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2014 Fiscal Year Research-status Report

癌性カヘキシーに対する炎症性サイトカイン抑制を促す物理療法の治療戦略

Research Project

Project/Area Number 25560261
Research InstitutionKobe University

Principal Investigator

藤野 英己  神戸大学, 保健学研究科, 教授 (20278998)

Co-Investigator(Kenkyū-buntansha) 石原 昭彦  京都大学, 人間・環境学研究科(研究院), 教授 (90184548)
近藤 浩代  名古屋女子大学, 家政学部, 准教授 (50333183)
村上 慎一郎  姫路獨協大学, 公私立大学の部局等, 教授 (30454763)
Project Period (FY) 2013-04-01 – 2016-03-31
Keywordsカヘキシー / 電気刺激 / 筋萎縮
Outline of Annual Research Achievements

本研究はカヘキシーに伴う骨格筋の萎縮とその原因となるメディエータ発現の抑制を物理療法治療の一つである電気刺激療法が可能かについて検証している.カヘキシーによる筋萎縮を惹起するメディエータとして炎症性サイトカインが知られている.一方,筋収縮はマイオカインを発現させ,筋機能の改善を促すと共に筋タンパク質の異化作用を促進する因子の発現を抑制すると考えられる.
平成26年度はリポ多糖誘導カヘキシーによるマウス骨格筋の萎縮モデルによる低周波電気刺激の萎縮予防効果と炎症性サイトカイン・筋タンパク質の異化作用を促進する因子の抑制効果について検証した.その結果,低周波電気刺激はカヘキシー誘導筋萎縮に対して筋線維横断面積の減少を予防した.電気刺激により血中の炎症性サイトカインの増加は抑制できなかったが,筋タンパク質の異化作用を促進するユビキチン,筋特異的ユビキチンリガーゼの発現やFoxOのリン酸化を抑制した.また,筋タンパク質の同化に関与するAkt-1のリン酸化も促すことが確認できた.また,カヘキシーによる筋萎縮では筋代謝障害が生じた.低周波電気刺激は筋代謝活性(クエン酸合成酵素,コハク酸脱水素酵素)の低下を減衰させることが確認された.低周波電気刺激は筋代謝に関与するPGC-1アルファ発現の低下を抑制することやp38リン酸化の増加を減衰させることが確認できた.これらの結果からカヘキシー誘導筋萎縮に対して低周波電気刺激は筋萎縮を惹起するメディエータである炎症性サイトカインを減少させることは困難であるが,筋萎縮や筋代謝障害を予防する効果があると結論づけられる.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

平成26年度はカヘキシーに伴う骨格筋の萎縮とその原因となるメディエータ発現の抑制を物理療法治療の一つである電気刺激療法が可能かについて検証した.さらに筋タンパク質の異化作用や代謝障害を促進する因子の発現を抑制できるかについても検証した.その結果,骨格筋の萎縮と代謝障害の予防効果や作用機序の一部を確認できた.平成27年度は,さらに採用機序について検討を重ねる計画である.

Strategy for Future Research Activity

平成27年度はカヘキシーに伴う骨格筋の萎縮や代謝障害に対する低周波電気刺激の予防効果について検証し,作用機序やマイオカインの関与について検討する計画である.カヘキシーでは筋タンパク質の異化作用を促進すると共に筋代謝障害も惹起する.カヘキシー状態の骨格筋では筋特異的ユビキチンリガーゼの発現やFoxOのリン酸化がみられ,さらにPGC-1アルファ発現の低下やp38リン酸化の増加が観察された.一方,電気刺激による治療を行うことで筋萎縮や代謝障害で発現する因子や発現が低下する因子の改善がみられたが,血中の炎症性サイトカイン量は電気刺激により変化を示さなかった.骨格筋では筋萎縮や代謝障害の改善が観察されたことから,骨格筋内での炎症性サイトカインやマイオカイン,細胞内のシグナル伝達経路を検討し,電気刺激の効果について作用機序等を検討する計画である.

Causes of Carryover

ほぼ計画通りに使用したが,最終調整を実施しなかったために少額の残金が生じた.

Expenditure Plan for Carryover Budget

次年度の消耗品購入に使用する予定である.

