Research
Current Projects
Transcriptional Genomics
A bioinformatics framework that identifies tissue‐specific enhancers by integrating multi‐modal genomic data has been developed previously [Rao 2010]. There is interest to integrate other sources of information (like epigenomic and ChIP datasets) to improve the efficacy of enhancer prediction. We have also participated in the TCGA Glioma groups’ work [Brat 2015, Ceccarelli 2016] on identifying transcriptional regulators underlying gliomagenesis.
Image Informatics
In order to quantify the phenotypic aspects of disease and their relationships with outcome and their genetic context, we have developed methods for the analysis of histopathology [ Mousavi 2015, Vu 2016] and radiology [Yang 2015] images, focusing on tumor heterogeneity. One direction of our group is to develop image analysis tools to delineate tumor image features from radiology data and to develop predictive models to relate them along with underlying genomic measurements to outcomes in low grade gliomas. Further, we have also investigated methodologies to link tumor imaging, genetics and immune status in gliomas. More recently, my group has been studying the relationship between image-derived features, genetics and cognitive status in glioblastoma patients. Further, we have also developed methods for the analysis of multiparametric MR datasets in Radiation Oncology.
Heterogeneous Data Integration
Integrative decision making in the clinical domain involves the need for principled formalisms that can integrate pathology, imaging and genomic data sets to drive hypothesis generation and clinical action. We have focused on developing high throughput measurement pipelines from this diverse array of data sources and methods for their integration. Simultaneously, methods for visualization are also under investigation. A more recent interest of our group is to integrate genomics, imaging and (online) behavioral data from patient to assess their evolving response to treatment, in the context of learning healthcare platforms. This could also enable the development of hybrid diagnostics.
Informatics for Combinatorial Drug Screens
The availability of multimodal data sources (cell line genomics, drug assays) coupled with high throughput, high content imaging platforms have created the need for informatics frameworks to identify rational drug combinations capable of modulating disease-associated phenotype. In this context, we have worked with the Gulf Coast Consortium to create analysis platforms that jointly mine imaging and genomics data for combinatorial drug discovery.
Funding Sources
A.R., S.K., and M.O. were supported by CCSG Bioinformatics Shared Resource 5 P30 CA046592, a gift from Agilent Technologies, a Research Scholar Grant from the American Cancer Society (RSG-16-005-01), and a Precision health Investigator award from U-M Precision Health to A.R. along with L.Rozek and M.Sartor.
A.R., S.K., and M.O. were partially supported by the NCI Grant R37-CA214955.
A.R., S.K., and M.O. were also partially supported by The University of Michigan (U-M) startup institutional research funds.
M.O. was supported by the Advanced Proteome Informatics of Cancer Training Grant (T32 CA140044).
S.M. was partially supported by the Precision Health Scholars Award from U-M Precision Health.