The proposed award plan combines didactic training and hands-on research to supplement Dr. Fertig's postdoctoral experience in Johns Hopkins Oncology Biostatistics with biological proficiency, complementing her mathematical background. Moreover, this training will enable Dr. Fertig to pursue pertinent research questions and fruitful, multi- disciplinary collaborations in her future career as an independent computational oncologist. The primary focus of this proposal is the development of quantitative models of the biological processes underlying the development and maintenance of tumors Mentors Michael Ochs, PhD of Oncology Biostatistics, and Joseph Califano, MD of Head and Neck Research, at Johns Hopkins will foster Dr. Fertig's proposed training and hands-on research, including providing insight to statistical methods in computational biology and to the biology and clinical treatment of head and neck cancer respectively. Dr. Fertig will apply her experience in merging dynamic models with indirect measurements from Numerical Weather Prediction to inferring relevant biological processes from patient measurements. With the support of her mentors, she will develop algorithms that infer driver processes underlying malignancies in an individual patient's tumor. In the proposed techniques, Dr. Fertig will infer transcription factor activity in head and neck cancer downstream of the malignant processes by integrating gene expression measurements with epigenetic measurements, EGFR protein-protein interaction network structure, and therapeutic strategy. By merging these diverse data sources, this tool is hypothesized to have the statistical power to accurately represent the probability of activation of specific transcription factors resulting from the modeled processes in head and neck cancer, which will be further validated through targeted cell line experiments. Thus, this research will develop tools that, when migrated to the clinic, will assist clinicians in identifying the appropriate choice of targeted therapeutics to treat an individual's cancer.
Advanced head and neck tumors have a 50% cure rate in spite of combined treatment modalities. This project will merge biological structure with head and neck tumor measurements to pinpoint specific pathways that drive individual tumor development, and thus assess personalized treatment plans for that patient. Although applied to head and neck cancers, the developed tools will have broad clinical implications.
|Ozawa, Hiroyuki; Ranaweera, Ruchira S; Izumchenko, Evgeny et al. (2017) SMAD4 Loss Is Associated with Cetuximab Resistance and Induction of MAPK/JNK Activation in Head and Neck Cancer Cells. Clin Cancer Res 23:5162-5175|
|Gaykalova, Daria A; Zizkova, Veronika; Guo, Theresa et al. (2017) Integrative computational analysis of transcriptional and epigenetic alterations implicates DTX1 as a putative tumor suppressor gene in HNSCC. Oncotarget 8:15349-15363|
|Guo, Theresa; Sakai, Akihiro; Afsari, Bahman et al. (2017) A Novel Functional Splice Variant of AKT3 Defined by Analysis of Alternative Splice Expression in HPV-Positive Oropharyngeal Cancers. Cancer Res 77:5248-5258|
|Hill, Steven M; Heiser, Laura M; Cokelaer, Thomas et al. (2016) Inferring causal molecular networks: empirical assessment through a community-based effort. Nat Methods 13:310-8|
|Guo, Theresa; Gaykalova, Daria A; Considine, Michael et al. (2016) Characterization of functionally active gene fusions in human papillomavirus related oropharyngeal squamous cell carcinoma. Int J Cancer 139:373-82|
|Fertig, Elana J; Ozawa, Hiroyuki; Thakar, Manjusha et al. (2016) CoGAPS matrix factorization algorithm identifies transcriptional changes in AP-2alpha target genes in feedback from therapeutic inhibition of the EGFR network. Oncotarget 7:73845-73864|
|Fertig, Elana J; Lee, Esak; Pandey, Niranjan B et al. (2015) Analysis of gene expression of secreted factors associated with breast cancer metastases in breast cancer subtypes. Sci Rep 5:12133|
|Afsari, Bahman; Fertig, Elana J; Geman, Donald et al. (2015) switchBox: an R package for k-Top Scoring Pairs classifier development. Bioinformatics 31:273-4|
|Cheng, Haixia; Fertig, Elana J; Ozawa, Hiroyuki et al. (2015) Decreased SMAD4 expression is associated with induction of epithelial-to-mesenchymal transition and cetuximab resistance in head and neck squamous cell carcinoma. Cancer Biol Ther 16:1252-8|
|Afsari, Bahman; Geman, Donald; Fertig, Elana J (2014) Learning dysregulated pathways in cancers from differential variability analysis. Cancer Inform 13:61-7|
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