ライフサイエンスコーパス: cADPR

1 cADPR also controls intracellular calcium release in the

2 cADPR can induce intracellular calcium release in an ino

3 cADPR had no significant impact on activity of single ca

4 cADPR modulates the circadian oscillator's transcription

5 -dependent pathways with heparin and 8-NH(2)-cADPR was required to block the mGluR-induced Ca(2+) rel

6 and there was no further attenuation by 8Br-cADPR.

7 ermeant cADPR antagonist, 8-bromo-cADPR (8Br-cADPR), on the [Ca2+]i responses to ACh, histamine and e

8 e cADP receptor inhibitor 8-bromo-cADPR (8Br-cADPR).

9 In cells preincubated with 100 microM 8Br-cADPR, the [Ca2+]i responses to ACh and ET-1 were signif

10 The effects of 8Br-cADPR were concentration dependent.

11 but not affected by U73122 [GenBank] or 8Br-cADPR.

12 In support of this notion, a cADPR antagonist abolished the NO-induced potentiation o

13 We found that a cADPR antagonist and a CD38 substrate analogue inhibited

14 alcium-release second messenger cyclic ADPR (cADPR), has no defined role as an intracellular signalli

15 inamide, ADP-ribose (ADPR), and cyclic ADPR (cADPR).

16 Although cADPR and NAADP are structurally and functionally differ

17 syntheses of established antagonists 8-amino-cADPR 2 and 8-bromo-cADPR 3.

18 re partially inhibited by heparin or 8-amino-cADPR alone, but eliminated by the presence of both, ind

19 th muscle, and the cADPR antagonist, 8-amino-cADPR, abolishes [Ca2+]i oscillations elicited by acetyl

20 investigated this possibility using 8-amino-cADPR, which has been found to antagonize the Ca2+-relea

21 Thapsigargin completely blocks IP(3) and cADPR responses and decreases but does not prevent the r

22 Simultaneous inhibition of both IP(3)- and cADPR-dependent pathways with heparin and 8-NH(2)-cADPR

23 in an increase in ADPR cyclase activity and cADPR levels, as well as elevated expression of ABA-resp

24 TRPM2 as a coincidence detector for ADPR and cADPR signaling and provide a functional context for cAD

25 Both 2'-P-cADPR and cADPR appear to act by a similar mechanism based on simi

26 s using pharmacologic inhibitors of CD38 and cADPR as well as mice deficient in Cd38 (Cd38(-/-)).

27 gh chemokine receptors that rely on CD38 and cADPR for activity, including mouse FPR1, CXCR4, and CCR

28 this study, we examined the role of CD38 and cADPR in acinar cell Ca(2+) signals and acinar injury du

29 We also show that CD38 and cADPR modulate calcium mobilization in chemokine-stimula

30 in response to the second messengers IP3 and cADPR (ER) or NAADP (acidic organelles).

31 Thapsigargin completely blocked IP3 and cADPR responses as well as NAADP-induced Ca2+ oscillatio

32 ion of both inositol trisphosphate (IP3) and cADPR evoke repetitive Ca2+ spiking [6], the cADPR antag

33 , indicating a requirement for both IP3- and cADPR-dependent Ca2+ release.

34 observations support generation of NAADP and cADPR by intracellular CD38, which contributes to effect

35 esting the possible involvement of NAADP and cADPR in neurotransmitter-elicited intracellular Ca2+ re

36 amily, catalyzes synthesis of both NAADP and cADPR in vitro However, it remains unclear whether this

37 c acinar cells have indicated that NAADP and cADPR receptors are essential for Ca2+ release.

38 t CD38(-/-) mouse hearts supported NAADP and cADPR synthesis.

39 or, their enzymatic functions toward NAD and cADPR homeostasis have evolved divergently.

40 m deprivation, ABA stimulates, in a PKA- and cADPR-dependent fashion, the mitogen-activated kinase ER

41 ) in Arabidopsis (Arabidopsis thaliana), and cADPR has been proposed to play a central role in signal

42 In animals, cADPR targets the ryanodine receptor present in the sarc

43 y important roles in signal transduction, as cADPR regulates calcium release from intracellular store

44 DPR antagonist 8-NH2-cADPR [7], which blocks cADPR-evoked but not IP3-evoked Ca2+ spiking, can abolis

45 Both cADPR and ADPR are calcium messengers that can mobilize

46 N1-cIDPR 2, 6-thio N1-cIDPR antagonizes both cADPR- and N1-cIDPR-induced Ca(2+) release but possesses

47 inamide (20 mM) or the cADPR antagonist 8-Br-cADPR (30 muM) abrogated TLCS-induced Ca(2+) signals and

48 of TRPM2, whereas the cADPR antagonist 8-Br-cADPR exhibits the reverse block specificity.

