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Quantifying Tertiary Lymphoid Structure-Associated Genes in Formalin-Fixed Paraffin-Embedded Breast Cancer Tissues.

par Gu-Trantien, Chunyan ;Garaud, Soizic ;Migliori, Edoardo ;Solinas, Cinzia ;Lodewyckx, Jean Nicolas;Willard-Gallo, Karen
Référence Methods in molecular biology, 1845, page (139-157)
Publication Publié, 2018

Article révisé par les pairs

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Résumé :

Tertiary lymphoid structures (TLS) have been detected in several types of human solid tumors. These structures are thought to regulate local adaptive immune responses that can promote or antagonize tumor progression. Despite positive prognostic values associated with a TLS presence in several studies, discrepancies still exist. TLS are structurally organized entities composed of varying numbers of multiple cell types making their assessment in tumor tissues, particularly biopsies, challenging. Immunohistochemical staining of TLS-related cell populations is the most frequently used method for identifying and scoring them; however, TLS-related gene expression has also been explored. The protocols described are detailed to allow the user to quantify TLS-related gene expression on formalin-fixed paraffin-embedded human breast tumor tissues.