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Evaluation of MCT1s role in chromatin remodelling and metabolomics changes involved in cancer progression


   Faculty of Biology, Medicine and Health


About the Project

Monocarboxylate transporter 1 (MCT1) is a transmembrane protein involved in cell metabolism and mediates transport of monocarboxylates (such as pyruvate {a metabolic substrate} and lactate {a metabolic by product}) in and out of the cell. Increased plasma membrane (PM) expression of MCT1 has been reported in several cancer types including endometrial cancer (EC) and is associated with reduced patient survival. Although nucleus is not a usual location for MCTs (based on current knowledge on their function), we and others reported nuclear MCT1 (nMCT1) expression in endometrial [2] and soft sarcoma [3] biopsies. Both studies showed that patients with nMCT1 survive longer than the patients without it. Further, a number of studies showed that metabolic proteins found in the nucleus can regulate transcription and chromatin remodelling by acting as co-factors or by providing the substrates (such as lactate, acetyl-coA) for these processes (reviewed in [4, 5]). Interestingly, we also found that when in nucleus, MCT1 interacts with other proteins that modify chromatin remodelling and regulate gene expression. Therefore, understanding nMCT1’s novel role in nucleus is vital to identify and exploit novel approaches in cancer treatment to enhance life-expectancy amongst patients. This project aims to identify nMCT1s role in relation to potential chromatin remodelling and/or metabolomic changes involved in cancer progression and patient survival. For this purpose, we will first combine CRISPR-Cas9 technology with molecular cloning to engineer cancer cell lines (Ishikawa and HEC1A) with MCT1 protein targeted specifically to the nucleus (nMCT1) or plasma membrane (PM MCT1). We will then subject these cell lines to a number of in vitro methods (e.g. immunofluorescence, western blotting, electron microscopy) to characterise subcellular localisation and expression levels in engineered cell lines. Metabolic profile of the engineered cell lines with nMCT1 wand PM MCT1 will be performed using mass spectroscopy and data analysis will be performed using R package. Changes in chromatin remodelling will be assessed using ATAC-sequencing. Results of metabolomics and chromatin remodelling will be compared and correlated to evaluate correlation between MCT1 subcellular localisation, changes in metabolism and chromatin structure by using R or any other relevant bioinformatics tools. By the end of this interdisciplinary project, the selected student will be equipped in sought after wet lab and bioinformatics skills for post-doctoral positions.

Entry Requirements

Candidates are expected to hold (or be about to obtain) a minimum upper second class honours degree (or equivalent) in a related area/subject. Candidates with a master’s degree in a related area/subject, and experience in molecular biology and/or gene editing (CRISPR) are encouraged to apply.

How To Apply

For information on how to apply for this project, please visit the Faculty of Biology, Medicine and Health Doctoral Academy website (https://www.bmh.manchester.ac.uk/study/research/apply/). Informal enquiries may be made directly to the primary supervisor. On the online application form select the appropriate subject title.

For international students, we also offer a unique 4 year PhD programme that gives you the opportunity to undertake an accredited Teaching Certificate whilst carrying out an independent research project across a range of biological, medical and health sciences.

Equality, Diversity and Inclusion

Equality, diversity and inclusion is fundamental to the success of The University of Manchester, and is at the heart of all of our activities. The full Equality, diversity and inclusion statement can be found on the website https://www.bmh.manchester.ac.uk/study/research/apply/equality-diversity-inclusion/”


Funding Notes

Applications are invited from self-funded students. This project has a Band 2 fee. Details of our different fee bands can be found on our website (View Website).

References

1. Pinherio et al., 2010. Monocarboxylate transporter 1 is up-regulated in basal-like breast carcinoma. Histopathology. 2010;56:860–7.
2. deOliveira et al., 2012. Co-expression of monocarboxylate transporter 1 (MCT1) and its chaperone (CD147) is associated with low survival in patients with gastrointestinal stromal tumors (GISTs). J Bioenerg Biomembr. 2012;44:171–8.
3. Eilertsen et al., 2014. Monocarboxylate transporters 1-4 in NSCLC: MCT1 is an independent prognostic marker for survival. PLoS One. 2014;9:e105038.
4. Latif et al., 2017. Monocarboxylate Transporter 1 (MCT1) is an independent prognostic biomarker in endometrial cancer. BMC Clinical Pathology (2017) 17:27
5. Pinherio et al., 2014. Characterization of monocarboxylate transporters (MCTs) expression in soft tissue sarcomas: distinct prognostic impact of MCT1 subcellular localization. J Transl Med. 2014;12:118.

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