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PubMed Journals Articles About "Drug Keytruda Help Block Melanoma Return" RSS

21:40 EST 16th December 2018 | BioPortfolio

Drug Keytruda Help Block Melanoma Return PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Drug Keytruda Help Block Melanoma Return articles that have been published worldwide.

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Showing "Drug Keytruda Help Block Melanoma Return" PubMed Articles 1–25 of 12,000+

Harnessing autophagy to overcome MEK-inhibitor induced resistance in metastatic melanoma.

Patients with malignant melanoma often relapse following treatment with BRAF and/or MEK inhibitors (MEKi) due to development of drug resistance by melanoma subpopulations, mediated through induction of generic survival mechanisms.


JTC-801 Suppresses Melanoma Cells Growth through the PI3K‑Akt‑mTOR Signaling Pathways.

Melanoma is considered as one of the most potentially fatal and aggressive malignancies. Due to the limited efficacy or drug resistance of the current targeted therapies of melanoma, developing new therapeutic drugs against new targets to effectively control tumor growth is greatly needed. In this study, the effect of JTC-801, a selective small-molecule antagonist of nociceptin receptor and analgesic agent, on a melanoma cell line, M14, has been studied. We demonstrate herein that JTC-801 could efficiently ...

Newly developed anti-S100A8/A9 monoclonal antibody efficiently prevents lung tropic cancer metastasis.

The metastatic dissemination of cancer cells to remote areas of the body is the most problematic aspect in cancer patients. Among cancers, melanomas are notoriously difficult to treat due to their significantly high metastatic potential even during early stages. Hence, the establishment of advanced therapeutic approaches to regulate metastasis is required to overcome the melanoma disease. An accumulating mass of evidence has indicated a critical role of extracellular S100A8/A9 in melanoma distant metastasis...


Next-generation sequencing in drug development: target identification and genetically stratified clinical trials.

Next-generation sequencing (NGS) enabled high-throughput analysis of genotype-phenotype relationships on human populations, ushering in a new era of genetics-informed drug development. The year 2017 was remarkable, with the first FDA-approved gene therapy for cancer (Kymriah™) and for inherited diseases (LUXTURNA™), the first multiplex NGS panel for companion diagnostics (MSK-IMPACT™) and the first drug targeting a genetic signature rather than a disease (Keytruda). We envision that population-scale N...

Chitosan-carboxymethyl-5-fluorouracil-folate conjugate particles: Microwave modulated uptake by skin and melanoma cells.

5-Fluorouracil delivery profiles in the form of chitosan-folate submicron particles through skin and melanoma cells in vitro were examined using microwave as the penetration enhancer. Its in vivo pharmacokinetics profiles were also determined. Chitosan-carboxymethyl-5-fluorouracil-folate conjugate was synthesized and processed into submicron particles by spray drying technique. The size, zeta potential, morphology, drug content, drug release, as well as skin permeation and retention, pharmacokinetics, in vi...

Oxidative Stress and Antioxidants in the Pathophysiology of Malignant Melanoma.

The high number of somatic mutations in the melanoma genome associated with cumulative UV exposure has rendered it one of the most difficult of cancers to treat. With new treatment approaches based on targeted and immune therapies, drug resistance has appeared as a consistent problem. Redox biology, including reactive oxygen and nitrogen species (ROS and RNS), plays a central role in all aspects of melanoma pathophysiology, from initiation to progression and to metastatic cells. The involvement of melanin p...

Reversal of Deep Pipecuronium-Induced Neuromuscular Block With Moderate Versus Standard Dose of Sugammadex: A Randomized, Double-Blind, Noninferiority Trial.

Certain surgical interventions may require a deep neuromuscular block (NMB). Reversal of such a block before tracheal extubation is challenging. Because anticholinesterases are ineffective in deep block, sugammadex 4 mg/kg has been recommended for the reversal of rocuronium- or vecuronium-induced deep NMB. However, this recommendation requires opening 2 vials of 200 mg sugammadex, which results in an increase in drug costs. Therefore, we sought a less expensive solution for the induction and reversal of dee...

New antineoplastic agent based on a dibenzoylmethane derivative: Cytotoxic effect and direct interaction with DNA.

Melanoma accounts for only 4% of all skin cancers but is among the most lethal cutaneous neoplasms. Dacarbazine is the drug of choice for the treatment of melanoma in Brazil through the public health system mainly because of its low cost. However, it is an alkylating agent of low specificity and elicits a therapeutic response in only 20% of cases. Other drugs available for the treatment of melanoma are expensive, and tumor cells commonly develop resistance to these drugs. The fight against melanoma demands ...

