Genetically Engineered and Implantable Mouse Brain Tumor Models: Characterization by Immunohistochemistry and Flow Cytometry.

Gliomas are aggressive tumors with a poor prognosis. The protocols presented here outline the methods used to study tumor progression, the tumor microenvironment (TME), and the effects of experimental treatments. The Sleeping Beauty (SB) transposase system induces tumors de novo to generate mouse models that recapitulate human gliomas.

CD200 depletion in glioma enhances antitumor immunity and induces tumor rejection.

Unlabelled: High-grade gliomas are a major health challenge with poor prognosis and high morbidity. Immune-checkpoint inhibitors (ICI) have emerged as promising therapeutic options for several malignancies yet show little efficacy against central nervous system (CNS) tumors. CD200 is a newly recognized immune checkpoint that modulates immune homeostasis.

Flotillin-1 palmitoylation is essential for its stability and subsequent tumor promoting capabilities.

Flotillin-1 contributes to invasion and metastasis in triple negative breast cancer (TNBC) and is modified post-translationally through palmitoylation. Palmitoylation, the process of conjugating palmitoyl-CoA to proteins, plays an essential role in protein stability and trafficking. Thus far, there has not been any investigation into the role of flotillin-1 palmitoylation in the context of metastasis in vivo.

Miniaturized microarray-format digital ELISA enabled by lithographic protein patterning.

The search for reliable protein biomarker candidates is critical for early disease detection and treatment. However, current immunoassay technologies are failing to meet increasing demands for sensitivity and multiplexing. Here, the authors have created a highly sensitive protein microarray using the principle of single-molecule counting for signal amplification, capable of simultaneously detecting a panel of cancer biomarkers at sub-pg/mL levels.