01Mar 2019

THE DR FAMILY - AFIMBRIAL ADHESIN GENE IN UROPATHOGENIC ESCHERICHIA COLI ISOLATED FROM PATIENTS SUSPECTED WITH URINARY TRACT INFECTION.

  • SSSMCRI, Sri Balaji Vidhyapeeth University, Chennai.
  • SSSMCRI, Shri Balaji Vidhyapeeth University, Chennai.
  • SRDCH, Dr.MGR Medical University, Coimbatore.
  • Abstract
  • Keywords
  • References
  • Cite This Article as
  • Corresponding Author

Background: UropathogenicEscherichia coli (UPEC), possess different adhesin factors for binding the cells of urinary tract, afimbrialadhesin coded by the gene afa is one among the adhesin factors belonging to Dradhesin family. afa facilitates the colonization by binding to the receptor on the Dr blood group antigen, it stimulates the cytopathic effect and various signal cascade reactions. This adhesin accounts for chronic and recurrence in UTI. Aim & Objective: The aim of the study is to determine the prevalence of afa gene by using molecular method PCR. Materials & Methods: Bacteria isolated from urine samples were processed and confirmed for E. coli using standard bacteriological methods. DNA extraction done followed by PCR amplication were processed for detection of afa genes using specific primer and the specific base pair bands were noted using gel documentation. Results:The afa gene was found in 49 isolates (23.1%) of UPEC out of 212 isolates, which were distributed among male patients 19(38.8%) and 30 (61.2%) in female patients with more prevalence among less than 20 years of age group. Conclusion:afa, though a low frequency gene in UPEC showed high percentage in this study comparing the other geographical areas out of its low frequency.


  1. Wanderley Dias da Silveira, FabianeBenetti, Marcelo Lancellotti, Alessandra Ferreira, Vera NisakaSolferini& Marcelo Brocchi. Biological and genetic characteristics of uropathogenic Escherichia coli strains, Rev. Inst. Med. trop. 2001; 43 (6):303-310.
  2. Nowicki B, et al., 1993. Short consensus repeat-3 domain of recombinant decay-accelerating factor is recognized by?Escherichia colirecombinant Dradhesin in a model of a cell-cell interaction.? Exp. Med.?178(6):2115-2121.
  3. Selvarangan R, et al., 2000. Role of decay-accelerating factor domains and anchorage in internalization of Dr-fimbriated?Escherichia coli.? Immun.68(3):1391-1399.
  4. Bailey & Scott?s, Diagnostic Microbiology. Chapter 22, Enterobacteriaceae, pp. 323-333.
  5. FarzanehFiroozeh, MahmoodSaffari ,ForooghNeamati, Mohammad Zibaei. Detection of virulence genes in Escherichia coli isolated from patients with cystitis and pyelonephritis. International Journal of Infectious Diseases, 2014; 29: 219?222
  6. Soto SM, Zuniga S, Ulleryd P, and Vila J.Acquisition of Pathogenicity Island in an Escherichia coli clinical isolates causing febrile urinary tract infection, Eur J Clin Microbial Infect Dis. 2011;10: 1258-62.
  7. Justyna Bien, Olga Sokolova and PrzemyslawBozkoWitold, Role ofUropathogenicEscherichiacoli Virulence Factors in Development ofUrinary Tract Infection and Kidney Damage. Review article, International Journal of Nephrology Volume 2012.
  8. Goluszko P, et al., 1997. Drfimbriae operon of uropathogenic?Escherichia colimediate microtubule-dependent invasion to the HeLa epithelial cell line.? Infect. Dis.176(1):158-167.
  9. Tiba, M.R. Yano, T. &Leite, D.S. Genotypic characterization of virulence factors in Escherichia coli strains from patients with cystitis. Rev. Inst. Med. trop. S. Paulo 2008; 50(5): 255-260.
  10. Mohajeri P, Khademi H, Ebrahimi R, Farahani A, Rezaei M. Frequency distribution of virulence factors in uropathogenicEscherichia coli isolated from Kermanshah in 2011-2012. Int J App Basic Med Res 2014;4:111-6.
  11. MasoudRahdar; Ahmad Rashki ; HamidrezaMiri, Comparison of the Common Adhesin Coding Operons Distribution in Uropathogenic and Phylogenetic Group B2 and A Escherichia coli Isolates, Avicenna J ClinMicrobInfec. 2014; 1(3): e22981.
  12. BanafsheDormanesh ;FarhadSafarpoorDehkordi ; SaharHosseini ; Hassan Momtaz ; Virulence Factors and O-Serogroups Profiles of UropathogenicEscherichia coli isolated from Iranian Pediatric Patients, Iran. Red Crescent Med J. 2014; 16(2): e14627.
  13. A. Oliveira, K.S. Paludo, L.N.V.S. Arend, S.M.S.S. Farah, F.O. Pedrosa4, E.M. Souza, M. Surek, G. Picheth and C.M.T. Fadel-Picheth, Virulence characteristics and antimicrobial susceptibility of uropathogenic Escherichia coli strains. Genetics and Molecular Research, 2011; 10(4): 4114 ? 4125.
  14. YandagMunkhdelger, NyamaaGunregjav, AltantsetsegDorjpurev , Nishi Juniichiro, JavSarantuya. Detection of virulence genes, phylogenetic group and antibiotic resistance of uropathogenicEscherichia coli in Mongolia. J Infect DevCtries 2017; 11(1):51-57.
  15. Ahmed K. A AL-Ganimi, Jawad K.T AL-Khafaji2 Karbala J. Some Virulence Factors Genes and Phylogenic Groups of Uropathogenic Escherichia Coli (UPEC) Isolated from Karbala Patients. Med. 2015; 9: (1).
  16. SugandhaSrivastava,?JyotsnaAgarwal,?Bharti Mishra,?RichaSrivastava. Virulence versus fitness determinants in?Escherichia coliisolated from asymptomatic bacteriuria in healthy nonpregnant women. Indian Journal of Medical Microbiology, 2014; 34(1): 46 ? 51.
  17. G. M. Salih, Mohammed. I. Nader, Maarib. N. Rasheed, Rapid detection of uropathogenicEscherichia coli virulence factors in iraqi patients by multiplex polymerase chain reaction. World Journal of Pharmaceutical Research, 2015; 4: (12), 507-515.
  18. AazamKarimian, Hassan MomtazandMahbobeMadani. Detection of uropathogenicEscherichia coli virulence factors in patients with urinary tract infections in Iran. African Journal of Microbiology Research, 2012; 6(39): 6811-6816.
  19. Narmin S. Merza, Jaladet M. S., The Prevalence of Virulence Factors Among Uropathogenic Escherichia coli Strains Isolated From Different Hospitals in Kurdistan Region-Iraq. International Journal of Bioinformatics and Biomedical Engineering, 2015; 1: (3) 338-343.

[SM.Nachammai, Karthika Jayakumar, Vinithra Suresh, Kousalya.M. (2019); THE DR FAMILY - AFIMBRIAL ADHESIN GENE IN UROPATHOGENIC ESCHERICHIA COLI ISOLATED FROM PATIENTS SUSPECTED WITH URINARY TRACT INFECTION. Int. J. of Adv. Res. 7 (Mar). 202-205] (ISSN 2320-5407). www.journalijar.com


SM.Nachammai


DOI:


Article DOI: 10.21474/IJAR01/8622      
DOI URL: https://dx.doi.org/10.21474/IJAR01/8622