Articles tagged with Drug Resistance
Researchers at Memorial Sloan Kettering Cancer Center have found that lung cancer cells retain a 'memory' of their healthy cell counterparts, which could be exploited to improve treatment with KRAS inhibitors. Eliminating these AT1-like cells improves treatment response to the drugs.
Community antibiotic consumption in the EU increased by 18.8% between 2021 and 2022, reversing a significant decline seen during the pandemic. The resurgence of infections may have contributed to the rebound, but highlights the need for continued prudent use of antibiotics.
Scientists at Texas Biomedical Research Institute found a promising cancer therapy also effectively reduces TB growth, even for drug-resistant bacteria. The therapy combines MCL-1 and BCL-2 inhibitors with antibiotics to control TB up to 98%.
A new therapeutic, lepodisiran, has shown promising results in reducing lipoprotein(a) levels to undetectable levels for nearly one year. The study found that the medication is safe and effective in lowering Lp(a) levels by more than 94%.
The ORBITA-2 trial found that stenting improves symptoms compared to a placebo procedure, providing evidence-based treatment for stable chest pain. The study suggests updating guidelines for stable coronary artery disease and offers patients and medical teams two treatment strategies with similar benefits.
The Asian malaria mosquito Anopheles stephensi is spreading drug and diagnostic resistant malaria in Africa, increasing the risk of malaria infections by 270%. Its unique ecology and resistance to insecticides make it challenging for conventional mosquito control tools.
Researchers have discovered highly effective antibodies against P. aeruginosa that can block its type III secretion system and are effective against highly resistant bacteria. These 'pathoblockers' offer a potential therapeutic approach for treating acute and chronic infections with multi-resistant pathogens.
A study led by the University of Sydney found that many antibiotics for childhood infections have less than 50% effectiveness, leading to thousands of unnecessary deaths globally. The World Health Organization has declared antimicrobial resistance a top public health threat, emphasizing the urgent need for updated guidelines.
Researchers have identified polyalthic acid, a compound in copaiba oil, with potent antibacterial activity against Gram-positive bacteria. The study's findings pave the way for developing alternative medications to combat antimicrobial resistance.
Researchers discovered BMAL1 is significantly upregulated in senescent cells and modulates the senescence program through AP-1. The study highlights a previously unappreciated role of BMAL1 in regulating cellular senescence and circadian clock components.
Researchers discovered that inhibiting the BRAF/EGFR/MEK pathway significantly reduced cancer stemness and drug resistance in primary colorectal cancer cells. The study also identified a triple combination treatment against BRAF, EGFR, and MEK as a promising approach to block these activities and develop effective treatments.
A University of Melbourne research team is developing an oral therapeutic to restore the activity of common antibiotics used to treat community-acquired bacterial pneumonia. The project aims to combat antibiotic-resistant bacteria and reduce healthcare costs, with potential applications in low- and middle-income countries.
Researchers at MedUni Vienna discovered that dormant tumor cells surviving chemotherapy can be targeted through the inhibition of P-glycoprotein, opening new possibilities for delaying relapse. This breakthrough could represent a step forward in treating aggressive triple-negative breast cancer, which has limited treatment options and ...
In Eritrea, a new artemisinin-resistant variant has been detected, accompanied by gene deletions that render rapid diagnostic tests ineffective. This emergence poses a significant threat to malaria control efforts in the Horn of Africa and beyond.
Researchers have discovered a unique adhesin in Candida auris that enables it to stick to surfaces and cause disease. The study found that this adhesin, SCF1, is essential for colonization and virulence, suggesting a potential target for anti-fungal therapy.
Researchers at Tianjin University have discovered a novel approach to combating multidrug-resistant bacteria, inspired by the selective biocatalytic property of macrophages. The biomimetic intelligent catalysis system, consisting of living macrophages and nanoparticles, shows promise in killing MDR E. coli without harming normal cells.
A Boston University-led study identified genetic signatures of TB-susceptible and TB-resistant macrophages, leading to a new approach to tweak the immune system to fight the disease. The research could lead to therapies targeting host immunity to tuberculosis.
Researchers at KAUST discovered that certain combinations of stressors increase gene-transfer rates, while others reduce it. They found synergistic effects from combining stressors like UV light and disinfection chemical byproducts, as well as antagonistic effects from chloroform.
Malaria parasites have developed resistance to artemisinins, a critical treatment for non-severe cases, with devastating consequences. The study found that effectiveness declined by 2025% between 2016 and 2019, highlighting the urgent need for new treatments.
University of Queensland researchers have identified a novel molecule that could overcome cancer drug resistance and prevent tumour regrowth in cancer patients. The newly discovered molecule is not currently a target for treatment, opening the potential for new drug development to combat this major cause of death in cancer patients.
