[Electron-microscopic and immunohistochemical study of the reorganization of the microtubule system in granular cells of frog urinary bladder after water transport induction].
Structural changes in organization of the microtubule system in granular cells of frog urinary bladder after water transport induction by vasopressin were studied by methods of electron microscopy and immunocytochemistry. It is shown that in steady-state conditions microtubules form a wide network equally distributed in the whole cytoplasm of granular cells. After vasopressin action, the amount of microtubules increases in the apical region of the cytoplasm. A predominant orientation of microtubules, perpendicular to the apical membrane direction, appears. A structural association of microtubules with specific granules and large vacuoles was observed. A supposition is advanced about association of the described microtubule system reorganization with the activation of vectorial intracellular transport occurring after transepithelial water transport induction.
Gorshkov
A N
AN
Institute of Cytology, Russian Academy of Sciences, St. Petersburg.
Komissarchik
Ia Iu
IaIu
D000818:Animals; D001692:Biological Transport; D001834:Body Water / Q000378:metabolism*; D007150:Immunohistochemistry; D008854:Microscopy, Electron; D008870:Microtubules / Q000378:metabolism* / Q000648:ultrastructure; D011896:Rana temporaria; D001743:Urinary Bladder / Q000166:cytology / Q000378:metabolism*
Elektronno-mikroskopicheskoe i immunotsitokhimicheskoe issledovanie reorganizatsii sistemy mikrotrubochek v granuliarnykh kletkakh mochevogo puzryia liagushki pri induktsii vodnogo transporta.