Tumor and local lymphoid tissue interaction determines prognosis in high-grade serous ovarian cancer

Cell Rep Med. 2023 Jul 18;4(7):101092. doi: 10.1016/j.xcrm.2023.101092. Epub 2023 Jun 21.

Abstract

Tertiary lymphoid structure (TLS) is associated with prognosis in copy-number-driven tumors, including high-grade serous ovarian cancer (HGSOC), although the function of TLS and its interaction with copy-number alterations in HGSOC are not fully understood. In the current study, we confirm that TLS-high HGSOC patients show significantly better progression-free survival (PFS). We show that the presence of TLS in HGSOC tumors is associated with B cell maturation and cytotoxic tumor-specific T cell activation and proliferation. In addition, the copy-number loss of IL15 and CXCL10 may limit TLS formation in HGSOC; a list of genes that may dysregulate TLS function is also proposed. Last, a radiomics-based signature is developed to predict the presence of TLS, which independently predicts PFS in both HGSOC patients and immune checkpoint inhibitor (ICI)-treated non-small cell lung cancer (NSCLC) patients. Overall, we reveal that TLS coordinates intratumoral B cell and T cell response to HGSOC tumor, while the cancer genome evolves to counteract TLS formation and function.

Keywords: CNA; ovarian cancer; radiomics; tertiary lymphoid structures.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carcinoma, Non-Small-Cell Lung*
  • Cystadenocarcinoma, Serous*
  • Female
  • Humans
  • Lung Neoplasms* / pathology
  • Lymphoid Tissue
  • Ovarian Neoplasms* / pathology
  • Prognosis