The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
A uniform extracellular stimulus triggers distinct cAMP signals in different compartments of a simple cell
Open accessAbstract
cAMP, the classical second messenger, regulates many diverse cellular functions. The primary effector of cAMP signals, protein kinase A, differentially phosphorylates hundreds of cellular targets. Little is known, however, about the spatial and temporal nature of cAMP signals and their information content. Thus, it is largely unclear how cAMP, in response to different stimuli, orchestrates such a wide variety of cellular responses. Previously, we presented evidence that cAMP is produced in subcellular compartments near the plasma membrane, and that diffusion of cAMP from these compartments to the bulk cytosol is hindered. Here we report that a uniform extracellular stimulus initiates distinct cAMP signals within different cellular compartments. By using cyclic nucleotide-gated ion channels engineered as cAMP biosensors, we found that prostaglandin E 1 stimulation of human embryonic kidney cells caused a transient increase in cAMP concentration near the membrane. Interestingly, in the same time frame, the total cellular cAMP rose to a steady level. The decline in cAMP levels near the membrane was prevented by pretreatment with phosphodiesterase inhibitors. These data demonstrate that spatially and temporally distinct cAMP signals can coexist within simple cells.
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Cites
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Cyclic AMP-specific PDE4 Phosphodiesterases as Critical Components of Cyclic AMP Signaling
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Organization and Ca2+Regulation of Adenylyl Cyclases in cAMP Microdomains
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Self-citationMongillo, M., McSorley, T., Evellin, S., Sood, A., Lissandron, V., Terrin, A., Huston, E., Hannawacker, A., Lohse, M. J., Pozzan, T., et al. (2004) · Circulation Research · doi:10.1161/01.res.0000134629.84732.11 · Cited by 384
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Metadata
- Authors
- Rich, T. C., Fagan, K. A., Tse, T. E., Schaack, J., Cooper, D. M. F., & Karpen, J. W.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2001-10-16
- Volume
- 98
- Issue
- 23
- Pages
- 13049-13054
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1977109399
- Cited by
- 276
- References
- 36
- FWCI
- 5.43
- Type
- journal article
- Language
- en
- Open access
- green
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- Rich, T. C., Fagan, K. A., Tse, T. E., Schaack, J., Cooper, D. M. F., & Karpen, J. W. (2001). A uniform extracellular stimulus triggers distinct cAMP signals in different compartments of a simple cell. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.221381398
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