摘要:
The present invention provides a composition of matter comprising a defective interfering virus particle, wherein said particle naturally occurs in a human infection and wherein said particle has a naturally occurring core antigen internal deletion. Provided is a pharmaceutical composition, comprising defective interfering virus particle and a pharmaceutically acceptable carrier. Provided is a method for preparing defective intefering virus, comprising the steps of: (1) introducing a defective interfering virus and a complementing plasmid expressing a wild type virus core antigen and optionally containing a drug resistance gene, into a recipient cell; (2) selecting for stably tranfected colonies; (3) growing the drug resistant cells and screening for the production of virus DNA replication; and (4) collecting defective interfering virus particles from the medium. Further provided is a vaccine, comprising a defective interfering virus particle.
摘要:
The present invention relates to novel fusogenic vesicles as highly efficient and versatile encapsulation systems for delivering a substance of choice, such as nucleic acids, proteins, peptides, antigens, pharmaceutical drugs and cosmetical agents to cells and tissues.
摘要:
Modulating agents for inhibiting or enhancing desmosomal cadherin mediated cell adhesion are provided. The modulating agents comprise one or more of: a) a peptide sequence that is at least 50% identical to a desmosomal cadherin CAR sequence; b) a non-peptide mimetic of a desmosomal cadherin CAR sequence; c) a substance, such as an antibody or antigen-binding fragment thereof, that specifically binds a desmosomal cadherin CAR sequence; and/or d) a polynucleotide encoding a polypeptide that comprises a desmosomal cadherin CAR sequence or analogue thereof. Methods for using such modulating agents for modulating desmosomal cadherin-mediated cell adhesion in a variety of contexts are also provided.
摘要:
La présente invention concerne un vecteur particulaire caractérisé en ce qu'il comporte : - un noyau hydrophile non liquide ; - une première couche ou couronne de nature lipidique liée au noyau par des liaisons covalentes ; - une seconde couche ou feuillet externe de composés amphiphiles liée à la première couche lipidique par des interactions hydrophobes. Ce vecteur particulaire est utile notamment pour le transport des molécules à activités biologiques.
摘要:
Targeting agents that are capable of permitting or facilitating transport of an active agent through a human or animal gastro-intestinal tissue. These targeting agents are peptides or their derivatives (e.g., fragments) and peptidomimetics thereof, and the nucleotide sequences coding for the peptides and derivatives. The targeting agents have use in facilitating transport of active agents from the lumenal side of the GIT into the systemic blood system, and/or in targeting active agents to the GIT. Therapeutic methods of administration, pharmaceutical compositions and formulations based on the targeting agent peptides are also provided. Preferably, the active agent is a drug or drug-containing nano- or microparticle.