Articles tagged with Fibroblasts
Researchers found that energy-demanding tissues have larger macrophage crews to manage waste, with the number of macrophages tracking mitochondrial activity and waste production. This system is critical for tissue health and function, and may help preserve tissue function as we age.
Researchers developed a hybrid nanoparticle that targets chronic wounds by reducing inflammation, oxidative stress, and promoting fibroblast migration. The treatment promotes full cell regeneration and near-complete closure of simulated lesions in 72 hours.
Researchers at Nagoya University discovered that complement C3 protein acts inside tumors to prevent immunosuppressive cells, improving cancer immunotherapy effectiveness. Higher levels of C3 in tumor tissue were associated with better treatment outcomes and survival rates in patients.
Researchers identified a distinct fibrotic fibroblast population in hypertrophic scars, which they linked to the transcription factor Yin Yang 1 (YY1). Restoring YY1 expression reduced scar-associated fibroblast activation, providing new insights into scar fibrosis and potential therapeutic strategies.
Researchers have made major steps toward solving the mystery of how brain aneurysms form by identifying key cell types and genetic pathways involved. The study's findings provide new insights into a clinical paradox: smaller aneurysms can still rupture, and offer opportunities for early intervention to prevent ruptures.
Researchers found that a vitamin D analog reduced fibroblast activation and increased T cell infiltration in pancreatic tumors, improving chemotherapy responses and progression-free survival. Patients with high vitamin D receptor expression also had longer overall survival.
Researchers identified stage-specific gene expression changes that occur during cellular senescence, revealing an early immune-activating response and a shift in cellular priorities. This study offers new insight into the molecular mechanisms of aging and highlights potential therapeutic strategies for delaying age-related decline.
A study identified exosomal microRNA-122-3p as a key driver of MASLD pathogenesis. Elevated miR-122-3p levels induced triglyceride accumulation and reactive oxygen species production in liver cells.
This study reveals that HDAC3 epigenetically represses RASAL1, a key antifibrotic regulator, leading to enhanced fibroblast activation and extracellular matrix deposition in renal fibrosis. Restoring RASAL1 expression or inhibiting HDAC3 activity attenuates renal fibrosis.
A new platform called ATLAS enables researchers to generate large quantities of cancer cell clusters that accurately model metastasis. Using ATLAS, the Rice team gained insights into the mechanisms that enable cancer clusters to survive in the bloodstream during the metastatic process.
The study provides a breakthrough understanding of the immunoregulatory nature of human tissues, revealing that fibroblasts serve as core regulators of structural immunity in the mouth. The findings lay the groundwork for targeted modulation of fibroblast activity to improve health outcomes in fibrosis, cancer, and autoimmunity.
A new study reveals that p38 MAPK plays a key role in epigenetic regulation of fibrotic genes in lung fibroblasts, particularly in senescent cells. Pharmacological inhibition of p38 MAPK significantly reduced α-SMA and Col3A1 expression, suggesting a potential therapeutic target for treating age-related fibrotic diseases like IPF.
Researchers found that exposure to microbes induces a lasting immune memory in fibroblasts, protecting lungs from allergic reactions for months. This discovery opens up new possibilities for developing preventive strategies for respiratory allergies.
Researchers at OHSU found that sympathetic nerves support pancreatic tumor growth by communicating with cancer cells and nearby fibroblasts. The study suggests that removing these nerves may lead to smaller tumors, particularly in female mice.
Scientists found that tumor-promoting fibroblasts attract nerve fibers through a vicious cycle of signaling and neurotransmitter release. This cycle promotes pre-cancerous growth and pulls in more nerve fibers, leading to a self-reinforcing loop. Disrupting this cycle may lead to new therapies for pancreatic cancer.
Researchers discovered genes that regulate fibroblast growth, which builds the scaffolding between cells. Adjusting these factors reversed age-related changes and improved health outcomes in mice. The study offers new opportunities to understand and reverse aging-related diseases.
Researchers at UC Riverside and City of Hope have developed a novel Pin1 degrading compound that suppresses pancreatic cancer peritoneal metastases. The treatment targets not only cancer cells but also tumor-supporting cells, potentially overcoming treatment resistance.
Researchers identify PIEZO2-expressing fibroblasts as key drivers of keloid formation and recurrence. These cells sense mechanical pressure, leading to excessive collagen production and scarring. The study's findings hold significant implications for future diagnosis and treatment options.
Researchers discovered that FGF21, a muscle hormone released during exercise, is elevated in people with ALS and may play a protective role. Higher levels of FGF21 were associated with slower disease progression and longer survival in patients.
Researchers found that shutting down a signaling pathway in fibroblasts restored heart functioning in lab models. The study suggests that targeting fibroblasts may be essential to treat dilated cardiomyopathy, a leading cause of heart failure.
