Category: 03_Study

  • Single-cell profiling of breast cancer T cells reveals a tissue-resident memory subset associated with improved prognosis

    종양의 예후 예측에 있어서 TIL의 중요성이 증가되고 있는게 요즘 종양 치료 분야이다. 문제는 TIL의 특성을 알아내는 것이 어렵다는 것. 고전적인 방법으로 IHC를 하는 것은 항체의 적절성 문제, 여러번 section을 내는 경우 다른 세포가 보인다는 문제가 있다. 그래서 나온 것이 multiplex IHC를 기반으로 한 방법들이다. IHC 발색에 형광을 이용해서 이를 이용하는 방법을 그동안 비교적 최신의 방법으로  받아들여졌다.

    최근에 나온 논문에서는 single cell sequencing 방법을 이용해서 TIL의 종류를 파악하는 방법을 이용하였다.1 비용만 충분하다면 정말 못해볼 방법은 없는 것 같다.

    1.
    Savas P, Virassamy B, Ye C, et al. Single-cell profiling of breast cancer T cells reveals a tissue-resident memory subset associated with improved prognosis. Nat Med. June 2018. [PubMed]
  • Chemotherapy versus chemoradiotherapy after surgery and preoperative chemotherapy for resectable gastric cancer (CRITICS): an international, open-label, randomised phase 3 trial

    환자군이 조금 까다롭다. Resectable gastric cancer 환자에 대하여 굳이 preoperative chemo를 할 필요가 있을지 모르겠다.1

    1.
    Cats A, Jansen E, van G, et al. Chemotherapy versus chemoradiotherapy after surgery and preoperative chemotherapy for resectable gastric cancer (CRITICS): an international, open-label, randomised phase 3 trial. Lancet Oncol. 2018;19(5):616-628. [PubMed]
  • Prostate cancer grading: a decade after the 2005 modified system.

    Gleason grade를 자꾸 까먹어서 기록해둠.1

    1.
    Epstein J. Prostate cancer grading: a decade after the 2005 modified system. Mod Pathol. 2018;31(S1):S47-63. [PubMed]
  • A Newly Recognized Histologic Pattern of IgG4-related Lymphadenopathy: Expanding the Morphologic Spectrum

    이 논문에서는 다음의 5가지로 분류하고 있음.1

    The type I pattern is characterized by multicentric Castleman disease–like morphology.
    The type II pattern is reactive follicular hyperplasia-like with occasional eosinophils in the interfollicular regions.
    The type III pattern is characterized by interfollicular plasmacytosis and immunoblasts, with preserved nodal architecture, paracortical hyperplasia, small vessel proliferation, and a polymorphous infiltrate rich in IgG4-positive plasma cells.
    The type IV pattern shows PTGC-like morphology characterized by large nodules of lymphocytes and IgG4-positive plasma cells distributed in the germinal centers of the nodules.
    The type V pattern shows inflammatory pseudotumor-like morphology, similar to that of extranodal lesions.

    1.
    Chen Y, Chen Y, Wang M, Medeiros L, Chang K. A Newly Recognized Histologic Pattern of IgG4-related Lymphadenopathy: Expanding the Morphologic Spectrum. Am J Surg Pathol. 2018;42(7):977-982. [PubMed]