Morphological and topological transformations that are induced into cell-sized giant liposomes

Morphological and topological changes of biological membranes play essential roles in cellular activities, such as endocytosis and exocytosis. Here, real-time imaging of giant liposomes using optical dark-field microscopy reveals that the lipid bilayer membrane possesses the ability to undergo topological transformation through interactions with proteins, peptides, or surfactants.

[1]  B. Lentz,et al.  Outer leaflet-packing defects promote poly(ethylene glycol)-mediated fusion of large unilamellar vesicles. , 1997, Biochemistry.

[2]  D. Zhelev,et al.  Tension-stabilized pores in giant vesicles: determination of pore size and pore line tension. , 1993, Biochimica et biophysica acta.

[3]  H. Hotani Transformation pathways of liposomes. , 1984, Journal of molecular biology.

[4]  K. Takiguchi,et al.  Opening-up of liposomal membranes by talin. , 1998, Proceedings of the National Academy of Sciences of the United States of America.

[5]  Satoshi Ishikawa,et al.  Microscopic observations reveal that fusogenic peptides induce liposome shrinkage prior to membrane fusion. , 2004, Proceedings of the National Academy of Sciences of the United States of America.

[6]  K. Takiguchi,et al.  Capabilities of liposomes for topological transformation , 2001, Proceedings of the National Academy of Sciences of the United States of America.

[7]  S. Takeda,et al.  Liposomes possess drastic capabilities for topological transformation. , 2002, Chemphyschem : a European journal of chemical physics and physical chemistry.

[8]  Matthias Mann,et al.  Trans-complex formation by proteolipid channels in the terminal phase of membrane fusion , 2001, Nature.

[9]  P. Nelson,et al.  Dynamically-Stabilized Pores in Bilayer Membranes , 1996 .

[10]  A Kusumi,et al.  Fast lipid disorientation at the onset of membrane fusion revealed by molecular dynamics simulations. , 2001, Biophysical journal.

[11]  S. Takeda,et al.  Opening of holes in liposomal membranes is induced by proteins possessing the FERM domain. , 2006, Journal of molecular biology.

[12]  A. Brunger,et al.  Structural insights into the molecular mechanism of calcium-dependent vesicle-membrane fusion. , 2001, Current opinion in structural biology.

[13]  P. Fromherz,et al.  From discoid micelles to spherical vesicles. The concept of edge activity , 1986 .

[14]  D. Lasič Chapter 10 - Applications of Liposomes , 1995 .

[15]  S. Takeda,et al.  Mechanical analyses of morphological and topological transformation of liposomes. , 2003, Bio Systems.