井山 諭 (イヤマ サトシ)

写真a

所属

医学部 血液内科学

職名

助教

ホームページ

https://kaken.nii.ac.jp/d/r/50398319.ja.html

経歴 【 表示 / 非表示

  • 2022年04月
    -
    継続中

    札幌医科大学   検査部   副部長

  • 2021年02月
    -
    継続中

    札幌医科大学   血液内科学   講師

  • 2007年
    -
    2021年02月

    札幌医科大学   医学部   助教

研究分野 【 表示 / 非表示

  • ライフサイエンス   血液、腫瘍内科学  

researchmapの所属 【 表示 / 非表示

  • 札幌医科大学   検査部   副部長  

 

研究キーワード 【 表示 / 非表示

  • シグナル伝達

  • 分子標的

  • 活性酸素

  • 内科

  • CD34陽性細胞

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論文 【 表示 / 非表示

  • Intravenous Infusion of Autologous Mesenchymal Stem Cells Expanded in Auto Serum for Chronic Spinal Cord Injury Patients: A Case Series.

    Ryosuke Hirota, Masanori Sasaki, Satoshi Iyama, Kota Kurihara, Ryunosuke Fukushi, Hisashi Obara, Tsutomu Oshigiri, Tomonori Morita, Masahito Nakazaki, Takahiro Namioka, Ai Namioka, Rie Onodera, Yuko Kataoka-Sasaki, Shinichi Oka, Mitsuhiro Takemura, Ryo Ukai, Takahiro Yokoyama, Yuichi Sasaki, Tatsuro Yamashita, Masato Kobayashi, Yusuke Okuma, Reiko Kondo, Ryo Aichi, Satoko Ohmatsu, Noritaka Kawashima, Yoichi M Ito, Masayoshi Kobune, Kohichi Takada, Sumio Ishiai, Toru Ogata, Atsushi Teramoto, Toshihiko Yamashita, Jeffery D Kocsis, Osamu Honmou

    Journal of clinical medicine   13 ( 20 )  2024年10月  [国際誌]

     概要を見る

    Objective: The safety, feasibility, and potential functional improvement following the intravenous infusion of mesenchymal stem cells (MSCs) were investigated in patients with chronic severe spinal cord injury (SCI). Methods: The intravenous infusion of autologous MSCs cultured in auto-serum under Good Manufacturing Practices (GMP) was administered to seven patients with chronic SCI (ranging from 1.3 years to 27 years after the onset of SCI). In addition to evaluating feasibility and safety, neurological function was evaluated using the American Spinal Injury Association Impairment Scale (AIS), International Standards for Neurological Classification of Spinal Cord Injury (ISCSCI-92), and Spinal Cord Independence Measure III (SCIM-III). Results: No serious adverse events occurred. Neither CNS tumors, abnormal cell growth, nor neurological deterioration occurred in any patients. While this initial case series was not blinded, significant functional improvements and increased quality of life (QOL) were observed at 90 and 180 days post-MSC infusion compared to pre-infusion status. One patient who had an AIS grade C improved to grade D within six months after MSC infusion. Conclusions: This case series suggests that the intravenous infusion of autologous MSCs is a safe and feasible therapeutic approach for chronic SCI patients. Furthermore, our data showed significant functional improvements and better QOL after MSC infusion in patients with chronic SCI. A blind large-scale study will be necessary to fully evaluate this possibility.

    DOI PubMed

  • Intravenous Infusion of Autologous Mesenchymal Stem Cells Expanded in Auto Serum for Chronic Spinal Cord Injury Patients: A Case Series