49 clic adenosine diphosphoribosyl ribose (8-Br-cADPR), an antagonist of cADPR.

50 TGF-beta1, whereas the cADPR antagonist 8-Br-cADPR, Ca(2+) chelation, and antagonism of L-type Ca(2+)

51 sts and can be completely suppressed by 8-Br-cADPR, which suggests that cADPR and NAADP share a commo

52 The 8-Br-cADPR-an antagonist of cADPR-binds only to the MHR1/2 do

53 membrane-permeant cADPR antagonist, 8-bromo-cADPR (8Br-cADPR), on the [Ca2+]i responses to ACh, hist

54 k] or by the cADP receptor inhibitor 8-bromo-cADPR (8Br-cADPR).

55 shed antagonists 8-amino-cADPR 2 and 8-bromo-cADPR 3.

56 The cADPR antagonist 8-bromo-cADPR attenuated the Ca2+ responses to the agonists in c

57 Most importantly, we showed that 8-bromo-cADPR blocks HPV induced by alveolar hypoxia in the vent

58 membrane-permeant cADPR antagonist, 8-bromo-cADPR, blocked sustained HPV by blocking Ca(2+) release

59 P is potentiated by IP(3) but antagonized by cADPR.

60 tion of cADPR to ADP-ribose was catalyzed by cADPR hydrolase, which was found to be predominantly ass

61 opsis are similarly up- and downregulated by cADPR and contributed to the identification of new ABA-r

62 ated rats, the rate of cADPR inactivation by cADPR hydrolase and the activity of NADase was increased

63 that HPV is both triggered and maintained by cADPR in the rat lung in situ.

64 expression in target cells, are mediated by cADPR-Ca2+ release pathway.

65 f the chemoattractant receptors regulated by cADPR bind to ligands that are associated with clinical

66 Potentiation of Ca(2+) release by cADPR is mediated by increased accumulation of Ca(2+) in

67 ere any significant effects on the rhythm by cADPR overexpression, thus raising questions about the c

68 (cADPR) or photolysis of NPE-cADPR ('caged' cADPR) by ultraviolet laser pulses produced transient ac

69 N1-cIDPR inhibits CD38-catalyzed cADPR hydrolysis with an IC(50) of 0.26 mM.

70 tanding the complex interactions among CD14, cADPR, Ca(2+), and ROS may provide new insights and trea

71 IL-13-CD38-cADPR-dependent SAP sampling of food allergens was conse

72 The binary CD38-cADPR model described here represents the most detailed

73 s the first demonstration of a role for CD38-cADPR signaling in a model of inflammatory airway diseas

74 In summary, these data indicate that CD38-cADPR mediates bile acid-induced pancreatitis and acinar

75 the SI epithelium mediated by the IL-13/CD38/cADPR pathway, regulate the onset of FIA reactions, and

76 Blockade of IL-13-induced CD38/cADPR-dependent SAP antigen passaging in mice inhibited

77 In airway smooth muscle, the CD38/cADPR signaling pathway is involved in [Ca2+]i responses

78 Thus, the NO-cGMP-cADPR-Ca2+ pathway, previously described in sea urchin e

79 e first example of a fluorescent N1-cyclized cADPR analogue and is a new pharmacological tool for int

80 of macrophages with the cADPR analog 3-deaza-cADPR or Ca(2+) ionophores recapitulated the effects of

81 ed with the non-metabolizable analog 3-deaza-cADPR, and cytosolic [Ca(2+)] was transiently elevated b

82 cADPR[CH(2)] was 856 nM and that for 3-deaza-cADPR[CH(2)] was 300 nM, about 15- and 5-fold less poten

83 osphonate cyclic 3-deaza-ADP-ribose (3-deaza-cADPR[CH(2)]) showed full agonist activity for release o

84 O-methyl-2'-deoxy-cADPR 9, 8-phenyl-2'-deoxy-cADPR 10 and its ribose counterpart 8-phenyl-cADPR 5 are

85 concentrations, among which 8-bromo-2'-deoxy-cADPR 7 was, unexpectedly, a weak but almost full agonis

