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Wang J, Wagner-Britz L, Bogdanova A, Ruppenthal S, Wiesen K, Kaiser E, Tian Q, Krause E, Bernhardt I, Lipp P, Philipp SE, Kaestner L. Morphologically homogeneous red blood cells present a heterogeneous response to hormonal stimulation. PLoS One 2013; 8:e67697. [PMID: 23840765 PMCID: PMC3695909 DOI: 10.1371/journal.pone.0067697] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 05/22/2013] [Indexed: 11/19/2022] Open
Abstract
Red blood cells (RBCs) are among the most intensively studied cells in natural history, elucidating numerous principles and ground-breaking knowledge in cell biology. Morphologically, RBCs are largely homogeneous, and most of the functional studies have been performed on large populations of cells, masking putative cellular variations. We studied human and mouse RBCs by live-cell video imaging, which allowed single cells to be followed over time. In particular we analysed functional responses to hormonal stimulation with lysophosphatidic acid (LPA), a signalling molecule occurring in blood plasma, with the Ca2+ sensor Fluo-4. Additionally, we developed an approach for analysing the Ca2+ responses of RBCs that allowed the quantitative characterization of single-cell signals. In RBCs, the LPA-induced Ca2+ influx showed substantial diversity in both kinetics and amplitude. Also the age-classification was determined for each particular RBC and consecutively analysed. While reticulocytes lack a Ca2+ response to LPA stimulation, old RBCs approaching clearance generated robust LPA-induced signals, which still displayed broad heterogeneity. Observing phospatidylserine exposure as an effector mechanism of intracellular Ca2+ revealed an even increased heterogeneity of RBC responses. The functional diversity of RBCs needs to be taken into account in future studies, which will increasingly require single-cell analysis approaches. The identified heterogeneity in RBC responses is important for the basic understanding of RBC signalling and their contribution to numerous diseases, especially with respect to Ca2+ influx and the associated pro-thrombotic activity.
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Affiliation(s)
- Jue Wang
- Institute for Molecular Cell Biology and Research Centre for Molecular Imaging and Screening, Saarland University, Homburg/Saar, Germany
| | | | - Anna Bogdanova
- Institute of Veterinary Physiology, Vetsuisse Faculty and the Zürich Center for Integrative Human Physiology, University of Zürich, Zürich, Switzerland
| | - Sandra Ruppenthal
- Institute for Molecular Cell Biology and Research Centre for Molecular Imaging and Screening, Saarland University, Homburg/Saar, Germany
| | - Kathrina Wiesen
- Institute for Molecular Cell Biology and Research Centre for Molecular Imaging and Screening, Saarland University, Homburg/Saar, Germany
| | - Elisabeth Kaiser
- Institute for Molecular Cell Biology and Research Centre for Molecular Imaging and Screening, Saarland University, Homburg/Saar, Germany
| | - Qinghai Tian
- Institute for Molecular Cell Biology and Research Centre for Molecular Imaging and Screening, Saarland University, Homburg/Saar, Germany
| | - Elmar Krause
- Physiology, Saarland University, Homburg/Saar, Germany
| | - Ingolf Bernhardt
- Biophysics Laboratory, Saarland University, Saarbrücken, Germany
| | - Peter Lipp
- Institute for Molecular Cell Biology and Research Centre for Molecular Imaging and Screening, Saarland University, Homburg/Saar, Germany
| | - Stephan E. Philipp
- Experimental and Clinical Pharmacology and Toxicology, Saarland University, Homburg/Saar, Germany
| | - Lars Kaestner
- Institute for Molecular Cell Biology and Research Centre for Molecular Imaging and Screening, Saarland University, Homburg/Saar, Germany
- * E-mail:
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Eremeev AV, Timofeeva OA, Goloshchapov AV, Il'nitskaya SI, Merkulova TI, Kaledin VI, Setkov NA. O-aminoazotoluene suppresses hepatocyte proliferation in inbred mice susceptible to hepatocarcinogenesis. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2009; 428:479-83. [PMID: 19994796 DOI: 10.1134/s0012496609050251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- A V Eremeev
- Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, Russia
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Timofeeva OA, Eremeev AV, Goloshchapov A, Kalashnikova E, Ilnitskaya S, Setkov NA, Kobzev V, Buzard GS, Filipenko ML, Kaledin VI, Merkulova TI. Effects of o-aminoazotoluene on liver regeneration and p53 activation in mice susceptible and resistant to hepatocarcinogenesis. Toxicology 2008; 254:91-6. [DOI: 10.1016/j.tox.2008.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Revised: 09/10/2008] [Accepted: 09/15/2008] [Indexed: 01/08/2023]
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van de Kamp JL, Westrick JA, Smolen A. B-6 vitamer concentrations in mouse plasma, erythrocytes and tissues. Nutr Res 1995. [DOI: 10.1016/0271-5317(95)00009-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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