scholarly journals A bifunctional MXene-modified scaffold for photothermal therapy and maxillofacial tissue regeneration

2021 ◽  
Author(s):  
Fengji Li ◽  
Yanling Yan ◽  
Yanan Wang ◽  
Yaru Fan ◽  
Huiru Zou ◽  
...  
Keyword(s):  
Side Effects ◽  
Cancer Cells ◽  
Photothermal Therapy ◽  
Compression Modulus ◽  
Bone Defects ◽  
Photothermal Effect ◽  
Malignant Tumours ◽  
3D Scaffold

Abstract Oral squamous cell carcinoma (OSCC) is one of the most common malignant tumours in the oral and maxillofacial regions and is highly malignant and prone to recur despite the development of various effective treatments, including surgery and chemoradiotherapy. Actually, it is difficult to ensure the complete elimination of tumour cells, and maxillofacial bone defects caused by surgery are hard to heal by themselves. In addition, chemoradiotherapy can bring serious side effects. Therefore, it is imperative to develop a postoperative therapy to kill residual squamous cancer cells and repair bone defects without any side effects. Here, we prepared a three-dimensional (3D) scaffold by a 3D printing technique and freeze-drying method, which contained collagen, silk and hydroxyapatite (CSH) and was functionalized with MXene nanosheets (M-CSH). The considerable photothermal effect with long-term stability can significantly kill squamous CAL-27 cancer cells in vitro and inhibit tumour growth in vivo, increasing the probability of the M-CSH scaffold being applied in the photothermal therapy of OSCC. Moreover, the cell proliferation- and osteogenic-related protein expression of mouse embryonic osteogenic precursors (MC3T3-E1) indicated excellent biocompatibility and osteogenic activity of M-CSH scaffolds. The good compression modulus (52.83 ± 2.25 kPa) and in vivo bone formation performance made it possible to be used as reconstructive materials for bone defects. This scaffold is likely promising in future tissue engineering, especially for the multifunctional treatment of maxillofacial tumours.

pH-Responsible fluorescent carbon nanoparticles for tumor selective theranostics via pH-turn on/off fluorescence and photothermal effect in vivo and in vitro

Nanoscale ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 2512-2523 ◽  
Author(s):  
Eun Bi Kang ◽  
Jung Eun Lee ◽  
Zihnil Adha Islamy Mazrad ◽  
Insik In ◽  
Ji Hoon Jeong ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Photothermal Therapy ◽  
Carbon Nanoparticles ◽  
Fluorescence Probes ◽  
Photothermal Effect ◽  
Turn On ◽  
Fluorescent Carbon Nanoparticles ◽  
Tumor Selective

Here we designed the functionalized FNP as “switch-on” fluorescence probes to sense intracellular cancer cells and controllable photothermal therapy (PTT) in vivo and in vitro.

scholarly journals Low dose amiodarone reduces tumor growth and angiogenesis

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Eliana Steinberg ◽  
Arnon Fluksman ◽  
Chalom Zemmour ◽  
Katerina Tischenko ◽  
Adi Karsch-Bluman ◽  
...  
Keyword(s):  
Side Effects ◽  
Cancer Cells ◽  
Low Dose ◽  
Tumor Model ◽  
In Vitro Assays ◽  
Potential Candidate ◽  
Key Factor ◽  
Angiogenic Effect

Abstract Amiodarone is an anti-arrhythmic drug that was approved by the US Food and Drug Administration (FDA) in 1985. Pre-clinical studies suggest that Amiodarone induces cytotoxicity in several types of cancer cells, thus making it a potential candidate for use as an anti-cancer treatment. However, it is also known to cause a variety of severe side effects. We hypothesized that in addition to the cytotoxic effects observed in cancer cells Amiodarone also has an indirect effect on angiogensis, a key factor in the tumor microenvironment. In this study, we examined Amiodarone's effects on a murine tumor model comprised of U-87 MG glioblastoma multiforme (GBM) cells, known to form highly vascularized tumors. We performed several in vitro assays using tumor and endothelial cells, along with in vivo assays utilizing three murine models. Low dose Amiodarone markedly reduced the size of GBM xenograft tumors and displayed a strong anti-angiogenic effect, suggesting dual cancer fighting properties. Our findings lay the ground for further research of Amiodarone as a possible clinical agent that, used in safe doses, maintains its dual properties while averting the drug’s harmful side effects.

