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Chimeric antigen receptor (CAR) T cell therapy is a promising cancer treatment, but how to enhance its efficacy has always been a mystery. Recently, in a research report titled "Cullin-5 deficiency promotes chimeric antigen receptor T cell effector functions potentially via the modulation of JAK/STAT signaling pathway" published in the international journal Nature Communications, researchers from Nagoya University and other institutions in Japan have discovered a way to improve the effectiveness of this potential cancer therapy. By modifying a specific gene, the ability of immune cells to fight cancer can be enhanced for a long time, which may reduce the chance of cancer recurrence.
In a new study, Associate Professor Leszek Liowski and his team at the University of Sydney have identified a new method for producing a therapeutic product, chimeric antigen receptor (CAR) T cells, which has the potential to improve the treatment of cancer. The relevant research results were recently published in the journal Molecular Therapy, with the title of the paper "Tailoring capsid-directed evolution technology for improved AAV-mediated CAR-T generation".
In the field of cancer treatment, proteolysis targeting chimeras (PROTACs) are gradually emerging as a new generation of drugs. This type of drug can accurately target and degrade proteins closely related to cancer growth, bringing hope for conquering those "undruggable" targets that are difficult to deal with with traditional drugs, and also opening up new treatment pathways for many diseases that have no effective treatment options. However, the intracellular transport mechanism of PROTACs, especially what factors affect its therapeutic effect in cancer cells, has always been a mystery that researchers are eager to solve.
In the field of medical research, ACE2 has attracted much attention as a receptor for SARS-CoV-2. It is also of great significance during pregnancy. The circulating level of ACE2 in pregnant women is higher than that in non-pregnant women, and the expression and genetic variation of ACE2 are closely related to various pregnancy diseases such as preeclampsia and fetal growth restriction. Recently, a research article titled "Genetically edited human placental organoids cast new light on the role of ACE2" published in Cell Death Dis constructed a placental organoid model through gene editing technology, and deeply explored the mechanism of action of ACE2 in placental development.
In the field of cancer research, the unique metabolic mode of tumor cells has always been the focus of scientists. In order to meet the needs of their own rapid proliferation, tumor cells will try their best to absorb and metabolize a large amount of nutrients. They can reprogram metabolic pathways and prefer to obtain energy through aerobic glycolysis even when there is sufficient oxygen. This phenomenon is called the "Warburg effect". At the same time, in an oxygen-deficient environment, tumor cells will increase the use of lipids.
Although chimeric antigen receptor (CAR) T cells can effectively fight B-lineage malignancies, disease relapse is common in patients after CAR, and the therapeutic efficacy for other tumors is very limited. These challenges may be solved by controlling the function of CAR-T cells through reasonable manipulation.
In 2010, Sonia Vallabh witnessed her 52-year-old mother develop a rapidly progressive, mysterious, and undiagnosed dementia, and soon died from it. A year later, she learned that her mother had a hereditary prion disease, fatal familial insomnia. After undergoing genetic testing, Sonia learned that she also carried the disease-causing gene mutation, which meant that she herself was likely to suffer from this prion disease. More importantly, this fatal disease usually develops around the age of 50 and quickly leads to death, and there is no cure.
In a new study, a research team from the Helmholtz Institute for RNA Infection Research and the University of Regensburg has provided new insights into how HIV-1, the virus that causes AIDS, cleverly hijacks cellular machinery to maintain its own survival. By dissecting the molecular interactions between the virus and its host, they identified a new strategy for HIV-1 to ensure its own replication while suppressing host cell defenses. The relevant research results were published online in the journal Nature Structural & Molecular Biology in January 2025, with the title "The translational landscape of HIV-1 infected cells reveals key gene regulatory principles".
Colorectal cancer is a type of cancer that begins in the colon (large intestine) or rectum, both of which are part of the digestive system. It usually starts as abnormal growths called polyps that form on the lining of the colon or rectum. Over time, some of these polyps may become cancerous if left untreated.
Estrogen receptor-α coactivator MED1 is overexpressed in 40%-60% of human breast cancers, and its high expression is directly associated with lower disease-free survival in patients receiving anti-estrogen therapy. However, the molecular mechanism of MED1 upregulation and activation in resistance to breast cancer therapy is still unclear to researchers.
