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Salt nanoparticles and compositions and methods of use thereof

A nanoparticle and composition technology, applied in nanomedicine, drug combination, nanotechnology, etc., can solve the problem that the release curve of stable encapsulating agent is not easy to control, and the therapeutic cytokine is easy to encapsulate and control release or combined delivery. And other issues

Pending Publication Date: 2021-09-07
UNIV OF GEORGIA RES FOUND INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stability of these formulations and the release profile of the encapsulating agent are not easy to control
On the other hand, biodegradable solid particles, such as those made of poly(lactic-co-glycolic acid) (PLGA), are highly stable and have controlled-release properties, but lead to easy encapsulation and Complications of controlled release or combination delivery

Method used

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  • Salt nanoparticles and compositions and methods of use thereof
  • Salt nanoparticles and compositions and methods of use thereof
  • Salt nanoparticles and compositions and methods of use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0307] Example 1: Synthesis and degradation of NaCl nanoparticles.

[0308] Materials and methods

[0309] Synthesis of Sodium Chloride Nanoparticles (SCNP)

[0310] In a typical synthesis, 20 mg sodium oleate (TCI, 97%, lot number: W76EGFQ), 1 mL oleylamine (70%, Sigma-Aldrich, lot number: STBF9554V) and 50 mg 1,2-tetradecanediol (90% , Sigma-Aldrich) was dissolved in a mixed solution containing 10 mL of hexane (99.9%, Fisher) and 10 mL of ethanol (99.9%, Fisher). 15 mg of molybdenum(V) chloride (95%, Sigma-Aldrich, lot number: MKBQ9967V) was added to the mixture, and the solution was magnetically stirred at 60° C. for 24 hours. The crude product was collected by centrifugation at 12000 RPM for 10 minutes. The particles were redispersed in hexane by brief sonication and the centrifugation / hexane wash process was repeated 3 times to remove unreacted precursors.

[0311] Phospholipid-Coated Sodium Chloride Nanoparticles (PSCNP)

[0312] The above-synthesized SCNPs in hex...

Embodiment 2

[0323] Example 2: NaCl nanoparticles are taken up by cells and can be cytotoxic.

[0324] Materials and methods

[0325] cell culture

[0326] 4T1 (mouse breast carcinoma), HT29 (human colorectal adenocarcinoma), A549 (human lung adenocarcinoma), SGC7901 (human gastric adenocarcinoma), PC-3 (human prostate adenocarcinoma), UPPL-1541 (rat bladder carcinoma), t24, UMUC2 cells were grown in RPMI-1640 (Corning, 10-040-CV). U87MG (human glioblastoma) and RAW264.7 cells (murine macrophages) were grown in DMEM (Corning, 10-013-CV). B16-F10 (murine melanoma) and BBN963 cells in high glucose DMEM ( 30-2002 TM ) grows in. SCC VII cells (rat squamous cell carcinoma of the head and neck) in Grow in DMEM (Dulbecco's Modified Eagle Medium) / Hams F-12 50 / 50Mix (Corning, 10-090-CV). All cell culture media were supplemented with 10% fetal bovine serum (FBS) and 100 units / mL penicillin and 100 units / mL streptomycin (MediaTech, USA). Human primary prostate epithelial cells (HPrECs, AT...

Embodiment 3

[0338] Example 3: NaCl nanoparticles induce apoptosis of cancer cells.

[0339] Materials and methods

[0340] Mitochondrial potential (Δψm).

[0341]The change of mitochondrial membrane potential was measured by JC-1 mitochondrial membrane potential detection kit (Biotium, catalog number: 30001). Prepare JC-1 working solution by adding 10 µL of concentrated dye to 1 mL of RPMI medium without FBS. PSCNP (52.5, 105 or 160 μg / mL), PBS and NaCl (160.0 μg / mL in PBS) were incubated with cells for 6 hours. Remove medium and replace with JC-1 working solution and incubate for another 15 min. Stained cells were analyzed on an Array Scan VTI reader by analyzing Ch2 (green, JC-1 monomeric dye) and Ch3 (red, JC-1 aggregated dye) signals. Red / green ratios were analyzed by HCS Studio 2.0 Target Activation BioApplication software (Thermo Scientific, MA).

[0342] Oxygen Consumption Rate (OCR).

[0343] PC-3 cells (20,000 cells / well) were seeded in Seahorse XFe 24 assay plates and cult...

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Abstract

Particles formed from an alkai metal or alkaline earth metal and halide, for example, sodium and chloride, are provided. The particles can have a hydrophilic coating or external layer, formed of, for example, a polyether-lipid conjugate. In preferred embodiments, the lipid is a phospholipid, such as a phosphoethanolamine, and the polyether is a polyethylene glycol such as a PEG amine. Methods making the particles by, for example, a microemulsion reaction, are also provided. Pharmaceutical compositions including a plurality of particles and a pharmaceutically acceptable carrier are also disclosed. Typically the compositions include an effective amount of particles to treat a disease or condition, particularly cancer, in a subject in need thereof. The particles are typically nanoparticles, for example, between about 10 nm and 250 nm and can be monodisperse.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to U.S. Provisional Application 62 / 794,350, filed January 18, 2019, which is incorporated herein by reference in its entirety. [0003] Statement Regarding Federally Sponsored Research [0004] This invention was made with government support under NSF1552617 awarded by the National Science Foundation and R01EB022596 awarded by the National Institutes of Health. The government has certain rights in this invention. technical field [0005] The present invention generally relates to particulate compositions and methods of use thereof, particularly for the treatment of cancer. Background technique [0006] Cancer therapy is often severely limited by significant side effects due to nonspecific tissue toxicity, and the identification of new drugs that are selectively toxic to cancer cells or selectively sensitize tumors to therapy is an important goal of cancer research. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K39/00B82Y5/00C01D3/04A61K9/51
CPCB82Y5/00C01D3/04A61K9/5115A61K9/5015A61K9/0019A61K9/1075A61K39/0011C01P2004/84C01P2006/22C01P2004/64C01P2004/38C01P2002/72A61P35/00A61K33/14A61K39/39A61K39/3955A61K45/06A61K2039/505A61K2039/5152A61K2039/55505
Inventor 谢金姜文特雷弗·托德李子波
Owner UNIV OF GEORGIA RES FOUND INC
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