86 -cADPR analogues, including 8-bromo-2'-deoxy-cADPR 7, 8-amino-2'-deoxy-cADPR 8, 8- O-methyl-2'-deoxy-

87 g 8-bromo-2'-deoxy-cADPR 7, 8-amino-2'-deoxy-cADPR 8, 8- O-methyl-2'-deoxy-cADPR 9, 8-phenyl-2'-deoxy

88 amino-2'-deoxy-cADPR 8, 8- O-methyl-2'-deoxy-cADPR 9, 8-phenyl-2'-deoxy-cADPR 10 and its ribose count

89 ic syntheses of novel 8-substituted 2'-deoxy-cADPR analogues, including 8-bromo-2'-deoxy-cADPR 7, 8-a

90 ctivate PR-1 expression via an NO-dependent, cADPR-independent pathway.

91 bolites cyclic adenosine 5'-diphosphoribose (cADPR) and ADPR were also present in the superfusates co

92 e identify cyclic adenosine diphosphoribose (cADPR) as an agonist of TRPM2 with dual activity: at con

93 ication of cyclic adenosine diphosphoribose (cADPR) or photolysis of NPE-cADPR ('caged' cADPR) by ult

94 of NAD+ to cyclic adenosine diphosphoribose (cADPR), a Ca2+-mobilizing second messenger, adenosine di

95 es reveals a loss of specific binding during cADPR, but not IP(3), desensitization.

96 rovide insights into the design of effective cADPR analogs.

97 of effect of postsynaptic infusion of either cADPR antagonist indicates a probable presynaptic site o

98 antly more sensitive to NAADP than to either cADPR or InsP3, whereas higher concentrations of NAADP s

99 nsistent with the hypothesis that endogenous cADPR plays an important role during normal contraction

100 38, Thr-221 to Phe, correspondingly enhanced cADPR production, and the double mutation, Thr-221 to Ph

101 The EC(50) for cADPR[CH(2)] was 856 nM and that for 3-deaza-cADPR[CH(2)

102 nt of the RyR complex and a key cofactor for cADPR activity, during RyR/cADPR desensitization.

103 gnaling and provide a functional context for cADPR as a second messenger for Ca2+ influx.

104 The ratio of methanolysis to hydrolysis for cADPR and NAD+ catalyzed by CD38 increases linearly with

105 confirming our previously proposed model for cADPR catalysis.

106 t the activity of the enzyme responsible for cADPR synthesis, ADP-ribosyl (ADPR) cyclase, is rapidly

107 monstrate a potential physiological role for cADPR in modulating cellular Ca(2+) signals via changes

108 ting either that there is a unique route for cADPR synthesis or that a homolog of ADPR cyclase with l

109 (NAD) to cyclic ADP-ribose (cADPR) and from cADPR to ADP-ribose (ADPR).

110 Thus, ADPRC can only generate cADPR from NAD (cyclase), whereas CD38, in contrast, has

111 In addition to NAD, CD38 also hydrolyzed cADPR effectively, and this activity was correspondingly

112 capable of both synthesizing and hydrolyzing cADPR.

113 n contrast, has multiple activities, i.e. in cADPR production and degradation, as well as NAD hydroly

114 the abi1-1 mutation and that an increase in cADPR plays an important role in downstream molecular an

115 hat is activated by nitric oxide to increase cADPR and mobilize Ca(2.)

116 hat biochemical production of cGMP increases cADPR concentration in hippocampal slices in vitro, and

117 e complexities of Ca(2+) signaling involving cADPR, for example, localized release events and propaga

118 intracellular glucose on the ability of IP3, cADPR and CCK to induce cytosolic Ca2+ spikes in pancrea

119 t blockade of cGMP-dependent protein kinase, cADPR receptors, or ryanodine-sensitive Ca2+ stores each

120 e for the development of tools to manipulate cADPR metabolism in vivo.

121 IDPR and 8-NH2-L-cIDPR inhibit CD38-mediated cADPR hydrolysis (IC50 7 muM and 21 microM respectively)

122 generates the calcium-mobilizing metabolite cADPR, make reduced T cell-dependent antibody responses.

123 ctivity: at concentrations above 100 microM, cADPR can gate the channel by itself, whereas lower conc

124 is thus identified as the first C-6 modified cADPR (cyclic adenosine 5'-diphosphoribose) analogue ant

125 blocked the Ca2+-releasing effects of NAADP, cADPR, and caffeine, but not IP3.

