Selected Publications

Lineage plasticity in prostate  cancer depends on JAK/STAT inflammatory signaling
2022 Joseph Chan 2022 Joseph Chan

Lineage plasticity in prostate  cancer depends on JAK/STAT inflammatory signaling

Plasticity can be quantified at single-cell level to gain insight into underlying machinery. This strategy identified FGFR and JAK/STAT inflammation as a driver of plasticity in prostate cancer with combined FGFR and JAK inhibition reversing early stages of plasticity and restoring androgen sensitivity, but only prior to full neuroendocrine transformation.

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Signatures of plasticity, metastasis, and immunosuppression in an atlas of human small cell lung cancer.
2021 Joseph Chan 2021 Joseph Chan

Signatures of plasticity, metastasis, and immunosuppression in an atlas of human small cell lung cancer.

Our single-cell atlas of SCLC patient tumors identifies plasticity changes in the form of a mixed SCLC-A/N phenotype as well as discrete intratumoral switching between canonical subtypes. We found a recurrent, pro-metastatic PLCG2-high SCLC phenotype that predicts worse overall survival and is associated with a pro-fibrotic myeloid population that is enriched in SCLC vs lung adenocarcinoma.

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Multilineage plasticity in prostate cancer through expansion of stem–like luminal epithelial cells with elevated inflammatory signaling.
2021 Joseph Chan 2021 Joseph Chan

Multilineage plasticity in prostate cancer through expansion of stem–like luminal epithelial cells with elevated inflammatory signaling.

Our single-cell exploration of castrate-resistant prostate cancer (CRPC) in transgenic mice following RB1, TP53, and PTEN deletion identified multi-lineage infidelity through the switch from a stem-like luminal population to amphicrine, mesenchymal, and multiple neuroendocrine subtypes that show correspondence to neuroendocrine subtypes in small cell lung cancer.

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Topology of viral evolution
2013 Joseph Chan 2013 Joseph Chan

Topology of viral evolution

We developed a method based on algebraic topology to model horizontal evolution in viruses and any form of evolution not captured by standard phylogenetics. This method is one of the earliest applications of topological data analysis in the biological sciences.

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