Researchers found that next-generation interventions like triple ACTs resulted in treatment failure counts at least 81% lower than traditional therapies. The study suggests extending treatment courses and using multiple drugs simultaneously may hold treatment failure rates near 10%.
Researchers developed a novel material that self-assembles into micelle structures targeting cancer cell lysosomes, specifically interacting with Cathepsin B. This leads to dysfunctional lysosomes and apoptotic death of cancer cells. The technology promises a new approach to combat drug resistance in cancer treatment.
Philip Low, a Purdue University researcher, is working on validating a previously successful malaria treatment by reducing the number of days required for therapy. His goal is to prevent drug-resistant strains from proliferating and save lives in developing countries.
A Pittsburgh-based surveillance system detected a drug-resistant Pseudomonas aeruginosa infection linked to artificial tears months before the national public health alert. The findings demonstrate the effectiveness of whole genome sequencing-based surveillance in detecting outbreaks and preventing nationwide cases.
Australian researchers analyzed over 1,300 Golden staph strains, linking specific genes to antibiotic resistance and the bacteria's ability to linger in the bloodstream. The study highlights the diagnostic power of integrating clinical and genomic data to develop targeted solutions for deadly superbug infections.
Scientists have detected new strains of malaria-causing parasites in Ethiopia that are resistant to current treatments and escape detection by common diagnostic tests. The prevalence of these double-resistant parasites is a concern for malaria control and elimination efforts in Africa, where the disease remains endemic.
A team of Chinese and UK researchers has identified superoxide dismutase 1 (SOD1) as a potential target for reversing drug resistance in ovarian cancer. By using nanoparticles to deliver siRNA that reduces SOD1 levels, the study showed reduced growth and decreased resistance to cisplatin in female mice.
Researchers discovered that titanium micro-spikes with rough surfaces can effectively kill drug-resistant fungus and Candida species through apoptosis. The findings suggest that these surface features may be a promising approach to combatting superbug resistance.
Researchers found a combination of ipilimumab and nivolumab can extend progression-free survival and improve response rates in patients with resistant metastatic melanoma. The treatment showed a 37% improvement in progression-free survival compared to ipilimumab alone.
A UCF researcher is developing a new antibiotic to treat tuberculosis and related lung infections. The team aims to create potent antimycobacterial agents that can be administered orally and target drug-resistant strains.
Researchers used cryoelectron microscopy to visualize how ribosome-modifying enzymes squeeze RNA nucleotides and alter them, leading to drug resistance. The discovery may lead to the design of new antibiotic therapies targeting these enzymes.
LSU Health researchers found combining an investigational oral drug with standard-of-care medications reverts hormone resistance and increases effectiveness in experimental models of ER+ and TNBC. The study's findings suggest a new approach for treating treatment-resistant breast cancers.
Researchers identified a new approach to treat poxviruses by targeting a cellular protein, making the virus more susceptible to natural defences. Existing immunosuppressive drugs can restrict replication and spread of poxviruses.
The study estimates more than two of every five deaths in the Americas were associated with AMR in 2019, accounting for 11.5% of global deaths. The four most fatal infectious syndromes were bacterial respiratory infections, bloodstream infections, and urinary tract infections.
Researchers find that Acinetobacter baumannii can achieve significant functional modifications in protein complexes over short evolutionary time spans, particularly in hair-like cell appendages. This diversity may affect the pathogen's interaction with its environment and inform personalized therapies.
Researchers at Salk Institute discovered molecular mechanisms of HIV drug-resistance to Dolutegravir, a breakthrough that could lead to the development of new HIV therapeutics. The study revealed how changes in integrase protein structure can lead to resistance and how another compound, 4d, may overcome this resistance.
Researchers from Korea University Medicine have discovered a potential therapeutic target for overcoming cisplatin resistance and neuropathic pain in cervical cancer. By inhibiting TRPV1, they found that resistant tumors became vulnerable to cisplatin, improving the outlook for patients.
Researchers have discovered a mechanism leading to resistance in luminal breast cancer and propose using the approved osteoporosis drug denosumab to block RANK protein, promoting effectiveness of CDK4/6 inhibitors. This could lead to new treatment options for patients with metastatic breast cancer.
A study published in the Journal of Hospital Infection reveals that pharmacist-led multi-faceted interventions can optimize antimicrobial prescriptions in dental clinics, reducing the incidence of serious infectious diseases. The intervention increased penicillin usage and decreased the use of broad-spectrum antimicrobials.
Researchers found that antimicrobial resistance emerges from selection for pre-existing resistant clones, not new mutations. Infections with multiple pathogen clones show increased resistance to antibiotics, but also potential for faster loss of resistance when no antibiotics are present.
Researchers have identified a unique role for certain immune receptors in leprosy infections, which could lead to new treatments. The study found that targeting a specific glycolipid and its interaction with an immune receptor may offer an alternative approach to current antibiotic-heavy treatment.
Researchers have developed a new therapy that disrupts prostate cancer cell metabolism and releases cisplatin, causing cells to die. In mouse models, the treatment shrunk tumors substantially, with no peripheral neuropathy or weight loss.
Researchers identified a new drug treatment option for peritonitis in patients on peritoneal dialysis, showing that a low dosage of ceftazidime and avibactam is sufficient to treat the infection. The study's findings could help gain control over peritonitis in patients with difficult-to-treat germs.
The study found that drug-resistant Leishmania parasites have distinct protein production profiles compared to sensitive parasites, suggesting a global reprogramming of protein synthesis. This pre-emptive adaptation enables the parasite to quickly respond to the presence of the drug and survive when it is absent.
Researchers have identified anti-malarial properties in cancer drugs, offering a potential solution to the growing crisis of drug-resistant malaria. The study found that certain protein kinase inhibitors exhibited strong anti-malarial effects, highlighting a new approach to accelerating drug discovery.
A new genomic analysis reveals a north-south divide in P. falciparum drug resistance markers and genetic structure in Mozambique. The findings suggest that artemisinin remains effective for treating malaria, while piperaquine can be used in combination therapies. However, the high frequency of quintuple mutants requires close monitorin...
Researchers found commercially available antifungal tests perform inadequately in identifying Candida auris susceptibility to various treatments. The findings highlight the need for improved testing methods to aid clinical decisions and improve patient care.
A recent study published in JAMA found that continuous meropenem administration did not improve mortality rates or reduce the emergence of drug-resistant bacteria in critically ill patients with sepsis. The results suggest that intermittent administration may be a more effective treatment strategy for this condition.
Researchers discovered that cancer cells can adapt to novel CDK2 inhibitors in as little as one to two hours, but adding a second drug can squelch this workaround. Combining CDK2 inhibitors with existing drugs may treat resistant breast cancers more effectively
Researchers at UC San Diego have discovered that shattered DNA fragments are tethered together during cell division, allowing them to be reassembled in a different order. Destroying the tether may help prevent cancerous mutations and is now being explored as a therapeutic target.
Researchers from Universitat de Barcelona and Universitat Internacional de Catalunya discuss the non-receptor protein tyrosine kinase Src as a good example of an oncogene. Targeting the Src N-terminal regulatory element (SNRE) has potential as oncotargets to inhibit Src activity only in cancer cells.
Researchers found that malaria parasites synchronize their gene expression with the host's internal clock, repeating every 24 hours. The study reveals a potential new target for anti-malarial drugs by 'jet-lagging' the parasites' clocks.
Researchers at UCLA have developed a new method to bioprint miniature tumor organoids that can mimic the function and architecture of real tumors. This allows for the accurate measurement of individual organoids, enabling the identification of personalized treatments for people with rare or hard-to-treat cancers.
The nucleus is metabolically active and uses antioxidant enzymes to repair DNA damage. Cells relocate mitochondrial machinery to the nucleus in response to DNA damage, highlighting a paradigm shift in cellular biology.
Researchers discuss chemotherapeutic resistance in recurring ovarian cancer, focusing on the unfolded protein response and its effect on polyploid giant cancer cells. Understanding this mechanism could lead to investigating cancer cell molecular mechanisms and potential therapeutic strategies.
Scientists at McMaster University and MIT have used AI to discover a new antibiotic targeting Acinetobacter baumannii, a deadly drug-resistant pathogen. The new antibiotic, abaucin, targets only A. baumannii, reducing the risk of rapid resistance development.
Researchers at Dartmouth Cancer Center found that alternating estrogen stimulation and anti-estrogen therapy is an effective treatment for patients with metastatic or advanced ER+ breast cancer. The POLLY trial showed that 42% of patients experienced tumor stabilization, while no patients discontinued treatment due to side effects.
Researchers identified compounds in Labrador tea leaves that have antimalarial properties, particularly ascaridole, which has activity against drug-resistant Plasmodium falciparum parasites. The study highlights the importance of investigating and protecting plants used in traditional medicines.
A new study has identified a second key gene, AAT1, involved in malaria's resistance to the drug chloroquine. The finding, published in Nature Microbiology, has implications for the ongoing battle against malaria.
Research from Boston Medical Center found that pulmonary tuberculosis enhances HIV antibody responses and increases the prevalence of antibody-resistant strains. This study has significant implications for HIV vaccines and antibody-based therapies, highlighting the need for novel strategies to generate broad and potent antibodies.