High-capacity nanoparticle holds potential for targeted cancer therapies

Image: Jeremiah Johnson Chemists from the Mass. Institute of Technology developed a nanoparticle that they can pack with 3 or more drugs to create custom combination therapies for cancer, according to a study published this week in the Journal of the American Chemical Society. The team also revealed that cisplatin, a powerful anti-cancer drug, doesn’t work using the same DNA-damaging mechanism when delivered via nanoparticle compared to traditional methods. The team uses a unique nanoparticle production method, which they 1st reported in 2014. Instead of trying to load the drugs onto nanoparticles that are already built, they create the nanoparticles from building blocks already containing the drugs. This gives them more precise control over the structure of the nanoparticle and the dosage of each drug, they argue. “We can take any drug, as long as it has a functional group [a group of atoms that allows a molecule to participate in chemical reactions], and we can load it into our particles in exactly the ratio that we want, and have it release under exactly the conditions that we want it to,” senior author Jeremiah Johnson explained to MIT News. “It’s very modular.” The researchers delivered doses of 3 different cancer-fighting drugs – cisplatin, doxorubicin and camptothecin – to mice and observed that ovarian tumors shrank among mice that received treatment. The team also found that survival rates were higher for treated mice t...
Source: Mass Device - Category: Medical Equipment Authors: Tags: Drug-Device Combinations Oncology Research & Development Mass. Institute of Technology Source Type: news

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CONCLUSIONS: With respect to quality of life or reduction of treatment-associated side effects, a thorough review of the literature does not provide any indication to prescribe mistletoe to patients with cancer. PMID: 30673872 [PubMed - as supplied by publisher]
Source: Clinical Colorectal Cancer - Category: Cancer & Oncology Authors: Tags: J Cancer Res Clin Oncol Source Type: research
ConclusionsWith respect to quality of life or reduction of treatment-associated side effects, a thorough review of the literature does not provide any indication to prescribe mistletoe to patients with cancer.
Source: Journal of Cancer Research and Clinical Oncology - Category: Cancer & Oncology Source Type: research
The National Cancer Institute in Rockville, Maryland, has opened an innovative clinical trial for patients with peritoneal mesothelioma that will explore the safety and effectiveness of a novel CAR T-cell therapy. The phase I trial also is being conducted at Washington University in St. Louis. It is aimed at patients whose disease has relapsed after initial chemotherapy treatment. It involves a laboratory modification of a patient’s T cells — a type of white blood cell — that can help the immune system kill the cancer. CAR T-cell therapy is a form of gene therapy that has been highly successful with blood...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
Abstract Glucose, the key source of metabolic energy, is imported into cells by two categories of transporters: 1) facilitative glucose transporters (GLUTs) and 2) secondary active sodium-glucose cotransporters (SGLTs). Cancer cells have an increased demand for glucose uptake and utilisation compared to normal cells. Previous studies have demonstrated the overexpression of GLUTs, mainly GLUT1, in many cancer types. As the current standard positron emission tomography (PET) tracer 2-deoxy-2-(18F)fluoro-D-glucose (2-FDG) for imaging tumour cells via GLUT1 lacks in sensitivity and specificity, it may soon be replaced...
Source: Arhiv za Higijenu Rada i Toksikologiju - Category: Occupational Health Authors: Tags: Arh Hig Rada Toksikol Source Type: research
LOS ANGELES– Stand Up To Cancer (SU2C), a division of the Entertainment Industry Foundation (EIF), is proud to announce that the Hollywood community is rallying together yet again to support the sixth biennial televised fundraising special. CBS will donate one hour of commercial-free primetime to broadcast the event on Friday, Sept. 7  from 8:00 – 9:00 PM ET/PT (7:00 – 8:00 PM CT). Mahershala Ali, Kathy Bates, Katie Couric, Jennifer Garner, Tony Hale, Marg Helgenberger, Ed Helms, Ken Jeong, Marlee Matlin, Matthew McConaughey, Maria Menounos, Jillian Michaels, Trevor Noah, Dak Prescott, Italia Ricci, ...
Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - Category: Consumer Health News Authors: Tags: Health Only CBS Stand Up To Cancer Source Type: news
Abstract BMI-1 (B-lymphoma Mo-MLV insertion region 1) is a key protein partner in polycomb repressive complex 1 (PRC1) that helps in maintaining the integrity of the complex. It is also a key player in ubiquitination of histone H2A which affects gene expression pattern involved in various cellular processes such as cell proliferation, growth, DNA repair, apoptosis and senescence. In many cancers, Overexpression of BMI1correlates with advanced stages of disease, aggressive clinicopathological behavior, poor prognosis resistance to radiation and chemotherapy. BMI1 is emerging as a key player in EMT, chemo-resistance...
Source: Gene - Category: Genetics & Stem Cells Authors: Tags: Gene Source Type: research
Scientists at the Vaccine and Immunotherapy Center (VIC) at Massachusetts General Hospital have uncovered a novel, two-agent immunotherapy combination that worked surprisingly well in animal models with malignant mesothelioma. The discovery has sparked new optimism for immunotherapy, which has struggled to provide consistently positive results with aggressive cancers such as mesothelioma. “This is the beginning of a new story of hope, a new combination of immunotherapy,” Dr. Mark Poznansky, director of the VIC and associate professor at Harvard Medical School, told Asbestos.com. “It worked quite well in a...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
Authors: Skoda AM, Simovic D, Karin V, Kardum V, Vranic S, Serman L Abstract The Hedgehog (Hh) signaling pathway was first identified in the common fruit fly. It is a highly conserved evolutionary pathway of signal transmission from the cell membrane to the nucleus. The Hh signaling pathway plays an important role in the embryonic development. It exerts its biological effects through a signaling cascade that culminates in a change of balance between activator and repressor forms of glioma-associated oncogene (Gli) transcription factors. The components of the Hh signaling pathway involved in the signaling transfer t...
Source: Bosnian Journal of Basic Medical Sciences - Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research
In this study, we tested the binding of radiolabeled mAb 376.96 to human pancreatic ductal adenocarcinoma (PDAC) cells and localization in xenografts in immune-deficient mice and evaluated 212Pb-labeled 376.96 (212Pb-376 .96) for PDAC therapy.
Source: Nuclear Medicine and Biology - Category: Nuclear Medicine Authors: Source Type: research
Authors: Safdar MH, Hussain Z, Abourehab MAS, Hasan H, Afzal S, Thu HE Abstract This review aims to overview and critically analyses recent developments in achieving tumour-specific delivery of anticancer agents, maximizing anticancer efficacy, and mitigating tumour progression and off-target effects. Stemming from critical needs to develop target-specific delivery vehicles in cancer therapy, various hyaluronic acid (HA)-conjugated nanomedicines have been fabricated owing to their biocompatibility, safety, tumour-specific targetability of drugs and genes, and proficient interaction with cluster-determinant-44 (CD44...
Source: Artificial Cells, Nanomedicine and Biotechnology - Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research
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