scholarly journals Ganoderma Lucidum Polysaccharides Enhance the Abscopal Effect of Photothermal Therapy in Hepatoma-Bearing Mice Through Immunomodulatory, Anti-Proliferative, Pro-Apoptotic and Anti-Angiogenic

2021 ◽  
Vol 12 ◽  
Author(s):  
Qing-Hai Xia ◽  
Cui-Tao Lu ◽  
Meng-Qi Tong ◽  
Meng Yue ◽  
Rui Chen ◽  
...  
Keyword(s):  
Ganoderma Lucidum ◽  
Photothermal Therapy ◽  
Antitumor Immunity ◽  
Photothermal Effect ◽  
High Morbidity ◽  
Abscopal Effect ◽  
Ganoderma Lucidum Polysaccharides ◽  
Promising Treatment

Hepatocellular carcinoma is a malignant tumor with high morbidity and mortality, a highly effective treatment with low side effects and tolerance is needed. Photothermal immunotherapy is a promising treatment combining photothermal therapy (PTT) and immunotherapy. PTT induces the release of tumor-associated antigens by ablating tumor and Ganoderma lucidum polysaccharides (GLP) enhance the antitumor immunity. Results showed that Indocyanine Green (ICG) was successfully encapsulated into SF-Gel. ICG could convert light to heat and SF-Gel accelerates the photothermal effect in vitro and in vivo. PTT based on ICG/ICG-SF-Gel inhibited the growth of primary and distal tumors, GLP enhanced the inhibitory efficacy. ICG/ICG-SF-Gel-based PTT and GLP immunotherapy improved the survival time. ICG/ICG-SF-Gel-based PTT induces tumor necrosis and GLP enhanced the photothermal efficacy. ICG/ICG-SF-Gel-based PTT inhibited cell proliferation and angiogenesis, induced cell apoptosis, enhanced cellular immunity, and GLP enhanced these effects. In conclusion, GLP could enhance the abscopal effect of PTT in Hepatoma-bearing mice.

scholarly journals Matrine inhibits the development and progression of ovarian cancer by repressing cancer associated phosphorylation signaling pathways

2019 ◽  
Vol 10 (10) ◽  
Author(s):  
Xi Zhang ◽  
Guoqing Hou ◽  
Andong Liu ◽  
Hui Xu ◽  
Yang Guan ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Side Effects ◽  
Cancer Cells ◽  
Signaling Pathways ◽  
Molecular Mechanisms ◽  
Chemotherapy Resistance ◽  
Treatment Strategies ◽  
Ovarian Cancer Cells

Abstract Ovarian cancer remains the most lethal gynecologic malignancy with late detection and acquired chemoresistance. Advanced understanding of the pathophysiology and novel treatment strategies are urgently required. A growing body of proteomic investigations suggest that phosphorylation has a pivotal role in the regulation of ovarian cancer associated signaling pathways. Matrine has been extensively studied for its potent anti-tumor activities. However, its effect on ovarian cancer cells and underlying molecular mechanisms remain unclear. Herein we showed that matrine treatment inhibited the development and progression of ovarian cancer cells by regulating proliferation, apoptosis, autophagy, invasion and angiogenesis. Matrine treatment retarded the cancer associated signaling transduction by decreasing the phosphorylation levels of ERK1/2, MEK1/2, PI3K, Akt, mTOR, FAK, RhoA, VEGFR2, and Tie2 in vitro and in vivo. Moreover, matrine showed excellent antitumor effect on chemoresistant ovarian cancer cells. No obvious toxic side effects were observed in matrine-administrated mice. As the natural agent, matrine has the potential to be the targeting drug against ovarian cancer cells with the advantages of overcoming the chemotherapy resistance and decreasing the toxic side effects.

scholarly journals A polydopamine nanomedicine used in photothermal therapy for liver cancer knocks down the anti-cancer target NEDD8-E3 ligase ROC1 (RBX1)

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Zhanxia Zhang ◽  
Junqian Zhang ◽  
Jianhui Tian ◽  
Hegen Li
Keyword(s):  
Liver Cancer ◽  
Cancer Cells ◽  
Photothermal Therapy ◽  
Sirna Delivery ◽  
Genetic Therapy ◽  
Ph Response ◽  
Good Target ◽  
Application Potential

