A novel antilithiatic protein from Tribulus terrestris having cytoprotective potency.
Adhesion of calcium oxalate (CaOx) crystals to kidney cells is a key event in kidney stones associated with marked hyperoxaluria. As the propensity of stone recurrence and persistent side effects are not altered by surgical techniques available, phytotherapeutic agents could be useful as an adjuvant therapy. The present study is aimed at examining the antilithiatic potency of the protein biomolecules of Tribulus terrestris, a plant which is a common constituent of herbal marketed preparations to treat urolithiasis. Various biochemical methods with mass spectrometry were used to purify and characterize the purified protein. The protective potency of the protein was tested on the oxalate induced injury on renal epithelial cell lines (NRK 52E). An antilithiatic protein having molecular weight of ~ 60kDa was purified. This purified protein showed similarities with Carotenoid cleavage dioxygenase 7 (CCD7) of Arabidopsis thaliana after matching peptide mass fingerprints in MASCOT search engine. An EF hand domain was identified in CCD7 by SCAN PROSITE. Presence of an EF hand domain, a characteristic feature of calcium binding proteins and a role in the synthesis of retinol which is transported by retinol binding protein, a protein found in kidney stone matrix; of CCD7 support the role of TTP as an antilithiatic protein. The protective potency of TTP on NRK 52E was quite comparable to the aqueous extract of cystone. Our findings suggest that this purified protein biomolecule from Tribulus terrestris could open new vista in medical management of urolithiasis.
Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat- 173234, Solan, India.
Anshu
A
Aggarwal
Simran
S
Tandon
Surinder Kumar
SK
Singla
Chanderdeep
C
Tandon
D000818:Animals; D029681:Arabidopsis Proteins; D002129:Calcium Oxalate / Q000037:antagonists & inhibitors* / Q000737:chemistry / Q000378:metabolism; D002135:Calcium-Binding Proteins / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D002460:Cell Line; D049308:Dioxygenases / Q000737:chemistry / Q000378:metabolism; D020832:EF Hand Motifs; D004847:Epithelial Cells / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D007668:Kidney / Q000166:cytology / Q000378:metabolism; D007669:Kidney Calculi / Q000737:chemistry / Q000378:metabolism; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D010940:Plant Proteins / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism; D051381:Rats; D017386:Sequence Homology, Amino Acid; D032444:Tribulus / Q000737:chemistry; D052878:Urolithiasis / Q000188:drug therapy / Q000378:metabolism
D029681:Arabidopsis Proteins; D002135:Calcium-Binding Proteins; D010936:Plant Extracts; D010940:Plant Proteins; D002129:Calcium Oxalate; C494441:CCD7 protein, Arabidopsis; D049308:Dioxygenases