Stefan Bekiranov
- Phone: 924-1667
- Fax: 434-924-5069
Primary Appointment
Associate Professor, Biochemistry and Molecular Genetics
Education
- BS, Microwave Engineering, University of California, Los Angeles
- PhD, Statistical Physics, University of California, Santa Barbara
- Postdoc, Statistical Physics, University of Maryland
- Postdoc, Computational Biology, The Rockefeller University
Research Disciplines
Bioinformatics and Genomics, Biophysics, Biophysics & Structural Biology, Cancer Biology, Computational Biology, Epigenetics, Molecular Biology, Translational Science
Research Interests
Computational Biology; Bioinformatics; Precision Medicine; Machine Learning/AI; Quantum Computing
Research Description
We are interested in characterizing the complex epigenetic regulatory network of histone modifications and DNA methylation, which exhibits extensive cross-talk. We apply machine-learning methods including Multivariate Regression Splines (MARS) and Bayesian Networks (BN) to epigenomic data in order to uncover this network and understand how it regulates transcription and DNA replication. We analyze both publicly available data sets (e.g., epigenomic data generated by K. Zhao's lab and the ENCODE, modENCODE and Epigenomics Mapping Consortia) as well as data generated by colleagues here at UVa. In our collaborations, we are studying (1) preinitiation complex (PIC) and transcription factor dynamics and their role in regulation of transcription level and precision (2) epigenomic regulation of the epithelial to mesenchymal transition -- a model of how cells are reprogrammed during metastasis (3) origins of DNA replication in the human genome and the epigenetic factors that drive them (4) the role of histone deacetylaces including Sir2 in aging and (5) the impact of chemicals in our environment (e.g., Bisphenol A) on our epigenome and subsequent phenotypic outcomes. An exciting aspect of the collaborative environment at UVa is that we are able to experimentally test our predicted epigenetic regulatory network models at the biochemical and phenotypic level.
Personal Statement
   Â
We are interested in characterizing the complex epigenetic regulatory network of histone modifications and DNA methylation, which exhibits extensive cross-talk. Â We apply machine-learning methods including Multivariate Regression Splines (MARS) and Bayesian Networks (BN) to epigenomic data in order to uncover this network and understand how it regulates transcription and DNA replication. Â We analyze both publicly available data sets (e.g., epigenomic data generated by K. Zhaoâs lab and the ENCODE, modENCODE and Epigenomics Mapping Consortia) as well as data generated by colleagues here at UVa. Â In our collaborations, we are studying (1) preinitiation complex (PIC) and transcription factor dynamics and their role in regulation of transcription level and precision (2) epigenomic regulation of the epithelial to mesenchymal transitionâa model of how cells are reprogrammed during metastasis (3) origins of DNA replication in the human genome and the epigenetic factors that drive them (4) the role of histone deacetylaces including Sir2 in aging and (5) the impact of chemicals in our environment (e.g., Bisphenol A) on our epigenome and subsequent phenotypic outcomes. Â An exciting aspect of the collaborative environment at UVa is that we are able to experimentally test our predicted epigenetic regulatory network models at the biochemical and phenotypic level.
