Articles tagged with Tumor Microenvironments
A novel reporter cell experimental system enables the visualization of sequential changes during endothelial-mesenchymal transition (EndoMT) induced by transforming growth factor-β. Researchers identified CD40 as a potential partial EndoMT marker, which suppresses the transition from partial to full EndoMT.
Researchers found that artepillin C interacts intensely with tumor cells, altering their fluidity and triggering autophagy. The study's results contribute to a deeper understanding of the substance's action mechanisms and provide insights for future research.
Researchers identified senescence-related tumor microenvironment genes associated with poor prognosis, genetic alterations, and reduced responsiveness to immunotherapy in HNSC. The study highlights the importance of precision medicine approaches for personalized treatment.
Researchers analyzed LTBR expression levels in various cancers, finding it associated with low patient survival and immune cell infiltration. The study identified LTBR as a potential target for cancer immunotherapy and marker of poor prognosis.
A groundbreaking study identifies FAM3C as a key regulator of breast cancer progression within the tumor microenvironment. The overexpression of FAM3C promotes breast cancer cell survival and metastasis, while its depletion inhibits tumor growth in genetically engineered mouse models.
Researchers developed a new imaging technique to visualize the tumor microenvironment of glioblastoma, revealing insights into its pathology. The technique uses PET imaging with Carbon-11 acetate, tracking reactive astrocytes and distinguishing them from tumor cells.
Cancer stem cell-derived exosomes (CSC-Exos) are essential for communication between CSCs and other cells in the tumor microenvironment, contributing to cancer progression. The editorial highlights their potential as a novel clinical tool for diagnosis, prognosis, prevention of tumor recurrence, and therapeutic strategy
The iStar tool uses advanced techniques to capture both detailed views of individual cells and broader tissue patterns, enabling doctors to diagnose cancers that might otherwise go undetected. It also predicts gene activities at near-single-cell resolution, paving the way for molecular disease diagnosis.
This review highlights the role of single-cell sequencing in HBV-HCC research, shedding light on tumor heterogeneity and immune microenvironment dynamics. The study provides new avenues for visualizing intratumoral and intertumoral heterogeneity, monitoring tumor progression, and preventing cellular deterioration.
A new study found that perivascular fibroblasts support the creation of an immunosuppressive tumor microenvironment, allowing glioblastoma to evade the immune system. The fibroblasts may also promote stem-like cancer cells that rarely divide, leading to poor survival outcomes.
Studies at single-cell resolution reveal significant tumor cell heterogeneity and an immune-evasive environment that contributes to treatment resistance in T follicular helper cell lymphomas. A novel marker, PLS3, is also identified as a key player in this process.
Researchers found that tumor-resident T-cell receptor sequences showed high complementarity with the cancer testis antigen DDX53, suggesting an immune response that selects for DDX53-negative cells. This association was correlated with worse disease-free survival rates, highlighting a potential early esophageal cancer antigen.
Scientists from Tokyo Medical and Dental University created a synthetic polymer biomaterial that mimics the pancreatic adenocarcinoma microenvironment, enabling them to identify potential therapeutic targets. The study successfully recapitulates the complex interactions between cancer stem cells and their niche.
A new study found that the gut microbiota plays a significant role in prostate inflammation in aging men, particularly those with metabolic syndrome. The researchers discovered a strong relationship between IL-6 and IL-18 expression and lipid parameters in the prostate tissue of men with BPH + MetS.
Researchers developed a reliable and reproducible real-time live tissue sensitivity assay (RT-LTSA) using fresh tumor samples to predict patients' clinical response to chemotherapy. The study showed improved disease-free survival and reduced recurrence rates in patients who received RT-LTSA sensitive adjuvant regimens.
A team of researchers has discovered a subtype of natural killer cells, known as TaNK cells, which exhibit dysfunctional anti-tumor functions within the tumor microenvironment. These cells have been found to be associated with adverse prognoses and resistance to immunotherapy in various cancer types.
Researchers have discovered that estrogen promotes tumor growth in ERα-negative cancers, such as triple-negative breast cancer. Anti-estrogenic therapies, when combined with immune checkpoint inhibitors, drastically suppress tumor progression in mice models.
Glutamine metabolism plays a crucial role in cancer cell growth and survival, with its inhibition shown to block cancer cell growth in vivo and in vitro. A recent editorial paper suggests that glutamine dysregulation may also impact the tumor microenvironment, potentially leading to increased oxidative stress and cancer cell death.
Researchers have developed an oncolytic virus that can 'warm up' cold tumors and improve immunotherapy outcomes. The virus was engineered to carry a gene encoding a TGF-β inhibitor, which greatly increased survival rates in mice with aggressive melanoma and other cancers.
Researchers create accurate tumor models using 3D bioprinting and a bioink made from Laponite, improving bonding and cross-linking capabilities. The study shows that Laponite enhances biological signaling in the tumor microenvironment, increasing cell viability and promoting anti-tumor drug development.