AbstractKnocking down the oncogene ROC1 with siRNA inhibits the proliferation of cancer cells by suppressing the Neddylation pathway. However, methods for delivering siRNA in vivo to induce this high anticancer activity with low potential side effects are urgently needed. Herein, a folic acid (FA)-modified polydopamine (PDA) nanomedicine used in photothermal therapy was designed for siRNA delivery. The designed nanovector can undergo photothermal conversion with good biocompatibility. Importantly, this genetic nanomedicine was selectively delivered to liver cancer cells by FA through receptor-mediated endocytosis. Subsequently, the siRNA cargo was released from the PDA nanomedicine into the tumor microenvironment by controlled release triggered by pH. More importantly, the genetic nanomedicine not only inhibited liver cancer cell proliferation but also promoted liver cell apoptosis by slowing ROC1 activity, suppressing the Neddylation pathway, enabling the accumulation of apototic factor ATF4 and DNA damage factor P-H2AX. Combined with photothermal therapy, this genetic nanomedicine showed superior inhibition of the growth of liver cancer in vitro and in vivo. Taken together, the results indicate that this biodegradable nanomedicine exhibits good target recognition, an effective pH response, application potential for genetic therapy, photothermal imaging and treatment of liver cancer. Therefore, this work contributes to the design of a multifunctional nanoplatform that combines genetic therapy and photothermal therapy for the treatment of liver cancer.

scholarly journals NIR Stimulus-Responsive PdPt Bimetallic Nanoparticles for Drug Delivery and Chemo-Photothermal Therapy

Pharmaceutics ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 675
Author(s):  
Chun Chu ◽  
Zhihong Bao ◽  
Meng Sun ◽  
Xiaowei Wang ◽  
Hongyan Zhang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Photothermal Therapy ◽  
Bimetallic Nanoparticles ◽  
Photothermal Effect ◽  
Cancer Drug ◽  
Photothermal Treatment ◽  
4T1 Cells ◽  
Nir Laser

The combination of chemotherapy and phototherapy has attracted increasing attention for cancer treatment in recent years. In the current study, porous PdPt bimetallic nanoparticles (NPs) were synthesized and used as delivery carriers for the anti-cancer drug doxorubicin (DOX). DOX@PdPt NPs were modified with thiol functionalized hyaluronic acid (HA-SH) to generate DOX@PdPt@HA NPs with an average size of 105.2 ± 6.7 nm. Characterization and in vivo and in vitro assessment of anti-tumor effects of DOX@PdPt@HA NPs were further performed. The prepared DOX@PdPt@HA NPs presented a high photothermal conversion efficiency of 49.1% under the irradiation of a single 808 nm near-infrared (NIR) laser. Moreover, NIR laser irradiation-induced photothermal effect triggered the release of DOX from DOX@PdPt@HA NPs. The combined chemo-photothermal treatment of NIR-irradiated DOX@PdPt@HA NPs exerted a stronger inhibitory effect on cell viability than that of DOX or NIR-irradiated PdPt@HA NPs in mouse mammary carcinoma 4T1 cells in vitro. Further, the in vivo combination therapy, which used NIR-irradiated DOX@PdPt@HA NPs in a mouse tumor model established by subcutaneous inoculation of 4T1 cells, was demonstrated to achieve a remarkable tumor-growth inhibition in comparison with chemotherapy or photothermal therapy alone. Results of immunohistochemical staining for caspase-3 and Ki-67 indicated the increased apoptosis and decreased proliferation of tumor cells contributed to the anti-tumor effect of chemo-photothermal treatment. In addition, DOX@PdPt@HA NPs induced negligible toxicity in vivo. Hence, the developed nanoplatform demonstrates great potential for applications in photothermal therapy, drug delivery and controlled release.

scholarly journals Melanoma treatment via non-specific adhesion of cancer cells using charged nano-clays in pre-clinical studies

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sahel N. Abduljauwad ◽  
Habib-ur-Rehman Ahmed ◽  
Vincent T. Moy
Keyword(s):  
Cell Proliferation ◽  
Side Effects ◽  
Cell Viability ◽  
Cancer Cells ◽  
Melanoma Cell ◽  
Tumour Size ◽  
Nano Clay ◽  
Melanoma Cell Proliferation

