Okajima F - Search Results

1

Receptor cross-talk can optimize assays for autoantibodies to the thyrotropin receptor: effect of phenylisopropyladenosine on adenosine 3',5'-monophosphate and inositol phosphate levels in rat FRTL-5 thyroid cells.

Hidaka A, Okajima F, Ban T, Kosugi S, Kondo Y, Kohn LD. Hidaka A, et al. Among authors: okajima f. J Clin Endocrinol Metab. 1993 Nov;77(5):1164-9. doi: 10.1210/jcem.77.5.8077307. J Clin Endocrinol Metab. 1993. PMID: 8077307

2

Inhibition by islet-activating protein, pertussis toxin, of P2-purinergic receptor-mediated iodide efflux and phosphoinositide turnover in FRTL-5 cells.

Okajima F, Sho K, Kondo Y. Okajima F, et al. Endocrinology. 1988 Aug;123(2):1035-43. doi: 10.1210/endo-123-2-1035. Endocrinology. 1988. PMID: 2840260

3

Thyrotropin-induced hydrogen peroxide production in FRTL-5 thyroid cells is mediated not by adenosine 3',5'-monophosphate, but by Ca2+ signaling followed by phospholipase-A2 activation and potentiated by an adenosine derivative.

Kimura T, Okajima F, Sho K, Kobayashi I, Kondo Y. Kimura T, et al. Among authors: okajima f. Endocrinology. 1995 Jan;136(1):116-23. doi: 10.1210/endo.136.1.7828520. Endocrinology. 1995. PMID: 7828520

4

Mutation of alanine 623 in the third cytoplasmic loop of the rat thyrotropin (TSH) receptor results in a loss in the phosphoinositide but not cAMP signal induced by TSH and receptor autoantibodies.

Kosugi S, Okajima F, Ban T, Hidaka A, Shenker A, Kohn LD. Kosugi S, et al. Among authors: okajima f. J Biol Chem. 1992 Dec 5;267(34):24153-6. J Biol Chem. 1992. PMID: 1332945 Free article.

5

Substitutions of different regions of the third cytoplasmic loop of the thyrotropin (TSH) receptor have selective effects on constitutive, TSH-, and TSH receptor autoantibody-stimulated phosphoinositide and 3',5'-cyclic adenosine monophosphate signal generation.

Kosugi S, Okajima F, Ban T, Hidaka A, Shenker A, Kohn LD. Kosugi S, et al. Among authors: okajima f. Mol Endocrinol. 1993 Aug;7(8):1009-20. doi: 10.1210/mend.7.8.7901757. Mol Endocrinol. 1993. PMID: 7901757

6

Thyroid-specific expression and cyclic adenosine 3',5'-monophosphate autoregulation of the thyrotropin receptor gene involves thyroid transcription factor-1.

Shimura H, Okajima F, Ikuyama S, Shimura Y, Kimura S, Saji M, Kohn LD. Shimura H, et al. Among authors: okajima f. Mol Endocrinol. 1994 Aug;8(8):1049-69. doi: 10.1210/mend.8.8.7997232. Mol Endocrinol. 1994. PMID: 7997232

7

Reciprocal modulation of thyrotropin actions by P1-purinergic agonists in FRTL-5 thyroid cells. Inhibition of cAMP pathway and stimulation of phospholipase C-Ca2+ pathway.

Sho KM, Okajima F, Abdul Majid M, Kondo Y. Sho KM, et al. Among authors: okajima f. J Biol Chem. 1991 Jul 5;266(19):12180-4. J Biol Chem. 1991. PMID: 1648085 Free article.

8

P2-purinergic activation of phosphoinositide turnover is potentiated by A1-receptor stimulation in thyroid cells.

Nazarea M, Okajima F, Kondo Y. Nazarea M, et al. Among authors: okajima f. Eur J Pharmacol. 1991 Jan 25;206(1):47-52. doi: 10.1016/0922-4106(91)90145-8. Eur J Pharmacol. 1991. PMID: 1648495

9

Inhibition of atrial natriuretic peptide-induced cGMP accumulation by purinergic agonists in FRTL-5 thyroid cells. Involvement of both pertussis toxin-sensitive and insensitive mechanisms.

Okajima F, Kondo Y. Okajima F, et al. J Biol Chem. 1990 Dec 15;265(35):21741-8. J Biol Chem. 1990. PMID: 2174885 Free article.

10

Requirement of insulin growth factor I plus hydrocortisone for the regeneration of thyrotropin (TSH)-dependent mechanism of I-efflux and Ca2+ mobilization in FRTL-5 cells during TSH depletion.

Sho K, Okajima F, Akiyama H, Shoda Y, Kobayashi I, Kondo Y. Sho K, et al. Among authors: okajima f. Endocrinology. 1989 Feb;124(2):598-604. doi: 10.1210/endo-124-2-598. Endocrinology. 1989. PMID: 2536314

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