Category: 03_Study

  • Untangling the role of mutant histone H3 in diffuse intrinsic pontine glioma

    올해 저널 발표에서 이 글에서 언급된 논문 2개를 정리해 보는 것을 고려해 볼 수 있겠음. [1]

    1.
    Creasy C. Untangling the role of mutant histone H3 in diffuse intrinsic pontine glioma. Nat Med. 2017 Apr 7;23(4):413–4. [PubMed]
  • Histopathologic Features of Colitis Due to Immunotherapy With Anti-PD-1 Antibodies

    Immune check point drug 가 널리 사용되고 있다. 그리고 그에 따른 부작용(adverse drug reaction)이 있으며, 그 중에 하나라고 할 수 있는 장염의 조직학적 소견에 관한 논문을 찾았다. 초록에서 필요한 부분을 발췌하였음.[1]

    • The most common pattern of injury observed (5/8 cases) was an active
      colitis with neutrophilic crypt microabscesses and with prominent
      crypt epithelial cell apoptosis and crypt atrophy/dropout.
    • The remainder of cases (3/8) showed a lymphocytic colitis-like pattern, characterized by increased intraepithelial lymphocytes and surface epithelial injury. Apoptosis was also often increased in these cases but crypt atrophy/dropout was not present.
    • In patients who experienced recurrence of anti-PD-1 colitis, histologic features were similar to the initial insult but, in addition, features of chronicity developed that mimicked inflammatory bowel disease (basal
      lymphoplasmacytosis and crypt architectural irregularity, and
      Paneth cell metaplasia in 1 case).
    1.
    Chen J, Pezhouh M, Lauwers G, Masia R. Histopathologic Features of Colitis Due to Immunotherapy With Anti-PD-1 Antibodies. Am J Surg Pathol. 2017 May 1;41(5):643–54. [PubMed]
  • Immunohistochemical features of the gastrointestinal tract tumors

    오늘 아침에 slide conference 를 하다가 lower GI tract 의 NET는 chromogranin A 가 잘 나오지 않는 현상에 대한 언급이 있었다. 왜 그렇게 되는지에 대한 언급은 없으나 foregut 및 midgut 에 비하여 hindgut 에 발생하는 NET는 chromogranin A 및 CD56 발현이 잘 보이지 않는다는 언급이 있는 review article 을 찾을 수 있었다. [1]  위치에 따라서 주로 분비하는 molecules 이 다르기 때문일 것으로 추정됨.

     

    1.
    Wong H, Chu P. Immunohistochemical features of the gastrointestinal tract tumors. J Gastrointest Oncol. 2012 Sep 1;3(3):262–84. [PubMed]
  • SMARCB1/INI1 Loss in Epithelioid Schwannoma

    INI1 과 관련된 질병군도 조만간 생길 것 같음 [1]

    1.
    Jo V, Fletcher C. SMARCB1/INI1 Loss in Epithelioid Schwannoma: A Clinicopathologic and Immunohistochemical Study of 65 Cases. Am J Surg Pathol. 2017 Mar 31; [PubMed]