AbstractThe incidence of malignant melanoma has rapidly increased in the last two decades. There are many challenges associated with the current conventional therapies, including tumour size and location, the specificity of treatments, tumour resistance, non-mutually exclusive mutations, drug resistance, and many adverse side effects. Due to conventional therapies having several limitations, we have explored an alternative therapy such as nano-clays; nano-sized natural materials originating from clay fraction of the soil. Recently, clay nanoparticles have increasingly been used as a drug carrier for cancer treatment due to their high absorption, ability to engulf microbes, and low toxicity. In this study, we evaluated the effects of a nano-clays mix on melanoma cell proliferation and cell viability in vitro and melanoma growth in vivo xenograft animal model. The in vitro study revealed that nano-clay treatments significantly reduced melanoma cell proliferation and cell viability in a dosage-dependent manner. The in vivo tumour xenograft model demonstrated that nano-clay mix treatment led to significantly reduced tumour size and weight, decreased tumour cell mitosis, and induced tumour necrosis. These processes owe to the most probable changes in the membrane potential of the cancer cells once nano-clays bind with the former through the high non-specific adhesion characteristic of the cancer cells. As the data suggest an important role of nano-clays as an inhibitor of melanoma cell proliferation and survival, these prove to be a natural and effective medicine for the treatment of melanoma. The proven compatibility of nano-clays with the human cells with little side-effects makes them a highly preferred choice for the treatment of melanoma and probably other types of cancers.

In vitro and in vivo synergistic effect of radiotherapy and plasmonic photothermal therapy on the viability of cancer cells using 177Lu–Au-NLS-RGD-Aptamer nanoparticles under laser irradiation

2018 ◽  
Vol 318 (3) ◽  
pp. 1913-1921 ◽  
Author(s):  
Abraham González-Ruíz ◽  
Guillermina Ferro-Flores ◽  
Nallely Jiménez-Mancilla ◽  
Alondra Escudero-Castellanos ◽  
Blanca Ocampo-García ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Cancer Cells ◽  
Laser Irradiation ◽  
Photothermal Therapy ◽  
Plasmonic Photothermal Therapy

scholarly journals Hollow gold nanoshells-incorporated injectable genetically engineered hydrogel for sustained chemo-photothermal therapy of tumor

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
RuiMei Jin ◽  
Jie Yang ◽  
DongHui Zhao ◽  
XiaoLin Hou ◽  
ChaoQing Li ◽  
...  
Keyword(s):  
Photothermal Therapy ◽  
Combined Therapy ◽  
Genetically Engineered ◽  
Gold Nanoshells ◽  
Photothermal Effect ◽  
Layer By Layer ◽  
Hollow Gold Nanoshells ◽  
New Strategy

Abstract Background Combined therapy has demonstrated to be an effective strategy for cancer therapy. Herein, an injectable hydrogel based on the genetically engineered polypeptide and hollow gold nanoshells (HAuNS) has been developed for chemo-photothermal therapy of HepG2 tumor. Methods PC10A/DOX/HAuNS nanogel was prepared with layer-by-layer through the adsorption of DOX and PC10A successively. DOX with positive charge and PC10A with negative charge were coated step by step onto the surface of negatively charged HAuNS. The multifunctional hydrogel PC10A/DOX/HAuNS were prepared via dissolving hybrid PC10A/DOX/HAuNS nanogel in polypeptide PC10A. Chemotherapy drug DOX in the PC10A/DOX/HAuNS hydrogel was absorbed on the HAuNS and directly embedded in the PC10A hydrogel, which contributes to sequentially release of the drug. Specifically, DOX adsorbed on the HAuNS could be released slowly for sustainable chemotherapy. Results The PC10A/DOX/HAuNS hydrogel could pass 26-gauge needle without clogging, indicating that it is injectable. In addition, the PC10A/DOX/HAuNS hydrogel possessed outstanding photothermal effect and photothermal stability. In both in vitro cell and in vivo tumor-bearing mice experiments, a remarkably enhance tumor inhibition was observed by the combined therapy of chemo-photothermal therapy compared with photothermal therapy or chemotherapy alone. Conclusions The combined chemotherapy and photothermal therapy of PC10A/DOX/HAuNS hydrogels could significantly improve the therapeutic effect. Therefore, the multifunctional hydrogel PC10A/DOX/HAuNS is promising to provide a new strategy for sustained chemo-photothermal therapy.

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