Junlong (Jack) Chi, Ph.D.

Postdoctoral Fellow (Visiting)

Cutaneous Development and Carcinogenesis Section

Summary

Jack Chi, Ph.D., is interested in mechanisms of tumor immune evasion and the development of new cancer therapies. He is currently investigating the molecular pathology of Merkel cell carcinoma and aims to identify novel therapeutic targets.

During his Master's and Ph.D. studies, Dr. Chi gained comprehensive research training in three key areas: molecular mechanisms of cancer progression, cancer immunology, and drug discovery and therapeutics. His work primarily focused on uncovering novel post-translational modifications (PTMs) that drive cancer progression and immune evasion, specifically through the modulation of protein stability, interactions, and localization.

In the realm of drug discovery, Dr. Chi developed a targeted PROTAC molecule to degrade a key cell cycle regulator and established a high-throughput screening assay to measure the compound's efficacy in blocking protein enzymatic functions. This multidisciplinary training has equipped him to integrate immunology, oncology, and biomedical engineering concepts, enabling a comprehensive approach to formulating relevant scientific questions and devising innovative solutions.

Additionally, his collaborative projects with experts from various disciplines have honed Dr. Chi's communication skills, which are essential for effective interdisciplinary teamwork.

Scientific Publications

Tuning Immune-Cold Tumor by Suppressing USP10/B7-H4 Proteolytic Axis Reinvigorates Therapeutic Efficacy of ADCs.

Zeng L, Zhu Y, Cui X, Chi J, Uddin A, Zhou Z, Song X, Dai M, Cristofanilli M, Kalinsky K, Wan Y
Adv Sci (Weinh).
2024 Oct;
11(40).
doi: 10.1002/advs.202400757
PMID: 39206932

Pharmacological suppression of the OTUD4/CD73 proteolytic axis revives antitumor immunity against immune-suppressive breast cancers.

Zhu Y, Banerjee A, Xie P, Ivanov AA, Uddin A, Jiao Q, Chi JJ, Zeng L, Lee JY, Xue Y, Lu X, Cristofanilli M, Gradishar WJ, Henry CJ, Gillespie TW, Bhave MA, Kalinsky K, Fu H, Bahar I, Zhang B, Wan Y
J Clin Invest.
2024 Mar 26;
134(10).
doi: 10.1172/JCI176390
PMID: 38530357

Proteolytic regulation of CD73 by TRIM21 orchestrates tumor immunogenicity.

Fu Z, Chen S, Zhu Y, Zhang D, Xie P, Jiao Q, Chi J, Xu S, Xue Y, Lu X, Song X, Cristofanilli M, Gradishar WJ, Kalinsky K, Yin Y, Zhang B, Wan Y
Sci Adv.
2023 Jan 6;
9(1).
doi: 10.1126/sciadv.add6626
PMID: 36608132

Regulation of KLF4 by posttranslational modification circuitry in endocrine resistance.

Zhou Z, Song X, Chi JJ, Gius DR, Huang Y, Cristofanilli M, Wan Y
Cell Signal.
2020 Jun;
70().
doi: 10.1016/j.cellsig.2020.109574
PMID: 32084531

A novel strategy to block mitotic progression for targeted therapy.

Chi JJ, Li H, Zhou Z, Izquierdo-Ferrer J, Xue Y, Wavelet CM, Schiltz GE, Zhang B, Cristofanilli M, Lu X, Bahar I, Wan Y
EBioMedicine.
2019 Nov;
49().
doi: 10.1016/j.ebiom.2019.10.013
PMID: 31669221

Education

Northwestern University 
Ph.D. in Chemical Biology and Pharmacology (2019-2024) 

Northwestern University
M.S. in Biomedical Engineering (2017-2019) 

Hong Kong Polytechnic University 
B.S. in Biomedical Engineering (2013-2017)

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