic regression models based on relative abundances at the genus level. The microbial composition of healthy groups and gastric cancer patient groups was significantly different in all sample types. The compositional differences of various bacteria, based on relative abundances, were identified at the genus level. Among the diagnostic prediction models for gastric cancer, the urine-based model showed the highest performance when compared to that of stool or serum. We suggest that bacteria-derived EVs in urine can be used as novel metagenomic markers for the non-invasive diagnosis of gastric cancer by integrating the liquid biopsy method and metagenome analysis.
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Affiliation(s)
- Jae-Yong Park
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul 06973, Korea;
| | - Chil-Sung Kang
- Institute of MD Healthcare Inc., Seoul 03923, Korea; (C.-S.K.); (H.-C.S.); (J.-C.S.); (T.-S.S.)
| | - Ho-Chan Seo
- Institute of MD Healthcare Inc., Seoul 03923, Korea; (C.-S.K.); (H.-C.S.); (J.-C.S.); (T.-S.S.)
| | - Jin-Chul Shin
- Institute of MD Healthcare Inc., Seoul 03923, Korea; (C.-S.K.); (H.-C.S.); (J.-C.S.); (T.-S.S.)
| | - Sung-Min Kym
- Division of Infectious Diseases, Department of Internal Medicine, Sejong Chungnam National University Hospital, Sejong 30099, Korea;
| | - Young-Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea;
| | - Tae-Seop Shin
- Institute of MD Healthcare Inc., Seoul 03923, Korea; (C.-S.K.); (H.-C.S.); (J.-C.S.); (T.-S.S.)
| | - Jae-Gyu Kim
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul 06973, Korea;
- Correspondence: (J.-G.K.); (Y.-K.K.); Tel.: +82-2-6299-3147 (J.-G.K.); +82-2-2655-0766 (Y.-K.K.); Fax: +82-2-6299-1137 (J.-G.K.); +82-2-2655-0768 (Y.-K.K.)
| | - Yoon-Keun Kim
- Institute of MD Healthcare Inc., Seoul 03923, Korea; (C.-S.K.); (H.-C.S.); (J.-C.S.); (T.-S.S.)
- Correspondence: (J.-G.K.); (Y.-K.K.); Tel.: +82-2-6299-3147 (J.-G.K.); +82-2-2655-0766 (Y.-K.K.); Fax: +82-2-6299-1137 (J.-G.K.); +82-2-2655-0768 (Y.-K.K.)
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Jeon J, Park YS, Woo S, Lim D, Son J, Kim S. Effect of Ge Mole Fraction on Performance of Underlapped Gate-All-Around SiGe-Source Tunneling Field-Effect Transistors. J Nanosci Nanotechnol 2021; 21:4310-4314. [PMID: 33714319 DOI: 10.1166/jnn.2021.19401] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this paper, we propose the design optimization of underlapped Si1-xGex-source tunneling field-effect transistors (TFETs) with a gate-all-around structure. The band-to-band tunneling rates, tunneling barrier widths, I-V transfer characteristics, threshold voltages, on/off current ratios, and subthreshold swings (SSs) were analyzed by varying the Ge mole fraction of the Si1-xGex source using a commercial device simulator. In particular, a Si0.2Ge0.8-source TFET among our proposed TFETs exhibits an on/off current ratio of approximately 1013, and SS of 27.4 mV/dec.
