The present disclosure relates to tertiary amino lipidated and/or PEGylated cationic peptide compounds and complexes thereof with nucleic acids for endocellular delivery, methods for preparing the compounds and complexes, and methods for delivering polyanionic compounds to cells.

A nanofibrous mat comprising: electrospun nanofibres forming said mat; and ceramic particles dispersed throughout said nanofibres and comprising a ceramic matrix and a dopant releasably encapsulated within said ceramic matrix, wherein the ceramic particles are dispersed throughout the nanofibres during electrospinning of the nanofibres, whereby said dopant is protected by said ceramic matrix during said electrospinning.

The task of the invention is therefore making available transfer capsules that are taken up by the target cell type and permanently or transiently modify the target cell, without exerting any toxic effects on the cell during this process.

The solution according to the invention consists of the use of monodisperse cores, so as to produce polyelectrolyte nanocapsules having cell-specific sizes from them. The sizes for hematopoietic cells are in a range of 20-80 nm, preferably in a range of 40-60 nm. In this regard, the sizes of the particles must be in a very narrow range, so as to prevent toxic effects from occurring. In order to keep the toxicity of the nanocapsules low, it is furthermore important to remove the nanoparticles around which the capsules are built up (cores) before use. Methods in this regard are known from the state of the art (for example dissolution by means of EDTA).

A further task is the stabilization of the transfer capsules.

The solution according to the invention consists in the modification of the capsules, the layers and/or the cargo to be packed, by means of functional groups, which allows stabilization and thereby long-term storage at room temperature.

The third task is the targeted introduction of the transfer capsules.

The solution according to the invention is a functionalization of the layers by way of chemical modifications and/or supplementing of the layers with antibodies, proteins or peptides.

This disclosure relates to systems, compounds and methods for stem cell delivery. More specifically, the disclosure relates a system for promoting tissue regeneration, the system comprising a plurality of stem cells coated with at least one or a plurality of dendrimer nanocarriers that specifically bind to an adhesion molecule. Additionally, the disclosure relates to methods for delivering stem cells to damaged or diseased tissue for stem cell regeneration of the tissue.

A facilitated method for use in efficient delivery of a pharmaceutical composition over a tissue such as the blood brain barrier and into neurons in the CNS for the treatment of Alzheimer's disease in a mammal, including man is provided. The method is comprising the steps of administrating a therapeutically effective amount of the isolated recombinant Bri2 BRICHOS and lipid microbubbles and enables an increased amount of the isolated recombinant protein to reach the brain to efficiently combat Aβ42 neurotoxicity.

Furthermore, a method for use in enhanced delivery of proteins comprising Bri2 BRICHOS and variants thereof over the blood-brain barrier, facilitating treatment and/or diagnostics of Alzheimer's disease and other neurological diseases is described herein. The method is comprising the steps of administrating a therapeutically effective amount of proteins comprising Bri2 BRICHOS and variants thereof as a first protein moiety coupled to another (non-Bri2) second protein or polypeptide moiety and optionally lipid microbubbles, in the absence of ultrasound treatment.

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The invention relates to nanoparticles containing complexes constituted by nucleic acids and cationic copolymers containing the recurring structural units of formulae (Ia) and (Ib) wherein R.sup.1 and R.sup.6 independently represent hydrogen, alkyl or —COOR.sup.9, R.sup.2 and R.sup.7 independently represent hydrogen or alkyl, R.sup.3 is selected from the group consisting of —O—R.sup.10—, —COO—R.sup.10, —CONH—R.sup.10- or —R.sup.10—, R.sup.4 represents hydrogen, alkyl, cycloalkyl, aryl, aralkyl or alkylaryl, R.sup.5 represents hydrogen, alkyl, cycloalkyl, aryl, aralkyl, alkylaryl or —(alkylene-NH—).sub.malkyl, or R.sup.4 and R.sup.5 together with the nitrogen atom they have in common form a heterocyclic ring, R.sup.8 is selected from the group consisting of —O—R.sup.11, —COO—R.sup.11, —CONH—R.sup.11 or —R.sup.11, R.sup.9 and R.sup.11 independently represent hydrogen or a monovalent organic residue, R.sup.10 represents a bivalent organic residue, and m is an integer from 1 to 5, with the proviso that the nanoparticles have a diameter (z-average) of less than or equal to 900 nm as determined by dynamic light scattering and that the molar ratio of nitrogen atoms in the copolymer to the phosphate groups in the nucleic acid ranges between 1 and 200. The nanoparticles according to the invention allow the transfer of nucleic acids into cells with great efficiency.

A nanocomposite comprising a nanocarrier, a pharmaceutical compound disposed on a surface of the nanocarrier, and a biocompatible coating disposed on the pharmaceutical compound. The nanocarrier comprises nanotubes of a silicate or aluminosilicate material, preferably halloysite, and nanoparticles of a magnetic transition metal ferrite material of formula MFe.sub.2O.sub.4, where M is selected from the group consisting of zinc, nickel, copper, manganese, and cobalt, the nanoparticles being disposed on an interior and/or an exterior surface of the nanotubes. The pharmaceutical compound is disposed in the pores and/or on the surface of the nanocarrier by a solution phase impregnation process. The nanomedicinal composition is used in a method of treating pulmonary infections. The nanomedicinal composition may be administered by inhalation.

One of the significant challenges to translation of intravenously administered nanomaterials has been complement-mediated infusion reactions which can be lethal. Slow infusions can reduce infusion reactions, but slow infusions are not always possible in applications like controlling bleeding following trauma. Nanocapsules based on polyurethane are introduced as candidates that do not substantially activate complement protein C5a and the PEGylation and functionalization of the nanocapsules with the GRGDS peptide to create a new class of hemostatic nanomaterials is disclosed. Advantageously, the nanocapsules substantially avoid complement-mediated infusion reactions, promote faster clotting than controls, maintain maximum clot firmness, and do not activate pro-inflammatory cytokines.

An “inverse” precipitation route to precipitate aqueous soluble species with copolymers as nanoparticles having a hydrophilic, polar core and a less polar shell is described.

A construct, or a pharmaceutically acceptable salt thereof, comprising: (a) a polyethylene glycol-block-poly(L-lysine) polymer moiety, wherein the polyethylene glycol is thiol-functionalized; (b) a cholecystokinin-B (CCK-B) receptor ligand coupled to the polyethylene glycol of the polymer moiety; and (c) a siRNA complexed with the poly(L-lysine) of the polymer moiety, wherein the construct is neutralized.