Abstract:
This invention is for an improved process to co-encapsulate hydrophobic drugs and hydrophilic drugs in phospholipid liposomes. Non-toxic supercritical or near-critical fluids with/without polar cosolvents are utilized to solubilize phospholipid materials and hydrophobic drugs, and form uniform liposomes to encapsulate hydrophobic drugs and hydrophilic drugs.DNA topoisomerase I (Top1) is the target of camptothecin, and novel Top1 inhibitors are in development as anticancer agents. Top1 inhibitors damage DNA by trapping covalent complexes between the Top1 catalytic tyrosine and the 3′-end of the broken DNA. Tyrosyl-DNA phosphodiesterase (Tdp1) can repair Top1-DNA covalent complexes by hydrolyzing the tyrosyl-DNA bond. Inhibiting Tdp1 has the potential to enhance the anticancer activity of Top1 inhibitors and to act as antiproliferative agents. It has been recently reported that neomycin inhibits Tdp1 more effectively than the related aminoglycosides paromomycin and lividomycin A. Inhibition of Tdp1 by neomycin is observed both with single- and double-stranded substrates but is slightly stronger with duplex DNA, which is different from aclarubicin, which only inhibits Tdp1 with the double-stranded substrate. Inhibition by neomycin can be overcome with excess Tdp1 and is greatest at low pH. Aminoglycoside antibiotics and the ribosome inhibitors thiostrepton, clindamycin-2-phosphate, and puromycin are the first reported pharmacological Tdp1 inhibitors. The development of Tdp1 inhibitors as anticancer agents can be envisioned as combinations of Tdp1 and Top1 inhibitors. Moreover, Tdp1 inhibitors might also be effective by themselves as anticancer agents. In addition, Tdp1 inhibitors might be valuable as anti-infectious agents.This invention can produce a co-encapsulated combination drug product consisting of a topoisomerase 1 inhibitor such as camptothecins including neat camptothecin and its derivatives irinotecan, topotecan and other derivatives, and a tyrosyl-DNA phosphodiesterase (Tdp1) such as aminoglycoside antibiotics including neomycin and tetracycline, and the ribosome inhibitors thiostrepton, clindamycin-2-phosphate, and puromycin.
Abstract:
The invention relates to a combination of treatments, more particularly a combination treatment for HIV-1 infection. The present invention is directed to the use of bryostatin-1 and their natural and synthetic derivatives for AIDS therapy, in particular to the use of bryostatins in combination with other active drugs such as Histone Deacetylases (HDACs) inhibitors and anti-retrovirals, for the treatment of HIV-1 latency. According to the present invention, we provide a combination therapy for the treatment of HIV-1 latency which employs bryostatin-1 (and analogues) and one of the following HDAC inhibitors; valproic acid, butyrate derivatives, hydroxamic acids and benzamides. While HDACi can be used in continuous dosing protocol, bryostatins can be used following a cyclical dosing protocol. Bryostatins can be formulated in pharmaceutical acceptable carriers including nanoparticles, phospholipids nanosomes and/or biodegradable polymer nanospheres. This combination therapy needs to be used in patients treated with antiretroviral therapy (HIV-1 protease inhibitors, HIV-1 reverse transcriptase inhibitors, HIV-1 integrase inhibitors, CCR5 co-receptor inhibitors and fusion inhibitors).
Abstract:
Compressed gases, liquefied gases, or supercritical fluids are utilized as anti-solvents in a crystal growing process for complex molecules. Crystals of the present invention exhibit greater crystal size and improved morphology over crystals obtained by conventional methods.
Abstract:
The present invention is directed to methods and apparatus for creating a sustained release pathogen vaccine for COVID-19, influenza, HIV and other infectious human and animal viruses and pathogens using supercritical, critical, or near-critical fluids with or without polar cosolvents for simultaneously inactivating virions and pathogens, and encapsulating the inactivated virions and pathogens in biodegradable polymer nanospheres for administration to a patient. The present invention continuously inactivates SARS-CoV-2, influenza, HIV and other infectious human and animal viruses and pathogens, and nanoencapsulates the inactivated virions and pathogens in biodegradable polymer nanospheres to provide a safe and effective sustained-release vaccine, especially for the frail and elderly.
Abstract:
The invention involves the use of supercritical or near supercritical fluids to inactivate pathogens in biologic materials which may or may not be contaminated by pathogens. The pathogen reduced material is then inserted into empty, sterile containment vessels. The apparatus can be used as a means to achieve terminal sterilization of the biologic materials. The preferred method of use for the apparatus includes operation of a conveyor belt to move and fill bottles, flasks, containers, or vials in an assembly line to create the finished product in an effective and timely fashion.
Abstract:
The present invention is directed to methods and apparatus for and products from disrupting, removing intracellular proteins, enzymes and nucleic acids, spray drying, lipid extraction, and making nanoparticles of Saccharomyces cerevisiae (yeast) cell wall followed by acid and/or enzymatic hydrolysis to produce Beta (β)-glucans, chitin and mannans (mannoproteins). The process and apparatus feature critical, supercritical, or near critical fluids for disruption of yeast and making yeast cell wall nanoparticles. The product materials retain full activity and are devoid of residual processing chemicals such as solvents, salts, or surfactants.
Abstract:
Embodiments of the present invention are directed to an apparatus and methods for making nucleic acid loaded nanosomes. One embodiment of the present invention directed to an apparatus comprises a first containment means for containing a mixture of an aqueous solution of nucleic acid and a phospholipid solution with a supercritical, critical or near critical fluid. The apparatus further comprises injection means in fluid communication with said first containment means for receiving the mixture and releasing the mixture as a stream into a decompression liquid. The apparatus further comprises a decompression vessel in fluid communication with the injection means for holding a decompression liquid and receiving the mixture as a stream. The stream forms one or more nanosomes loaded with a nucleic acid in the decompression liquid.
Abstract:
Embodiments of the present invention are directed to apparatus and methods for the substantially continuous processing of cellulosic biomasses with a supercritical, critical or near critical fluid to produce ethanol, bio-fuels and high value end products.
Abstract:
Embodiments of the present invention feature methods for treating inflammatory disease and transplantation characterized in that it includes: (i) the incubation of organs with one or more Bryostatin-1 derivatives under conditions which permits vascular exposure to these compounds prior to or immediately following organ ‘harvesting’, and (ii) intravenous, transdermal, intraperitoneal, intra-alveolar instillation of Bryostatin-1 in vivo during active disease, or during periods of disease remission and (iii) prophylactic administration of Bryostatin-1 to limit the development of GVHD.