  • Research Products

    (27 results)

All 2015 2014

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Acknowledgement Compliant: 4 results,  Open Access: 1 results) Presentation (17 results)

  • [Journal Article] Low-intensity running exercise enhances the capillary volume and pro-angiogenic factors in the soleus muscle of type 2 diabetic rats2015

    • Author(s)
      Kondo H, Fujino H, Murakami S, Tanaka M, Kanazashi M, Nagatomo F, Ishihara A, Roy RR.
    • Journal Title

      Muscle Nerve

      Volume: 51 Pages: 391-399

    • DOI

      10.1002/mus.24316

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Effects of microgravity on the mouse triceps brachii muscle.2015

    • Author(s)
      Ishihara A, Nagatomo F, Terada M, Fujino H, Kondo H, Ishioka N.
    • Journal Title

      Muscle Nerve

      Volume: 51 Pages: in press

    • DOI

      10.1002/mus.24491

    • Peer Reviewed
  • [Journal Article] Influence of electrical stimulation on calpain and ubiquitin-proteasome systems in the denervated and unloaded rat tibialis anterior muscles2014

    • Author(s)
      Matsumoto A, Fujita N, Arakawa T, Fujino H, Miki A.
    • Journal Title

      Acta histochemica

      Volume: 116 Pages: 936-942

    • DOI

      10.1016/j.acthis.2014.03.006

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] The morphological changes in the capillary architecture of the tibial nerve associated with spontaneous aging and aerobic exercise intervention during aging in rats.2014

    • Author(s)
      Sakita M, Murakami S, Fujino H.
    • Journal Title

      J Phys Ther Sci

      Volume: 26 Pages: 263-267

    • DOI

      10.1589/jpts.26.263.

    • Peer Reviewed
  • [Journal Article] Identification of interneurons activated at different inclines during treadmill locomotion in adult rats.2014

    • Author(s)
      Tillakaratne N, Duru P, Fujino H, Zhong H, Xiao M, Edgerton VR, Roy RR
    • Journal Title

      J Neurosci Res

      Volume: 92 Pages: 1714-1722

    • DOI

      10.1002/jnr.23437

    • Peer Reviewed
  • [Journal Article] Amelioration of capillary regression and atrophy of the soleus muscle in hindlimb unloaded rats by astaxanthin supplementation and intermittent loading2014

    • Author(s)
      Kanazashi M, Tanaka M, Murakami S, Kondo H, Nagatomo F, Ishihara A, Roy RR, Fujino H.
    • Journal Title

      Exp Physiol

      Volume: 99 Pages: 1065-1077

    • DOI

      10.1113/expphysiol.2014.079988

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Exposure to mild hyperbaric oxygen increases blood flow and resting energy expenditure but not oxidative stress2014

    • Author(s)
      Ishihara A, Nagatomo F, Fujino H, Kondo H.
    • Journal Title

      J Sci Res Reports

      Volume: 3 Pages: 1886-1896

    • DOI

      10.9734/JSRR/2014/10101

    • Peer Reviewed
  • [Journal Article] Influence of estrogen receptor α polymorphisms on bone density in response to habitual exercise in Japanese postmenopausal women.2014

    • Author(s)
      Kondo H, Fujino H, Nagatomo F, Ishihara A.
    • Journal Title

      ScientificWorldJournal

      Volume: 2014 Pages: 2014:593927

    • DOI

      10.1155/2014/593927

    • Peer Reviewed / Open Access
  • [Journal Article] Electrical stimulation using sine waveform prevents unloading-induced muscle atrophy in the deep calf muscles of rat.2014

    • Author(s)
      Tanaka M, Hirayama Y, Fujita N, Fujino H.
    • Journal Title

      Acta Histochem

      Volume: 116 Pages: 1192-1198

    • DOI

      10.1016/j.acthis.2014.06.009

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Capillary growth and regression in skeletal muscle2014

    • Author(s)
      Fujino H, Kondo H, Nagatomo F, Ishihara A.
    • Journal Title

      J Phys Fitness Sports Med

      Volume: 5 Pages: 483-491

    • DOI

      10.7600/jpfsm.3.483

    • Peer Reviewed
  • [Presentation] Nucleoprotein supplementation enhances protein synthesis and myonuclear accretion during the recovery of disuse muscle atrophy2015

    • Author(s)
      Nakanishi R, Hirayama Y, Tanaka M, Maeshige N, Kondo H, Ishihara A, Fujino H.
    • Organizer
      Int symposuim on human adaptation to environment and whole-body coordination
    • Place of Presentation
      神戸大学(兵庫県神戸市)
    • Year and Date
      2015-03-14 – 2015-03-16
  • [Presentation] Combined effects of nucleoprotein supplementation with weight bearing on mitochondrial function in soleus muscle during hindlimb unloading2015

    • Author(s)
      Hirayama Y, Hongo Y, Nakanishi R, Maeshige N, Kondo H, Ishihara A, Fujino H.
    • Organizer
      Int symposuim on human adaptation to environment and whole-body coordination
    • Place of Presentation
      神戸大学(兵庫県神戸市)
    • Year and Date
      2015-03-14 – 2015-03-16
  • [Presentation] Electrical stimulation attenuates inflammation and atrophy of skeletal muscle under cachectic condition2015