Training
- Training in Cell and Molecular Biology
- Training in Molecular Biophysics
Selected Publications
2024
Shamsuzzaman, S., Deaton, R. A., Salamon, A., Doviak, H., Serbulea, V., Milosek, V. M., . . . Owens, G. K. (2024). Novel Mouse Model of Myocardial Infarction, Plaque Rupture, and Stroke Shows Improved Survival With Myeloperoxidase Inhibition.. Circulation. doi:10.1161/circulationaha.123.067931
Cho, H. J., Wang, Z., Cong, Y., Bekiranov, S., Zhang, A., & Zang, C. (2024). DARDN: A Deep-Learning Approach for CTCF Binding Sequence Classification and Oncogenic Regulatory Feature Discovery. GENES, 15(2). doi:10.3390/genes15020144
2022
Kim, J., & Bekiranov, S. (2022). Generalization Performance of Quantum Metric Learning Classifiers. BIOMOLECULES, 12(11). doi:10.3390/biom12111576
Young, A., Bradley, L. A., Farrar, E., Bilcheck, H. O., Tkachenko, S., Saucerman, J. J., . . . Wolf, M. J. (2022). Inhibition of DYRK1a Enhances Cardiomyocyte Cycling After Myocardial Infarction. CIRCULATION RESEARCH, 130(9), 1345-1361. doi:10.1161/CIRCRESAHA.121.320005
2021
Kwak, M., Erdag, G., Leick, K. M., Bekiranov, S., Engelhard, V. H., & Slingluff, C. L. (2021). Associations of immune cell homing gene signatures and infiltrates of lymphocyte subsets in human melanomas: discordance with CD163+ myeloid cell infiltrates. JOURNAL OF TRANSLATIONAL MEDICINE, 19(1). doi:10.1186/s12967-021-03044-5
Lehman, C. E., Spencer, A., Hall, S., Shaw, J. J. P., Wulfkuhle, J., Petricoin, E. F., . . . Gioeli, D. (2021). IGF1R and Src inhibition induce synergistic cytotoxicity in HNSCC through inhibition of FAK. SCIENTIFIC REPORTS, 11(1). doi:10.1038/s41598-021-90289-1
Rapaport, F., Neelamraju, Y., Baslan, T., Hassane, D., Gruszczynska, A., Robert de Massy, M., . . . Garrett-Bakelman, F. E. (2021). Genomic and evolutionary portraits of disease relapse in acute myeloid leukemia. LEUKEMIA, 35(9), 2688-2692. doi:10.1038/s41375-021-01153-0
Emani, P. S., Warrell, J., Anticevic, A., Bekiranov, S., Gandal, M., McConnell, M. J., . . . Harrow, A. W. (2021). Quantum computing at the frontiers of biological sciences. NATURE METHODS, 18(7), 701-709. doi:10.1038/s41592-020-01004-3
2020
Pattarabanjird, T., Cress, C., Nguyen, A., Taylor, A., Bekiranov, S., & McNamara, C. (2020). A Machine Learning Model Utilizing a Novel SNP Shows Enhanced Prediction of Coronary Artery Disease Severity. GENES, 11(12). doi:10.3390/genes11121446
Lawson, J. T., Smith, J. P., Bekiranov, S., Garrett-Bakelman, F. E., & Sheffield, N. C. (2020). COCOA: coordinate covariation analysis of epigenetic heterogeneity. GENOME BIOLOGY, 21(1). doi:10.1186/s13059-020-02139-4
Alencar, G. F., Owsiany, K. M., Karnewar, S., Sukhavasi, K., Mocci, G., Nguyen, A. T., . . . Owens, G. K. (2020). Stem Cell Pluripotency Genes Klf4 and Oct4 Regulate Complex SMC Phenotypic Changes Critical in Late-Stage Atherosclerotic Lesion Pathogenesis. CIRCULATION, 142(21), 2045-2059. doi:10.1161/CIRCULATIONAHA.120.046672
Grabski, D. F., Ratan, A., Gray, L. R., Bekiranov, S., Rekosh, D., Hammarskjold, M. -L., & Rasmussen, S. K. (2021). Upregulation of human endogenous retrovirus-K (HML-2) mRNAs in hepatoblastoma: Identification of potential new immunotherapeutic targets and biomarkers. JOURNAL OF PEDIATRIC SURGERY, 56(2), 286-292. doi:10.1016/j.jpedsurg.2020.05.022