    Ryosuke Hirota, Masanori Sasaki, Satoshi Iyama, Kota Kurihara, Ryunosuke Fukushi, Hisashi Obara, Tsutomu Oshigiri, Tomonori Morita, Masahito Nakazaki, Takahiro Namioka, Ai Namioka, Rie Onodera, Yuko Kataoka-Sasaki, Shinichi Oka, Mitsuhiro Takemura, Ryo Ukai, Takahiro Yokoyama, Yuichi Sasaki, Tatsuro Yamashita, Masato Kobayashi, Yusuke Okuma, Reiko Kondo, Ryo Aichi, Satoko Ohmatsu, Noritaka Kawashima, Yoichi M. Ito, Masayoshi Kobune, Kohichi Takada, Sumio Ishiai, Toru Ogata, Atsushi Teramoto, Toshihiko Yamashita, Jeffery D. Kocsis, Osamu Honmou

    Journal of Clinical Medicine   13 ( 20 )  2024年10月

     概要を見る

    Objective: The safety, feasibility, and potential functional improvement following the intravenous infusion of mesenchymal stem cells (MSCs) were investigated in patients with chronic severe spinal cord injury (SCI). Methods: The intravenous infusion of autologous MSCs cultured in auto-serum under Good Manufacturing Practices (GMP) was administered to seven patients with chronic SCI (ranging from 1.3 years to 27 years after the onset of SCI). In addition to evaluating feasibility and safety, neurological function was evaluated using the American Spinal Injury Association Impairment Scale (AIS), International Standards for Neurological Classification of Spinal Cord Injury (ISCSCI-92), and Spinal Cord Independence Measure III (SCIM-III). Results: No serious adverse events occurred. Neither CNS tumors, abnormal cell growth, nor neurological deterioration occurred in any patients. While this initial case series was not blinded, significant functional improvements and increased quality of life (QOL) were observed at 90 and 180 days post-MSC infusion compared to pre-infusion status. One patient who had an AIS grade C improved to grade D within six months after MSC infusion. Conclusions: This case series suggests that the intravenous infusion of autologous MSCs is a safe and feasible therapeutic approach for chronic SCI patients. Furthermore, our data showed significant functional improvements and better QOL after MSC infusion in patients with chronic SCI. A blind large-scale study will be necessary to fully evaluate this possibility.

    DOI

  • Novel method for assessing sinusoidal obstruction syndrome using four‐dimensional computed tomography

    Saori Shimoyama‐Ibuki, Satoshi Iyama, Yoshiya Ohashi, Kento Ono, Yusuke Sugama, Chisa Fujita, Akari Goto, Hiroto Horiguchi, Akihito Fujimi, Takeo Tanaka, Kohichi Takada, Koh‐Ichi Sakata, Masayoshi Kobune

    eJHaem ( Wiley )   2024年07月

     概要を見る

    Abstract Introduction To diagnose sinusoidal obstruction syndrome/veno‐occlusive disease (SOS/VOD), transabdominal ultrasonography is usually used to detect hemodynamic changes, but we tried to detect the changes using four‐dimensional computed tomography (4D‐CT). A 42‐year‐old Japanese woman was diagnosed with late‐onset SOS/VOD with transabdominal ultrasonography and was also assessed using 4D‐CT. Method We analyzed the portal vein (PV) contrast effect every 1.5 seconds and plotted the values of the contrast effect. With this graph, we analyzed three hemodynamic parameters. Result We found that these parameters correlated with the patient's status and indicated stasis due to sinusoid constriction. Conclusion 4D‐CT may become a helpful tool to diagnose and follow up with SOS/VOD.

    DOI

  • Intravenous infusion of auto-serum-expanded autologous mesenchymal stem cells into chronic severe brain injury patients

    Tomohiro Yamaki, Shinichi Oka, Satoshi Iyama, Masanori Sasaki, Rie Onodera, Yuko Kataoka-Sasaki, Takahiro Namioka, Ai Namioka, Masahito Nakazaki, Mitsuhiro Takemura, Ryo Ukai, Takahiro Yokoyama, Yuichi Sasaki, Tatsuro Yamashita, Masato Kobayashi, Misako Yamaguchi, Marina Fukino, Taro Takazawa, Megumi Hayasaka, Takamitsu Owaku, Mika Funakura, Shinji Onodera, Yoichi M. Ito, Masayoshi Kobune, Junji Kato, Sumio Ishiai, Jeffery D. Kocsis, Masaru Odaki, Yasuo Iwadate, Shigeki Kobayashi, Osamu Honmou

