A new approach for the study of cationic lipid-DNA complexes by energy dispersive X-ray diffraction

被引:18
作者
Caracciolo, G
Caminiti, R [1 ]
Natali, F
Castellano, AC
机构
[1] Univ Roma La Sapienza, Dipartimento Chim, IT-00185 Rome, Italy
[2] Univ Roma La Sapienza, Ist Nazl Fis Nucl, IT-00185 Rome, Italy
[3] Univ Roma La Sapienza, Dipartimento Fis, IT-00185 Rome, Italy
[4] Inst Max Von Laue Paul Langevin, OGG, INFM, F-38042 Grenoble 9, France
关键词
D O I
10.1016/S0009-2614(02)01454-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
X-ray diffraction (XRD) studies on the cationic liposomes (CL)-DNA complexes currently used in gene delivery have provided detailed structural informations on these compact, ordered self-assemblies sheding light on the poorly understood structure-activity relationship. Among these, the experiments carried out by using a synchrotron radiation source have showed an experimental resolution remarkably better than that achieved one by traditional in house apparatuses. Here we show a new experimental approach for the study of CL-DNA complexes, based on the employment of silicon wafers as substrates, which allows to obtain high-resolution structural informations by energy dispersive X-ray diffraction (EDXD). (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:200 / 204
页数:5
相关论文
共 19 条
[1]   A new technique for the study of phase transitions by means of energy dispersive X-ray diffraction. Application to polymeric samples [J].
Albertini, VR ;
Bencivenni, L ;
Caminiti, R ;
Cilloco, F ;
Sadun, C .
JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 1996, B35 (02) :199-213
[2]  
CAMINITI R, 1996, Patent No. 01261984
[3]  
CAMINITI R, 1991, 25 NAT C CHEM PHYS C
[4]   Self-assembly of cationic liposomes-DNA complexes: a structural and thermodynamic study by EDXD [J].
Caracciolo, G ;
Caminiti, R ;
Pozzi, D ;
Friello, M ;
Boffi, F ;
Castellano, AC .
CHEMICAL PHYSICS LETTERS, 2002, 351 (3-4) :222-228
[5]   Conformational study of proteins by SAXS and EDXD: the case of trypsin and trypsinogen [J].
Caracciolo, G ;
Amiconi, G ;
Bencivenni, L ;
Boumis, G ;
Caminiti, R ;
Finocchiaro, E ;
Maras, B ;
Paolinelli, C ;
Castellano, AC .
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS, 2001, 30 (03) :163-170
[6]   Cationic lipid-DNA complexes in gene delivery:: from biophysics to biological applications [J].
de Lima, MCP ;
Simoes, S ;
Pires, P ;
Faneca, H ;
Düzgünes, N .
ADVANCED DRUG DELIVERY REVIEWS, 2001, 47 (2-3) :277-294
[7]   LIPOFECTION - A HIGHLY EFFICIENT, LIPID-MEDIATED DNA-TRANSFECTION PROCEDURE [J].
FELGNER, PL ;
GADEK, TR ;
HOLM, M ;
ROMAN, R ;
CHAN, HW ;
WENZ, M ;
NORTHROP, JP ;
RINGOLD, GM ;
DANIELSEN, M .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1987, 84 (21) :7413-7417
[8]   Structure, stability, and thermodynamics of lamellar DNA-lipid complexes [J].
Harries, D ;
May, S ;
Gelbart, WM ;
Ben-Shaul, A .
BIOPHYSICAL JOURNAL, 1998, 75 (01) :159-173
[9]   The role of helper lipids in cationic liposome-mediated gene transfer [J].
Hui, SW ;
Langner, M ;
Zhao, YL ;
Ross, P ;
Hurley, E ;
Chan, K .
BIOPHYSICAL JOURNAL, 1996, 71 (02) :590-599
[10]   Formation of domains of cationic or anionic lipids in binary lipid mixtures increases the electrostatic coupling strength of water-soluble proteins to supported bilayers [J].
Käsbauer, M ;
Bayerl, TM .
BIOCHEMISTRY, 1999, 38 (46) :15258-15263