Variation in daily ultraviolet light exposure and sun protection behaviours of melanoma survivors: an observational single-arm pilot study with a wearable sensor.

Melanoma survivors are at risk to develop another melanoma and the same patterns of sun exposure that caused the initial melanoma contribute to the risk for a second melanoma. Despite awareness of the risk of developing another melanoma and the benefit of sun protection in modifying that risk, melanoma survivors often engage in unprotected episodes of sun exposure resulting in sunburn. While melanoma survivors initially decrease sun exposure following diagnosis, these changes are not maintained. This proof-...

Impact of primary care provider density on detection and diagnosis of cutaneous melanoma.

Early diagnosis of cutaneous melanoma is critical in preventing melanoma-associated deaths, but the role of primary care providers (PCPs) in diagnosing melanoma is underexplored. We aimed to explore the association of PCP density with melanoma incidence and mortality.

Bad Company: Microenvironmentally Mediated Resistance to Targeted Therapy in Melanoma.

This review will focus on the role of the tumor microenvironment (TME) in the development of drug resistance in melanoma. Resistance to mitogen-activated protein kinase inhibitors (MAPKi) in melanoma is observed months after treatment, a phenomenon that is often attributed to the incredible plasticity of melanoma cells but may also depend on the TME. The TME is unique in its cellular composition - it contains fibroblasts, immune cells, endothelial cells, adipocytes and amongst others. In addition, the TME p...

Peptide-modified vemurafenib-loaded liposomes for targeted inhibition of melanoma via the skin.

Vemurafenib is a chemotherapeutic drug recently approved by the FDA to treat melanoma. Because the drug is usually delivered orally, the route of administration readily causes damage to major organs with limited antitumor efficacy and bioavailability. In this study, we developed a peptide-modified vemurafenib-loaded liposome for the targeted inhibition of subcutaneous melanoma via the skin. First, the peptide-modified vemurafenib-loaded liposomes (Vem-TD-Lip) were prepared and characterized with respect to ...

MicroRNA-211 loss promotes metabolic vulnerability and BRAF inhibitor sensitivity in melanoma.

The clinical management of malignant melanoma remains a challenge because these tumors are intrinsically aggressive and prone to therapeutic resistance. Micro-RNA (miR)-211 is an emerging melanoma oncogene. Melanoma metabolism adapts to promote survival, including in response to BRAF inhibition, but how miR-211 participates in this process is unknown. Here we generated miR-211 loss-of-function cell lines using CRISPR/Cas9 technology and show that miR-211 loss slowed growth and invasion in vitro, inhibited p...

Epidemiology of melanoma in situ in New Zealand: 2008-2012.

The incidence of melanoma in situ varies throughout the world. It is associated with excellent outcomes, however many of those untreated will go on to develop invasive melanoma with a worse prognosis. There is no previously published data on melanoma in situ (MIS) in New Zealand. Further information is needed to enable better understanding of the disease spectrum.

Malignant Melanoma: Diagnostic and Management Update.

After studying this article, the participant should be able to: 1. Summarize the changes to the American Joint Committee on Cancer Eighth Edition Melanoma Staging System. 2. List advances in genetic, molecular, and histopathologic melanoma diagnosis and prognostication. 3. Recommend sentinel lymph node biopsy and appropriate surgical margins based on individualized patient needs. 4. Recognize the currently available treatments for in-transit metastasis and advanced melanoma. 5. Describe current and future t...

Glutathione Reductase-mediated Thiol Oxidative Stress Suppresses Metastasis of Murine Melanoma Cells.

Malignant melanoma is a highly metastatic and life-threatening cancer. Reactive oxygen species (ROS) play important roles in cancer initiation and progression including metastasis. It has been reported that the oxidative stress spontaneously generated in circulating melanoma cells was able to suppress distant metastasis in vivo. However, little is known regarding the effects and mechanism of glutathione reductase (GR) inhibition-induced oxidative stress in regulation of melanoma metastasis. Here, we demonst...

MicroRNA-29a Inhibits Growth, Migration and Invasion of Melanoma A375 Cells in Vitro by Directly Targeting BMI1.

