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2014 Fiscal Year Annual Research Report

ヘリコバクター・ピロリCagA抗体の迅速検出キットの開発

Research Project

Project/Area Number 25860544
Research InstitutionOita University

Principal Investigator

塩田 星児  大分大学, 医学部, 医員 (00420646)

Project Period (FY) 2013-04-01 – 2015-03-31
Keywordsピロリ / CagA
Outline of Annual Research Achievements

ELISAにてCagA抗体価を測定し、その中から4種類の血清を選別した(A: ピロリ菌抗体陰性、CagA抗体陰性、B: ピロリ菌抗体陽性、CagA抗体陽性(高力価)、C: ピロリ菌抗体陽性、CagA抗体陽性(低力価)、D: ピロリ菌抗体陽性、CagA抗体陰性)。
次にスティックタイプのイムノクロマトキットを作製した。固相化抗原CagAと金コロイド標識抗ヒトIgG抗体の組み合わせで、抗CagA抗体検出用イムノクロマトキットの構築は可能となった。
結果、A: 陰性血清による非特異反応は見られなかった。BおよびC検体では強い陽性反応を認めたが、バンドには差は認めなかった。バンドの強さはB、C検体よりは弱かったが、D検体でも陽性反応を認めた。
次に非特異的バンドを抑制するため、非特異吸収剤の効果を検討した。その結果C検体ではバンドのやや薄くなったが、その他の検体ではバンドの強さは変化を認めなかった。今後、プラスミドベクター由来の蛋白の影響、弱陽性反応を示しているヒト正常血清についてのCagA抗体の有無について、検討が必要である。

  • Research Products

    (14 results)

All 2015 2014

All Journal Article (14 results) (of which Peer Reviewed: 14 results,  Acknowledgement Compliant: 14 results,  Open Access: 5 results)

  • [Journal Article] Differences in interleukin 8 expression in Helicobacter pylori-infected gastric mucosa tissues from patients in Bhutan and the Dominican Republic.2015

    • Author(s)
      Nagashima H, Iwatani S, Cruz M, Jiménez Abreu JA, Tronilo L, Rodríguez E, Disla M, Terao H, Uchida T, Mahachai V, Vilaichone RK, Tshering L, Mitsui T, Shiota S, Graham DY, Yamaoka Y.
    • Journal Title

      Hum Pathol.

      Volume: 46 Pages: 129-136

    • DOI

      10.1016/j.humpath.2014.10.006

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Prevalence of Helicobacter pylori infection and atrophic gastritis in patients with dyspeptic symptoms in Myanmar.2015

    • Author(s)
      Myint T, Shiota S, Vilaichone RK, Ni N, Aye TT, Matsuda M, Tran TT, Uchida T, Mahachai V, Yamaoka Y.
    • Journal Title

      World J Gastroenterol.

      Volume: 21 Pages: 620-627

    • DOI

      10.3748/wjg.v21.i2.620

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Antibiotic Resistance of Helicobacter pylori Among Male US Veterans.2015

    • Author(s)
      Shiota S, Reddy R, Alsarraj A, El-Serag HB, Graham DY.
    • Journal Title

      Clin Gastroenterol Hepatol.

      Volume: in press Pages: in press

    • DOI

      10.1016/j.cgh.2015.02.005

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] The Prevalence of Helicobacter pylori Remains High in African American and Hispanic Veterans.2015

    • Author(s)
      Nguyen T, Ramsey D, Graham D, Shaib Y, Shiota S, Velez M, Cole R, Anand B, Vela M, El-Serag HB.
    • Journal Title

      Helicobacter.

      Volume: in press Pages: in press

    • DOI

      10.1111/hel.12199

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Identification of Helicobacter pylori infection in symptomatic patients in Surabaya, Indonesia, using five diagnostic tests.2015

    • Author(s)
      Miftahussurur M, Shiota S, Suzuki R, Matsuda M, Uchida T, Kido Y, Kawamoto F, Maimunah U, Adi P, Rezkitha Y, Nasronudin, Nusi I, Yamaoka Y.
    • Journal Title

      Epidemiol Infect.