    Interdisciplinary Neurosurgery: Advanced Techniques and Case Management   36  2024年06月

     概要を見る

    Objective: This study explores safety, feasibility, and potential improvement in functional status after intravenous infusion of mesenchymal stem cells (MSCs) in chronic severe brain injury (BI) patients. Methods: An intravenous infusion of autologous MSCs in autoserum cultured under Good Manufacturing Practice was delivered to four chronic patients with BI. In addition to assessing feasibility and safety, neurological function was evaluated using the National Institutes of Health Stroke Scale, Fugl-Meyer Assessment, Barthel Index, and cognitive-related behavioral assessment. Imaging studies with 18F-FDG-PETCT and 11C-methionine-PETCT (METPET) were carried out to evaluate brain metabolic activity. Results: No serious adverse events were recorded. None of the patients developed CNS tumors, abnormal cell growth, or neurological deterioration. While this initial case series was not blinded, gradual functional improvement was observed after MSC infusion. Serial 11C-METPETs displayed a statistically significant increase in methionine uptake, primarily in the thalamus and pons. Conclusion: We emphasize that this study was unblinded and did not exclude placebo effects, the contribution of endogenous recovery, or observer bias; however, our observations support feasibility and safety. No adverse events were observed. The data suggests improved quality of life after infused MSCs; however, a blinded, larger-scale study will be necessary to fully address this possibility.

    DOI

  • Anti‐CD38 antibody isatuximab monotherapy for Japanese individuals with relapsed/refractory multiple myeloma: An update of the phase 1/2 ISLANDs study

    Kazutaka Sunami, Shin‐ichi Fuchida, Kenshi Suzuki, Masaki Ri, Morio Matsumoto, Chihiro Shimazaki, Hideki Asaoku, Hirohiko Shibayama, Kenichi Ishizawa, Hiroyuki Takamatsu, Takashi Ikeda, Dai Maruyama, Kazunori Imada, Michihiro Uchiyama, Toru Kiguchi, Satoshi Iyama, Hirokazu Murakami, Reiko Onishi, Keisuke Tada, Shinsuke Iida

    Hematological Oncology ( Wiley )  41 ( 3 ) 442 - 452  2022年12月

     概要を見る

    Abstract The primary analysis of the phase 1/2 ISLANDs study in Japanese individuals with relapsed/refractory multiple myeloma (RRMM) showed that isatuximab monotherapy was well tolerated and effective, even in participants with high‐risk cytogenetic abnormalities. Here, we report a prespecified second analysis conducted 20 months after the first dosing of the last participant (ClinicalTrials.gov identifier: NCT02812706). The primary objectives were to evaluate the safety and tolerability of isatuximab in phase 1 and to evaluate the efficacy of isatuximab, including assessment of overall response rate (ORR) at the recommended dose (RD), in phase 2. In phase 1, three participants received isatuximab 10 mg/kg every week (QW) for 4 weeks/cycle followed by every 2 weeks (Q2W) and five participants received 20 mg/kg QW/Q2W. Since no dose‐limiting toxicities occurred in phase 1, 20 mg/kg QW/Q2W was identified as the RD for the phase 2 study (n = 28). At the time of data cut‐off, three participants (one in phase 1 and two in phase 2) continued to receive isatuximab; disease progression and treatment‐related adverse events were the most common reasons for treatment discontinuation. The overall safety profile was consistent with the primary analysis. One death, not related to isatuximab treatment, was reported since the first analysis. The ORR and clinical benefit rate remained unchanged from the primary analysis at 36.4% (95% confidence interval [CI]: 20.4%–54.9%) and 54.5% (95% CI: 36.4%–71.9%), respectively. The median progression‐free survival (PFS) was 5.6 months, longer than the median PFS reported in the primary analysis (4.7 months), whereas median overall survival was not reached. Overall, isatuximab 20 mg/kg QW/Q2W had an acceptable safety and tolerability profile and showed promising antitumor activity in Japanese individuals with RRMM.