Melanoma is one of the most aggressive malignant tumors, with increasing incidence, poor prognosis, and lack of any effective targeted therapies. Abnormal expression of miR-29a has been found in several types of cancers, including melanoma. In this study, experiments were performed to investigate the role of miR-29a in melanoma, and the molecular mechanism by which miR-29a represses melanoma.

Cytotoxic T-lymphocyte-associated protein 4 expressed by melanoma cells does not affect melanoma-specific cytotoxic T lymphocytes in the effector phase.

Cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) is one of the important molecules that regulate the anti-melanoma T-cell response. Currently, there are some reports showing that CTLA-4 is expressed not only by T cells but also by various kinds of tumor cells, including melanoma cells. However, there is no report that shows the role of CTLA-4 expressed by melanoma cells in melanoma-specific cytotoxic T-lymphocyte (CTL) response. In this report, we confirmed substantial CTLA-4 expression and the localiza...

Melanoma in US Hispanics: recommended strategies to reduce disparities in outcomes.

Cutaneous melanoma is the most fatal form of skin cancer and presents a considerable public health concern in the United States. Although the age-adjusted incidence of melanoma among US Hispanics is lower than that of non-Hispanic whites (NHWs), Hispanics who are diagnosed with melanoma are more likely to present with thicker primary tumors, metastatic disease, and lower 5-year melanoma-specific survival rates than NHWs. Melanoma risk factors and reasons for late presentation among Hispanics are not complet...

Nevus of Ota associated with a primary uveal melanoma and intracranial melanoma metastasis.

Nevus of Ota is a blue, hyperpigmented, benign dermatosis of the skin and mucosae that most often occurs unilaterally in the distribution of the ophthalmic (V1) and maxillary (V2) branches of the trigeminal nerve. Although uncommon, association with malignant melanoma is a complication that must be considered in the evaluation of patients with nevus of Ota. Mutations in the and genes in patients with nevus of Ota place them at higher risk for malignant melanoma and metastasis. We report the case of a 29-y...

Efficacy of novel immunotherapy regimens in patients with metastatic melanoma with germline mutations.

Inherited mutation is a strong risk factor for cutaneous melanoma. Moreover, carriers have been found to have poor melanoma-specific survival. In this study, responses to novel immunotherapy agents in mutation carriers with metastatic melanoma were evaluated.

β-adrenoceptors as drug targets in melanoma: novel preclinical evidence for a role of β3-adrenoceptors.

Stress plays a role in tumorigenesis through catecholamines acting at β-adrenoceptors including β1-, β2- and β3-adrenoceptors and the use of β-adrenoceptor antagonists seems to counteract tumor growth and progression. Preclinical evidence and meta-analysis data demonstrate that melanoma shows a positive response to β-adrenoceptor blockers and in particular to propranolol acting mainly at β1- and β2-adrenoceptors. Although evidence suggesting that β3-adrenoceptors may play a role as a therapeutic ta...

NPS - 2143 (hydrochloride) inhibits melanoma cancer cell proliferation and induces autophagy and apoptosis.

Melanoma is a common and aggressive skin cancer caused by the oncogenic transformation of melanocytes. NPS-2143 (hydrochloride) is a calcification drug that acts as an antagonist of the calcium-sensing receptor (CaSR) and consequently stimulates the release of parathyroid hormone. In the present work, we treated cells from the human melanoma cell line M14 to investigate the effects of NPS-2143 on melanoma cells and elucidate their underlying mechanisms. We observed that NPS-2143 inhibits the survival and pr...

Oxyfadichalcone C inhibits melanoma A375 cell proliferation and metastasis via suppressing PI3K/Akt and MAPK/ERK pathways.

Melanoma remains to be one of the most incurable cancers. Discovery of novel antitumor agent for melanoma therapy is expected. We recently isolated Oxyfadichalcone C from Oxytropis falcate and investigated the anti-proliferative and anti-metastatic activity on human melanoma A375 cells in vitro.

A lentiviral vector-based insertional mutagenesis screen identifies mechanisms of resistance to MAPK inhibitors in melanoma.

The treatment of melanoma patients has been revolutionized by the development of targeted therapies such as BRAF and MEK inhibitors which have achieved response rates above 50% and median overall survival of more than 12 months. Similarly, immunotherapies such as checkpoint inhibitors have been used to obtain response rates of up to 70%, with a proportion of patients having long-term durable responses (Luke et al., 2017). Despite these advances, the majority of melanoma patients cannot be cured with availa...


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