Schlagwort: cell
Immune cells leave fingerprints on tumors metastasized to the brain offering clues to future therapies
10. Februar 2022
Using data from over 100,000 malignant and non-malignant cells from 15 human brain metastases, researchers have revealed two functional archetypes of metastatic cells across 7 different types of brain tumors, each containing both immune and non-immune cell types. Their findings provide a potential roadmap for metastatic tumor formation that could be used to design therapies to improve the treatment of metastasized patients.
New personalized test for an earlier and more accurate prediction of cancer relapse
8. Februar 2022
Researchers have developed a new protocol for monitoring acute lymphoblastic leukemia (ALL), the most common cancer in children, to inform more effective treatment strategies and detect disease recurrence. The personalized mediator probe PCR (MP PCR) uses multiple genomic cancer cell markers in a single assay and is simpler than current techniques. It improves monitoring clonal tumor evolution to detect a relapse sooner and avoid false negative results.
How our body controls inflammation during clean-up mechanisms of damaged cells
5. Februar 2022
A research team has investigated in detail how messenger substances signal inflammation during the removal of damaged cells in the body. Using high-resolution microscopy methods, the researchers were able to show that two proteins interact dynamically with each other and thus determine whether a dying cell triggers an inflammatory reaction in the body.
Simplified antibiotic may set the stage for antitumor treatments
1. Februar 2022
Garden soil houses a variety of bacteria and their natural byproducts — including one that may help halt tumor growth. Lankacidins are molecules that can be isolated from Strepomyces rochei, a common bacterium in soil. In addition to antimicrobial properties, a type of lankacidins, called lankacidin C, can inhibit tumor activity in various cancer cell lines, including leukemia, melanoma, ovarian and breast cancers. Lankacidin C offers a potential foundation on which to design anticancer drugs, but its structure is complicated and difficult to manipulate, according to an international research group. The same group recently identified where antitumor activity is housed on the molecule and has now used that information to simplify lankacidin as a potential starting point to engineer treatments.
Researchers identify key regulator of blood stem cell development
29. Januar 2022
A protein that masterminds the way DNA is wrapped within chromosomes has a major role in the healthy functioning of blood stem cells, which produce all blood cells in the body, according to a new study.
Players needed to solve puzzles and help advance cancer research
28. Januar 2022
Scientists have just launched GENIGMA, a videogame that enlists players to solve puzzles while generating real-world scientific data that can detect alterations in genomic sequences and ultimately advance breast cancer research. The game was created to boost worldwide research efforts that depend on cancer cell lines, a critical resource used by scientists to study cancer and test new drugs to treat the disease. One of the limitations of cancer cell lines are a lack of high-resolution genome reference maps, which are necessary to help researchers interpret their scientific results.
Tumors dramatically shrink with new approach to cell therapy
28. Januar 2022
Scientists have developed a new tool to harness immune cells from tumors to fight cancer rapidly and effectively.
Ground-breaking study reveals dynamics of DNA replication ‘licensing’
27. Januar 2022
A new study has illuminated an important process that occurs during cell division and is a likely source of DNA damage under some circumstances, including cancer.
Stem cell discoveries hold potential to improve cancer treatment
26. Januar 2022
Recent discoveries by stem cell scientists may help make cancer treatment more efficient and shorten the time it takes for people to recover from radiation and chemotherapy.
Landing therapeutic genes safely in the human genome
25. Januar 2022
Researchers have developed a computational approach to identify GSH sites with significantly higher potential for the safe insertion of therapeutic genes and their durable expression across many cell types. For two out of 2,000 predicted GSH sites, the team provided an in-depth validation with adoptive T cell therapies and in vivo gene therapies for skin diseases in mind. By engineering the identified GSH sites to carry a reporter gene in T cells, and a therapeutic gene in skin cells, respectively, they demonstrated safe and long-lasting expression of the newly introduced genes.
Fish study shows role of estrogens in sense of smell
20. Januar 2022
Steroid estrogens play an important role as embryos develop a sense of smell, new research shows. The study, which examined zebrafish embryos, discovered a type of astrocyte glial cell that is new to science, and have been named estrogen responsive olfactory bulb (EROB) cells.
