Portrai Insights
Insights on data analysis, AI, and the platform we're building at Portrai.
Showing articles by Hongyoon Choi
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[Sid’s Data Journey - Part 3] Virtual Tissue Pharmacology: Bringing In Silico Drug Testing to a Patient Tissue
From target expression to tissue pharmacology: modeling how radiopharmaceuticals distribute, accumulate, and deliver dose across Sid’s tumor tissue.

[Sid’s Data Journey - Part 2] Beyond Expression: How to Evaluate Drug Targets
Why target expression alone is not enough. We compare coverage, heterogeneity, spatial distribution, and normal-tissue risk in Sid’s tumor.

[Sid’s Data Journey - Part 1] Single-Patient PortraiTARGET: Data-Driven Target Discovery for Personalized Drug Development
How one patient’s longitudinal single-cell and spatial data can be used to identify and prioritize therapeutic targets with PortraiTARGET.

Spatial Biology as a Patient-Centric Data OS for the AI Era
The Rise of Spatial Biology A Shift in How We View Biology Our approach to investigating biological phenomena and understanding disease has long begun with identifying changes at the cellular and…

Next-Generation AI in Biology & Medicine in the Age of AI
0. The Rise of Spatial Biology Our efforts to explore biological phenomena and understand disease have long focused on changes occurring at the cellular and molecular levels.

Generating Single Cells with Language Models
Portrai VGL- Core AI of World Model From Cell-as-Text to In Silico Spatial Biology Spatial biology and single cell omics have reached an interesting point.
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Portrai's Authors
Capturing and compounding Portrai's insights.
Daeseung Lee
CEO
Physician-scientist who left clinical practice to bring spatial biology into oncology drug discovery
Hongyoon Choi
CTO
Builds the algorithms that turn spatial transcriptomics into actionable target intelligence
Hyung-Jun Im
CSO
Nuclear medicine specialist linking imaging biomarkers to next-generation radiopharmaceuticals
Kwonjoong Na
CMO
Translates platform insights into IND-enabling decisions across oncology programs
Portrai
Official posts from the Portrai team, decoding disease with spatial intelligence