Singh, S., Szlachta, K., Manukyan, A., Raimer, H. M., Dinda, M., Bekiranov, S., & Wang, Y. -H. (2020). Pausing sites of RNA polymerase II on actively transcribed genes are enriched in DNA double-stranded breaks. JOURNAL OF BIOLOGICAL CHEMISTRY, 295(12), 3990-4000. doi:10.1074/jbc.RA119.011665
Kathuria, K., Ratan, A., McConnell, M., & Bekiranov, S. (2020). Implementation of a Hamming distance-like genomic quantum classifier using inner products on ibmqx2 and ibmq_16_melbourne. QUANTUM MACHINE INTELLIGENCE, 2(1). doi:10.1007/s42484-020-00017-7
2019
Gray, L. R., Jackson, R. E., Jackson, P. E. H., Bekiranov, S., Rekosh, D., & Hammarskjold, M. -L. (2019). HIV-1 Rev interacts with HERV-K RcREs present in the human genome and promotes export of unspliced HERV-K proviral RNA. RETROVIROLOGY, 16(1). doi:10.1186/s12977-019-0505-y
Lehman, C. E., Khalil, A. A., Axelrod, M. J., Dougherty, M. I., Schoeff, S. S., Taniguchi, L. E., . . . Jameson, M. J. (2020). Antitumor effect of insulin-like growth factor-1 receptor inhibition in head and neck squamous cell carcinoma. LARYNGOSCOPE, 130(6), 1470-1478. doi:10.1002/lary.28236
Li, M., Fine, R. D., Dinda, M., Bekiranov, S., & Smith, J. S. (2019). A Sir2-regulated locus control region in the recombination enhancer of Saccharomyces cerevisiae specifies chromosome III structure. PLOS GENETICS, 15(8). doi:10.1371/journal.pgen.1008339
Szymura, S. J., Zaemes, J. P., Allison, D. F., Clift, S. H., D'Innocenzi, J. M., Gray, L. G., . . . Mayo, M. W. (2019). NF-κB upregulates glutamine-fructose-6-phosphate transaminase 2 to promote migration in non-small cell lung cancer. CELL COMMUNICATION AND SIGNALING, 17. doi:10.1186/s12964-019-0335-5
Chronister, W. D., Burbulis, I. E., Wierman, M. B., Wolpert, M. J., Haakenson, M. F., Smith, A. C. B., . . . McConnell, M. J. (2019). Neurons with Complex Karyotypes Are Rare in Aged Human Neocortex. CELL REPORTS, 26(4), 825-+. doi:10.1016/j.celrep.2018.12.107
Leick, K. M., Obeid, J. M., Bekiranov, S., & Slingluff, C. L. J. (2019). Systems analysis of barrier molecule and ARNT-related gene expression regulation in melanoma. ONCOIMMUNOLOGY, 8(12). doi:10.1080/2162402X.2019.1665978
2018
Woo, L. A., Tkachenko, S., Ding, M., Plowright, A. T., Engkvist, O., Andersson, H., . . . Saucerman, J. J. (2019). High-content phenotypic assay for proliferation of human iPSC-derived cardiomyocytes identifies L-type calcium channels as targets. JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY, 127, 204-214. doi:10.1016/j.yjmcc.2018.12.015
Uchiyama, R., Kupkova, K., Shetty, S. J., Linford, A. S., Pray-Grant, M. G., Wagar, L. E., . . . Auble, D. T. (2018). Histone H3 lysine 4 methylation signature associated with human undernutrition. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 115(48), E11264-E11273. doi:10.1073/pnas.1722125115
Szlachta, K., Thys, R. G., Atkin, N. D., Pierce, L. C. T., Bekiranov, S., & Wang, Y. -H. (2018). Alternative DNA secondary structure formation affects RNA polymerase II promoter-proximal pausing in human. GENOME BIOLOGY, 19. doi:10.1186/s13059-018-1463-8
Hoffman, E. A., Zaidi, H., Shetty, S. J., Bekiranov, S., & Auble, D. T. (2018). An Improved Method for Measuring Chromatin-binding Dynamics Using Time-dependent Formaldehyde Crosslinking. BIO-PROTOCOL, 8(4). doi:10.21769/BioProtoc.2905
