To capture the genome in 4D, we are improving on existing genomics techniques (Hi-C, RNA-seq), including in the realm of single cell analysis, and are developing new experimental and analytic techniques in imaging (e.g. oligo-DNA and RNA FISH). Coupling these techniques with mathematical analysis reveals natural genome dynamics and biological rhythms, including across the cell cycle and enables building data-guided algorithms that improve and generate new methods for cellular reprogramming. Our long-term goal is to understand the controllability of the 4D genome, and develop strategies for direct reprogramming of normal and abnormal cells into desired targets.
Robust AI Guided by the Immune System
We will use immune system architecture as a basis for generating novel machine learning algorithms. The immune system quickly adapts to a new threat with multi-threaded exploration/testing, selectively rewarding better threads for a threat-specific solution and efficiently coded memory. Advantages of immune system architecture:
- Able to find solutions to novel problems, mounting a defense while it learns
- Uses a highly evolved memory management system to avoid adversarial inputs
- Provides timely solutions, carefully balancing randomized exploration with a survival of the fittest strategy.
Direct Cellular Reprogramming Algorithm
We have developed an algorithm for the prediction of transcription factors necessary for direct cellular reprogramming - from any cell to any cell. This algorithm uses time series genomic data, both architecture and function, and control theory to determine the optimal inputs for controlling cell fate.
Simultaneous DNA and RNA oligo-FISH
DNA and RNA FISH imaging of CCNY during cell cycle progression.
Dynamic Genome Imaging
We have developed an objective algorithm for high-throughput, time-series FISH imaging, with canonical framework detection for gene positioning.
Single Cell Hi-C
Heat plots of single cell Hi-C maps from different cells (left 3) and a bulk Hi-C map (right). Green arrows in the Cell 1 and Bulk maps indicate chromosomal abnormalities seen in this cancer cell line.