AI Phenotypic Profiling for Hit Prioritization

From cell imaging to better hit prioritization

Turning complex phenotypic data into actionable discovery decisions

Phenotypic screening can generate rich biological signals, but large imaging datasets and unclear mechanisms can make those signals difficult to translate into compound decisions.

Ardigen built an end-to-end workflow combining cell imaging, multi-omics, data infrastructure and AI modeling to improve bioactivity prediction, enable phenotypic-based virtual screening and support confident hit identification and prioritization for downstream lead validation.

Challenge

Phenotypic signals were difficult to turn into decisions

The project addressed three connected challenges:

  • Hits without a mechanism, contributing to slow SAR cycles.
  • Phenotypic signals that were difficult to translate into decisions.
  • Imaging data too large to process at discovery speed.

At the same time, the broader workflow needed to handle large-volume data, support harmonization across datasets and make imaging and multimodal information accessible for analysis.

The goal was to move from large and complex phenotypic datasets toward more reliable bioactivity predictions and better-informed hit prioritization.

Approach

An end-to-end phenotypic data journey

Ardigen created a workflow spanning data sourcing, scalable infrastructure, data curation, exploratory analysis and AI modeling through to automated discovery insights.

1. Build a scalable foundation for imaging data

The workflow incorporated:

  • optimized cloud or on-premise storage
  • secure and scalable infrastructure
  • GPU-accelerated processing
  • elastic compute and auto-scaling
  • automatic quality control

This enabled large imaging datasets to be processed more efficiently and prepared for downstream analysis.

2. Prepare an AI-ready phenotypic data product

Data curation included:

  • data anonymization
  • logging and auditability
  • cross-dataset harmonization
  • normalization
  • batch correction

The resulting AI-ready Phenotypic Data Product provided a structured foundation for subsequent exploration and modeling.

3. Enable multimodal data exploration

Researchers were provided with capabilities for:

  • multimodal data exploration
  • interactive image viewing
  • graphical user interface access
  • custom quality control
  • unsupervised clustering
  • anomaly detection

This also helped identify unexpected quality issues in multiple datasets before those issues propagated into downstream analysis.

4. Apply AI models to prediction and discovery

The modeling stage included:

  • custom AI models for modality representation and prediction
  • model retraining and versioning
  • high-quality predictions and visualizations
  • bioactivity prediction
  • virtual screening
  • hit identification
  • generative AI models

For small-molecule bioactivity prediction, the case study specifically states that HCS and structural data were used.

phenotypic profiling with Ardigen phenAID, data-to-decision journey

Results

To-the-point results

30% improvement in the number of high-quality predictions ROC AUC > 0.8

50% reduction in image storage and processing costs

100×+ faster analysis through GPU and custom optimizations

Unexpected quality issues detected across multiple datasets

2–6 months implementation timeline

The resulting workflow supported confident hit identification and prioritization for downstream lead validation.

From phenotypic data to a discovery decision

 

The project connected multiple stages that are often treated separately.

Source and organize the data
Proprietary client data and public datasets could be brought into a scalable environment.

Make imaging data AI-ready
Processing, quality control, harmonization and FAIRification prepared the data for analysis.

Explore phenotype and multimodal signals
Interactive tools, clustering and anomaly detection helped researchers inspect data and identify relevant patterns.

Model biological activity
Custom AI models supported representation learning, prediction and bioactivity analysis.

Prioritize the next step
The resulting insights supported virtual screening, hit identification and downstream lead validation.

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