2017
Zaidi, H., Hoffman, E. A., Shetty, S. J., Bekiranov, S., & Auble, D. T. (2017). Second-generation method for analysis of chromatin binding with formaldehyde-cross-linking kinetics. JOURNAL OF BIOLOGICAL CHEMISTRY, 292(47), 19338-19355. doi:10.1074/jbc.M117.796441
Jayappa, K. D., Portell, C. A., Gordon, V. L., Capaldo, B. J., Bekiranov, S., Axelrod, M. J., . . . Weber, M. J. (2017). Microenvironmental agonists generate de novo phenotypic resistance to combined ibrutinib plus venetoclax in CLL and MCL (vol 14, pg 933, 2017). BLOOD ADVANCES, 1(19), 1537. doi:10.1182/bloodadvances.2017011148
Jayappa, K. D., Portell, C. A., Gordon, V. L., Capaldo, B. J., Bekiranov, S., Axelrod, M. J., . . . Weber, M. J. (2017). Microenvironmental agonists generate de novo phenotypic resistance to combined ibrutinib plus venetoclax in CLL and MCL. BLOOD ADVANCES, 1(14), 933-946. doi:10.1182/bloodadvances.2016004176
Chen, X., Poorey, K., Carver, M. N., Mueller, U., Bekiranov, S., Auble, D. T., & Brow, D. A. (2017). Transcriptomes of six mutants in the Sen1 pathway reveal combinatorial control of transcription termination across the Saccharomyces cerevisiae genome. PLOS GENETICS, 13(6). doi:10.1371/journal.pgen.1006863
Zaidi, H. A., Auble, D. T., & Bekiranov, S. (2017). RNA synthesis is associated with multiple TBP-chromatin binding events. SCIENTIFIC REPORTS, 7. doi:10.1038/srep39631
2016
True, J. D., Muldoon, J. J., Carver, M. N., Poorey, K., Shetty, S. J., Bekiranov, S., & Auble, D. T. (2016). The Modifier of Transcription 1 (Mot1) ATPase and Spt16 Histone Chaperone Co-regulate Transcription through Preinitiation Complex Assembly and Nucleosome Organization.. The Journal of biological chemistry, 291(29), 15307-15319. doi:10.1074/jbc.m116.735134
Cherepanova, O. A., Gomez, D., Shankman, L. S., Swiatlowska, P., Williams, J., Sarmento, O. F., . . . Owens, G. K. (2016). Activation of the pluripotency factor OCT4 in smooth muscle cells is atheroprotective. NATURE MEDICINE, 22(6), 657-+. doi:10.1038/nm.4109
True, J. D., Muldoon, J. J., Carver, M. N., Poorey, K., Shetty, S. J., Bekiranov, S., & Auble, D. T. (2016). The Modifier of Transcription 1 (Mott) ATPase and Spt16 Histone Chaperone Co-regulate Transcription through Preinitiation Complex Assembly and Nucleosome Organization. JOURNAL OF BIOLOGICAL CHEMISTRY, 291(29), 15307-15319. doi:10.1074/jbc.M116.735134
2015
Roller, D. G., Capaldo, B., Bekiranov, S., Mackey, A. J., Conaway, M. R., Petricoin, E. F., . . . Weber, M. J. (2016). Combinatorial drug screening and molecular profiling reveal diverse mechanisms of intrinsic and adaptive resistance to BRAF inhibition in V600E BRAF mutant melanomas. ONCOTARGET, 7(3), 2734-2753. doi:10.18632/oncotarget.6548
Wierman, M. B., Matecic, M., Valsakumar, V., Li, M., Smith, D. L. J., Bekiranov, S., & Smith, J. S. (2015). Functional genomic analysis reveals overlapping and distinct features of chronologically long-lived yeast populations. AGING-US, 7(3), 177-194. doi:10.18632/aging.100729
Anaya, J., Reon, B., Chen, W. -M., Bekiranov, S., & Duna, A. (2016). A pan-cancer analysis of prognostic genesl. PEERJ, 4. doi:10.7717/peerj.1499
Cieslik, M., & Bekiranov, S. (2015). Genome-wide predictors of NF-κB recruitment and transcriptional activity. BIODATA MINING, 8. doi:10.1186/s13040-015-0071-3