126 Exogenous beta-NAD, cADPR, and ADPR (all 100 nm) reduced the release of NE i

127 utive and nerve-evoked overflow of beta-NAD, cADPR, and ADPR in vascular and non-vascular smooth musc

128 Ca2+ spiking [6], the cADPR antagonist 8-NH2-cADPR [7], which blocks cADPR-evoked but not IP3-evoked

129 ular glucose, but the cADPR antagonist 8-NH2-cADPR blocked CCK-evoked Ca2+ spiking only in the absenc

130 te (AMP) specifically inhibits ADPR, but not cADPR-mediated gating of TRPM2, whereas the cADPR antago

131 diphosphoribose (cADPR) or photolysis of NPE-cADPR ('caged' cADPR) by ultraviolet laser pulses produc

132 effect on the Ca (2+)-mobilizing ability of cADPR itself, is an important motif for the antagonistic

133 t study, we directly examined the ability of cADPR to trigger SR Ca2+ release and to modulate Ca(2+)-

134 ession and the consequential accumulation of cADPR play a causal role in mediating cellular different

135 with CD38 expression was the accumulation of cADPR, and both time courses preceded the onset of diffe

136 Despite evidence for the action of cADPR in Arabidopsis, no predicted proteins with signifi

137 research, the precise mechanism of action of cADPR remains uncertain, and experimental findings are c

138 they did not arise through direct actions of cADPR or Ca(2+) on the IP(3)R, but likely resulted from

139 (NAD glycohydrolase), but a trace amount of cADPR is also produced through cyclization of the substr

140 is unable to produce significant amounts of cADPR (<0.02% of reaction products) using NAD(+) as the

141 assay experiments showed that the amounts of cADPR in Arabidopsis thaliana plants increased in respon

142 is study, a novel non-hydrolyzable analog of cADPR, N1-cIDPR (N1-cyclic inosine diphosphate ribose),

143 The 8-Br-cADPR-an antagonist of cADPR-binds only to the MHR1/2 domain and inhibits TRPM2

144 ibosyl ribose (8-Br-cADPR), an antagonist of cADPR.

145 The effects of antagonists of cADPR signaling, manipulation of cADPR synthesis, and ma

146 The results indicate that the binding of cADPR or cGDPR to the active site induces structural rea

147 controlling the endogenous concentrations of cADPR and NAADP.

148 The production and degradation of cADPR are catalyzed by a family of related enzymes, incl

149 The degradation of cADPR to ADP-ribose was catalyzed by cADPR hydrolase, wh

150 t catalyzes the synthesis and degradation of cADPR.

151 mutation and ABI1 likely acts downstream of cADPR in the ABA-signaling pathway.

152 to antagonize the Ca2+-releasing effects of cADPR on sea urchin egg microsomes and in mammalian cell

153 dulator activity of the metabolic enzymes of cADPR is illustrated.

154 , suggesting that it is the N6-imino form of cADPR that is hydrolyzed by CD38.

155 n at 37 degrees C and measuring formation of cADPR by bioassay and by HPLC.

156 dition of exogenous ABA induced formation of cADPR in T. gondii, stimulated calcium-dependent protein

157 ne of nucleotide cyclization in formation of cADPR to a base-exchange reaction in the generation of N

158 cription of the CD38-catalyzed hydrolysis of cADPR at atomic resolution.

159 bose (cADPR) from NAD+ and the hydrolysis of cADPR to ADP-ribose.

160 processes in the synthesis and hydrolysis of cADPR.

161 l determinants involved in the hydrolysis of cADPR.

162 e with a butyl chain generates inhibitors of cADPR hydrolysis by the human ADP-ribosyl cyclase CD38 c

163 the "northern" ribose in the interaction of cADPR with CD38.

164 athematical simulation of the interaction of cADPR with the circadian clock indicate that cADPR forms

165 The endogenous levels of cADPR in mammalian tissues are primarily controlled by C

166 agonists of cADPR signaling, manipulation of cADPR synthesis, and mathematical simulation of the inte

167 To elucidate the mechanism of cADPR action, we performed confocal Ca(2+) imaging in sa

168 n, provide new insight into the mechanism of cADPR hydrolysis by CD38, and may aid future inhibitor d

169 ssays were used to measure the metabolism of cADPR in sea urchin egg homogenates including a radioimm

170 only in catalysis but also in positioning of cADPR at the catalytic site through strong hydrogen bond

171 the CD157- and CD38-dependent production of cADPR.