Researchers pinpoint how Zika virus evades cell’s antiviral response
19. Januar 2022
In a new study of the Zika virus, scientists have discovered a key mechanism used by the virus to evade the antiviral response of the cell it is attacking. This finding contributes to a better understanding of how viruses infect cells, overcome immune barriers and replicate — information that is essential for fighting them.
Nuclei-free cells prove utility in delivering therapeutics to diseased tissues
17. Januar 2022
Researchers report successfully removing the nucleus from a type of ubiquitous cell, then using the genetically engineered cell as a unique cargo-carrier to deliver therapeutics precisely to diseased tissues.
Systematically examining the way spatial structure influences the evolution of cancer
15. Januar 2022
Characterizing the way, manner or pattern of evolution in tumors may be important for clinical forecasting and optimizing cancer treatment. Researchers are systematically examining how spatial structure influences tumor evolution. To do this the group developed a computational model with the flexibility to simulate alternative spatial structures and types of cell dispersal.
Human immune system uses ancient family of cell death proteins also found in bacteria
14. Januar 2022
The human immune system, that marvel of complexity, subtlety, and sophistication, includes a billion-year-old family of proteins used by bacteria to defend themselves against viruses, scientists have discovered.
New treatment target ID’d for radiation-resistant cervical cancer
13. Januar 2022
Understanding how cells die is key to developing new treatments for many diseases, whether the goal is to make cancer cells die or keep healthy cells alive in the face of other illnesses, such as massive infections or strokes. Two new studies have identified a previously unrecognized pathway of cell death — named lysoptosis — and demonstrate how it could lead to new therapies for cervical cancer.
To destroy cancer cells, team ‚travels back in time‘
13. Januar 2022
When an individual suffers from cancer, the process of programmed cell death called apoptosis does not occur normally, permitting abnormal cells to thrive.
New findings may contribute to better diagnosis and treatment of liver cancer
13. Januar 2022
In a new study, researchers have identified the presence of a specific connection between a protein and an lncRNA molecule in liver cancer. By increasing the presence of the lncRNA molecule, the fat depots of the tumor cell decrease, which causes the division of tumor cells to cease, and they eventually die. The study contributes to increased knowledge that can add to a better diagnosis and future cancer treatments.
New graft strategy may improve outcomes for blood stem cell recipients
11. Januar 2022
Removing one type of T cell from donor blood used for stem cell grafts could greatly reduce a serious complication called graft-versus-host disease in patients with leukemia, according to a new study.
First time genome editing made possible on cells lining blood vessel walls
5. Januar 2022
Researchers have developed a unique nanoparticle to deliver genome editing technology, including CRISPR/Cas9, to endothelial cells, which are cells that line blood vessel walls. This is the first time that vascular endothelial cells could be reached for genome editing, since the usual way to deliver CRISPR/Cas9 — through a virus — does not work for this cell type.
Lymphoma cell metabolism may provide new cancer target
4. Januar 2022
Aggressive and relatively common lymphomas called diffuse large B cell lymphomas (DLBCLs) have a critical metabolic vulnerability that can be exploited to trick these cancers into starving themselves, according to a new study.
Communication between cells plays a major role in deciding their fate
28. Dezember 2021
Scientists have found a way to prove that biochemical signals sent from cell to cell play an important role in determining how those cells develop, findings that can help explain how stem cells differentiate and how cancer arises and proliferates, possibly leading to new treatments.
Study confirms nutrient’s role in childhood blood cancer
24. Dezember 2021
A molecular building block of many animal proteins, the amino acid valine, plays a key role in cancerous growth seen in T cell acute lymphoblastic leukemia, a new study shows.
New potential treatment for graft-versus-host-disease and other inflammatory disorders
20. Dezember 2021
Researchers have shown that blocking IL-6 and TNF cytokines provides a more effective approach to preventing life-threatening graft-versus-host-disease, an inflammatory condition that develops in patients after their allogeneic hematopoietic stem cell transplantation.
Improving drug options for colorectal cancer patients
15. Dezember 2021
Patients with colorectal cancer were among the first to receive targeted therapies. These drugs aim to block the cancer-causing proteins that trigger out-of-control cell growth while sparing healthy tissues. But some patients are not eligible for these treatments because they have cancer-promoting mutations that are believed to cause resistance to these drugs. Now, physician-scientists have used computer modeling and cell studies to discover that more patients may be helped by a common class of targeted therapies than previously thought.