1981
DOI: 10.1007/bf01959892
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Immunocytochemical localization of cyclic AMP inTetrahymena

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Cited by 12 publications
(6 citation statements)
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“…They also have membrane receptors 4±7 which can bind vertebrate hormones and transmit, through signal transduction systems, 8,9 the information provided by the hormone thereby provoking a response by the cell. 10,11 A number of hormones (including insulin, ACTH, relaxin, endothelin, histamine, serotonin) have been found in Tetrahymena.…”
Section: ±3mentioning
confidence: 99%
“…They also have membrane receptors 4±7 which can bind vertebrate hormones and transmit, through signal transduction systems, 8,9 the information provided by the hormone thereby provoking a response by the cell. 10,11 A number of hormones (including insulin, ACTH, relaxin, endothelin, histamine, serotonin) have been found in Tetrahymena.…”
Section: ±3mentioning
confidence: 99%
“…Later, it was also demonstrated that the cells memorize their first encounter with the hormone (hormonal imprinting) and this memory influences their binding capacity and reaction to the hormone, even after hundreds of generations (Csaba, 1980(Csaba, , 1985(Csaba, , 2000. On the basis of these observations, it was also clear that immunologically (and functionally) demonstrable hormones and hormone-like molecules of higher ranking animals such as insulin, ACTH, HCG, relaxin, endothelin, serotonin, histamine, interleukin 6, b-endorphin, and melatonin are present in Tetrahymena Kova´cs, 1999, 2000;K} o ohidai et al, 2000, 2003Lenard, 1992;LeRoith et al, 1980LeRoith et al, , 1982LeRoith et al, , 1983Roth et al, 1982), and that signal transduction systems characteristic of higher vertebrates (enzymes, second messengers) also occur in them (K} o ohidai et al, 1992;Kova´cs and Csaba, 1987, 1990, 1997Kuno et al, 1979).…”
Section: Introductionmentioning
confidence: 99%
“…[5][6][7][8][9][10][11][12][13][14][15][16] In parallel, signal transduction systems were also recognized. At first second messengers such as cyclic AMP and cGMP, calcium-calmodulin, inositol phosphates [17][18][19][20][21] were identified, but later, also signal pathways, which are very similar to those which work in the cells of higher ranked animals. 22,23 Finally, the functional and structural similarities of the protozoan and mammalian hormone receptors were demonstrated.…”
mentioning
confidence: 99%