A study published in Cell Death & Disease has characterized the cellular composition and spatial architecture of tumor microenvironment in human multiple primary lung cancers. The researchers identified a previously undescribed sub-population of epithelial cells, CLDN2+ alveolar type II (AT2), specifically enriched in MPLCs.
A new single-cell study provides deeper understanding of the evolution of the tumor microenvironment in gastric cancer. Researchers identified six unique ecotypes, or collections of cell states, within the tumor microenvironment and discovered a potential new therapeutic target, SDC2.
Researchers developed a new method, photoacoustic spectral analysis (PASA), to analyze the tumor microenvironment without invasive procedures. The technique uses laser light and sound waves to identify different types of tumors with high accuracy.
A pan-cancer single-cell T cell atlas provides a detailed picture of the heterogeneity of T cells within the tumor microenvironment, revealing a previously undescribed stress response state that appears to be less effective at fighting cancer. This new discovery highlights the need for further understanding of how these states contribu...
Researchers have studied targeting telomeres as a potential therapeutic strategy for non-small cell lung cancer. Telomere dysfunction and telomerase deficiency slowed tumor progression, increasing vulnerability to DNA damage and immune system response.
Researchers have discovered that HER3 plays a crucial role in promoting cell survival in metastatic colorectal and pancreatic cancer. The surrounding liver microenvironment activates HER3, making it an emerging therapeutic target for these types of cancer.
Researchers tracked immune cell clusters in the aging mouse prostate using highly multiplexed immune profiling. Early adulthood sees myeloid cells, while between 6-12 months old, there's a profound shift to T and B lymphocyte-dominance. The study reveals new insight into prostatic inflammaging and the window for interventions.
A study published in Cell Reports found that saturated fatty acids promote the immune escape of oral cancers in mouse models. Obesity helps establish a type of tumor microenvironment that promotes tumor progression by suppressing STING-type-I interferon pathway and NLRC3.
A Phase I/II clinical trial combining intratumoral delivery of an engineered oncolytic virus with subsequent immunotherapy improved survival outcomes in a subset of patients with recurrent glioblastoma. The study demonstrated the combination was well-tolerated, with no dose-limiting toxicities.
Researchers have highlighted the importance of stromal vitamin A pathway in regulating IL-6 expression in colorectal cancer-associated fibroblasts. The study found that disrupting retinol-mediated IL-6 expression could be a potential approach to target CAFs during CRC treatment.
Children's Hospital Los Angeles researchers have identified a disruption in early kidney progenitor cell development linked to the formation of Wilms tumor. The study found that these cells can reproduce the original tumor and are aggressive, drug-resistant, and metastasize like cancer cells.
Scientists discovered that deleting a protein called sphingosine kinase 2 (SphK2) reprograms the tumor microenvironment, decreasing S1P levels and increasing p53 tumor suppressor gene accumulation. This creates an inhospitable environment for aggressive breast tumors.
Recent studies have highlighted the importance of tumor microenvironment in developing and controlling triple negative breast cancer progression. Researchers suggest that technological advancements like genomics and epigenomics hold promise for overcoming TNBC's current limitations.
Cancer-associated fibroblasts (CAFs) are a type of cell that plays a crucial role in the tumor microenvironment. The authors suggest that understanding CAFs is essential for developing effective cancer therapies. Research targeting CAFs has shown promise, but challenges remain due to their complex nature.
Researchers propose conjugating a cell-penetrating peptide to oxaliplatin to overcome chemotherapy resistance in colorectal cancer. The new approach reduces platinum accumulation in tumour microenvironment and healthy tissues.
Researchers at Georgia Institute of Technology developed a synthetic tumor model to understand the impact of microenvironment on targeted therapies for Activated B Cell-like Diffuse Large B cell lymphoma. The model showed promise in demonstrating how combining therapeutics can overcome tumor resistance to inhibitors.
Researchers created a three-dimensional structure that mimics bone and houses osteosarcoma cells beside immune cells, finding increased inflammation reduces chemotherapy effectiveness. The study highlights the importance of the tumor microenvironment in disease progression and treatment.
Researchers develop unsupervised machine learning algorithm to classify osteosarcoma at diagnosis based on gene expression modules. This approach enables personalized treatment strategies for osteosarcoma patients.
A comprehensive analysis of invasive ER+ breast cancers found macrophages as dominant immune cells infiltrating tumors. The study identified distinct immune cell 'neighborhoods' associated with good patient outcomes and highlights the need for tailored immunotherapies targeting macrophages.
Researchers at Garvan Institute of Medical Research found that introducing bacteria to a tumor's microenvironment triggers an immune response, activating neutrophils to destroy tumors in animal models. This breakthrough therapy targets neutrophils to improve cancer treatment outcomes.
