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Large molecular systems landscape uncovers T cell trapping in human skin cancer.

ABSTRACT: Immune surveillance of tumour cells is an important function of CD8 T lymphocytes, which has failed in cancer for reasons still unknown in many respect but mainly related to cellular processes in the tumour microenvironment. Applying imaging cycler microscopy to analyse the immune contexture in a human skin cancer we could identify and map 7,000 distinct cell surface-associated multi-protein assemblies. The resulting combinatorial geometry-based high-functional resolution led to discovery of a mechanism of T cell trapping in the epidermis, which involves SPIKE, a network of suprabasal keratinocyte projections piercing and interconnecting CD8 T cells. It appears initiated by clusters of infrabasal T and dendritic cells connected via cell projections across a fractured basal lamina to suprabasal keratinocytes and T lymphocytes.

SUBMITTER: Hillert R

PROVIDER: S-EPMC4725819 | biostudies-other | 2016 Jan

REPOSITORIES: biostudies-other

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Large molecular systems landscape uncovers T cell trapping in human skin cancer.

Hillert Reyk R Gieseler Anne A Krusche Andreas A Humme Daniel D Röwert-Huber Hans-Joachim HJ Sterry Wolfram W Walden Peter P Schubert Walter W

Scientific reports 20160113

Immune surveillance of tumour cells is an important function of CD8 T lymphocytes, which has failed in cancer for reasons still unknown in many respect but mainly related to cellular processes in the tumour microenvironment. Applying imaging cycler microscopy to analyse the immune contexture in a human skin cancer we could identify and map 7,000 distinct cell surface-associated multi-protein assemblies. The resulting combinatorial geometry-based high-functional resolution led to discovery of a m ...[more]

PMID: 26757895

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