    • Author(s)
      Tanaka K, Tanaka M, Takegaki J, Fujino H.
    • Organizer
      Int symposuim on human adaptation to environment and whole-body coordination
    • Place of Presentation
      神戸大学(兵庫県神戸市)
    • Year and Date
      2015-03-14 – 2015-03-16
  • [Presentation] Regression of capillary network and expression imbalance between vascular endothelial growth factor and thrombospondin-1 in soleus muscle of ovariectomized rat2015

    • Author(s)
      Tanaka M, Kanazashi M, Maezawa T, Kondo H, Ishihara A, Fujino H
    • Organizer
      Int symposuim on human adaptation to environment and whole-body coordination
    • Place of Presentation
      神戸大学(兵庫県神戸市)
    • Year and Date
      2015-03-14 – 2015-03-16
  • [Presentation] Propolis attenuates the capillary regression and anti-angiogenic factor expression in unloading-induced atrophy of skeletal muscle2014

    • Author(s)
      Fujino H, Kondo H, Kanazashi M, Tanaka M, Ishihara A.
    • Organizer
      American Society for Cell Biology meeting
    • Place of Presentation
      Pennsylvania Convention Center(アメリカ)
    • Year and Date
      2014-12-06 – 2014-12-10
  • [Presentation] Capillary and metabolic actions of exercise in skeletal muscle of type 2 diabetes2014

    • Author(s)
      Kondo H, Fujino H, Nagatomo F, Ishihara A.
    • Organizer
      American Society for Cell Biology meeting
    • Place of Presentation
      Pennsylvania Convention Center(アメリカ)
    • Year and Date
      2014-12-06 – 2014-12-10
  • [Presentation] Relation of aerobic exercise training about blood sugar level and muscle capillaries in type 2 diabetes mellitus rat2014

    • Author(s)
      Murakami S, Mizuno T, Sakita M, Kanazashi M, Tanaka M, Tanaka M, Fujino H.
    • Organizer
      Beijing international rehabilitation forum
    • Place of Presentation
      China National Convention Center (中国)
    • Year and Date
      2014-09-19 – 2014-09-21
  • [Presentation] Nucleoprotein supplementation enhances the recovery of muscle atrophy after hindlimb unloading2014

    • Author(s)
      Fujino H, Nakanishi R, Kondo H, Nagatomo F, Ishihara A.
    • Organizer
      American College of Sports Medicine
    • Place of Presentation
      Orange County Convention Center(アメリカ)
    • Year and Date
      2014-05-27 – 2014-05-31
  • [Presentation] Gene polymorphisms and nutrients affect bone density and skeletal muscle mass in Japanese young women2014

    • Author(s)
      Kondo H, Fujino H, Murakami S, Nagatomo F, Ishihara A.
    • Organizer
      American College of Sports Medicine
    • Place of Presentation
      Orange County Convention Center(アメリカ)
    • Year and Date
      2014-05-27 – 2014-05-31
  • [Presentation] Heart rate variability Analyses using wearable sensing system in response to parabolic flight2014

    • Author(s)
      Fujino H, Kondo H, Hirayama Y, Maezawa T, Tanaka M, Tsutou A, Shinozaki R, Nagatomo F, Ishihara A.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30
  • [Presentation] Nucleoprotein supplementation combined with intermittent loading prevents capillary regression induced by hindlimb unloading in rat soleus muscle2014

    • Author(s)
      Hirayama Y, Nakanishi R, Maeshige N, Fujino H.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30
  • [Presentation] The enhanced effect of nucleoprotein in the recovery process of disuse muscle atrophy2014

    • Author(s)
      Nakanishi R, Hirayama Y, Tanaka M, Maeshige N, Fujino H.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30
  • [Presentation] Astaxanthin attenuates lipopolysaccharide- induced atrogin-1 expression in C2C12 myotubes2014

    • Author(s)
      Takegaki J, Kondo H, Fujino H.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30
  • [Presentation] Effects of aerobic exercise on capillary architecture of extensor digitorum longus in rat2014

    • Author(s)
      Murakami S, Sakita M, Kondo H, Kanazashi M, Tanaka M, Tanaka M, Ohtsuka A, Momota R, Fujino H.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30
  • [Presentation] The preventive effects of middle frequency electrical stimulation combined with eccentric contraction on disuse atrophy in deep portion of calf muscles2014

    • Author(s)
      Tanaka M, Murakami S, Fujita N, Fujino H.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30
  • [Presentation] Difference between spontaneous aging and aerobic exercise during aging on the capillary architecture in the tibial nerve in rats2014

    • Author(s)
      Sakita M, Murakami S, Fujino H.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30
  • [Presentation] Relation of genetic polymorphisms and nutrient with bone density and skeletal muscle mass in Japanese young women2014

    • Author(s)
      Kondo H, Fujino H, Nagatomo F, Ishihara A.
    • Organizer
      Experimental Biology
    • Place of Presentation
      San Diego Convention Center(アメリカ)
    • Year and Date
      2014-04-26 – 2014-04-30

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Published: 2016-05-27  

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