172 e extracts from E2-treated rats, the rate of cADPR inactivation by cADPR hydrolase and the activity o

173 ontrast, we found that there is no rhythm of cADPR levels nor are there any significant effects on th

174 the natural "northern" N1-linked D-ribose of cADPR was replaced by L-ribose.

175 We now report on the role of cADPR in HPV in isolated rat pulmonary arteries and in t

176 Although the role of cADPR in modulating calcium mobilization has been extens

177 egulation of CD38 expression and the role of cADPR-mediated Ca2+ release in airway inflammation.

178 were not, suggesting agonist specificity of cADPR signaling.

179 r results suggest that the primary target of cADPR is the SR Ca(2+) uptake mechanism.

180 s by mechanisms dependent on RyR, but not on cADPR signaling.

181 ; the ryanodine receptors by either NAADP or cADPR, and the IP3 receptors by IP3.

182 nhibit the Ca2+ release elicited by NAADP or cADPR.

183 ependent of inositol 1,4, 5-trisphosphate or cADPR since antagonists of either of these two messenger

184 Both 2'-P-cADPR and cADPR appear to act by a similar mechanism bas

185 that are associated with clinical pathology, cADPR and CD38 represent novel drug targets with potenti

186 xamined the effects of the membrane-permeant cADPR antagonist, 8-bromo-cADPR (8Br-cADPR), on the [Ca2

187 ed pulmonary arteries, the membrane-permeant cADPR antagonist, 8-bromo-cADPR, blocked sustained HPV b

188 cADPR 10 and its ribose counterpart 8-phenyl-cADPR 5 are reported, including improved syntheses of es

189 tch pipette/intracellular solution prevented cADPR from evoking Ca2+ spiking.

190 8 to catalyze an enzyme reaction and produce cADPR, ADPR, and/or nicotinamide.

191 identified and both cyclized NAD to produce cADPR.

192 use NAD as a substrate, the cyclase produces cADPR, whereas CD38 produces mainly ADP-ribose (ADPR).

193 Mutating Phe-174 indeed reduced cADPR production but enhanced ADPR production, convertin

194 n ADP-ribosyl cyclase inhibitor that reduces cADPR and NAADP synthesis in mouse membrane fractions, w

195 Cyclic ADP ribose (cADPR) has been shown to trigger Ca2+ release from intra

196 Cyclic ADP ribose (cADPR) is a Ca(2+)-mobilizing intracellular second messe

197 Cyclic ADP ribose (cADPR) is a calcium-mobilizing metabolite that regulates

198 n of the second-messenger cyclic ADP ribose (cADPR), which controls release of intracellular calcium

199 aling molecules, cGMP and cyclic ADP ribose (cADPR), which function downstream of NO in animals, also

200 ncing regulation, and for cyclic ADP ribose (cADPR)-dependent Ca(2+) signaling.

201 ies in part by increasing cyclic ADP-ribose (cADPR) accumulation in the smooth muscle and, thereby, C

202 l trisphosphate (IP3) and cyclic ADP-ribose (cADPR) all mobilized Ca2+ from internal stores but only

203 yR), the second messenger cyclic ADP-ribose (cADPR) also accelerates the activity of SERCA pumps, whi

204 talyzes the production of cyclic ADP-ribose (cADPR) and ADP-ribose (ADPR) from its substrate, NAD(+).

205 ine dinucleotide (NAD) to cyclic ADP-ribose (cADPR) and from cADPR to ADP-ribose (ADPR).

206 Cyclic ADP-ribose (cADPR) and hydrogen peroxide (H2O2) can facilitate ADPR-

207 ilizing second messengers cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate

208 ng two Ca(2+) messengers, cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate

209 of two Ca(2+) messengers, cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate

210 Cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate

211 NAD(+) acts partially via cyclic ADP-ribose (cADPR) and subsequent release of Ca(2+).

212 ide phosphate (NAADP) and cyclic ADP-ribose (cADPR) are Ca(2+)-mobilizing messengers important for mo

213 viously demonstrated that cyclic ADP-ribose (cADPR) elicits Ca2+ release in airway smooth muscle (ASM