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Affiliation(s)
- Juhee Jeon
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Young-Soo Park
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sola Woo
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Doohyeok Lim
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jaemin Son
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sangsig Kim
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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Nakagawa I, Park H, Kotsugi M, Myouchin K, Takeshima Y, Matsuda R, Yamada S, Park YS, Nakase H. Hypocapnia Induced by Hyperventilation with Indocyanine Green Kinetics Detects the Effect of Staged Carotid Angioplasty to Avoid Hyperperfusion in Patients with Impaired Cerebral Hemodynamic Reserve. Transl Stroke Res 2021; 13:77-87. [PMID: 33959854 DOI: 10.1007/s12975-021-00911-7] [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: 01/08/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 10/21/2022]
Abstract
Cerebral hyperperfusion syndrome (CHS) is a serious complication following carotid artery stenting (CAS). Staged angioplasty (AP) could potentially prevent CHS and hyperperfusion phenomenon (HPP) after revascularization. However, methods for measuring the effects of staged AP on cerebral hemodynamic reserve have not been established. Here, we evaluated whether indocyanine green kinetics and near-infrared spectroscopy (ICG-NIRS) with hypocapnia induced by hyperventilation can detect the effects of staged AP on hemodynamic reserve to prevent CHS after CAS. Participants comprised 44 patients at high risk of CHS, whose ipsilateral cerebrovascular reactivity (CVR) was impaired on preoperative single photon emission computed tomography (SPECT). Patients were divided into a staged AP group (n=13) and a regular CAS group (n=31). In the staged AP group, stenting was performed 3 weeks after staged AP. In the regular CAS group, 16 cases (52%) showed HPP, and five (16%) presented with CHS after CAS, while no HPP or CHS occurred in the staged AP group (p=0.001). Changes in blood flow index (BFI) and time to peak (TTP) ratio during hypocapnia calculated from ICG-NIRS indicated a significant linear relationship with preprocedural CVR on SPECT (r=-0.710, 0.632, respectively; p<0.0001 each). BFI and TTP ratios during hypocapnia were significantly improved after staged AP (p<0.001 each). Furthermore, significant linear correlations were observed between BFI and TTP ratio during hypocapnia and postoperative asymmetry index AI (r=0.405, -0.475, respectively; p<0.01 each). Hypocapnia induced by hyperventilation under ICG-NIRS appears useful for detecting the effects of staged AP on hemodynamic reserve in patients at high risk of CHS.
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Affiliation(s)
- Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
| | - HunSoo Park
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - Masashi Kotsugi
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - Kaoru Myouchin
- Department of Radiology, Nara Medical University, Nara, Japan
| | - Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
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Lee S, Park YS, Chang WJ, Choi JY, Lim A, Kim B, Lee SB, Lee JW, Kim SH, Kim J, Kwak JM, Yoon KC, Lee SH, Kim YH. Clinical Implication of Liquid Biopsy in Colorectal Cancer Patients Treated with Metastasectomy. Cancers (Basel) 2021; 13:cancers13092231. [PMID: 34066481 PMCID: PMC8125778 DOI: 10.3390/cancers13092231] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND & AIMS The application of circulating tumor DNA (ctDNA) has been studied for predicting recurrent disease after surgery and treatment response during systemic treatment. Metastasectomy can be curative for well-selected patients with metastatic colorectal cancer (mCRC). This prospective study investigated the ctDNA level before and after metastasectomy in patients with mCRC to explore its potential as a predictive biomarker. METHODS We collected data on 98 metastasectomies for mCRC performed from March 2017 to February 2020. Somatic mutations in the primary and metastatic tumors were identified and tumor-informed ctDNAs were selected by ultra-deep targeted sequencing. Plasma samples were mandatorily collected before and 3-4 weeks after metastasectomy and serially, if patients agreed. RESULTS Data on 67 of 98 metastasectomies (58 patients) meeting the criteria were collected. ctDNA was detected in 9 (29%) of 31 cases treated with upfront metastasectomy and in 7 (19.4%) of 36 cases treated with metastasectomy after upfront chemotherapy. The detection rate of ctDNA was higher in liver metastasis (p = 0.0045) and tumors measuring ≥1 cm (p = 0.0183). ctDNA was less likely to be detected if the response to chemotherapy was good. After metastasectomy, ctDNA was found in 4 (6%) cases with rapid progressive disease. CONCLUSION The biological factors affecting the ctDNA shedding from the tumor should be considered when applying ctDNA assays in a clinical setting. After metastasectomy for oligometastatic lesions in good responders of chemotherapy, most ctDNA was cleared or existed below the detection level. To assist clinical decision making after metastasectomy for mCRC using ctDNA, further studies for improving specific outcomes are needed.
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Affiliation(s)
- Soohyeon Lee
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea; (S.L.); (W.-J.C.); (J.Y.C.); (A.L.)
| | - Young-Soo Park
- Korea University Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea; (Y.-S.P.); (B.K.); (S.-B.L.); (J.-W.L.)
| | - Won-Jin Chang
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea; (S.L.); (W.-J.C.); (J.Y.C.); (A.L.)
| | - Jung Yoon Choi
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea; (S.L.); (W.-J.C.); (J.Y.C.); (A.L.)
| | - Ahreum Lim
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea; (S.L.); (W.-J.C.); (J.Y.C.); (A.L.)
| | - Boyeon Kim
- Korea University Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea; (Y.-S.P.); (B.K.); (S.-B.L.); (J.-W.L.)
