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  Association between mitigation of chemotherapy-induced adverse events and the oral microbiome.


   Faculty of Medicine and Health

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  Dr T Do  No more applications being accepted  Funded PhD Project (Students Worldwide)

About the Project

The side-effects and long-term sequelae of cancer chemotherapy (CT) remain a major source of concern for both patients & clinicians despite the improved efficacy and enhanced survival offered by modern treatments. Oncology patients undergoing chemotherapy are at risk of febrile (fever) episodes which commonly involve oral infections[1-2] and complications such as oral mucositis (OM). Pre-existing dental pathologies including periodontitis and caries[3] may contribute to higher abundance of pathogens and damaged mucosa, increasing the risk of oral pathogen translocation to other body sites[4].

Numerous studies report the influence of the gut microbiome on cancer therapy response and its crucial role in modulating cancer therapy toxicity5. Some microbial species may contribute to protection against cancer immunotherapy whereas others can enhance toxic effects[5]. The role of the oral microbiome on CT is less well characterised[6].

This project aims to characterise the oral microbiome of patients during their oncology treatment pathway and determine whether receiving intensive dental interventions prior to commencing chemotherapy can reduce incidence/severity of oral and or other body site infections.

The candidate will work as part of a multidisciplinary team who are evaluating oral health and systemic health interactions. They will investigate the oral microbiome of oncology patients to gain invaluable insights into the biological mechanism driving dysbiosis and leading to chemotherapy induced complications.

The project supports the School’s research strategy to understand the relationship between oral and systemic health combining basic sciences and clinical research (on microbiome analysis, bioinformatics, patient care), with interdisciplinary collaborations. High quality publications are expected (3*/4* REF rating).

Aims & Objectives:

Aim: To gain an understanding of the role of the oral microbiome in the infectious sequelae that can lead to life-threatening adverse events in cancer patients undergoing chemotherapy.

Objectives:

  • Complete the study’s ethical approval process and co-ordinate patient sampling, and sample processing.
  • Undertake metagenomic profiling: detailed taxonomy and functional capacity will be defined and provide insight into the role of oral microbes in the infectious sequelae of oncology patients.
  • Correlate bioinformatic and clinical data (including treatment outcomes): determine signals driving dysbiosis and potential modulation by oral and dental interventions.

The Faculty of Medicine and Health minimum requirements are:

  • British Council IELTS - score of 6.5 overall, with no element less than 6.0
  • TOEFL iBT - overall score of 92 with the listening and reading element no less than 21, writing element no less than 22 and the speaking element no less than 23.

How to apply:

To apply for this scholarship applicants should complete an online Faculty Scholarship Application form and send this alongside a full academic CV, degree transcripts (or marks so far if still studying) and degree certificates to the Faculty Graduate School [Email Address Removed]

We also require 2 academic references to support your application. Please ask your referees to complete the online Scholarship Reference form on your behalf and send directly to [Email Address Removed] by no later than Friday 09 April 2021.

If you have already applied for other scholarships this academic session using the Faculty Scholarship Application form you do not need to complete this form again. Instead you should email [Email Address Removed] to inform us you would like to be considered for this scholarship project.

Any queries regarding the application process should be directed to [Email Address Removed] 

Closing date for this scholarship is Friday 09 April 2021.

Biological Sciences (4) Medicine (26)

Funding Notes

A fully funded PhD scholarship is available for a start in October 2021. The scholarship will cover UK tuition fees* and attract an annual tax-free stipend of £15,285 for up to 3 years, subject to satisfactory progress.
*International applicants may apply but must make up the difference between UK International tuition fees. Candidates whose first language is not English must provide evidence that their English language is sufficient to meet the specific demands of their study.

References

1. Heimdahl A (1999) (1999) Prevention and management of oral infections in cancer patients. Support Care Cancer 7:224–228
2. Zecha JAEM, Raber-Durlacher JE, Laheij AMGA, et al. The impact of the oral cavity in febrile neutropenia and infectious complications in patients treated with myelosuppressive chemotherapy. Support Care Cancer. 2019;27(10):3667-3679.
3. Hong CH, Napeñas JJ, Hodgson BD, et al. A systematic review of dental disease in patients undergoing cancer therapy. Support Care Cancer. 2010;18(8):1007-1021.
4. Elad S, Raber-Durlacher JE, Brennan MT, et al. Basic oral care for hematology-oncology patients and hematopoietic stem cell transplantation recipients: a position paper from the joint task force of the Multinational Association of Supportive Care in Cancer/ International Society of Oral Oncology (MASCC/ISOO) and the European Society for Blood and Marrow Transplantation (EBMT). Support Care Cancer. 2015;23(1):223-236.
5. Helmink, B.A., Khan, M.A.W., Hermann, A. et al. The microbiome, cancer, and cancer therapy. Nat Med 25, 377–388 (2019).
6. Jia G, Zhi A, Lai PFH, et al. The oral microbiota – a mechanistic role for systemic diseases Br Dent J, 224 (6) (2018), pp. 447-455

Where will I study?

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