Skip to main content
Log in

Receptor‐Ck regulates giardia encystation process

  • Published:
Molecular and Cellular Biochemistry Aims and scope Submit manuscript

Abstract

The study addressed to resolve the mechanism involved in cholesterol‐dependent regulation of giardia encystation process, revealed that (a) the trophozoites have the ability to express genes coding for receptor‐Ck and sterol element binding protein (SREBP); (b) inhibition of cholesterol dependent activation of receptor‐Ck results in the upregulation of CWP‐1 gene expression leading to encystation process. Based upon these findings, we propose that receptor‐Ck dependent signalling is responsible for the regulation of giardia encystation process by cholesterol.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

References

  1. Gillin FD, Reiner DS, McCafery JM: Cell biology of primitive eukaryote giardia lambia. Annu Rev Microbiol 50: 679–705, 1996

    Google Scholar 

  2. Lujan HD, Mowatt MR, Nash TE: Mechanisms of giardia lambia differentiation into cysts. Microbiol Mol Biol Rev 61: 294–304, 1997

    Google Scholar 

  3. Lujan HD, Mowatt MR, Byrd GG, Nash TE: Cholesterol starvation induces differentiation of the intestinal parasite giardia lambia. Proc Natl Acad Sci USA 93: 7628–7633, 1996

    Google Scholar 

  4. Mowatt MR, Lujan HD, Colten JB, Bowers B, Yee J, Nash TE: Developmentally regulated expression of a giardia lambia cyst wall protein gene. Mol Microbiol 15: 955–963, 1995

    Google Scholar 

  5. Kaul D: Do human platelets possess LDL-receptor specific for apoprotein ‘B’ or cholesterol? Curr Sci 65: 883–886, 1993

    Google Scholar 

  6. Kaul D: Receptor-Ck and leukemogenesis. Leuk Res 22: 389–394, 1998

    Google Scholar 

  7. Kaul D, Kaur M: Receptor-Ck regulates the expression of cyclin-dependent kinase inhibitors. Mol Cell Biochem 200: 183–186, 1999

    Google Scholar 

  8. Kaur M, Kaul D, Sobti RC: Receptor-Ck dependent regulation of genes involved in the cell cycle. Mol Cell Biochem 181: 137–142, 1998

    Google Scholar 

  9. Kaul D, Khosla VK: Molecular basis of ‘cholesterol feedback lesion’ in CNS tumors. Neurology India 48: 174–177, 2000

    Google Scholar 

  10. Borcham PFL, Phillips RE, Shepherd RW: Altered uptake of metronidazole in vitro by stocks of giardia intestinalis with different drug sensitivities. Trans R Soc Trop Med Hyg 82: 104–106, 1988

    Google Scholar 

  11. Goel R, Singh J, Kaul D: Receptor-Ck dependent signalling regulates LDL-receptor gene transcription. Mol Cell Biochem 169: 79–83, 1997

    Google Scholar 

  12. Xu D, Grubder A, Bjorkholm M, Peterson C, Pisa P: Suppression of telomerase reverse transcriptase (hTER) expression in differentiated HL-60 cells: Regulatory mechanisms. Brit J Cancer 80: 1156–1161, 1999

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kaul, D., Rani, R. & Sehgal, R. Receptor‐Ck regulates giardia encystation process. Mol Cell Biochem 225, 167–169 (2001). https://doi.org/10.1023/A:1012277001794

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1012277001794

Navigation