214 talyzing the synthesis of cyclic ADP-ribose (cADPR) from NAD+ and the hydrolysis of cADPR to ADP-ribo

215 Cyclic ADP-ribose (cADPR) has recently been proposed as an endogenous activ

216 Analogues of cyclic ADP-ribose (cADPR) incorporating a methylenebisphosphonate linkage i

217 Cyclic ADP-ribose (cADPR) induces intracellular Ca2+ ([Ca2+]i) release in a

218 Cyclic ADP-ribose (cADPR) is a Ca(2+)-mobilizing cyclic nucleotide derived

219 Cyclic ADP-ribose (cADPR) is a calcium mobilization messenger important for

220 Cyclic ADP-ribose (cADPR) is a potentially important intracellular Ca2+ rel

221 Cyclic ADP-ribose (cADPR) is a universal calcium messenger molecule that re

222 eptor (RyR) activation by cyclic ADP-ribose (cADPR) is followed by homologous desensitization.

223 ded for antagonism at the cyclic ADP-ribose (cADPR) receptor are unclear.

224 -ribose, an antagonist of cyclic ADP-ribose (cADPR) signaling at RyR (S2/S1=0.48+/-0.13).

225 Cyclic ADP-ribose (cADPR) was identified as a signaling molecule in the ABA

226 Cyclic ADP-ribose (cADPR) was previously shown to activate transient expres

227 nthesis and hydrolysis of cyclic ADP-ribose (cADPR), a Ca(2+) messenger molecule responsible for regu

228 ponsible for metabolizing cyclic ADP-ribose (cADPR), a Ca(2+) messenger.

229 2-GUS in response to ABA, cyclic ADP-ribose (cADPR), and Ca2+.

230 bilizing second messenger cyclic ADP-ribose (cADPR), CD157, a sister protein of CD38, has been consid

231 es that produce peroxide, cyclic ADP-ribose (cADPR), nicotinamide adenine dinucleotide phosphate (NAA

232 Ca2+-releasing messenger, cyclic ADP-ribose (cADPR), which activates ryanodine receptors, has so far

233 cleotide second messenger cyclic ADP-ribose (cADPR), which is generated by an ectoenzyme ADP-ribosyl

234 ving the second messenger cyclic ADP-ribose (cADPR).

235 5-trisphosphate (IP3) and cyclic ADP-ribose (cADPR).

236 ond messengers: IP(3) and cyclic ADP-ribose (cADPR).

237 Methylenebisphosphonate cyclic ADP-ribose (cADPR[CH(2)]) and methylenebisphosphonate cyclic 3-deaza

238 cADP-Ribose (cADPR) is a novel endogenous messenger that is believed

239 Cyclic adenosine 5'-diphosphate ribose (cADPR) analogs based on the cyclic inosine 5'-diphosphat

240 able cyclic adenosine 5'-diphosphate ribose (cADPR) analogues are chemical biology tools that can pro

241 agents: cyclic adenosine diphosphate ribose (cADPR) from nicotinamide adenine dinucleotide (NAD) and

242 ding cyclic adenosine 5'-diphosphate ribose (cADPR), and CD38 knockout studies have revealed the rele

243 bolite, cyclic adenosine diphosphate ribose (cADPR), from nicotinamide adenine dinucleotide (NAD(+)).

244 13-CD38-cyclic adenosine diphosphate ribose (cADPR)-dependent process.

245 ount of cyclic adenosine diphosphate ribose (cADPR).

246 olecule cyclic adenosine diphosphate ribose (cADPR).

247 olecule cyclic adenosine diphosphate ribose (cADPR).

248 of the cyclic adenosine diphosphate ribose (cADPR)/ryanodine-sensitive stores but not the inositol t

249 and cyclic adenosine 5'-diphosphate-ribose (cADPR) are established Ca2+-mobilizing messengers that a

250 3)) and cyclic adenosine diphosphate-ribose (cADPR) are second messengers that enhance neurosecretion

251 lin and cyclic adenosine diphosphate-ribose (cADPR).

252 lic adenosine dinucleotide phosphate ribose (cADPR) in regulating the latter have proven equivocal.

253 alcium messenger molecule, cyclic ADP-ribose(cADPR).

254 key cofactor for cADPR activity, during RyR/cADPR desensitization.

255 ein, most likely the RyR itself, mediate RyR/cADPR desensitization and resensitization, respectively.

