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2006 | 62 | 07 |

Tytuł artykułu

Gap junction proteins in nonpregnant porcine myometrium

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The aim of this study was to analyse the expression of gap junction proteins, connexins, in non-pregnant porcine myometrium. Uterine tissue was obtained immediately after slaughter of the animals and the examination of ovarian morphology. Tissues were collected from prepubertal and mature pigs at preovulatory and secretory phases of the oestrous cycle and frozen in liquid nitrogen. Cryosections were immunofluorescently labelled using antibodies against connexins 26, 32, 40 and 43. Among four connexins studied, only connexin 43 was detected in the myometrium of the immature and adult porcine uterus. Connexin 43 labelling appeared as bright fluorescent spots distributed along smooth muscle cell interfaces. The amount of labelling for Cx43 was much higher in the circular layer than in the longitudinal layer in all prepubertal and mature porcine myometria. These results support the concept that connexin 43 is the principal connexin expressed in the nonpregnant myometrium. Furthermore, it seems that muscle layer-specific distribution of connexin 43 gap junctions may contribute to diverse functions of circular and longitudinal smooth muscles in modulating uterine motility.

Wydawca

-

Rocznik

Tom

62

Numer

07

Opis fizyczny

p.766-768,fig.,ref.

Twórcy

autor
  • Jagiellonian University, Ingardena 6, 30-060 Krakow, Poland
autor
autor
autor

Bibliografia

  • 1.Cao J., Wakatsuki A., Yoshida M., Kitazawa T., Taneike T.: Thromboxane A2 (TP) receptor in the non-pregnant porcine myometrium and its role in regulation of spontaneous contractile activity. Eur. J. Pharmacol. 2004, 485, 317-327.
  • 2.Çiray H. N., Bäckström T., Ulmsten U., Roomans G. M.: Steroid hormone effects on intracellular communication between term pregnant human myometrial cells before labor. Biol. Reprod. 1996, 55, 379-385.
  • 3.Crankshaw D. J.: Pharmacological techniques for in vitro study of uterus. J. Pharmacol. Toxicol. Methods 2001, 45, 123-140.
  • 4.Doualla-Bell F., Lye S. J., Labrie F., Fortier M. A.: Differential expression and regulation of connexin-43 and cell-cell coupling in myocytes from the circular and longitudinal layers of bovine myometrium. Endocrinology 1995, 136, 5322-5328.
  • 5.Garfield R. E., Sims S. M., Daniel E. E.: Gap junctions: their presence and necessity in myometrium during parturition. Science 1977, 198, 958-959.
  • 6.Garfield R. E., Sims S. M., Kannan M. S., Daniel E. E.: Possible role of gap junctions in activation of myometrium during parturition. Am. J. Physiol. 1978, 235, C168-C179.
  • 7.Giepmans N. G.: Gap junctions and connexin-interacting proteins. Cardiovasc. Res. 2004, 62, 233-245.
  • 8.Hertelendy F., Zakar T.: Regulation of myometrial smooth muscle functions, Curr. Pharm. Des. 2004, 10, 2499-2517.
  • 9.Isaka M., Takaoka K., Yamada Y., Abe Y., Kitazawa T., Taneike T.: Characterization of functional endothelin receptors in the porcine myometrium. Peptides 2000, 21, 543-551.
  • 10.Karasinski J., Semik D., Kilarski W.: Connexin43 in porcine myocardium and non-pregnant myometrium. Tissue Cell 2000, 32, 133-140.
  • 11.Kilarski W. M., Dupont E., Coppen S., Yeh H.-I., Vozzi C., Gourdie R. G., Rezapour M., Ulmsten U., Roomans G. M., Severs N. J.: Identification of two further gap-junctional proteins, connexin40 and connexin45, in human myometrial smooth muscle cells at term. Eur. J. Cell Biol. 1998, 75, 1-8.
  • 12.Kitazawa T., Kajiwara T., Kiuchi A., Hatakeyama H., Taneike T.: Muscle layerand region-dependent distributions of oxytocin receptors in the porcine myometrium. Peptides 2001, 22, 963-974.
  • 13.Kurowicka B., Franczak A., Oponowicz A., Kotwica G.: In vitro contractile activity of porcine myometrium during luteolysis and early pregnancy: effect of oxytocin and progesterone. Reprod. Biol. 2005, 5, 151-169.
  • 14.Langendijk P., Soede N. M., Kemp B.: Uterine activity, sperm transport, and the role of boar stimuli around insemination in sows. Theriogenology 2005, 63, 500-513.
  • 15.Moore L. K., Burt J. M.: Gap junction function in vascular smooth muscle: influence of serotonin. Am. J. Physiol. 1995, 269, 1481-1489.
  • 16.Risek B., Klier G., Phillips A., Hahn D. W., Gilula N. B.: Gap junction regulation in the uterus and ovaries in immature rat by oestrogen and progesterone. J. Cell Sci. 1995, 108, 1017-1032.
  • 17.Saez J. C., Berthoud V. M., Branes M. C., Martinez A. D., Beyer E. C.: Plasma membrane channels formed by connexins: their regulation and functions. Physiol. Rev. 2003, 83, 1359-1400.
  • 18.Thilander G., King G. J., Garfield R. E.: Connexin43 and gap junction content in the porcine myometrium during the estrous cycle. Theriogenology 1993, 40, 323-332.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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