HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Osteopontin is down-regulated in hydatidiform mole.

AbstractOBJECTIVE:
Osteopontin (OPN) is a glycoprotein of the extracellular matrix that can bind to different types of receptors including integrins and CD44 receptors. Multiple binding affinity enables OPN to play a role in many physiological and pathological processes. OPN contributes to tumorigenesis in several types of cancers. OPN is also expressed by the endometrium and by trophoblast cells of the chorionic villus in human placenta, where OPN may regulate implantation and placentation in early pregnancies by promoting cell-cell interactions, adhesion, spreading, and migration of trophoblast. Our purpose was to determine the expression of OPN mRNA and protein in hydatidiform mole and in normal placenta of comparable gestational age.
METHODS:
A total of 13 fresh tissues from complete hydatidiform moles, 2 from partial hydatidiform moles, and 9 from normal placentas were analyzed by performing quantitative real-time PCR on microdissected trophoblast cells and immunohistochemistry on frozen sections of tissue.
RESULTS:
Our results showed significantly lower expression of OPN mRNA and protein in hydatidiform mole, and in particular complete mole (P = 0.001 by real-time PCR and P < 0.001 by immunohistochemistry) as compared to nermal placenta.
CONCLUSION:
Although precise molecular mechanisms of gestational trophoblastic diseases have not yet been determined, down-regulation of osteopontin may play an important role in the pathogenesis of molar pregnancy.
AuthorsJozsef Batorfi, Vilmos Fulop, Jae-Hoon Kim, David R Genest, Jozsef Doszpod, Samuel C Mok, Ross S Berkowitz
JournalGynecologic oncology (Gynecol Oncol) Vol. 89 Issue 1 Pg. 134-9 (Apr 2003) ISSN: 0090-8258 [Print] United States
PMID12694667 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • RNA, Messenger
  • SPP1 protein, human
  • Sialoglycoproteins
  • Osteopontin
Topics
  • Dissection
  • Down-Regulation
  • Female
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Hydatidiform Mole (genetics, metabolism)
  • Immunohistochemistry
  • Micromanipulation
  • Osteopontin
  • Placenta (metabolism)
  • Pregnancy
  • RNA, Messenger (biosynthesis, genetics)
  • Reverse Transcriptase Polymerase Chain Reaction
  • Sialoglycoproteins (biosynthesis, genetics)
  • Uterine Neoplasms (genetics, metabolism)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: