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Deleting DNA to treat mitochondrial diseases

Scientists at Kyoto University developed a chemical compound that can tag and remove mutant DNA sequences from mitochondria, potentially treating mitochondrial diseases. The approach overcomes existing problems with genetic material injection and antioxidant drugs.

SourceKyoto University·JournalCell Chemical Biology·DateAug 26, 2021

Teaching an old dog new tricks: An existing drug opens new possibilities for treating child leukemia

A study from Linköping University found that the tumour-inhibiting gene TET2 is silenced in most cases of acute lymphoblastic leukemia (ALL) in children. The gene can be reactivated by treatment with an existing drug, 5-azacytidine, suggesting a targeted therapy for ALL in children.

SourceLinköping University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateAug 24, 2021

Study could lead to new treatments for neuroblastoma

Researchers have identified a new potential treatment for neuroblastoma by targeting the ALT mechanism, which is responsible for chemotherapy resistance. The study found that activating ATM kinase at telomeres promotes chemotherapy resistance in ALT neuroblastoma and suggests a cancer-specific approach to treating this disease.

SourceTexas Tech University Health Sciences Center·JournalScience Translational Medicine·TypeExperimental study·DateAug 23, 2021

Reversal of lung fibrosis in mouse model suggests a novel therapeutic target for pulmonary fibrosis

Researchers reverse lung fibrosis in a mouse model using Bcl-2 inhibitor ABT-199, suggesting a novel therapeutic target to treat idiopathic pulmonary fibrosis. The study finds that monocyte-derived macrophages play a key role in fibrosis progression and that targeting the Cpt1a-Bcl-2 interaction modulates apoptosis resistance.

SourceUniversity of Alabama at Birmingham·JournalCell Death and Differentiation·TypeExperimental study·DateAug 23, 2021

First 3D-bioprinting of entire active tumor

Researchers at Tel Aviv University successfully printed the first entirely active and viable glioblastoma tumor using a 3D printer. The 3D-bioprinted model includes functional blood vessels that simulate a real tumor, making it a promising tool for predicting treatment efficacy and drug development.

SourceTel-Aviv University·JournalScience Advances·DateAug 18, 2021

Researchers identify mechanisms of resistance to drug for triple-negative breast cancer

Researchers at Massachusetts General Hospital have identified two separate genetic alterations that enable triple-negative breast cancer cells to develop resistance to a highly effective drug. The findings could help improve therapy and prolong survival for patients with this aggressive form of breast cancer.

SourceMassachusetts General Hospital·JournalCancer Discovery·TypeExperimental study·DateAug 17, 2021

Fels and Fox Chase researchers highlight roles of TET2 and DNMT3A mutations in personalized medicine-guided synthetic lethality against leukemia

Fels and Fox Chase researchers found specific TET2 and DNMT3A mutations in leukemia patients that affect DNA repair pathways. These mutations make leukemia cells sensitive to PARP inhibitors, a type of targeted therapy, while others are resistant. The study aims to develop personalized therapies for patients with these mutations.

SourceTemple University Health System·JournalCancer Research·DateAug 13, 2021

New in Ethics & Human Research, July-August 2021

The article considers the ethical issues surrounding enrolling children with neurodevelopmental conditions, such as autism spectrum disorder and fragile X syndrome, in clinical trials. Parents may face difficult decisions about whether to enroll their children due to concerns about potential loss of positive aspects of their condition.

SourceThe Hastings Center·JournalIRB Ethics and Human Research·TypeContent analysis·DateAug 9, 2021

Scientists discover nanoclusters effective for cancer in the second near-infrared synergy therapy

Researchers have developed a new type of nanocarrier that combines photothermal, chemo-therapy, and chemodynamic therapy to target and destroy cancer cells. The nanoclusters, which are responsive to near-infrared light, show a significant inhibitory effect on mouse tumor growth in vivo experiments.

NUS researchers discover protein that causes neurological complications in HFMD

Researchers at NUS have identified two new proteins that contribute to EV-A71's ability to invade the central nervous system, making them potential targets for treating severe HFMD cases. This discovery could lead to the development of more effective treatments, particularly for young children affected by this illness.

An antibody-drug combo to combat cancer

Researchers at Tokyo Medical and Dental University developed an antibody-drug conjugate that selectively targets human monocyte progenitors to combat chronic myelomonocytic leukemia (CMML). This strategy effectively blocks malignant cell proliferation with minimal collateral damage to other cell lineages.

SourceTokyo Medical and Dental University·JournalFrontiers in Immunology·DateApr 16, 2021

New class of drug leads to 30% reduced risk of death for bladder cancer patients

A new class of antibiotic-drug conjugate (ADC) drugs has been found to significantly increase the survival rate of patients with bladder cancer. The study, led by Queen Mary University of London, showed that the drug reduced the risk of death by 30% compared to chemotherapy, with a median survival time of approximately 13 months.

SourceQueen Mary University of London·JournalNew England Journal of Medicine·DateFeb 12, 2021