Scientists have created a novel method to distinguish between healthy and senescent cells using electric fields, marking a fresh start in ageing research. The frequency-modulated dielectrophoresis (FM-DEP) technique is label-free, rapid, and easy to apply, allowing for the characterization of cell type by measuring the cutoff frequency.
Researchers from Yokohama National University have developed a method to fabricate complex oriented tissues with multiple directionality using 3D printing. This technique utilizes flow to orient collagen fibers and cells, allowing for the creation of fine, micro-oriented structures in both horizontal and vertical directions.
Researchers identified three subtypes of senescent skin cells with distinct shapes, biomarkers, and functions. The study found that one subtype, C10, becomes more prevalent with age and is harder to kill with existing drugs.
Researchers discovered a novel line of communication between metastatic medulloblastoma and leptomeningeal fibroblasts, facilitating recruitment and reprogramming to support tumor growth. Disrupting this communication may offer a potential treatment opportunity for this devastating disease.
Researchers at Tulane University identified a potential new way to treat idiopathic pulmonary fibrosis (IPF) using an FDA-approved cancer drug. The treatment works by blocking the CTLA4 protein, which blocks overactive T cells, allowing the immune system to clear out damaged cells that cause lung scarring.
Researchers at Tokyo Metropolitan University have created a novel technique using phase-contrast microscopy to track and analyze the motion of unlabeled cells. This allows for the accurate differentiation of cancerous cells with up to 94% accuracy, opening new avenues for diagnosis and research on cell motility related functions.
A study reveals that Galectin-1 protein, located in fibroblast nuclei, promotes tumor growth and resistance to treatment. The protein regulates gene expression at a specific level, activating KRAS, a key driver of uncontrolled growth and tumor aggressiveness.
Researchers have discovered a potential new treatment for pulmonary fibrosis by targeting the Piezo2 receptor, which plays a critical role in stiffness-mediated profibrotic fibroblast phenotypes. Inhibiting Piezo2 expression or function may slow disease progression and offer new therapeutic options.
Researchers at WashU have developed a method to manipulate the mechanical side of fibrosis, a complex condition that can lead to scarring and breathing difficulties. By controlling the direction of tension forces, they aim to prevent or treat fibrosis and develop personalized treatment plans for patients.
A groundbreaking study from Okayama University reveals that keratinocytes, not fibroblasts, are responsible for dermal collagen formation in humans and other vertebrates. Keratinocytes produce collagen fibers in a structured arrangement before fibroblasts modify them.
A newly discovered mechanism has identified a key protein, AP2A1, that toggles between 'young' and 'old' cell states. By suppressing AP2A1 in older cells, researchers were able to reverse senescence and promote cellular rejuvenation. This breakthrough may lead to new treatment targets for diseases associated with old age.
The Society of Nuclear Medicine and Molecular Imaging has issued a new procedure standard/practice guideline for the use of fibroblast activation protein (FAP) PET, outlining indications, imaging procedures, and quality control/quality assurance procedures. The guideline aims to deliver diagnostic efficacy and study quality for patients.
Researchers discovered that removing arginase-II gene can slow down muscle aging in mice, leading to improved muscle health and reduced inflammation. This finding suggests targeting the Arg-II gene could help maintain muscle strength and mobility in older adults.
UCSF researchers identify a molecular timer controlling mouse birth timing, which could lead to new tests for human preterm labor risk and interventions. DNA packaging during pregnancy plays a crucial role in regulating gene expression, with KDM6B working as a 'timer' that winds down over time.
Researchers from Korea University have developed a groundbreaking technique to transform fibroblasts into mature cardiomyocytes, holding promise for regenerative medicine in treating cardiovascular disease. The method combines fibroblast growth factor 4 (FGF4) with vitamin C to accelerate cell maturation and enhance function.
Researchers identified three subtypes of fibroblasts in skin cancer: myofibroblast-like RGS5+ CAFs, matrix CAFs (mCAFs), and immunomodulatory CAFs (iCAFs). The distribution of these subtypes varies with tumor aggressiveness. iCAFs produce signaling factors to activate immune cells, while mCAFs prevent T cell invasion.
Researchers at UC Riverside develop a novel method to degrade the Pin1 protein, which is involved in pancreatic cancer development. The 'molecular crowbar' strategy has the potential to target and break down harmful proteins, offering new hope for cancer therapy.
Researchers used genomic technology to study Marjolin's ulcer, a rare and highly aggressive skin cancer that grows on chronic burn wounds. The study reveals insights into how keratinocytes switch their function to become cancerous, creating a fertile environment for tumor cells to grow and spread.
A new study suggests that immunotherapy may be an effective treatment strategy for heart failure by blocking scar tissue formation and improving heart function. Researchers identified a type of fibroblast cell responsible for scar tissue and used a monoclonal antibody to reduce its formation, showing promising results in mouse models.
