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CC BY 4.0 · Glob Med Genet 2022; 09(04): 277-286
DOI: 10.1055/s-0042-1758204
Original Article

Exosomal microRNAs Targeting TP53 Gene as Promising Prognostic Markers for Head and Neck Squamous Cell Carcinoma

Vijayashree Priyadharsini Jayaseelan 
1   Clinical Genetics Lab, Centre for Cellular and Molecular Research, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India
,
Paramasivam Arumugam 
2   Molecular Biology Lab, Centre for Cellular and Molecular Research, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India
› Institutsangaben
Funding The authors V.P.J. and P.A. thank the Science and Engineering Research Board (SERB), Government of India for the financial support rendered through the core research grant (CRG) (No. CRG/2019/003756) and (EEQ) (No.EEQ/2019/000411).
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Abstract

Statement of Problem MicroRNAs are small non-coding RNAs that regulate an array of functions by targeting crucial genes. A significant dysregulation in the TP53 profile has been observed in the head and neck squamous cell carcinoma (HNSCC) patients. Hence, the present in silico study was designed to identify those microRNAs which target TP53 gene and demonstrate their differential expression in HNSCC cases.

Materials and Methods The study was extended further to explore their exosomal location using database such as EVmiRNA and ExoCarta. The study follows an observational in silico design. Computational tool miRDB was used identify the microRNA targets of TP53 gene. The UALCAN server was used to ascertain the expression of microRNA in HNSCC cases derived from the Cancer Gene Atlas dataset. The survival of HNSCC patients based on the differential expression microRNA markers were recorded. Further, each of the microRNA was queried for their exosomal presence using EVmiRNA.

Results About 102 microRNA targets of TP53 gene with a target score in the range of 95–50 were identified. The differential expression data for 52 microRNAs was retrieved from the UALCAN database. The microRNAs hsa-miR-421, hsa-miR-548f-5p, and hsa-let-7c-5p were found to be differentially expressed with marked influence over the survival of HNSCC patients. Furthermore, hsa-miR-421 and hsa-let-7c-5p were found to have an exosomal origin especially in body fluids such as blood and saliva.

Conclusion The results accumulated from the present study identified three microRNAs which can affect the functions of TP53 gene and bring about serious outcomes in HNSCC patients. The microRNAs of exosomal origin targeting TP53 gene in HNSCC patients can be a promising prognostic marker, which can be further used as a therapeutic lead by designing inhibitors.

Keywords

microRNAs - exosomes - TP53 - HNSCC - theragnostic

Authors' Contribution

V.P.J. did the conceptualization, worked on analysis and results, and interpretation and manuscript writing. P.A. did the study design, cross-valuation of results, manuscript writing, formatting and editing, and overall supervision.


Ethics Approval

Not applicable.


Informed Consent

Not applicable.




Publikationsverlauf

Eingereicht: 17. August 2022

Angenommen: 30. August 2022

Artikel online veröffentlicht:
14. Dezember 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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