Abstract
The research on high hydrostatic pressure in medicine and life sciences is multifaceted. According to the used pressure head the research has to be divided into two different parts. To study physiological aspects of pressure on eukaryotic cells physiological pressure (pHHP; < 100 MPa) is used. pHHP induces morphological alterations in the cellular organelles and evokes a reversible stress response similar to the well known heat shock response. pHHP induces highly reversible alterations and normally does not affect cellular viability. The treatment of eukaryotic cells with nonphysiological pressure (HHP; ≥ 100 MPa) reveals different outcomes. Treatment with HHP < 150 MPa does not markedly affect viability of human cells, but induces apoptosis in murine cells. In human cells apoptosis is observed after treatment with ≥ 200 MPa. Moreover, HHP treatment with > 300 MPa leads to necrosis. Therefore, HHP plays a role for the sterilisation of human transplants, of food stuff, and pharmaceuticals. Human tumour cells subjected to HHP > 300 MPa display a necrotic phenotype along with a gelificated cytoplasm, preserve their shape, and retain their immunogenicity. These observations favour the use of HHP to produce whole cell based tumour vaccines. Further experiments revealed that the increment of pressure as well as the pressure holding time influences the cell death of tumour cells. We conclude that high hydrostatic pressure offers both, an economic, easy to apply, clean, and fast technique for the generation of vaccines, and a promising tool to study physiological aspects.
Keywords: High hydrostatic pressure, stress response, cell death, apoptosis, necrosis, immunogenicity, tumour vaccine, transplants
Current Medicinal Chemistry
Title: Cells Under Pressure – Treatment of Eukaryotic Cells with High Hydrostatic Pressure, from Physiologic Aspects to Pressure Induced Cell Death
Volume: 15 Issue: 23
Author(s): Benjamin Frey, Christina Janko, Nina Ebel, Silke Meister, Eberhard Schlucker, Roland Meyer-Pittroff, Rainer Fietkau, Martin Herrmann and Udo S. Gaipl
Affiliation:
Keywords: High hydrostatic pressure, stress response, cell death, apoptosis, necrosis, immunogenicity, tumour vaccine, transplants
Abstract: The research on high hydrostatic pressure in medicine and life sciences is multifaceted. According to the used pressure head the research has to be divided into two different parts. To study physiological aspects of pressure on eukaryotic cells physiological pressure (pHHP; < 100 MPa) is used. pHHP induces morphological alterations in the cellular organelles and evokes a reversible stress response similar to the well known heat shock response. pHHP induces highly reversible alterations and normally does not affect cellular viability. The treatment of eukaryotic cells with nonphysiological pressure (HHP; ≥ 100 MPa) reveals different outcomes. Treatment with HHP < 150 MPa does not markedly affect viability of human cells, but induces apoptosis in murine cells. In human cells apoptosis is observed after treatment with ≥ 200 MPa. Moreover, HHP treatment with > 300 MPa leads to necrosis. Therefore, HHP plays a role for the sterilisation of human transplants, of food stuff, and pharmaceuticals. Human tumour cells subjected to HHP > 300 MPa display a necrotic phenotype along with a gelificated cytoplasm, preserve their shape, and retain their immunogenicity. These observations favour the use of HHP to produce whole cell based tumour vaccines. Further experiments revealed that the increment of pressure as well as the pressure holding time influences the cell death of tumour cells. We conclude that high hydrostatic pressure offers both, an economic, easy to apply, clean, and fast technique for the generation of vaccines, and a promising tool to study physiological aspects.
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Frey Benjamin, Janko Christina, Ebel Nina, Meister Silke, Schlucker Eberhard, Meyer-Pittroff Roland, Fietkau Rainer, Herrmann Martin and Gaipl S. Udo, Cells Under Pressure – Treatment of Eukaryotic Cells with High Hydrostatic Pressure, from Physiologic Aspects to Pressure Induced Cell Death, Current Medicinal Chemistry 2008; 15 (23) . https://dx.doi.org/10.2174/092986708785909166
DOI https://dx.doi.org/10.2174/092986708785909166 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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