Imaging morphological details and pathological differences of red blood cells using tapping-mode AFM

Verfasser / Beitragende:
[A.S.M. Kamruzzahan, Ferry Kienberger, Cordula M. Stroh, Jörg Berg, Ralf Huss, Andreas Ebner, Rong Zhu, Christian Rankl, Hermann J. Gruber, Peter Hinterdorfer]
Ort, Verlag, Jahr:
2004
Enthalten in:
Biological Chemistry, 385/10(2004-10-01), 955-960
Format:
Artikel (online)
ID: 378941089
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024 7 0 |a 10.1515/BC.2004.124  |2 doi 
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245 0 0 |a Imaging morphological details and pathological differences of red blood cells using tapping-mode AFM  |h [Elektronische Daten]  |c [A.S.M. Kamruzzahan, Ferry Kienberger, Cordula M. Stroh, Jörg Berg, Ralf Huss, Andreas Ebner, Rong Zhu, Christian Rankl, Hermann J. Gruber, Peter Hinterdorfer] 
520 3 |a The surface topography of red blood cells (RBCs) was investigated under near-physiological conditions using atomic force microscopy (AFM). An immobilization protocol was established where RBCs are coupled via molecular bonds of the membrane glycoproteins to wheat germ agglutinin (WGA), which is covalently and flexibly tethered to the support. This results in a tight but non-invasive attachment of the cells. Using tapping-mode AFM, which is known as gentle imaging mode and therefore most appropriate for soft biological samples like erythrocytes, it was possible to resolve membrane skeleton structures without major distortions or deformations of the cell surface. Significant differences in the morphology of RBCs from healthy humans and patients with systemic lupus erythematosus (SLE) were observed on topographical images. The surface of RBCs from SLE patients showed characteristic circular-shaped holes with approx. 200 nm in diameter under physiological conditions, a possible morphological correlate to previously published changes in the SLE erythrocyte membrane. 
540 |a © Walter de Gruyter 
690 7 |a Biochemistry  |2 nationallicence 
690 7 |a Molecular biology  |2 nationallicence 
690 7 |a Cellular biology  |2 nationallicence 
690 7 |a AFM  |2 nationallicence 
690 7 |a erythrocytes  |2 nationallicence 
690 7 |a imaging  |2 nationallicence 
690 7 |a molecular recognition  |2 nationallicence 
690 7 |a red blood cells  |2 nationallicence 
690 7 |a SLE  |2 nationallicence 
700 1 |a Kamruzzahan  |D A.S.M.  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
700 1 |a Kienberger  |D Ferry  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
700 1 |a Stroh  |D Cordula M.  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
700 1 |a Berg  |D Jörg  |u Institute for Medical Diagnostics and Immunologie, General Hospital of Linz, Krankenhaus Strasse 9, A-4020 Linz, Austria  |4 aut 
700 1 |a Huss  |D Ralf  |u Institute of Pathology, University of Munich, Thalkirchner Str. 36, D-80337 Munich, Germany  |4 aut 
700 1 |a Ebner  |D Andreas  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
700 1 |a Zhu  |D Rong  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
700 1 |a Rankl  |D Christian  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
700 1 |a Gruber  |D Hermann J.  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
700 1 |a Hinterdorfer  |D Peter  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Huss  |D Ralf  |u Institute of Pathology, University of Munich, Thalkirchner Str. 36, D-80337 Munich, Germany  |4 aut 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rankl  |D Christian  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Gruber  |D Hermann J.  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hinterdorfer  |D Peter  |u Institute of Biophysics, University of Linz, Altenbergerstr. 69, A-4040 Linz, Austria  |4 aut 
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