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Expression of Cyclooxygenase-2 mRNA and identification of its splice variant in human myometrium obtained from women in labor

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Summary

In order to investigate the expression of cyclooxygenase-2 (COX-2) in human lower segments of myometrium obtained from women in labor and those not in labor and identify the splicing variant of COX-2, reverse transcriptase-polymerase chain reaction (RT-PCR) was used to detect the expression of COX-2. The primers were designed and synthesized according to the sequence of rat COX-2 splice variant which was discovered firstly by us. Then the splicing variant of COX-2 in human myometrium from woman in labor was identified, cloned into vector and sequenced. The results showed that the expression of COX-2 mRNA was lower in human myometrium obtained from women who were not in labor than that in labor women and a new band of COX-2 was obtained in myometrium from labor woman. The fragment included an unspliced intron, which pitched between exons 7 and 8. It was suggested that COX-2 gene was not only expressed highly in human myometrium from woman in labor, but also produced splicing variant by alternative splicing.

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References

  1. Miklos M, Rigo J Jr, Romero Ret al. Oxytocin activates mitogen-activated protein kinase and up-regulates cyclooxygenase-2 and prostaglandin production in human myometrial cells. Am J Obster Gynecol, 1999, 18 (1): 42

    Google Scholar 

  2. Mijovic J E, Zakar T, Angelova Jet al. Prostaglandin endoperoxide H synthase mRNA expression in the human amnion and decidua during pregnancy and in the amnion at term. Mol Hum Reprod, 1999, 5(2): 182

    Article  CAS  PubMed  Google Scholar 

  3. Gross G, Imamura T, Vogt SKet al. Inhibition of cyclooxygenase-2 prevents inflammation-mediated preterm labor in the mouse. Am J Physiol Regul Integr Comp Physiol, 2000, 278(6): R1415

    Article  CAS  PubMed  Google Scholar 

  4. Gilroy D W, Colville-Nash P R, Willis Det al. Inducible cyclooxygenase may have anti-inflammatory properties. Nature Medicine, 1999, 5(6): 698

    Article  CAS  PubMed  Google Scholar 

  5. Willoughby D A, Moore A R, Colville-Nash P R. COX-1, COX-2, and COX-3 and the future treatment of chronic inflammatory disease. Lancet, 2000, 355(9204): 646

    Article  CAS  PubMed  Google Scholar 

  6. Smith W L, Langenbach R. Why there are two cyclooxygenase isozymes. J Clin Invest, 2001, 107(12): 1491

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  7. Modrek B, Resch A, Grasso Cet al. Genome-wide detection of alternative splicing in expressed sequences of human genes. Nucleic Acids Research, 2001, 29(13): 2850

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  8. Modrek B, Lee C. A genomic view of alternative splicing. Nature Genetic, 2002, 30(1): 13

    Article  CAS  Google Scholar 

  9. Erkinheimo T L, Saukkonen K, Narko Ket al. Expression of cyclooxygenase-2 and prostanoid receptors by human myometrium. J Clin Endocrinol Metab, 2000, 85 (9): 3468

    CAS  PubMed  Google Scholar 

  10. Gross G A, Imamura T, Luedke Cet al. Opposing actions of prostaglandins and oxytocin determine the onset of murine labor. Proc Natl Acad Sci, 1998, 95 (20): 11875

    Article  ADS  CAS  PubMed  PubMed Central  Google Scholar 

  11. Moore S D, Brodt-Eppley J, Cornelison L Met al. Expression of prostaglandin H synthase isoforms in human myometrium at parturition. Am J Obstet Gynecol, 1999, 180 (1 Pt 1): 103

    Article  CAS  PubMed  Google Scholar 

  12. Slater D M, Dennes W J, Campa J Set al. Expression of cyclo-oxygenase types-1 and-2 in human myometrium throughout pregnancy. Mol Hum Reprod, 1999, 5 (9): 880

    Article  CAS  PubMed  Google Scholar 

  13. Simmons D, Botting R M, Robertson P Met al. Induction of an acetaminophen-sensitive cyclooxygenase with reduced sensitivity to nonsteroid antiinflammatory drugs. Proc Natl Acad Sci USA, 1999, 96(6): 3275

    Article  ADS  CAS  PubMed  PubMed Central  Google Scholar 

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HUANG Yinping, female, born in 1954, professor

This project was supported by grants from National Natural Sciences Foundation of China (No. 30070929, 30271363).

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Yinping, H., Duyun, Y., Ping, W. et al. Expression of Cyclooxygenase-2 mRNA and identification of its splice variant in human myometrium obtained from women in labor. Current Medical Science 25, 5–7 (2005). https://doi.org/10.1007/BF02831372

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  • DOI: https://doi.org/10.1007/BF02831372

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