| | - Saet-Byeol Lee
- Korea University Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea; (Y.-S.P.); (B.K.); (S.-B.L.); (J.-W.L.)
| | - Jong-Won Lee
- Korea University Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea; (Y.-S.P.); (B.K.); (S.-B.L.); (J.-W.L.)
| | - Seon-Hahn Kim
- Department of Surgery, Korea University College of Medicine, Seoul 02841, Korea; (S.-H.K.); (J.K.); (J.-M.K.); (K.-C.Y.)
| | - Jin Kim
- Department of Surgery, Korea University College of Medicine, Seoul 02841, Korea; (S.-H.K.); (J.K.); (J.-M.K.); (K.-C.Y.)
| | - Jung-Myun Kwak
- Department of Surgery, Korea University College of Medicine, Seoul 02841, Korea; (S.-H.K.); (J.K.); (J.-M.K.); (K.-C.Y.)
| | - Kyung-Chul Yoon
- Department of Surgery, Korea University College of Medicine, Seoul 02841, Korea; (S.-H.K.); (J.K.); (J.-M.K.); (K.-C.Y.)
| | - Sung-Ho Lee
- Department of Thoracic and Cardiovascular Surgery, Korea University College of Medicine, Seoul 02841, Korea;
| | - Yeul Hong Kim
- Division of Medical Oncology and Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Korea; (S.L.); (W.-J.C.); (J.Y.C.); (A.L.)
- Korea University Cancer Research Institute, Korea University College of Medicine, Seoul 02841, Korea; (Y.-S.P.); (B.K.); (S.-B.L.); (J.-W.L.)
- Correspondence: ; Tel.: +82-2-920-5569; Fax: +82-2-926-4534
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Morimoto T, Nakazawa T, Matsuda R, Nishimura F, Nakamura M, Yamada S, Nakagawa I, Park YS, Tsujimura T, Nakase H. CRISPR-Cas9–mediated TIM3 knockout in human Natural Killer Cells Enhances Growth Inhibitory Effects on Human Glioma Cells. The Journal of Immunology 2021. [DOI: 10.4049/jimmunol.206.supp.68.17] [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] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Abstract
Glioblastoma (GBM) is the most common and aggressive primary malignant brain tumor in adults. Natural Killer (NK) cells are potent cytotoxic effector cells against tumor cells inducing GBM cells; therefore, NK cell based-immunotherapy might be a promising target in GBM. T cell immunoglobulin mucin family member 3 (TIM3), a receptor expressed on NK cells, has been suggested as a marker of dysfunctional NK cells. We established TIM3 knockout in NK cells, using the clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9). Electroporating of TIM3 exon 2- or exon 5-targeting guide RNA-Cas9 protein complexes (RNPs) inhibited TIM3 expression on NK cells with varying efficacy. T7 endonuclease I mutation detection assays showed that both RNPs disrupted the intended genome sites. The expression of other checkpoint receptors, i.e., programmed cell death 1 (PD1), Lymphocyte-activation gene 3 (LAG3), T cell immunoreceptor with Ig and ITIM domains (TIGIT), and TACTILE (CD96) were unchanged on the TIM3 knockout NK cells. Real time cell growth assays revealed that TIM3 knockout enhanced NK cell–mediated growth inhibition of GBM cells. These results demonstrated that TIM3 knockout enhanced human NK cell mediated cytotoxicity on GBM cells. Future, CRISPR-Cas9 mediated TIM3 knockout in NK cells may prove to be a promising immunotherapeutic alternative in patient with GBM.
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Takatani T, Motoyama Y, Park YS, Kim T, Hayashi H, Nakagawa I, Kawaguchi M, Nakase H. Tetanic stimulation of the pudendal nerve prior to transcranial electrical stimulation augments the amplitude of motor evoked potentials during pediatric neurosurgery. J Neurosurg Pediatr 2021; 27:707-715. [PMID: 33892470 DOI: 10.3171/2020.10.peds20674] [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: 08/05/2020] [Accepted: 10/05/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Reportedly, tetanic stimulation prior to transcranial electrical stimulation (TES) facilitates elicitation of motor evoked potentials (MEPs) by a mechanism involving increased corticomotoneuronal excitability in response to somatosensory input. However, the posttetanic MEP following stimulation of a pure sensory nerve has never been reported. Furthermore, no previous reports have described posttetanic MEPs in pediatric patients. The aim of this study was to investigate the efficacy of posttetanic MEPs in pediatric neurosurgery patients and to compare the effects on posttetanic MEP after tetanic stimulation of the sensory branch of the pudendal nerve versus the standard median and tibial nerves, which contain a mixture of sensory and motor fibers. METHODS In 31 consecutive pediatric patients with a mean age of 6.0 ± 5.1 years who underwent lumbosacral surgery, MEPs were elicited by TES without tetanic stimulation (conventional MEPs [c-MEPs]) and following tetanic stimulation of the unilateral median and tibial nerves (mt-MEPs) and the sensory branch of the pudendal nerve (p-MEP). Compound muscle action potentials were elicited from abductor pollicis brevis (APB), gastrocnemius (Gc), tibialis anterior (TA), and adductor hallucis (AH) muscles. The success rate of monitoring each MEP and the increases in the ratios of mt-MEP and p-MEP to c-MEP were investigated. RESULTS The success rate of monitoring p-MEPs was higher than those of mt-MEPs and c-MEPs (87.5%, 72.6%, and 63.3%, respectively; p < 0.01, adjusted by Bonferroni correction). The mean increase in the ratio of p-MEP to c-MEP for all muscles was significantly higher than that of mt-MEP to c-MEP (3.64 ± 4.03 vs 1.98 ± 2.23, p < 0.01). Subanalysis of individual muscles demonstrated significant differences in the increases in the ratios between p-MEP and mt-MEP in the APB bilaterally, as well as ipsilateral Gc, contralateral TA, and bilateral AH muscles. CONCLUSIONS Tetanic stimulation prior to TES can augment the amplitude of MEPs during pediatric neurosurgery, the effect being larger with pudendal nerve stimulation than tetanic stimulation of the unilateral median and tibial nerves. TES elicitation of p-MEPs might be useful in pediatric patients in whom it is difficult to elicit c-MEPs.
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Affiliation(s)
| | | | | | | | - Hironobu Hayashi
- 3Anesthesiology, Nara Medical University, Kashihara, Nara, Japan
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Morimoto T, Nakazawa T, Matsuda R, Nishimura F, Nakamura M, Yamada S, Nakagawa I, Park YS, Tsujimura T, Nakase H. CRISPR-Cas9-Mediated TIM3 Knockout in Human Natural Killer Cells Enhances Growth Inhibitory Effects on Human Glioma Cells. Int J Mol Sci 2021; 22:3489. [PMID: 33800561 PMCID: PMC8036491 DOI: 10.3390/ijms22073489] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 12/27/2022] Open
Abstract
Glioblastoma (GBM) is the most common and aggressive primary malignant brain tumor in adults. Natural Killer (NK) cells are potent cytotoxic effector cells against tumor cells inducing GBM cells; therefore, NK cell based- immunotherapy might be a promising target in GBM. T cell immunoglobulin mucin family member 3 (TIM3), a receptor expressed on NK cells, has been suggested as a marker of dysfunctional NK cells. We established TIM3 knockout in NK cells, using the clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9). Electroporating of TIM3 exon 2- or exon 5-targeting guide RNA- Cas9 protein complexes (RNPs) inhibited TIM3 expression on NK cells with varying efficacy. T7 endonuclease I mutation detection assays showed that both RNPs disrupted the intended genome sites. The expression of other checkpoint receptors, i.e., programmed cell death 1 (PD1), Lymphocyte-activation gene 3 (LAG3), T cell immunoreceptor with Ig and ITIM domains (TIGIT), and TACTILE (CD96) were unchanged on the TIM3 knockout NK cells. Real time cell growth assays revealed that TIM3 knockout enhanced NK cell-mediated growth inhibition of GBM cells. These results demonstrated that TIM3 knockout enhanced human NK cell mediated cytotoxicity on GBM cells. Future, CRISPR-Cas9 mediated TIM3 knockout in NK cells may prove to be a promising immunotherapeutic alternative in patient with GBM.
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Affiliation(s)
- Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
- Grandsoul Research Institute for Immunology, Inc., Uda, Nara 633-2221, Japan
| | - Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
| | - Mitsutoshi Nakamura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
- Clinic Grandsoul Nara, Uda, Nara 633-2221, Japan;
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
| | | | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara 634-8521, Japan; (T.N.); (R.M.); (F.N.); (M.N.); (S.Y.); (I.N.); (Y.-S.P.); (H.N.)
