Summary
The involvement of calcium signalling during chemotaxis in Dictyostelium discoideum is well documented. Spatiotemporal increases of intracellular calcium ([Ca2+]i) have been observed within seconds of stimulation with the chemoattractants folic acid and cAMP. This rise in [Ca2+]i localises to the rear cortex of the cell (J. Cell Sci. 109:2673–2678, 1996) and has been found to be not essential for chemotaxis, but likely to be involved in fine tuning of chemotactic responses (EMBO J. 19:4846–4854, 2000). Measurements of cytosolic Ca2+ ([Ca2+]c) responses have involved the use of different Ca2+ probes including ectopically expressed aequorin (a Ca2+-sensitive photoprotein), the fluorescent dye fura-2-dextran and the radioisotope 45Ca2+. The aequorin method (J. Cell Sci. 110:2845–2853, 1997) offers nonperturbing, real-time measurement of cytosolic free Ca2+ in suspensions of cells, but the low levels of light emission preclude measurements on individual cells. Fura-2 imaging (Cell Calcium 22:65–74, 1997; Eur. J. Cell Biol. 58:172–181, 1992; Biochem. J. 332:541–548, 1998; BMC Cell Biol. 6:13, 2005) has the advantage of allowing Ca2+ responses to be observed in individual cells so that the subcellular localisation of the response and differences amongst individual cells can be observed. However data collection is more labour intensive, much smaller numbers of cells are sampled, the cells are unavoidably damaged physically during loading and the time resolution (s) is much less than that provided by the aequorin method (ms). 45Ca2+ uptake assays (Cell Biol. Int. Rep. 2:71–79, 1978; J. Cell Biol. 112:103–110, 1991) allow measurement of Ca2+ influx from the medium by cell suspensions with a time resolution of the order of seconds. Radioactive Ca2+ uptake measurements are unsullied by but equally do not provide information about Ca2+ efflux, intracellular Ca2+ release or sequestration or changes in cytosolic free Ca2+ levels.
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References
Yumura, S., Furuya, K., and Takeuchi, I. (1996) Intracellular free calcium responses during chemotaxis of Dictyostelium cells. J. Cell Sci. 109, 2673–2678.
Traynor, D., Milne, J. L. S., Insall, R. H., and Kay, R. R. (2000) Ca2+ signalling is not required for chemotaxis in Dictyostelium. EMBO J. 19, 4846–4854.
Nebl, T., and Fisher, P. R. (1997) Intracellular Ca2+ signals in Dictyostelium chemotaxis are mediated exclusively by Ca2+ influx. J. Cell Sci. 110, 2845–2853.
Sonnemann, J., Knoll, G., and Schlatterer, C. (1997) cAMP-induced changes in cytosolic free Ca2+ concentration are light sensitive. Cell Calcium 22, 65–74.
Schlatterer, C., Knoll, G., and Malchow, D. (1992) Intracellular calcium during chemotaxis of Dictyostelium discoideum - a new fura-2 derivative avoids sequestration of the indicator and allows long-term calcium measurements. Eur. J. Cell Biol. 58, 172–181.
Schaloske, R., Sonnemann, J., Malchow, D., and Schlatterer, C. (1998). Fatty acids induce release of Ca2+ from acidosomal stores and activate capacitative Ca2+ entry in Dictyostelium discoideum. Biochem. J. 332, 541–548.
Schaloske, R. H., Lusche, D. F., Bezares-Roder, K., Happle, K., Malchow, D., and Schlatterer, C. (2005) Ca2+ regulation in the absence of the iplA gene product in Dictyostelium discoideum. BMC Cell Biol. 6, 13.
Wick, U., Malchow, D., and Gerisch, G. (1978). Cyclic-AMP stimulated calcium influx into aggregating cells of Dictyostelium discoideum. Cell Biol. Int. Rep. 2, 71–79.
Milne, J. L., and Coukell, M. B. (1991) A Ca2+ transport system associated with the plasma membrane of Dictyostelium discoideum is activated by different chemoattractant receptors. J. Cell Biol. 112, 103–110.
Saxe, C. L. R., Johnson, R., Devreotes, P. N., and Kimmel, A. R. (1991) Multiple genes for cell surface cAMP receptors in Dictyostelium discoideum. Dev. Genet. 12, 6–13.
Mato, J. M., Van Haastert, P. J. M., Krens, F. A., Rhijnsburger, E. H., Dobbe, F. C. P. M., and Konijn, T. M. (1977) Cyclic AMP and folic acid stimulated cyclic GMP accumulation in Dictyostelium discoideum. FEBS Lett. 79, 331–336.
Europe-Finner, G. N., and Newell, P. C. (1987) Cyclic AMP stimulates accumulation of inositol trisphosphate in Dictyostelium discoideum. J. Cell Sci. 87, 41–51.
Van Haastert, P. J. M., de Vries, M. J., Penning, L. C., Roovers, E., van der Kaay, J., Erneux, C., et al. (1989) Chemoattractant and guanosine 5′[γ-thio]-triphosphate induce the accumulation of inositol 1,4,5-trisphosphate in Dictyostelium cells that are labelled with [3H]inositol by electroporation. Biochem. J. 258, 577–586.
Bumann, J., Malchow, D., and Wurster, B. (1984) Attractant induced changes and oscillations of the extracellular Ca2+ concentration in suspensions of differentiating Dictyostelium cells. J. Cell Biol. 98, 173–178.
