9.7

Concluding Remarks

It has been observed that robust and validated biomarkers are the need of the hour for

improving and providing an effective diagnosis, monitoring desired drug activity

and therapeutic response. Such an approach provides precise guidance for the

development of safer and targeted therapies for various chronic diseases. While

different types of biomarkers have been found to be useful in theeld of drug

discovery and development, it is imperative to note that the process of identifying,

testing, analysing and validating disease-specic biomarkers needs specic attention

and has been quite challenging. Reverse translational research integrated techniques,

with recent advanced methodologies such as multipleomics (multi-omics)

approaches (genomics, transcriptomics, proteomics, metabolomics, cytometry and

imaging), have made it quite possible in providing the acceleration to the research

towards the discovery and development of specic biomarkers for complex and

chronic diseases.

Although focused research in drug discovery has many challenges like high

budget, personnel skills and the resource requirement, it is expected that reverse

translational research is one of the important strategies to be considered. The novel

biomarkers may eventually assist in providing an optimal decision-making during

the course of drug development from initiation of conception to commercialisation.

This is also likely to open the pathway to an effective implementation of

personalised therapies for various complex and chronic diseases.

References

Ananthamohan K, Jha RM, Sharma S (2019) Chapter 4 Use of circulating nucleic acids,

metabolites, and proteins as clinical biomarkers for earlier prognosis and diagnosis of

disease. In: Prognostic epigenetics volume 15 in translational epigenetics. Academic Press,

Oxford, pp 85116. https://doi.org/10.1016/B978-0-12-814259-2.00005-4

Aronson JK, Ferner RE (2017) Biomarkersa general review. Curr Protoc Pharmacol 76(1):

9.23.19.23.17. https://doi.org/10.1002/cpph.19

Ashburn TT, Thor KB (2004) Drug repositioning: identifying and developing new uses for existing

drugs. Nat Rev Drug Discov 3:673683. https://doi.org/10.1038/nrd1468

Boolell M, Allen MJ, Ballard SA, Gepi-Attee S, Muirhead GJ, Naylor AM, Osterloh IH, Gingell C

(1996) Sildenal: an orally active type 5 cyclic GMP-specic phosphodiesterase inhibitor for

the treatment of penile erectile dysfunction. Int J Impot Res 8(2):4752

Campbell LL, Polyak K (2007) Breast tumor heterogeneity: cancer stem cells or clonal evolution.

Cell Cycle 6:23322338. https://doi.org/10.4161/cc.6.19.4914. Epub 2007 Aug 17

Carini C, Seyhan AA, Fidock M, Gool AV (2019) Denitions and conceptual framework of

biomarkers in precision medicine. In: Carini C, Fidock M, Gool AV (eds) Handbook of

biomarkers and precision medicine. Chapman and Hall/CRC, New York, p 2. https://doi.org/

10.1201/9780429202872

Carvalho FRS, Carvalho LCC, Freitas DD (2014) Translational and reverse translational research

supporting precision medicine: acanthamoeba keratitis as a model of linkage between clinical

and basic research focused on personalized ophthalmology. J Ophthalmic Clin Res 1:001.

https://doi.org/10.24966/OCR-8887/100001

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R. K. Goyal and G. Aggarwal