Articles tagged with Cancer Cells
Human cells exposed to high-energy protons and then iron or titanium particles showed a significant increase in anchorage-independent growth, a characteristic of early cancer development. The timing of the particle exposure was critical, with cells responding more strongly when hit by protons first.
Researchers have developed a method to synthesize rasfonin, a cancer-killing compound derived from a fungus, in enough quantity to conduct proper biological tests. The new process produces 67 times more rasfonin than previous methods, offering a promising lead for the development of a potential anticancer drug.
A new study suggests that post-transplant lymphoproliferative disorder (PTLD) arises when immune cells called scout cells become weakened, allowing the Epstein-Barr virus to cause cancer. The study identifies a mechanism that may explain why some patients develop PTLD and others don't.
Researchers investigated nutritional links between smoking and oral cancer, finding folate levels lower in smokers' blood and cheek cells. Smokers also had altered forms of folate distribution, while antioxidants like carotenoids and vitamin E showed similar trends. More studies are needed to clarify these findings.
Researchers at the Ludwig Institute for Cancer Research discovered that SREBP1 regulates both lipid synthesis and cell cycle progression. Disrupting SREBP1 activity can prevent lipid production, which is essential for new cell wall construction.
Researchers at the Mayo Clinic have engineered a modified measles virus that specifically targets and kills cancer cells by recognizing unique protein secretions. This breakthrough enhances the safety and effectiveness of oncolytic virotherapy, reducing the risk of unintended infections while improving cancer treatment outcomes.
Researchers at the University of Florida have successfully tested a new method to detect leukemia cells and believe it can be used to diagnose cancer at the molecular level. The technique uses aptamers, short strands of DNA that can recognize cancerous cells without prior knowledge of molecular changes associated with the disease.
Prostate cancer cells resist hormone treatment by activating three survival strategies involving the protein BAD. The discovery may lead to new treatments or ways to monitor treatment's intended effect, such as developing a drug to prevent BAD inhibition.
Scientists at Johns Hopkins believe that heat therapy can selectively target and kill cancer cells by disrupting their nuclear protein scaffolding. Preliminary research suggests that this approach could be effective in treating solid tumors, with the goal of improving cure rates.
MDM2 overproduced leads to unbalanced p53 regulation, promoting cancer cell growth. The study identifies protein fragments binding to MDM2, inhibiting its destructive effect on p53.
Using mass spectrometry, researchers identified three activating mutations of the tyrosine kinase JAK3 in AML cells, leading to a potential new treatment target. The study's fast and affordable approach could help analyze cancer cells for mutations in just weeks.
Researchers developed a new strategy to identify genetic mutations that drive cancerous growth by analyzing proteins instead of genes. This approach allows for rapid identification of molecular abnormalities vulnerable to specific drug treatments, enabling personalized medicine and potential targeted therapies.
Researchers at Johns Hopkins have discovered protein machinery essential for maintaining chromosome integrity in cells. Removing sirtuin proteins causes yeast cells to become hypersensitive to chemical agents and spontaneously break chromosomes.
Researchers at the University of Minnesota discover a protein's unexpected role in chopping up damaged DNA molecules, leading to cell death. The finding sheds new light on the process of apoptosis and its potential applications in cancer treatment.
Researchers found that pomegranate juice reduced PSA levels by 30% in patients with recurrent prostate cancer, slowing the doubling time of PSA levels. The antioxidant ellagic acid in pomegranate juice was also shown to increase nitric oxide production and induce programmed cell death.
Xiaodong Wang's groundbreaking discoveries in programmed cell death have provided new directions for cancer treatment, highlighting the balance between cell birth and death. His work has also revealed key proteins like cytochrome c involved in apoptosis.
Researchers at Purdue University have developed a microfluidic device that uses electricity to break down cell membranes, enabling the delivery of drugs and genes. This technique allows for detailed analysis of individual cells and can pinpoint abnormalities more quickly than traditional methods.
The study found that DNA repair pathways work at different times during cell development, with homologous recombination active in the first half and non-homologous end joining taking over later. This timing is crucial for the development of various types of cancers.
Researchers found that epigenetic treatment can induce microRNA-127, which downregulates the proto-oncogene BCL6. This may have an anticancer effect. Further studies are necessary to understand the regulation of miRNA expression in cancer.
A phase 2 trial confirms the antitumor efficacy of sunitinib in patients with metastatic clear-cell RCC refractory to cytokine therapy. Sunitinib achieved a 34% partial response rate and median progression-free survival of 8.3 months.