Menz, S., Bumann, J., Jaworski, E., and Malchow, D. (1991) Mutant analysis suggests that cyclic GMP mediates the cyclic AMP-induced calcium ion uptake in Dictyostelium. J. Cell Sci. 99, 187–192.
Malchow, D., Lusche, D. F., De Lozanne, A., and Schlatterer, C. (2008) A fast Ca2+-induced Ca2+-release mechanism in Dictyostelium discoideum. Cell Calcium 43, 521–530.
Wilczynska, Z., Happle, K., Müller-Taubenberger, A., Schlatterer, C., Malchow, D., and Fisher, P. R. (2005) Release of Ca2+ from the endoplasmic reticulum contributes to Ca2+ signalling in Dictyostelium. Eukaryotic Cell 4, 1513–1525.
Böhme, R., Bumann, J., Aeckerle, S., and Malchow, D. (1987) A high affinity plasma membrane Ca2+-ATPase in Dictyostelium discoideum: its relation to cAMP induced Ca2+ fluxes. Biochim. Biophys. Acta 904, 125–130.
Rooney, E. K., Gross, J. D., and Satre, M. (1994) Characterisation of an intracellular Ca2+ pump in Dictyostelium. Cell Calcium 16, 509–522.
Milne, J. L., and Devreotes, P. N. (1993) The surface cyclic AMP receptors, cAR1, cAR2, and cAR3, promote Ca2+ influx in Dictyostelium discoideum by a Gα2-independent mechanism. Mol. Biol. Cell 4, 283–292.
Nebl, T., Kotsifas, M., Schaap, P., and Fisher, P. R. (2002) Multiple signalling pathways connect chemoattractant receptors and calcium channels in Dictyostelium. J. Muscle Res. Cell Motil. 23, 853–865.
Abe, T., Maeda, Y., and Iijima, T. (1988) Transient increase or the intracellular Ca2+ concentration during chemotactic signal transduction in Dictyostelium discoideum cells. Differentiation 39, 90–96.
Yumura, S., Matsuzaki, R., and Kitanishi-Yumura, T. (1995) Introduction of macromolecules into living Dictyostelium cells by electroporation. Cell Struct. Funct. 20, 185–190.
Schlatterer, C., Gollnick, F., Schmidt, E., Meyer, R., and Knoll, G. (1994) Challenge with high concentrations of cyclic AMP induces transient changes in the cytosolic free calcium concentration in Dictyostelium discoideum. J. Cell Sci. 107, 2107–2115.
Saran, S., Nakao, H., Tasaka, M., Iida, H., Tsuji, F. I., Nanjundiah, V., et al. (1994) Intracellular free calcium level and its response to cAMP stimulation in developing Dictyostelium cells transformed with jellyfish aequorin cDNA. FEBS Lett. 337, 43–47.
Shimomura, O., Musicki, B., and Kishi, Y. (1989) Semi-synthetic aequorins with improved sensitivity to calcium ions. Biochem. J. 261, 913–920.
Knight, M. R., Campbell, A. K., Smith, S. M., and Trewavas, A. J. (1991) Transgenic plant aequorin reports the effects of touch and cold-shock and elicitors on cytoplasmic calcium. Nature 352, 524–526.
Nellen, W., Silan, C., and Firtel, R. A. (1984) DNA-mediated transformation in Dictyostelium discoideum: regulated expression of an actin gene fusion. Mol. Cell Biol. 4, 2890–2898.
Knecht, D., and Pang, K. M. (1995) Electroporation of Dictyostelium discoideum. Methods Mol. Biol. 47, 321–330.
Wilczynska, Z., and Fisher, P. R. (1994) Analysis of a complex plasmid insertion in a phototaxis-deficient transformant of Dictyostelium discoideum selected on a Micrococcus luteus lawn. Plasmid 32, 182–194.
Coukell, M. B., and Cameron, A. M. (1987) Effects of calcium antagonists on cyclic AMP phosphodiesterase induction in Dictyostelium discoideum. J. Cell Sci. 88, 379–388.
Veltman, D. M., De Boer, J. S., and Van Haastert, P. J. M. (2003) Chemoattractant-stimulated calcium influx in Dictyostelium discoideum does not depend on cGMP. Biochim. Biophys. Acta 1623, 129–134.
Becker, R. A., Chambers, J., and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole, Pacific Grove, CA.
Nebl, T. (2000) Calcium signals during chemotaxis and differentiation of D. discoideum. PhD Thesis, La Trobe University.
Schlatterer, C., and Schaloske, R. (1996) Calmidazolium leads to an increase in the cytosolic Ca2+ concentration in Dictyostelium discoideum by induction of Ca2+ release from intracellular stores and influx of extracellular Ca2+. Biochem. J. 313, 661–667.
Ludlow, M. J., Traynor, D., Fisher, P. R., and Ennion, S. J. (2008) Purinergic-mediated Ca2+ influx in Dictyostelium discoideum. Cell Calcium 44, 567–579.
Acknowledgments
Claire Allan was a recipient of an Australian Postgraduate Research Award. We are grateful to the Thyne Reid Memorial Trusts for supporting this work.
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Allan, C.Y., Fisher, P.R. (2009). In Vivo Measurements of Cytosolic Calcium in Dictyostelium discoideum . In: Jin, T., Hereld, D. (eds) Chemotaxis. Methods in Molecular Biology™, vol 571. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-60761-198-1_20
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