Gladstone researchers have identified a complex molecular connection between immune cells and fibroblasts that contributes to fibrosis in the heart, which may lead to new treatments for heart disease and other fibrotic conditions.
A new study found that fibroblast growth factor 21 (FGF21) is an independent predictor of all-cause mortality in older adults. The Polsenior2 study revealed that middle and high FGF21 levels were associated with increased mortality risk, particularly when adjusted for age, co-morbidities, and blood parameters.
Researchers at Johns Hopkins Medicine found that age-related changes in male fibroblasts contribute to more aggressive and treatment-resistant melanomas. The study discovered that male fibroblasts accumulate reactive oxygen species and produce higher levels of BMP2, leading to increased DNA damage and resistance to targeted therapies.
Researchers analyzed young and aged dermal fibroblasts, finding a significant decrease in protein secretion with age. The study also revealed an increase of over 60% in cytoplasmic protein accumulation, highlighting the cytoskeleton's crucial role in skin aging.
Researchers created a new cell model to study the effects of senescence on lung fibroblasts. Senescent alveolar epithelial cells triggered fibrotic activation in lung fibroblasts, which was attenuated by senolytic therapy.
Weo electrolyzed water (WEW) has been shown to attenuate cellular senescence in both normal fibroblasts and breast cancer cells. The study found that WEW modulated markers of cellular senescence, inflammation, and stress response genes in a cell type-dependent manner.
Researchers investigated the biological repercussions of UV-C radiation exposure from readily available domestic lamps and found that even brief exposure can lead to irreversible alterations in skin cells and retinal cells. The study highlights the need to prioritize safe utilization of these lamps to prevent potential harm.
Researchers at MCG's Vascular Biology Center have identified a new treatment target for age-related macular degeneration (AMD), a leading cause of blindness. Targeting the adenosine receptor 2A (Adora2a) may block excessive blood vessel growth and fibrosis, potentially offering a more efficient treatment than current therapies.
Researchers at Michigan Medicine discovered a pathway that reverses idiopathic pulmonary fibrosis (IPF), a common type of lung scarring. The study found that inhibiting the molecular brake MKP1 is essential for spontaneous resolution of fibrosis, offering new hope for patients with IPF.
A new study using spatial transcriptomics has generated a unique spatial atlas of intestinal cells in both healthy and inflamed states. The research reveals the evolution of cell populations during inflammation, particularly highlighting the significance of fibroblasts in response to gut inflammation.
Researchers define a 'core senescent profile' in human colon fibroblasts, revealing potential driver proteins involved in CRC. The study's findings provide insights into therapies for improving overall health and preventing CRC.
New research led by Johns Hopkins Medicine reveals that age-related changes in fibroblast cells enable pancreatic cancer tumor growth. The study found that older patients have poorer prognoses due to altered proteins released by fibroblasts, which promote cancer cell growth and spread.
Researchers at NDORMS identified how cells work to resolve frozen shoulder, opening up potential new targets for treatment. The study found that distinct populations of macrophages in the shoulder capsule promote tissue remodelling and reduce inflammation.
Researchers found significantly higher levels of IL-18 expression in osteoarthritis patients and cells compared to healthy controls. IL-17 promoted IL-18 production through the MEK/ERK/miR-4492 axis, indicating potential therapeutic targets for OA treatment.
Researchers at Karolinska Institutet discovered that fibroblasts mediate erection by taking up noradrenaline, widening blood vessels, and increasing the number of cells in response to frequent erections. This knowledge may lead to new treatments for erectile dysfunction.
Researchers found elevated PROX1 levels in advanced colon adenocarcinoma, correlating with poor prognosis. PROX1 modulates CRC cell behavior, influencing invasiveness and survival outcomes. The combined PROX1/α-SMA gene set emerges as a potential CRC prognostic marker.
Researchers at University of Virginia Health System developed a new approach to machine learning that identifies drugs minimizing harmful scarring after heart attacks. The tool predicts and explains drug effects for other diseases as well.
Cancer-associated fibroblasts in the brain secrete fucosylated poliovirus receptor that stimulates breast cancer migration and invasion. The researchers hope these findings will help develop better diagnostic and therapeutic approaches for breast cancer brain metastasis patients.
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.
Researchers at Salk Institute discovered how anti-cancer drugs can prevent fibroblast activation, a protective barrier around pancreatic tumors. The therapy reduces tumor growth and slows disease progression in mice and human patients, offering a promising treatment for pancreatic cancer.
A team of researchers found that fibroblast cells cultured on substrates with varying degrees of stiffness exhibit changes in cell structure, function, and TGF-β activity, which regulates ECM architecture. This study provides insights into how mechanical forces influence wound healing and tissue development.