    DOI

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  • Prospective evaluation of alternative donor from unrelated donor and cord blood in adult acute leukemia and myelodysplastic syndrome

    Seitaro Terakura, Tetsuya Nishida, Masashi Sawa, Tomonori Kato, Kotaro Miyao, Yukiyasu Ozawa, Tatsunori Goto, Akio Kohno, Kazutaka Ozeki, Yasushi Onishi, Noriko Fukuhara, Nobuharu Fujii, Hisayuki Yokoyama, Masanobu Kasai, Hiroatsu Iida, Nobuhiro Kanemura, Tomoyuki Endo, Hiroatsu Ago, Makoto Onizuka, Satoshi Iyama, Yuichiro Nawa, Mika Nakamae, Yasuyuki Nagata, Shingo Kurahashi, Yasuo Tomiya, Atsumi Yanagisawa, Ritsuro Suzuki, Yachiyo Kuwatsuka, Yoshiko Atsuta, Koichi Miyamura, Makoto Murata

    Bone Marrow Transplantation ( Springer Science and Business Media LLC )  55 ( 7 ) 1399 - 1409  2020年07月  [査読有り]   [ 国際誌 ]

     概要を見る

    A prospectively registered observational study was conducted to assess the significance of allogeneic hematopoietic stem cell transplantation from highly HLA-matched unrelated donors (UD) and cord blood (CB) on outcomes in adult acute leukemia (AL) and myelodysplastic syndrome (MDS). Between 2007 and 2015, 231 transplant-eligible patients were registered for a phase 2 study of alternative donor transplantation. After registration, a sufficient time period was given to find appropriate UD. Patients received CB transplantation (CBT) if an appropriate UD was unavailable. In total, 119 patients received CBT (106 AL and 13 MDS) and 91 patients received UD transplantation (UDT) (86 AL and 5 MDS). The median age was 39 years in both groups. The primary objective was overall survival (OS); secondary objectives included cumulative incidences of non-relapse mortality (NRM) and relapse, and disease-free survival. Diagnosis, disease status at transplantation, refined disease risk index, and hematopoietic cell transplant-specific comorbidity index did not differ between UDT and CBT. In multivariate analyses, graft source was not a significant risk factor for all objectives. In adjusted analyses, UDT and CBT showed similar OS, NRM, and relapse in this prospective study. CB can be a comparable alternative stem cell source to UD by achieving a timely transplant.

    DOI PubMed

  • Prospective Evaluation of Alternative Donor from Unrelated Volunteer Donor and Cord Blood in Adult Acute Leukemia and Myelodysplastic Syndrome: No Difference between Unrelated Donor and Cord Blood

    Seitaro Terakura, Tetsuya Nishida, Masashi Sawa, Tomonori Kato, Kotaro Miyao, Yukiyasu Ozawa, Tatsunori Goto, Akio Kohno, Kazutaka Ozeki, Yasushi Onishi, Noriko Fukuhara, Nobuharu Fujii, Hisayuki Yokoyama, Masanobu Kasai, Hiroatsu Iida, Nobuhiro Kanemura, Tomoyuki Endo, Hiroatsu Ago, Makoto Onizuka, Satoshi Iyama, Yuichiro Nawa, Mika Nakamae, Yasuyuki Nagata, Shingo Kurahashi, Yasuo Tomiya, Atsumi Yanagisawa, Ritsuro Suzuki, Yachiyo Kuwatsuka, Yoshiko Atsuta, Koichi Miyamura, Makoto Murata

    BLOOD ( AMER SOC HEMATOLOGY )  134  2019年11月

    研究発表ペーパー・要旨(国際会議)  