Capaldo, B. J., Roller, D., Axelrod, M. J., Koeppel, A. F., Petricoin, E. F., Slingluff, C. L. J., . . . Bekiranov, S. (2015). Systems Analysis of Adaptive Responses to MAP Kinase Pathway Blockade in BRAF Mutant Melanoma. PLOS ONE, 10(9). doi:10.1371/journal.pone.0138210
2014
Wamsley, J. J., Kumar, M., Allison, D. F., Clift, S. H., Holzknecht, C. M., Szymura, S. J., . . . Mayo, M. W. (2015). Activin Upregulation by NF-κB Is Required to Maintain Mesenchymal Features of Cancer Stem-like Cells in Non-Small Cell Lung Cancer. CANCER RESEARCH, 75(2), 426-435. doi:10.1158/0008-5472.CAN-13-2702
Viswanathan, R., Hoffman, E. A., Shetty, S. J., Bekiranov, S., & Auble, D. T. (2014). Analysis of chromatin binding dynamics using the crosslinking kinetics (CLK) method. METHODS, 70(2-3), 97-107. doi:10.1016/j.ymeth.2014.10.029
Cieslik, M., & Bekiranov, S. (2014). Combinatorial epigenetic patterns as quantitative predictors of chromatin biology. BMC GENOMICS, 15. doi:10.1186/1471-2164-15-76
Cohen, J. N., Tewalt, E. F., Rouhani, S. J., Buonomo, E. L., Bruce, A. N., Xu, X., . . . Engelhard, V. H. (2014). Tolerogenic Properties of Lymphatic Endothelial Cells Are Controlled by the Lymph Node Microenvironment. PLOS ONE, 9(2). doi:10.1371/journal.pone.0087740
2013
Poorey, K., Viswanathan, R., Carver, M. N., Karpova, T. S., Cirimotich, S. M., McNally, J. G., . . . Auble, D. T. (2013). Measuring Chromatin Interaction Dynamics on the Second Time Scale at Single-Copy Genes. SCIENCE, 342(6156), 369-372. doi:10.1126/science.1242369
Cieslik, M., Hoang, S. A., Baranova, N., Chodaparambil, S., Kumar, M., Allison, D. F., . . . Bekiranov, S. (2013). Epigenetic coordination of signaling pathways during the epithelial-mesenchymal transition. EPIGENETICS & CHROMATIN, 6. doi:10.1186/1756-8935-6-28
Mesner, L. D., Valsakumar, V., Cieslik, M., Pickin, R., Hamlin, J. L., & Bekiranov, S. (2013). Bubble-seq analysis of the human genome reveals distinct chromatin-mediated mechanisms for regulating early- and late-firing origins. GENOME RESEARCH, 23(11), 1774-1788. doi:10.1101/gr.155218.113
Li, M., Valsakumar, V., Poorey, K., Bekiranov, S., & Smith, J. S. (2013). Genome-wide analysis of functional sirtuin chromatin targets in yeast. GENOME BIOLOGY, 14(5). doi:10.1186/gb-2013-14-5-r48
Wolstenholme, J. T., Rissman, E. F., & Bekiranov, S. (2013). Sexual differentiation in the developing mouse brain: contributions of sex chromosome genes. GENES BRAIN AND BEHAVIOR, 12(2), 166-180. doi:10.1111/gbb.12010
Kumar, M., Allison, D. F., Baranova, N. N., Wamsley, J. J., Katz, A. J., Bekiranov, S., . . . Mayo, M. W. (2013). NF-κB Regulates Mesenchymal Transition for the Induction of Non-Small Cell Lung Cancer Initiating Cells. PLOS ONE, 8(7). doi:10.1371/journal.pone.0068597
Hoang, S. A., & Bekiranov, S. (2013). The Network Architecture of the Saccharomyces cerevisiae Genome. PLOS ONE, 8(12). doi:10.1371/journal.pone.0081972
2012
McCullough, S. D., Xu, X., Dent, S. Y. R., Bekiranov, S., Roeder, R. G., & Grant, P. A. (2012). Reelin is a target of polyglutamine expanded ataxin-7 in human spinocerebellar ataxia type 7 (SCA7) astrocytes. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 109(52), 21319-21324. doi:10.1073/pnas.1218331110
