Pseudomonas- A potential Source for Drug Lead Discovery
Kirti Hira1 , AmeerBasha Shaik2, Santosh Kumar1 and Sajeli Begum Ahil1*
1Department of Pharmacy, Hyderabad Campus, India
2Maize Research Centre, ARI, India
Submission: July 03, 2017; Published: July 21, 2017
*Corresponding author: Sajeli Begum Ahil, Department of Pharmacy, BITS-Pilani, Hyderabad Campus, Jawahar Nagar, Shameerpet, Hyderabad-500078, Telangana State, India, Tel: +914066303578; Email: sajeli@hyderabad.bits-pilani.ac.in
How to cite this article: Kirti H, Ameer B S, Santosh K, Sajeli B A. Pseudomonas- A potential Source for Drug Lead Discovery. Curr Trends Biomedical Eng & Biosci. 2017; 5(5): 555674. DOI: 10.19080/CTBEB.2017.05.555674
Abstract
Microorganisms have always been considered as important resource in drug discovery. As there is always a need for medicines with higher efficacy and lesser side effects, pharmaceutical research based on natural sources still continues by playing a vital role in discovery and development of drugs. Among microorganisms, bacteria have been identified as a potential spring for identifying new chemical entities. Pseudomonas is a diverse genus of Gammaproteobacteria which exhibits remarkable genomic diversity and is well recognized for the production of a variety of secondary metabolites. Pseudomonads have been shown to produce siderophores, pyoverdins, lipopeptides, numerous non- ribosomally derived peptides, polyketides and small molecular weight antibiotics or phytotoxins which demonstrate remarkable biological activities. The pharmacological activities exhibited by metabolites of different Pseudomonas species are elaborated in this review to explore the scope of probing pseudomonas species for drug lead molecules.
Keywords: Pseudomonas; Secondary metabolites; Siderophores; Pyoverdins; Lipopeptides; Polyketides; Cyclic dipeptides; Antimicrobial; Antiinflammatory
Introduction
Since the very existence of human civilization natural sources have been considered as the basis for the treatment of several diseases. Basis of development of modern medicine remain rooted in traditional medicine and therapies which were based on natural products [1,2]. Discovery of new antibiotics such as penicillin from microorganisms has led to the expansion of pharmaceutical research based on microbial sources [3]. Among the microbial sources, bacteria with a small group of taxa have been recognized as potential source for the development of new drugs. Discovery of novel secondary metabolites from marine actinomycetes also opened a new dimension for product research [4].
Pseudomonas
Pseudomonas is a diverse genus of Gamma proteobacteria with more than 60 species, ubiquitously present in environment such as soil, water, plant surface and animals. Pseudomonas species exhibits remarkable ecological and metabolic diversity with complete genomes of at least 22 strains. They are well known for their enormous metabolic capability to produce remarkable array of structurally diverse bioactive secondary metabolites [5] (Figure 1). Pseudomonads are capable of producing siderophores, pyoverdins [6-8], lipopeptides [9], numerous non-ribosomally derived peptides [10,11], polyketides and small molecular weight antibiotics or phytotoxins [7,12,13].
Secondary metabolites of pseudomonas species and their biological activity

Pseudomonads are known to secrete numerous proteins and secondary metabolites that exhibit diverse biological activity [5,10,11,14-17]. Table 1 details the pharmacological effects of specific compounds produced by different species of Pseudomonas. Recent research is focused towards developing cyclic dipeptides produced by Pseudomonas as anti inflammatory molecules.

Acknowledgement
Authors acknowledge Department of Science and Technology, Govt. of India (EMR/2016/002460). One of the authors (KH) gratefully acknowledges Council for Scientific Industrial Research, India for grant of Junior Research Fellowship (09/1026(0019)/2017 EMR-I).
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