Researchers found that calpain promotes programmed cell death after cells are damaged, but also inhibits it in response to chemotherapeutic drugs. This discovery suggests that calpain inhibitors could improve the effectiveness of chemotherapy and radiation treatment in cancer patients.
A Phase 3 trial shows Xcytrin significantly prolongs time to neurologic progression in patients with non-small cell lung cancer and brain metastases. Xcytrin, a texaphyrin-based drug, enhances cancer cell death when combined with radiation.
A new approach to improving cancer chemotherapy involves giving anticancer drugs basic properties, allowing them to accumulate in both normal and malignant cells. This approach may lead to more effective treatment with fewer side effects.
A new compound created from vitamin E has been shown to be a potent cancer killer by blocking the Bcl-xL protein and causing programmed cell death in cancer cells. The substance kills cancer cells without damaging healthy cells, offering new hope for cancer prevention and treatment.
Dendritic cells are specialized white blood cells that patrol the body for infections. The new discovery reveals they have a highly organized structure, acting as specialized squads to deal with specific problems. This breakthrough sheds light on their role in preventing autoimmune diseases and could lead to new immune therapies.
Researchers at Ohio State University found that RHA regulates the production of growth-proteins, many of which play a role in cancer, and helps viruses establish infections. The study identifies additional genes that require RHA for translation, shedding light on cell regulation and viral mechanisms.
Researchers have developed a new technique called biochemical suppression to identify protein targets for small molecule inhibitors. This method allows for rapid identification of multiple components of complex biological systems, such as cancer cell spread.
A new cell surface profiling technique developed by Carolyn Bertozzi and her team could lead to the creation of a simple blood test for cancer diagnosis. The method involves tagging glycoproteins with a metabolic label and monitoring changes in O-linked protein glycosylation.
The Society of Nuclear Medicine and Molecular Imaging (SNM) has released a landmark procedure guideline for tumor imaging with 18F-FDG PET/CT. The document provides recommendations for patient preparation, image acquisition, interpretation criteria, and quality control to ensure high-quality imaging results.
Researchers propose a new model of p53 regulation that suggests a novel anticancer strategy using Mdm2 and Mdm4. The study reveals that Mdm4 renders p53 inactive, while Mdm2 mainly controls the stability of p53's structure.
Dr. Varshavsky's pioneering studies revealed ubiquitin's diverse roles in cell cycle, DNA repair, and responses to stress, advancing the field of molecular genetics. The March of Dimes Prize acknowledges his significant contributions to understanding birth defects, neurodegenerative syndromes, cancer, and immune disorders.
Researchers at MIT and Brigham have developed a way to design nanoparticles that can selectively deliver chemotherapy to cancer cells while leaving healthy cells intact. The particles, which are about 150 nanometers in size, use targeting molecules called aptamers to home in on cancer cells.
Researchers found that ginger causes both apoptosis and autophagic cell death in ovarian cancer cells, potentially circumventing resistance to conventional chemotherapy. The study suggests ginger may be a promising new treatment option for ovarian cancer with minimal side effects.
Researchers found that omega-3 fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) inhibited the growth of liver cancer cells, whereas omega-6 fatty acid arachidonic acid (AA) had no effect. The compounds induced apoptosis and decreased beta-catenin levels, which are involved in tumor progression.
Scientists have engineered tiny silica particles to carry pharmaceuticals into cells using biocompatible materials and controlled release mechanisms. The mesoporous nanospheres can selectively target cancer cells by releasing drugs in response to specific chemicals, reducing side effects and increasing treatment efficacy.
Scientists have developed a method to track and quantify the absorption of multi-walled carbon nanotubes into living cells. Research found that 74% of nanotubes were assimilated by cancer cells after 15 minutes, with nearly irreversible uptake.
Scientists at the University of California, Santa Barbara, have created a new lipid molecule that delivers therapeutic genes directly to cells, potentially helping inherited diseases and cancers. The novel molecule has a tree-shaped headgroup and displays superior DNA-delivery properties.
Using computer simulations, researchers found that linked and unlinked DNA loops can be identified by their touching points. This discovery has implications for designing new drugs to treat cancer and infectious diseases.
A newly identified cell, dubbed IKDC, has been found to fight cancer by combining the abilities of natural killer (NK) and dendritic cells. This hybrid cell speeds up immune reactions and makes the system more efficient.
A cancer researcher is working on a targeted way to deliver drugs to specific cells, making treatment more precise and effective. The approach uses natural biomolecules to target diseased cells while leaving healthy ones alone.
Researchers are developing nanotechnology approaches for oral health diagnosis and treatment, including precise drug delivery using dendrimers and PEBBLES-probes. These systems aim to increase the effectiveness of anti-cancer drugs and control mineral composition in bone tissue.