Researchers at Kyoto University found that neutrophils instruct macrophages to form a bacteria-permissive microenvironment, which could have implications for cancer treatment. The study suggests that A9, an enzyme expressed in neutrophils, may play a key role in this process.
Researchers discovered that combining ferroptosis induction with immune checkpoint inhibition reduces liver tumour growth and metastases, offering a promising new approach for treating liver cancer
Researchers have developed a novel prognostic index to predict survival outcomes in gastric cancer patients. The inflammation-combined prognostic index (ICPI) combines three biomarkers - lymphocyte-to-monocyte ratio, neutrophil-to-lymphocyte ratio, and platelet-to-lymphocyte ratio - to provide a personalized prognosis for each patient.
Researchers highlight CD200's role in regulating immunosuppressive tumor microenvironments and propose alternative strategies for its neutralization. Unbiased genomic- and proteomic-based approaches may help clarify CD200 expression regulation across various human cancers.
Researchers analyzed tumor microenvironment of pancreatic cancer, revealing two major defects that inhibit immune response. The study suggests a new approach using anti-CD137 agonist antibody treatment in combination with anti-PD-1 immunotherapy to activate T cells.
Researchers found that regorafenib, a dual PDGFR α/β inhibitor, modifies the cancer microenvironment and enhances the efficacy of anti-PD-1 immunotherapy in advanced gastric cancers. This combination therapy boosts tumor infiltrating immune cells and reduces tumor fibroblasts.
Researchers found that MMTV-NeuT/ATTAC mice treated with anti-PD-1 therapy developed increased tumor-associated macrophages, EMT, fibroblast proliferation, and enhanced extracellular matrix. These findings suggest potential therapeutic avenues to enhance PD-1 immune checkpoint sensitivity.
Researchers at MD Anderson Cancer Center have discovered a novel triple immunotherapy combination targeting checkpoints in T cells and myeloid suppressor cells, improving anti-tumor responses and survival rates in preclinical models of pancreatic cancer. The study found that neutralizing specific immunosuppressive mechanisms dramatical...
Researchers at the University of Pittsburgh discovered that exhausted cancer-fighting T cells can become immunosuppressive when working in low-oxygen tumor environments. Targeting these conditions can reinvigorate these cells, improving response to immune-based cancer therapies.
The use of 3D-patient tumor avatars (3D-PTAs) is crucial for guiding treatment decisions in precision oncology. These avatars, including patient-derived organoids, 3D bioprinting, and microscale models, can accurately depict a tumor with its microenvironment, enabling the testing and prediction of therapeutic drug efficacy.
Dr. Keith Chan joins Houston Methodist to enhance chemoimmunotherapy responses in bladder cancer, while also expanding research into pancreatic and skin cancers. He will lead translational research and mentor next-generation cancer researchers.
Researchers developed polymeric micelles to reprogram tumor microenvironment, enhancing nano-immunotherapy efficacy in mouse breast cancer models. The treatment response can be predicted from ultrasound shear wave elastography measurements prior to treatment initiation.
Research shows that tumors from Black patients have a higher score of biomarker for distant metastatic recurrence and more macrophages than white patients. The study suggests that racial disparities in ER-positive/HER2-negative breast cancer outcomes may be partly explained by differences in the tumor microenvironment.
A study published in Nature reveals that cancer stem cells' miscommunication with their environment can trigger a self-perpetuating series of events leading to malignancy. Leptin signaling plays a surprising role in this process, which could be blocked to prevent tumor progression.
Researchers review myeloid-derived suppressor cells' phenotypes, mechanisms of immunosuppression, and roles in cancer treatment. Studies on non-malignant diseases, such as autoimmune disorders and obesity, are lacking, highlighting the need for further investigation.
Researchers found that HER2-positive breast cancer patients with high levels of tumour infiltrating lymphocytes in residual disease have significantly shorter overall survival. High levels of TILs are associated with poorer outcomes, while lower levels are linked to improved survival rates.
Assistant Professor Nourridine Siewe developed a new mathematical model to assess different approaches for treating metastatic cancer. The model evaluates the interactions among immune cells and cancer, helping clinicians decide on the best treatment strategies.
A study reveals that interleukin 34 (IL-34) modulates the balance between two myeloid-derived suppressor cell populations, leading to immunosuppression and chemoresistance in triple-negative breast cancer. Neutralizing IL-34 with a drug reduces tumor growth and susceptibility to chemotherapy.
Research at Linköping University suggests that dense breasts have unique biological characteristics that promote cancer growth, leading to a fivefold increased risk. The study used MRI and microdialysis techniques to measure proteins in breast tissue, finding elevated levels of inflammatory markers and growth factors.
A new study reveals that urolithin A from pomegranates can rejuvenate T cells by recycling and renewing mitochondria, enhancing their ability to fight tumors. The researchers plan to investigate the application of urolithin A in clinical trials for colorectal cancer.