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Cysteine proteinase 30 in clinical isolates of T. vaginalis from symptomatic and asymptomatic infected women

Yadav, Manisha LU ; Dubey, M L; Gupta, Indu; Bhatti, Gurjeet and Malla, Nancy (2007) In Experimental Parasitology 116(4). p.399-406
Abstract
A cysteine proteinase of 30 kDa (CP30) of Trichomonas vaginalis, is known to play a role in cytoadherence of the parasite to host cells. However, the CP30 activity in clinical isolates from symptomatic and asymptomatic patients has not been analyzed. In the present study, CP30 was detected in 20 fresh and long-term culture maintained T. vaginalis isolates each from symptomatic and asymptomatic women by substrate gel electrophoresis and immunoblotting. Though CP30 was detected in all the fresh isolates from 20 symptomatic and 20 asymptomatic women, the intensity of CP30 band was significantly higher in isolates from symptomatic as compared to asymptomatic women indicating higher expression in former. CP30 was found in all the 20 long-term... (More)
A cysteine proteinase of 30 kDa (CP30) of Trichomonas vaginalis, is known to play a role in cytoadherence of the parasite to host cells. However, the CP30 activity in clinical isolates from symptomatic and asymptomatic patients has not been analyzed. In the present study, CP30 was detected in 20 fresh and long-term culture maintained T. vaginalis isolates each from symptomatic and asymptomatic women by substrate gel electrophoresis and immunoblotting. Though CP30 was detected in all the fresh isolates from 20 symptomatic and 20 asymptomatic women, the intensity of CP30 band was significantly higher in isolates from symptomatic as compared to asymptomatic women indicating higher expression in former. CP30 was found in all the 20 long-term cultured isolates from symptomatic whereas only in 70% of asymptomatic women indicating that CP30 expression is a more stable characteristic of symptomatic isolates. The isolates from symptomatic women, demonstrated significantly higher cytoadherence to VECs as compared to asymptomatic women. In both the types of isolates, this cytoadherence was inhibited significantly by CP30 specific hyperimmune serum. These results confirm that CP30 is an important virulence factor of T. vaginalis and has an important role in cytoadherence to VECs and thus has a role in pathogenesis of trichomoniasis. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Experimental Parasitology
volume
116
issue
4
pages
399 - 406
publisher
Elsevier
external identifiers
  • pmid:17420015
  • scopus:34249791763
ISSN
0014-4894
DOI
10.1016/j.exppara.2007.02.007
language
English
LU publication?
no
id
8175f30e-a3ac-4fe8-8041-a1709216fb98 (old id 1143633)
date added to LUP
2008-07-29 12:19:17
date last changed
2017-01-01 04:37:09
@article{8175f30e-a3ac-4fe8-8041-a1709216fb98,
  abstract     = {A cysteine proteinase of 30 kDa (CP30) of Trichomonas vaginalis, is known to play a role in cytoadherence of the parasite to host cells. However, the CP30 activity in clinical isolates from symptomatic and asymptomatic patients has not been analyzed. In the present study, CP30 was detected in 20 fresh and long-term culture maintained T. vaginalis isolates each from symptomatic and asymptomatic women by substrate gel electrophoresis and immunoblotting. Though CP30 was detected in all the fresh isolates from 20 symptomatic and 20 asymptomatic women, the intensity of CP30 band was significantly higher in isolates from symptomatic as compared to asymptomatic women indicating higher expression in former. CP30 was found in all the 20 long-term cultured isolates from symptomatic whereas only in 70% of asymptomatic women indicating that CP30 expression is a more stable characteristic of symptomatic isolates. The isolates from symptomatic women, demonstrated significantly higher cytoadherence to VECs as compared to asymptomatic women. In both the types of isolates, this cytoadherence was inhibited significantly by CP30 specific hyperimmune serum. These results confirm that CP30 is an important virulence factor of T. vaginalis and has an important role in cytoadherence to VECs and thus has a role in pathogenesis of trichomoniasis.},
  author       = {Yadav, Manisha and Dubey, M L and Gupta, Indu and Bhatti, Gurjeet and Malla, Nancy},
  issn         = {0014-4894},
  language     = {eng},
  number       = {4},
  pages        = {399--406},
  publisher    = {Elsevier},
  series       = {Experimental Parasitology},
  title        = {Cysteine proteinase 30 in clinical isolates of T. vaginalis from symptomatic and asymptomatic infected women},
  url          = {http://dx.doi.org/10.1016/j.exppara.2007.02.007},
  volume       = {116},
  year         = {2007},
}