Dataset Information

Immune State Conversion of the Mesenteric Lymph Node in a Mouse Breast Cancer Model.

ABSTRACT: Secondary lymphoid tissues, such as the spleen and lymph nodes (LNs), contribute to breast cancer development and metastasis in both anti- and pro-tumoral directions. Although secondary lymphoid tissues have been extensively studied, very little is known about the immune conversion in mesenteric LNs (mLNs) during breast cancer development. Here, we demonstrate inflammatory immune conversion of mLNs in a metastatic 4T1 breast cancer model. Splenic T cells were significantly decreased and continuously suppressed IFN-γ production during tumor development, while myeloid-derived suppressor cells (MDSCs) were dramatically enriched. However, T cell numbers in the mLN did not decrease, and the MDSCs only moderately increased. T cells in the mLN exhibited conversion from a pro-inflammatory state with high IFN-γ expression to an anti-inflammatory state with high expression of IL-4 and IL-10 in early- to late-stages of breast cancer development. Interestingly, increased migration of CD103⁺CD11b⁺ dendritic cells (DCs) into the mLN, along with increased (1→3)-β-D-glucan levels in serum, was observed even in late-stage breast cancer. This suggests that CD103⁺CD11b⁺ DCs could prime cancer-reactive T cells. Together, the data indicate that the mLN is an important lymphoid tissue contributing to breast cancer development.

SUBMITTER: Shigehiro T

PROVIDER: S-EPMC9570492 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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Immune State Conversion of the Mesenteric Lymph Node in a Mouse Breast Cancer Model.

Shigehiro Tsukasa T Ueno Maho M Kijihira Mayumi M Takahashi Ryotaro R Umemura Chiho C Taha Eman A EA Kurosaka Chisaki C Asayama Megumi M Murakami Hiroshi H Satoh Ayano A Nakamura Yoshimasa Y Futami Junichiro J Masuda Junko J

International journal of molecular sciences 20220920 19

Secondary lymphoid tissues, such as the spleen and lymph nodes (LNs), contribute to breast cancer development and metastasis in both anti- and pro-tumoral directions. Although secondary lymphoid tissues have been extensively studied, very little is known about the immune conversion in mesenteric LNs (mLNs) during breast cancer development. Here, we demonstrate inflammatory immune conversion of mLNs in a metastatic 4T1 breast cancer model. Splenic T cells were significantly decreased and continuo ...[more]

PMID: 36232335

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Dataset Information

Immune State Conversion of the Mesenteric Lymph Node in a Mouse Breast Cancer Model.

Publications

Immune State Conversion of the Mesenteric Lymph Node in a Mouse Breast Cancer Model.

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