     概要を見る

    0

    DOI

  • 【悪性黒色腫】 播種性骨髄癌腫症を呈した悪性黒色腫の1例

    澤田 匡秀, 澄川 靖之, 佐藤 さゆり, 菅 裕司, 加藤 潤史, 肥田 時征, 山下 利春, 橋本 亜香利, 井山 諭

    皮膚科の臨床 ( 金原出版(株) )  59 ( 13 ) 1963 - 1966  2017年12月

     概要を見る

    79歳女。約2年前に左第4趾に黒色結節を自覚し、徐々に増大した。全切除生検を施行し、病理組織学的所見より悪性黒色腫と診断した。全身検索で他臓器転移を認めず、足趾離断術とセンチネルリンパ節生検を施行した。摘出した4個のリンパ節全てに転移を認めたため、鼠径、外腸骨、閉鎖リンパ節郭清を追加した。郭清したリンパ節に転移はなかった。pT3bN3M0 Stage IIICと診断し、術後化学療法としてDAV-Feron療法を計6クール施行した。以後はフェロン局注療法を継続していたが、術後約3年3ヵ月で突然強い腰痛が出現した。各種画像所見、臨床検査所見、骨髄生検の病理組織所見より、悪性黒色腫による播種性骨髄癌腫症とした。化学療法を施行するも改善なく、入院から19日後に永眠された。

    DOI

  • P53-RESTORING SMALL MOLECULE CP-31398 INDUCES APOPTOSIS VIA INDUCTION OF REACTIVE OXIDATIVE SPECIES IN HUMAN MULTIPLE MYELOMA

    Y. Arihara, K. Takada, Y. Kawano, N. Hayasaka, H. Nakamura, S. Kikuchi, Y. Kamihara, K. Murase, H. Ikeda, S. Iyama, T. Sato, K. Miyanishi, M. Kobune, J. Kato

    HAEMATOLOGICA ( FERRATA STORTI FOUNDATION )  102   498 - 498  2017年06月

    研究発表ペーパー・要旨(国際会議)  

  • Next Generation Sequencing of CD138+Myeloma Cells Could Predict Response Rate and Appropriate Therapy at Diagnosis

    Hiroshi Ikeda, Yasushi Sasaki, Soushi Ibata, Masahiro Yoshida, Ayumi Tatekoshi, Satoshi Iyama, Kazuyuki Murase, Kohichi Takada, Shohei Kikuchi, Tsutomu Sato, Masayoshi Kobune, Junji Kato

    BLOOD ( AMER SOC HEMATOLOGY )  128 ( 22 )  2016年12月

    研究発表ペーパー・要旨(国際会議)  

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  • 小越章平記念 Best Paer in The Year 2021

    2022年05月   日本臨床栄養代謝学会   Possible clinical outcomes using early enteral nutrition in individuals with allogeneic hematopoietic stem cell transplantation: A single-center retrospective study.  

    受賞者: 井山 諭

共同研究・競争的資金等の研究課題 【 表示 / 非表示

  • 造血微細環境における神経ペプチド-PTH2R系に着目した新規AML治療法の開発

    基盤研究(C)

    研究期間:

    2022年04月
    -
    2025年03月
     

    小船 雅義, 井山 諭, 池田 博, 後藤 亜香利, 堀口 拓人

  • 骨髄内細胞外小胞によるAML/MDSの病態進展機構の解析

    基盤研究(C)

    研究期間:

    2019年04月
    -
    2022年03月
     

    小船 雅義, 井山 諭, 池田 博, 後藤 亜香利, 菊地 尚平

    担当区分: 研究分担者

     研究概要を見る

    急性骨髄性白血病(AML)由来の細胞外小胞中に高濃度に内包されるマイクロRNAであるmiR-7977について解析を行った。AML細胞内および骨髄間葉系幹細胞(MSC)内のmiR-7977濃度を定量的PCRで測定したところ、AML細胞内のmiR-7977は、MSC内のそれに比べ、約100倍高度であった。申請者らは、これまで骨髄間質液中の細胞外小胞中にmiR-7977が高度に内包されていることを報告してきたが、miR-7977は細胞外小胞が骨髄性白血病細胞由来であることを示すマーカーの一つと考えられた。また、骨髄間質液中の細胞外小胞中miR-7977は白血病細胞由来であることが示唆された。次に、miR-7977の機能について解析を行った。miR-7977のmimicを市販のMSCに導入し、コントロールを導入したMSCと比較解析を行った。その結果、miR-7977導入MSC細胞内で、STEAP3, GDF15, SLC7A11の遺伝子発現が増加し、STK4, ZNF439, STEAP1, SOD2, ZNF383, PCBP1, MT1X, VAMP3の発現低下が認められた。これらの遺伝子は、スプライシングの他、鉄、銅、亜鉛代謝、Hippoシグナルに係わることから、今後、パスウエイ解析やGene set enrichment(GSEA)解析などを用い、miR-7977がMSCに引き起こす異常に関して、より詳細な検討が必要と考えられた。また、急性骨髄性白血病(AML)由来の細胞外小胞中には、miR-7977の他に、miR-8073やmiR-4286が高濃度に内包されていることも明らかとなった。文献を検索するとmiR-8073およびmiR-4286の機能の解析は他の癌腫で進められているが、造血組織での解析は進められておらず、今後の研究の進展状況によっては、これらのマイクロRNAの解析も必要と考えられる。

  • DPP8/9阻害剤を用いた新たな多発性骨髄腫の治療法の開発

    基盤研究(C)

    研究期間:

    2015年04月
    -
    2018年03月
     

    井山 諭, 佐藤 勉, 小船 雅義

    担当区分: 研究代表者

     研究概要を見る

    多発性骨髄腫の予後は新薬の登場によって改善されたものの、造血幹細胞移植を行ってすら治癒を得られる症例はなく、新たな機序の治療法が希求されている。我々はこれまでにDPP4ファミリーに属するDPP8/9の活性を阻害する1G244 は骨髄腫細胞にアポトーシス細胞死を誘導することを見出した。このことはDPP8/9 の阻害を機序とする新たな骨髄腫の治療を示唆していると考えている。そこで本研究では、1G244 の抗骨髄腫効果を検討し、更にそのシグナルを解析した。

  • ナローバンドUVBによる制御性T細胞の誘導を介したGVHDに対する新規治療の開発

    基盤研究(C)

    研究期間:

    2013年04月
    -
    2016年03月
     

    佐藤 勉, 井山 諭, 河野 豊, 河野 豊

    担当区分: 研究分担者

     研究概要を見る

    Graft versus host disease (GVHD)は、同種造血幹細胞移植における代表的な合併症であり、免疫抑制剤などでこれの十分なコントロールが得られない場合、患者の生命予後は著しく不良である。一方、これまで申請者らは、難治性皮膚GVHDの症例にnarrow-band ultraviolet B (NB-UVB)を照射する自主臨床研究を行って、この紫外線療法の優れた効果を報告してきた。そこで今回、マウスの移植モデルを用いて、NB-UVB照射が消化管や肝のGVHDにも有効か検討した。

  • MDS進展における酸化的DNA傷害の意義とその修復を目論んだ鉄キレート療法の確立

    挑戦的萌芽研究

    研究期間:

    2012年04月
    -
    2015年03月
     

    小船 雅義, 菊地 尚平, 井山 諭, 加藤 淳二

    担当区分: 研究分担者

     研究概要を見る

    MDSにおける遊離鉄とそれを介した酸化ストレスの病態生理に与える影響は不明である。本研究では、鉄キレート剤デフェラシロクス投与前後の、末梢血単核球 (PBMC) 中の8-OHdG量を解析した。MDS 患者のPBMC の8-OHdG量は、健常人に比べて有意に高かった。さらに、血清フェリチン量、8-OHdG量および染色体異常との間に、正の相関が認められた。MDS 患者のPBMC 中の8-OHdG量は、鉄キレート剤投与により有意に減少した。したがって、MDS の病態生理に過剰鉄は関与し、鉄キレート療法が、MDSの病態進行を抑制できる可能性が示された。

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