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Abstract
In this study, we propose an integrate-and-fire (I&F) neuron circuit using a p-n-p-n diode that utilizes a latch-up phenomenon and investigate the I&F operation without external bias voltages using mixed-mode technology computer-aided design (TCAD) simulations. The neuron circuit composed of one p-n-p-n diode, three MOSFETs, and a capacitor operates with no external bias lines, and its I&F operation has an energy consumption of 0.59 fJ with an energy efficiency of 96.3% per spike. The presented neuron circuit is superior in terms of structural simplicity, number of external bias lines, and energy efficiency in comparison with that constructed with only MOSFETs. Moreover, the neuron circuit exhibits the features of controlling the firing frequency through the amplitude and time width of the synaptic pulse despite of the reduced number of the components and no external bias lines.
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Affiliation(s)
- Young-Soo Park
- Department of Electrical Engineering, Korea University, Seoul, South Korea
| | - Sola Woo
- Department of Electrical Engineering, Korea University, Seoul, South Korea
| | - Doohyeok Lim
- Department of Electrical Engineering, Korea University, Seoul, South Korea
| | - Kyoungah Cho
- Department of Electrical Engineering, Korea University, Seoul, South Korea
| | - Sangsig Kim
- Department of Electrical Engineering, Korea University, Seoul, South Korea
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Park YS, Lim D, Son J, Jeon J, Cho K, Kim S. Inverting logic-in-memory cells comprising silicon nanowire feedback field-effect transistors. Nanotechnology 2021; 32:225202. [PMID: 33618339 DOI: 10.1088/1361-6528/abe894] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
In this paper, we propose inverting logic-in-memory (LIM) cells comprising silicon nanowire feedback field-effect transistors with steep switching and holding characteristics. The timing diagrams of the proposed inverting LIM cells under dynamic and static conditions are investigated via mixed-mode technology computer-aided design simulation to verify the performance. The inverting LIM cells have an operating speed of the order of nanoseconds, an ultra-high voltage gain, and a longer retention time than that of conventional dynamic random access memory. The disturbance characteristics of half-selected cells within an inverting LIM array confirm the appropriate functioning of the random access memory array.
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Affiliation(s)
- Young-Soo Park
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Doohyeok Lim
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jaemin Son
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Juhee Jeon
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Kyoungah Cho
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sangsig Kim
- Department of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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Kim SW, Roh J, Lee HS, Ryu MH, Park YS, Park CS. Expression of the immune checkpoint molecule V-set immunoglobulin domain-containing 4 is associated with poor prognosis in patients with advanced gastric cancer. Gastric Cancer 2021; 24:327-340. [PMID: 32924090 DOI: 10.1007/s10120-020-01120-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 02/07/2020] [Accepted: 09/03/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Recent clinical studies on immune checkpoint (IC) inhibitors in the context of advanced gastric cancer (AGC) have failed to show significant survival benefits but have suggested the possible role of IC inhibitors in anti-AGC immunity. Considering the low efficacy of targeted drugs in AGC, there is an urgent need for the discovery of new targets for the development of immunotherapeutics and prognostic markers for patient selection. This study aimed to investigate the expression of a new IC molecule, V-set Ig domain-containing 4 (VSIG4), and its clinical significance in AGC and other major cancers. METHODS We analyzed the expression of VSIG4 and its correlation with survival in various carcinomas, including 882 surgically resected samples from patients with stage II-III AGC (two academic hospitals). RESULTS VSIG4 positivity in AGC was significantly associated with overall survival (OS; Hazard ratio (HR) = 2.661, 95% confidence interval [CI] = 2.012-3.519, P < 0.001) and event-free survival (HR = 2.8, 95% CI = 2.18-3.72, P < 0.001). These findings were successfully validated in independent cohorts. VSIG4 expression was also significantly correlated with low intratumoral CD8 + T-cell infiltration (CD8i) (P = 0.029) and high Foxp3 + /CD8i ratio (P = 0.026), which is consistent with the previously reported immunological function of VSIG4. However, VSIG4 expression was not associated with survival in other cancers (colon, P = 0.459; lung, P = 0.275; kidney, P = 0.121; breast, P = 0.147). CONCLUSION Our results suggest that VSIG4 is an independent prognostic factor in AGC and also implies that VSIG4 is a second-tier IC molecule in AGC, thus, providing an important basis for the development of gastric cancer-specific immunotherapeutics.
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Affiliation(s)
- So-Woon Kim
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.,Department of Pathology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Republic of Korea
| | - Jin Roh
- Department of Pathology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Min-Hee Ryu
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Young-Soo Park
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
| | - Chan-Sik Park
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
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