      Volume: 143 Pages: 986-996

    • DOI

      10.1017/S095026881400154X

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Strategy for the Treatment of Helicobacter pylori Infection.2014

    • Author(s)
      Shiota S, Yamaoka Y.
    • Journal Title

      Curr Pharm Des.

      Volume: 20 Pages: 4489-4500

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Discovery of novel mutations for clarithromycin resistance in Helicobacter pylori by using next-generation sequencing.2014

    • Author(s)
      Binh TT, Shiota S, Suzuki R, Matsuda M, Trang TT, Kwon DH, Iwatani S, Yamaoka Y.
    • Journal Title

      J Antimicrob Chemother.

      Volume: 69 Pages: 1796-1803

    • DOI

      10.1093/jac/dku050

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Virulence genes of Helicobacter pylori in the Dominican Republic.2014

    • Author(s)
      Shiota S, Cruz M, Jiménez Abreu JA, Mitsui T, Terao H, Disla M, Iwatani S, Nagashima H, Matsuda M, Uchida T, Tronilo L, Rodríguez E, Yamaoka Y.
    • Journal Title

      J Med Microbiol.

      Volume: 63 Pages: 1189-1196

    • DOI

      10.1099/jmm.0.075275-0

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Serum Helicobacter pylori CagA antibody titer as a useful marker for advanced inflammation in the stomach in Japan.2014

    • Author(s)
      Shiota S, Murakami K, Okimoto T, Kodama M, Yamaoka Y.
    • Journal Title

      J Gastroenterol Hepatol.

      Volume: 29 Pages: 67-73

    • DOI

      10.1111/jgh.12359

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Helicobacter pylori-infection introduces DNA double-strand breaks in host cells.2014

    • Author(s)
      Hanada K, Uchida T, Tsukamoto Y, Watada M, Yamaguchi N, Yamamoto K, Shiota S, Moriyama M, Graham DY, Yamaoka Y.
    • Journal Title

      Infect Immun.

      Volume: 82 Pages: 4182-4189

    • DOI

      10.1128/IAI.02368-14

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Identification of the Genes That Contribute to Lactate Utilization in Helicobacter pylori.2014

    • Author(s)
      Iwatani S, Nagashima H, Reddy R, Shiota S, Graham DY, Yamaoka Y.
    • Journal Title

      PLoS One.

      Volume: 9 Pages: e103506

    • DOI

      10.1371/journal.pone.0103506

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Helicobacter pylori from Gastric Cancer and Duodenal Ulcer Show Same Phylogeographic Origin in the Andean Region in Colombia.2014

    • Author(s)
      Shiota S, Suzuki R, Matsuo Y, Miftahussurur M, Tran TT, Binh TT, Yamaoka Y.
    • Journal Title

      PLoS One.

      Volume: 9 Pages: e105392

    • DOI

      10.1371/journal.pone.0105392

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Virulence Genes of Helicobacter pylori in Gastritis, Peptic Ulcer and Gastric Cancer in Laos.2014

    • Author(s)
      Vannarath S, Vilaichone RK, Rasachak B, Mairiang P, Yamaoka Y, Shiota S, Binh TT, Mahachai V.
    • Journal Title

      Asian Pac J Cancer Prev.

      Volume: 15 Pages: 9027-9031

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Biomarkers for Helicobacter pylori infection and gastroduodenal diseases.2014

    • Author(s)
      Shiota S, Yamaoka Y.
    • Journal Title

      Biomark Med.

      Volume: 8 Pages: 1127-1137

    • DOI

      10.2217/bmm.14.72

    • Peer Reviewed / Acknowledgement Compliant

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Published: 2016-06-01  

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