Researchers discovered a compound called CDDO-Im that protects against liver cancer at extremely low doses. The compound activates a protein called Nrf2, which stimulates the cell's defense mechanisms and detoxifies harmful agents.
Researchers believe that understanding the structure of DNA end caps, called telomeres, can help develop new cancer treatments. They found that the rate of shortening is influenced by the length of the overhang and hope to manipulate it for therapeutic purposes.
Researchers at University of Pittsburgh discovered that loss of pol zeta's activity in mouse cells leads to chromosomal instability and tumor development. The study suggests that pol zeta may act as a tumor suppressor gene, preventing double-stranded breaks in chromosomes.
Researchers at St. Jude Children's Research Hospital have developed an antibody therapy that successfully targets and kills cancer cells in laboratory models of neuroblastoma. The treatment, which combines antibodies with immune system cells, has shown promise for treating low initial tumor levels or small cancer cell populations.
Researchers identified a two-protein complex Rae1-Nup98 that stabilizes healthy cells by preventing premature chromosome separation. This discovery challenges the long-held understanding of aneuploidy's mechanism and offers a new approach to cancer treatment, potentially leading to more effective and gentler therapies.
Pretreating rogue cancer cells with aspirin enhances their sensitivity to targeted therapy by inducing apoptosis via mitochondrial release of cytochrome c. This combination may improve treatment outcomes for cancers overexpressing the HER-2/neu gene.
Researchers found that human cells without securin protein can recover from widespread chromosome losses over time, suggesting compensatory mechanisms at play. This discovery has implications for cancer treatment, as mathematical models often assume cell populations cannot recover from chromosomal instability.
Researchers from Purdue University and Kyoto University have discovered a plant gene that helps explain why human cells reject chemotherapy drugs. The gene, related to multi-drug resistant proteins in humans, moves a plant growth hormone into cells, suggesting a new approach to reducing drug dosages for cancer patients.
Researchers found that up to 70 percent of the water inside rapidly growing bacterial cells was generated by metabolism. This challenge to prevailing wisdom may lead to new methods for detecting fast-growing cancer cells or studying metabolic changes in obese individuals. The study's findings use stable isotope ratio mass spectrometry ...
Researchers investigate compounds like thalidomide, arsenic, and insecticide-derived drugs for their potential to treat solid tumors and various types of cancers. These novel approaches aim to overcome resistance to existing treatments and reduce adverse effects associated with hormonal ablation therapy.
A new variant of retinoic acid receptor beta has been discovered, which may play a role in vitamin A resistance in lung cancer. The variant, RAR-beta-1', was found to be expressed in normal lung cells and sensitive to retinoic acid, but not in resistant or lung cancer cells.
A novel proteasome inhibitor, NPI-0052, has been found to block cancer cells' proteasomes, leading to cell death. The compound is distinct from existing therapies like bortezomib and shows promise in preclinical studies.
Researchers have discovered a key process underlying CML progression and identified an agent that can block it. Forskolin restores normal cell functioning in Gleevec-resistant cells, offering new treatment options for patients with advanced or resistant disease.
A recent Columbia University study published in Nutrition and Cancer showed that Zyflamend reduces prostate cancer cell proliferation by up to 78% and induces cancer cell death. The research confirms Zyflamend's COX-1 and COX-2 anti-inflammatory effects, with independent anti-cancer benefits against prostate cancer cells.
A recent study at Cold Spring Harbor Laboratory found that certain viral infections may cause cancer by fusing cells, leading to aneuploidy and potentially tumor formation. The researchers discovered that specific gene mutations in human cells can make them more susceptible to this process.
A protein called TAP has been found to suppress prostate cancer growth and enhance the effects of vitamin E. High levels of TAP in normal prostate cells suggest it facilitates the transport of vitamin E into tissue and helps retain high concentrations.
Researchers have developed a method using cheek cells to detect lung cancer with high sensitivity and specificity. The test uses Automated Quantitative Cytometry (AQC) to analyze buccal cell nuclei and predict the likelihood of cancer presence.
Researchers found a special type of nucleosome bearing protein Htz1 that allows genes to be read by cellular machinery in a regulated manner, enabling gene expression. This discovery has implications for understanding how gene activation and repression is altered in cancer cells and developing targeted treatments.
Researchers have discovered functional ion channels in human stem cells that regulate cell differentiation and proliferation. By targeting specific potassium channels, scientists may be able to control cell growth and prevent tumor formation, potentially leading to new treatments for various diseases.