calcium phosphate/breast neoplasms

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Multifunctional lipid-coated calcium phosphate nanoplatforms for complete inhibition of large triple negative breast cancer via targeted combined therapy.

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Combined and targeted therapy have been extensively employed to achieve more effective elimination of tumor tissues. In this study, biocompatible multifunctional lipid-coated calcium phosphate nanoparticles (LCP NPs) were designed and constructed as an efficient targeted delivery system for combined

Enhanced delivery of siRNA to triple negative breast cancer cells in vitro and in vivo through functionalizing lipid-coated calcium phosphate nanoparticles with dual target ligands.

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The conjugation of ligands to nanoparticle platforms for the target delivery of therapeutic agents to the tumor tissue is one of the promising anti-cancer strategies. However, conventional nanoparticle platforms are not so effective in terms of the selectivity and transfection efficiency. In this

Preparation of optimized lipid-coated calcium phosphate nanoparticles for enhanced in vitro gene delivery to breast cancer cells.

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Lipid coated calcium phosphate (LCP) nanoparticles (NPs) remain an attractive option for siRNA systemic delivery. Previous research has shown that the stoichiometry of reactants affects the size and morphology of nanostructured calcium phosphate (CaP) particles. However, it is unclear how synthesis

Amifostine-conjugated pH-sensitive calcium phosphate-covered magnetic-amphiphilic gelatin nanoparticles for controlled intracellular dual drug release for dual-targeting in HER-2-overexpressing breast cancer.

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We developed a surfactant-free method utilizing amifostine to stably link a targeting ligand (Herceptin) to amphiphilic gelatin (AG)-iron oxide@calcium phosphate (CaP) nanoparticles with hydrophobic curcumin (CUR) and hydrophilic doxorubicin (DOX) encapsulated in the AG core and CaP shell

Calcium phosphate-polymer hybrid nanoparticles for enhanced triple negative breast cancer treatment via co-delivery of paclitaxel and miR-221/222 inhibitors.

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In this study, a development of a novel calcium phosphate-polymer hybrid nanoparticle system is reported.The nanoparticle system can co-encapsulate and co-deliver a combination of therapeutic agents with different physicochemical properties (i.e., inhibitors for microRNA-221 and microRNA-222

VEGF siRNA delivered by polycation liposome-encapsulated calcium phosphate nanoparticles for tumor angiogenesis inhibition in breast cancer.

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Angiogenesis plays an important role in tumor development and metastasis, and many cancer cells upregulate VEGF expression to promote angiogenesis. Silencing VEGF expression by RNA interference is expected to be a promising strategy to suppress the tumor growth. However, low transfection efficiency

Near-infrared emitting fluorophore-doped calcium phosphate nanoparticles for in vivo imaging of human breast cancer.

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Early detection is a crucial element for the timely diagnosis and successful treatment of all human cancers but is limited by the sensitivity of current imaging methodologies. We have synthesized and studied bioresorbable calcium phosphate nanoparticles (CPNPs) in which molecules of the

Expression of bone matrix protein messenger ribonucleic acids in human breast cancers. Possible involvement of osteopontin in development of calcifying foci.

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BACKGROUND Development of calcifying foci is a fairly common finding in human breast cancers, and the deposition of calcium phosphate is observed in such foci. The calcium phosphate is a physiologic component of bones and teeth. Since the expression of messenger (m) RNAs of osteopontin (OPN),

A humanised tissue-engineered bone model allows species-specific breast cancer-related bone metastasis in vivo.

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Bone metastases frequently occur in the advanced stages of breast cancer. At this stage, the disease is deemed incurable. To date, the mechanisms of breast cancer-related metastasis to bone are poorly understood. This may be attributed to the lack of appropriate animal models to investigate the

Modulation of estrogen receptor gene transcription in breast cancer cells by liposome delivered decoy molecules.

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It is well known that breast carcinomas without estrogen receptor (ER) have a poor prognosis and do not respond to antiestrogenic therapy. In analyzing the question of the lack of ER gene expression, we have considered the possibility to modify the ER gene expression by transfecting ER-negative

Magnetically responsive hybrid nanoparticles for in vitro siRNA delivery to breast cancer cells.

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Short interfering RNA (siRNA) showed to be a viable alternative to a better prognosis in cancer therapy. Nevertheless, the successful application of this strategy still depends on the development of nanocarriers for the safe delivery of siRNA into the diseased tissue, which mostly occurs by passive

Variability of the paracrine-induced osteoclastogenesis by human breast cancer cell lines.

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Breast cancer frequently metastasizes to the bone, often leading to the formation of osteolytic lesions. This work compares the paracrine-induced osteoclastogenesis mediated by four human breast cancer cell lines, the estrogen-receptor positive T47D and MCF-7 and the estrogen-negative SK-BR-3 and

Incorporation of drug efflux inhibitor and chemotherapeutic agent into an inorganic/organic platform for the effective treatment of multidrug resistant breast cancer.

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Multidrug resistance (MDR) is a pressing obstacle in clinical chemotherapy for breast cancer. Based on the fact that the drug efflux is an important factor in MDR, we designed a codelivery system to guide the drug efflux inhibitor verapamil (VRP) and the chemotherapeutic agent

Effects of tamoxifen on bone mineral density and metabolism in postmenopausal women with early-stage breast cancer.

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At the present time, tamoxifen is the most widely used anti-estrogen for adjuvant therapy and metastatic disease in postmenopausal women with breast cancer, a population at high risk for osteoporosis. This prospective study was designed to evaluate the effect of adjuvant tamoxifen on bone mineral

Suicide gene therapy of human breast cancer in SCID mice model by the regulation of Tet-On.

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BACKGROUND RevTet-On gene expression system was used to deliver the suicide gene tk to human breast cancer cell line MCF-7 and control the tk gene expression level. The animal model of human breast cancer on severe combined immune deficiency (SCID) mice was set up to explore the suicide gene therapy

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