Senior Lecturer in Genomics
My main research interests are in the field of cancer epigenetics, predominantly in relation to the development and progression of chronic lymphocytic leukaemia.
I also have an interest in the effects of environmental exposures upon the epigenome, such as the effects of particulate matter air pollution, which I will be pursuing through collaborative work with Project ELEFANT.
Teaching and supervision
I lecture on topics related to genetics, epigenetics and cancer, mainly for BSc (Hons) Biomedical Science.
Human Genetics and Genomics
Molecular and Cellular Analysis
Molecular and Cellular Biology
Clinical and Professional Practice
Clinical and Professional Practice for Healthcare Science
Research and Analytical Skills for Biosciences
Haematology and Transfusion Science
Biosciences Literature Review
Bioscience Research Investigation
Research interests for potential research students
My postdoctoral work at Universitatsklinikum Freiburg (Germany) and Brigham and Women's Hospital (Boston, MA) focussed upon epigenetic changes in solid tumours, such as loss of genomic imprinting in breast cancer (Int J Cancer 137(3): 537-47) and smoking-associated hypermethylation of the APC tumour suppressor gene in colorectal cancer (J Pathol 243(3): 366-75).
At the Northern Institute for Cancer Research (Newcastle University, UK) I developed an interest in the chronic lymphocytic leukaemia (CLL) epigenome. My work has focused on epigenetic changes during disease progression that modulate drug sensitivity, and analysis of retrotransposon (LINE-1 and Alu) methylation.
I also have an interest in epigenetic changes in response to environmental exposures, especially with regard to how these are implicated in carcinogenesis. My collaborative work has included examining the impact of morphine exposure on nuclear and mitochondrial DNA methylation in different regions of the rat brain (Epigenetics 12(12): 1038-47) and demonstrating, for the first time, that exposure to carcinogenic compounds and endocrine disruptors can modify RNA m6A methylation (Environ Res 175: 228-34).
Cayir, Akin, Barrow, Timothy, Guo, Liqiong and Byun, Hyang-Min (2019) Exposure to environmental toxicants reduces global N6-methyladenosine RNA methylation and alters expression of RNA methylation modulator genes. Environmental Research, 175. pp. 228-234. ISSN 0013-9351
Barrow, Timothy, Peng, Cheng, Wilson, Ander, Wang, Hao, Liu, Hongbin, Shen, Lilin, Tang, Nai-jun, Sae-Lee, Chanachai, Li, Peng-hui, Guo, Liqiong and Byun, Hyang-Min (2019) Psychosocial stress is associated with benign breast disease in young Chinese women: results from Project ELEFANT. Breast Cancer Research and Treatment, 173 (1). pp. 217-224. ISSN 1573-7217
Sae-Lee, Chanachai, Corsi, Sarah, Barrow, Timothy, Kunhle, Gunter, Bollati, Valentina, Mathers, John and Byun, Hyang-Min (2018) Dietary intervention modifies DNA methylation age assessed by the epigenetic clock. Molecular Nutrition & Food Research. ISSN 1613-4133 (Electronic)
Barrow, Timothy, Byun, HM, Li, X, Smart, C, Wang, YX, Zhang, Y, Baccarelli, A and Guo, L (2018) The effect of morphine upon DNA methylation in ten regions of the rat brain. Epigenetics, 12 (12). pp. 1038-1047. ISSN 1559-2294
Barrow, Timothy, Klett, H, Toth, R, Boehm, J, Gigic, B, Habermann, N, Scherer, D, Schrotz-King, P, Skender, S, Abbenhardt-Martin, C, Zielske, L, Schneider, M, Ulrich, A, Schirmacher, P, Herpel, E, Brenner, H, Busch, H, Boerries, M, Ulrich, CM and Michels, KB (2017) Smoking is Associated with Hypermethylation of the APC 1A Promoter in Colorectal Cancer: the ColoCare Study. Journal of Pathology, 243 (3). pp. 366-375. ISSN 0022-3417
Guo, Liqiong, Li, Peng-hui, Li, Hua, Colicino, Elena, Colicino, Silvia, Wen, Yi, Zhang, Ruiping, Feng, Xiaotian, Barrow, Timothy, Cayir, Akin, Baccarelli, Andrea A and Byun, Hyang-Min (2017) Effects of environmental noise exposure on DNA methylation in the brain and metabolic health. Environmental Research, 153. pp. 73-82.
Barrow, Timothy, Woodhouse, Laura, Junge, Gesa, Tudhope, Susan, Behardien, Charlotte, Wallis, Jonathan, Marr, Helen, Marshall, Scott, Bown, Nick, Willmore, Elaine and Strathdee, Gordon (2016) The Role of HOXA4 in Chronic Lymphocytic Leukaemia Progression and Response to Therapy. Blood, 128. p. 3924. ISSN 0006-4971
Barrow, Timothy, Barault, L, Ellsworth, RE, Harris, HR, Binder, AM, Valente, AL, Shriver, CD and Michels, KB (2015) Aberrant methylation of imprinted genes is associated with negative hormone receptor status in invasive breast cancer. International Journal of Cancer, 137 (3). pp. 537-547. ISSN 0020-7136
Barrow, Timothy and Byun, Hyang-Min (2014) Single nucleotide polymorphisms on DNA methylation microarrays: precautions against confounding. Epigenomics, 6 (6). pp. 577-579. ISSN 1750-1911
Barrow, Timothy and Michels, Karin B (2014) Epigenetic Epidemiology of Cancer. Biochemical and Biophysical Research Communications, 455 (1-2). pp. 70-83.
Joosen, Annemiek, Kuhnle, Gunter, Aspinall, Sue, Barrow, Timothy, Lecommandeur, Emmanuelle, Azqueta, Amaya, Collins, Andrew and Bingham, Sheila (2009) Effect of processed and red meat on endogenous nitrosation and DNA damage. Carcinogenesis, 30 (8). pp. 1402-1407. ISSN 0143-3334
Barrow, Timothy (2017) Epigenetic epidemiology of cancer risk. In: Epigenetic Mechanisms in Cancer. Elsevier. ISBN 978-0-12-809552-2
Byun, Hyang-Min and Barrow, Timothy (2015) Analysis of pollutant-induced changes in mitochondrial DNA methylation. In: Mitochondrial Medicine: Volume 2 - Manipulating Mitochondrial Function. Methods in Molecular Biology . Humana Press, pp. 271-283. ISBN 978-1-4939-2288-8
Conference or Workshop Item
Barrow, Timothy, Wong Doo, Nicole, Milne, Roger, Giles, Graham, Willmore, Elaine, Strathdee, Gordon and Byun, Hyang-Min (2018) Analysis of Locus-specific LINE-1 and Alu Element DNA Methylation Reveals Novel Early Epigenetic Changes in Chronic Lymphocytic Leukaemia. In: 23rd Congress of the European Hematology Association, 14-17 Jun 2018, Stockholm, Sweden.
- Cancer epigenetics
- Epigenetic epidemiology
- Chronic lymphocytic leukaemia
- Pyrosequencing for analysis of DNA methylation, SNPs, and allele-specific expression
- Illumina Infinium methylation microarrays (450K/EPIC)