Hoang, S., CieÅlik, M., Chodaparambil, S., Baranova, N., Kumar, M., Allison, D., . . . Bekiranov, S. (2012). Epigenetic reprogramming in the epithelial-to-mesenchymal transition. BMC Proceedings, 6(S6). doi:10.1186/1753-6561-6-s6-o28
2011
Hoang, S. A., Xu, X., & Bekiranov, S. (2011). Quantification of histone modification ChIP-seq enrichment for data mining and machine learning applications.. BMC research notes, 4, 288. doi:10.1186/1756-0500-4-288
Gioeli, D., Wunderlich, W., Sebolt-Leopold, J., Bekiranov, S., Wulfkuhle, J. D., Petricoin, E. F. I. I. I., . . . Weber, M. J. (2011). Compensatory Pathways Induced by MEK Inhibition Are Effective Drug Targets for Combination Therapy against Castration-Resistant Prostate Cancer. MOLECULAR CANCER THERAPEUTICS, 10(9), 1581-1590. doi:10.1158/1535-7163.MCT-10-1033
Hyland, E. M., Molina, H., Poorey, K., Jie, C., Xie, Z., Dai, J., . . . Boeke, J. D. (2011). An evolutionarily 'young' lysine residue in histone H3 attenuates transcriptional output in Saccharomyces cerevisiae. GENES & DEVELOPMENT, 25(12), 1306-1319. doi:10.1101/gad.2050311
Smith, S. C., Havaleshko, D. M., Moon, K., Baras, A. S., Lee, J., Bekiranov, S., . . . Theodorescu, D. (2011). Use of Yeast Chemigenomics and COXEN Informatics in Preclinical Evaluation of Anticancer Agents. NEOPLASIA, 13(1), 72-U101. doi:10.1593/neo.101214
2010
Mesner, L. D., Valsakumar, V., Karnani, N., Dutta, A., Hamlin, J. L., & Bekiranov, S. (2011). Bubble-chip analysis of human origin distributions demonstrates on a genomic scale significant clustering into zones and significant association with transcription. GENOME RESEARCH, 21(3), 377-389. doi:10.1101/gr.111328.110
Stolzenberg, D. S., Grant, P. A., & Bekiranov, S. (2011). Epigenetic methodologies for behavioral scientists. HORMONES AND BEHAVIOR, 59(3), 407-416. doi:10.1016/j.yhbeh.2010.10.007
Poorey, K., Sprouse, R. O., Wells, M. N., Viswanathan, R., Bekiranov, S., & Auble, D. T. (2010). RNA synthesis precision is regulated by preinitiation complex turnover. GENOME RESEARCH, 20(12), 1679-1688. doi:10.1101/gr.109504.110
Park, J. H., Bonthius, P. J., Tsai, H. -W., Bekiranov, S., & Rissman, E. F. (2010). Amyloid β Precursor Protein Regulates Male Sexual Behavior. JOURNAL OF NEUROSCIENCE, 30(30), 9967-9972. doi:10.1523/JNEUROSCI.1988-10.2010
Xu, X., Hoang, S., Mayo, M. W., & Bekiranov, S. (2010). Application of machine learning methods to histone methylation ChIP-Seq data reveals H4R3me2 globally represses gene expression. BMC BIOINFORMATICS, 11. doi:10.1186/1471-2105-11-396
Li, M., Petteys, B. J., McClure, J. M., Valsakumar, V., Bekiranov, S., Frank, E. L., & Smith, J. S. (2010). Thiamine Biosynthesis in Saccharomyces cerevisiae Is Regulated by the NAD+- Dependent Histone Deacetylase Hst1. MOLECULAR AND CELLULAR BIOLOGY, 30(13), 3329-3341. doi:10.1128/MCB.01590-09
Amos, P. J., Kapur, S. K., Stapor, P. C., Shang, H., Bekiranov, S., Khurgel, M., . . . Katz, A. J. (2010). Human Adipose-Derived Stromal Cells Accelerate Diabetic Wound Healing: Impact of Cell Formulation and Delivery. TISSUE ENGINEERING PART A, 16(5), 1595-1606. doi:10.1089/ten.tea.2009.0616
Matecic, M., Smith, D. L. J., Pan, X., Maqani, N., Bekiranov, S., Boeke, J. D., & Smith, J. S. (2010). A Microarray-Based Genetic Screen for Yeast Chronological Aging Factors. PLOS GENETICS, 6(4). doi:10.1371/journal.pgen.1000921