256 From the substrate side, cADPR is found to change its conformation to fit into th

257 Since cADPR/ryanodine-sensitive stores are implicated in the C

258 he membrane permeant, hydrolytically stable, cADPR receptor agonist 8-Br-N1-cIDPR via regio- and ster

259 rved that all-trans-retinoic acid stimulates cADPR synthesis by ADP ribose cyclase (ADPR cyclase) in

260 )] i ) through PKA activation and subsequent cADPR generation.

261 ture-activity relationships of 8-substituted cADPR analogues in both Jurkat T-lymphocytes and sea urc

262 the antagonistic activities of 8-substituted cADPR analogues.

263 es reveal that both the enzyme and substrate cADPR undergo catalysis-associated conformational change

264 00 nM, about 15- and 5-fold less potent than cADPR, respectively.

265 hibition of the SR Ca(2+) with thapsigargin, cADPR failed to produce any increase in sparking activit

266 ated monocyte-induced RPE apoptosis and that cADPR contributes to these changes.

267 We conclude that cADPR and NAADP, in combination with ADPR, represent phy

268 Here, we provide evidence that cADPR-mediated signaling pathways play a key role in ind

269 In all cases, we found that cADPR modulates intracellular free calcium levels in cel

270 cADPR with the circadian clock indicate that cADPR forms a feedback loop within the plant circadian c

271 We previously reported that cADPR, produced by the ADP-ribosyl cyclase, CD38, contro

272 ited by acetylcholine (ACh), suggesting that cADPR is involved during muscarinic receptor activation.

273 ine monophosphate (AMP), which suggests that cADPR and NAADP lead to mobilization of endogenous ADPR

274 uppressed by 8-Br-cADPR, which suggests that cADPR and NAADP share a common binding site on TRPM2 tha

275 The cADPR antagonist 8-bromo-cADPR attenuated the Ca2+ respo

276 The cADPR hydrolase activity of the two mutants was similarl

277 cADPR evoke repetitive Ca2+ spiking [6], the cADPR antagonist 8-NH2-cADPR [7], which blocks cADPR-evo

278 y of all the mutants was plotted against the cADPR hydrolase activity.

279 ]i) release in airway smooth muscle, and the cADPR antagonist, 8-amino-cADPR, abolishes [Ca2+]i oscil

280 We previously demonstrated that CD38 and the cADPR generated by CD38 regulate calcium signaling in le

281 or absence of intracellular glucose, but the cADPR antagonist 8-NH2-cADPR blocked CCK-evoked Ca2+ spi

282 Similar to the membrane-bound cyclase, the cADPR hydrolase activity was also independent of cGMP.

283 pharmacological tool for intervention in the cADPR pathway of cellular signaling.

284 odine receptors was suggested to mediate the cADPR-dependent pathway, because ruthenium red, an antag

285 ment with either nicotinamide (20 mM) or the cADPR antagonist 8-Br-cADPR (30 muM) abrogated TLCS-indu

286 evoke Ca2+ spiking via either the IP3 or the cADPR pathway.

287 In addition, we show that the cADPR antagonist blocks the chemotaxis of human monocyte

288 We suggest that the cADPR signaling system plays an important role in the re

289 , inhibited the mGluR response only when the cADPR-dependent pathway was isolated by blocking the IP(

290 cADPR-mediated gating of TRPM2, whereas the cADPR antagonist 8-Br-cADPR exhibits the reverse block s

291 effects of NAD(+) on TGF-beta1, whereas the cADPR antagonist 8-Br-cADPR, Ca(2+) chelation, and antag

292 Whether the cADPR signaling pathway is common to agonists acting thr

293 Treatment of macrophages with the cADPR analog 3-deaza-cADPR or Ca(2+) ionophores recapitu

294 Thus, cADPR regulates calcium signaling of a discrete subset o

295 Exposure of the cells to cADPR resulted in a slow (>2 minutes) and steady increas

296 In this study, we examine whether cADPR is required for chemotaxis of human monocytes and

297 We have now investigated whether cADPR may play a signaling role in action of beta-estrad

298 ol for determining the pathway through which cADPR mediates Ca(2+) release.

299 nicotinamide riboside may allow animals with cADPR- and OT-forming deficits to overcome these deficit

300 e human CD38 enzymatic domain complexed with cADPR at 1.5-A resolution, with its analog, cyclic GDP-r

301 These effects were not evident with cADPR alone or following cytosolic Ca(2+) elevation alon