Anti-cancer dream cream shrinks oral tumors

Researchers have found that treatment with miR-634 reduces the resistance of oral squamous cell carcinoma cells to cisplatin, resulting in increased tumor cell killing. An ointment containing miR-634 had a similar effect in mice, suggesting that this simple topical treatment could be used to improve the prognosis of patients with advanced oral cancer.

Quelle: Sciencedaily

Anti-cancer dream cream shrinks oral tumors

Researchers have found that treatment with miR-634 reduces the resistance of oral squamous cell carcinoma cells to cisplatin, resulting in increased tumor cell killing. An ointment containing miR-634 had a similar effect in mice, suggesting that this simple topical treatment could be used to improve the prognosis of patients with advanced oral cancer.

Quelle: Sciencedaily

Potential therapy may boost chemoimmunotherapy response in bladder cancer

Adding an anti-inflammatory medication to immunotherapy and standard chemotherapy drugs may provide long-term suppression of aggressive bladder tumor growth, according to a proof-of-concept study.

Quelle: Sciencedaily

New pathway for DNA transfer discovered in tumor microenvironment

Researchers have discovered another way tumor cells transfer genetic material to other cells in their microenvironment, causing cancer to spread.

Quelle: Sciencedaily

Spinal fluid sampling used to track treatment response in pediatric glioma

Treatment for glioma has long relied on MRI imaging to track tumor markers and treatment response. But new findings suggest a new method could provide additional data about tumor markers before changes appear on an MRI, indicating possible strategies to help clinicians address this aggressive form of cancer.

Quelle: Sciencedaily

Getting fuel to an invading cell’s front line

Invading armies need a steady supply of fuel and armaments. That’s just as true when the invaders are cells, such as when tumor cells break away and spread to other parts of the body in a process called metastasis — the most deadly part of cancer. Now, a study in C. elegans worms provides new insight into how invading cells deploy fuel to the front lines of invasion to power their break-through machinery.

Quelle: Sciencedaily

Youngest brain tumor patients have significantly poorer outcomes than older pediatric patients

A researcher has found, through extensive data analysis, that the youngest patients with brain tumors — those ages birth to 3 months — have about half the five-year survival rate as children ages 1 to 19.

Quelle: Sciencedaily

Programming the immune system to supercharge cancer cell therapies

Scientists have developed a genetic screening platform to identify genes that can enhance immune cells to make them more persistent and increase their ability to eradicate tumor cells.

Quelle: Sciencedaily

Nanomedicine: Gentler tumor treatment

Radiation therapy is one of the cornerstones of cancer therapy. However, some types of tumor respond little or hardly at all to radiation. If it were possible to make tumor cells more sensitive, treatment would be more effective and gentler. Empa and ETH Zurich researchers have now succeeded in using metal oxide nanoparticles as „radiosensitizers“ – and in producing them on an industrial scale.

Quelle: IDW Informationsdienst Wissenschaft

Scientists discover the origins of metastasis

Metastatic cells form in a primary tumor and then break away from it, migrate to other organs, attach to them and form new tumors. This spread reduces patients‘ chances of recovery. Scientists have discovered some of the mechanisms by which these cells arise. This is due to cells that have narrowly escaped cell death (apoptosis) following a chemotherapeutic treatment. Those cells reprogram themselves to acquire metastatic skills. Thanks to this study, these cells – called PAME by the researchers – now appear as new therapeutic targets.

Quelle: Sciencedaily

Class II PI3K lipid kinase: Structure of novel drug target resolved

Phosphatidylinositol 3-kinase, or PI3K for short, is a family of lipid kinases that plays a key role in the human body, performing functions such as cell division, metabolism, and cell growth. While class I PI3Kα is well-researched and an important target for cancer drugs, little is known about class II of this lipid kinase family. Now, researchers from the Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) have been able to shed light on its structure and function. The results pave the way for the development of new types of antithrombotic drugs. Moreover, it is likely that the inhibition of class II PI3KC2α is able to arrest tumor angiogenesis.

Quelle: IDW Informationsdienst Wissenschaft

Cerebrospinal fluid may be able to identify aggressive brain tumors in children

It may be possible to identify the presence of an aggressive brain tumor in children by studying their cerebrospinal fluid, according to new research.

Quelle: Sciencedaily

Defeating leukemia cells by depriving them of energy

Acute myeloid leukemia, which affects blood and bone marrow cells, is a particularly dangerous form of cancer. More than half of patients under the age of 60 die. This proportion rises to 85% for patients over 60. A team has now identified a previously unknown mechanism that could lead to the development of new therapies. The selective activation of AMPK, a key enzyme in the energy balance of tumor cells, would indeed lead to their death by triggering the cells stress response. Moreover, the scientists have successfully exploited this energy gap in an animal model of the disease: a combination of two drugs — one of which is already on the market — has indeed shown promise. However, their effectiveness has yet to be confirmed on leukaemia stem cells, which have the ability to escape many treatments to restart tumor growth.

Quelle: Sciencedaily

Researchers create personalized organoid models for rare spinal cancer

A new study adds to a growing body of evidence that organoids — lab-grown collections of cells that mimic a patient’s tumor — are a promising avenue for drug discovery to improve outcomes in patients with cancer, particularly rare cancers for which clinical data on drug effectiveness is often lacking.

Quelle: Sciencedaily

Immune cells leave fingerprints on tumors metastasized to the brain offering clues to future therapies

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.

Quelle: Sciencedaily

Suppressing the spread of tumors

When tumors spread, cancer cells migrate to other parts of the body through the blood or lymphatic vessels. Scientists have now found a new protein that prevents cancer cells from doing so by making them stick more tightly to their surroundings. Their findings could in the future help doctors determine the aggressiveness of a tumor and fine-tune the therapy.

Quelle: Sciencedaily

Genetic remodeling in tumor formation

A new study demonstrates the ability of the mutant Kras oncogene to use genetic reprogramming to make cells more stem-like and plastic; it resolves the long-standing debate over why Kras is so special in tumor formation. They were also able to identify an effector complex that can be targeted for therapeutic treatment against mutant Kras.

Quelle: Sciencedaily

New personalized test for an earlier and more accurate prediction of cancer relapse

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.

Quelle: Sciencedaily

Widely-used hormone drug associated with increased risk of benign brain tumor at high doses

High doses of a widely-used drug used in the hormonal treatment of conditions such as excessive hair growth, early puberty, prostate cancer, are linked to an increased risk of meningioma — the most common type of benign brain tumor, finds a new study of over 8-million patients.

Quelle: Sciencedaily

Simplified antibiotic may set the stage for antitumor treatments

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.

Quelle: Sciencedaily

Systematically examining the way spatial structure influences the evolution of cancer

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.

Quelle: Sciencedaily

Lymphoma: Key signaling pathway involved in tumor formation identified

There are myriad reasons why cancers develop. By studying genes which are altered in people with lymphoma, a multidisciplinary team of researchers has identified a key mechanism involved in disease development. This signaling pathway, which the researchers describe in detail, controls the repair of DNA damage.

Quelle: Sciencedaily

New findings may contribute to better diagnosis and treatment of liver cancer

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.

Quelle: Sciencedaily

Researchers reduce breast cancer metastasis in animal models by modifying tumor electrical properties

Researchers have found that manipulating voltage patterns of tumor cells — using ion channel blockers already FDA-approved as treatments for other diseases — can in fact significantly reduce metastasis in animal models of breast cancer.

Quelle: Sciencedaily

CBD reduces glioblastoma’s size, supportive environment in experimental model

Inhaled CBD shrinks the size of the highly aggressive, lethal brain tumor glioblastoma in an animal model by reducing the essential support of its microenvironment, researchers report.

Quelle: Sciencedaily