Articles tagged with Lymphoid Tissue
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A retrospective study of 20 cases of pulmonary MALT lymphoma found characteristic HRCT features such as air bronchogram and bronchiectasis, predominantly in the left upper lobe. Pathologically, tumors exhibited monocytoid and centrocyte-like cells with minimal atypia and B-cell markers CD20 and CD3.
The Wyss Institute's iNodes team has been awarded an ARPA-H Sprint for Women's Health to develop implantable immune organs for treating ovarian cancer. The iNodes concept is based on the formation of lymphoid organs in tumors, which can be reprogrammed to attack cancer cells and retain a long-term immune memory.
A new study led by Weill Cornell Medicine researchers offers insight into the immune mechanisms of inflammatory disease. Group 2 innate lymphoid cells (ILC2s) have an essential role in protecting tissues from parasitic infections and allergic inflammation.
Researchers developed a soft robotic sleeve controlled with a microfluidic chip that reduces treatment cost, weight, and power consumption for lymphedema treatment. The device promotes fluid flow in the lymphatic system by sequentially inflating balloons and pushing fluid upwards.
Researchers have identified a new mechanism of action for extracellular vesicles in the development and progression of lymphomas. sPLA2 secreted by tumor-associated macrophages degrades EV-derived phospholipids, enhancing EV function and inducing vital phenomena. This discovery may lead to new drug targets for cancer treatment.
Researchers develop innovative non-contact agitation technology to assess motility and invasive capacity of cancer cells in tissue sections. The study reveals significant increases in Rac/Cdc42 activity in tumor areas, with stronger correlations found in advanced cancer stages.
Researchers at UNC School of Medicine discovered that VE-cadherin is a key player in the maintenance and function of lymphatic vessels in the heart. However, they found that loss of these vessels was not associated with decreased heart function, contradicting previous assumptions.
A recent study has found that Black women are significantly more likely to develop lymphedema following breast cancer treatment compared to white women. The study, which analyzed data from 304 breast cancer patients, also found that Hispanic women had a higher risk of developing the condition.
Researchers at the University of Würzburg have found that innate lymphoid cells can specialize into killer cells that recognize and kill tumour cells. The study reveals a new transcription factor, Hobit, drives this specialization process.
Researchers at ETH Zurich have discovered that dendritic cells can migrate more quickly to lymph nodes via a newly found pathway during inflammation. This route allows them to bypass the slow and energy-intensive process of entering capillary vessels, enabling faster immune activation and response.
Researchers at the University of Basel have identified immune cells resident in the lungs that persist long after a bout of flu, improving the immune response to reinfection by different strains. The discovery could lead to longer-lasting vaccinations against quickly-mutating viruses.
Researchers have identified isolated lymphoid structures (ILSs) as novel prognostic markers for metastatic colorectal cancer. ILSs, which are integral to the immune system, orchestrate multifaceted immune responses and can predict improved clinical outcomes in patients.
Researchers have generated a single-cell atlas of mouse innate lymphoid cells in the lung, discovering a pool of local progenitors that can generate mature ILC2s. The study reveals the complexity of ILC2 functions and their developmental relationships, shedding light on how they contribute to immune defense and inflammatory diseases.
A team of scientists at Ludwig-Maximilians-Universität München has isolated immune cells from human tonsils obtained following routine surgery, allowing them to analyze the immune response and test anti-inflammatory agents. The new culture system enables researchers to study human lymphoid tissue under physiologically relevant conditions.
Researchers at the University of South Florida have identified key signaling pathways involved in lymphatic valve development and maintenance. The study suggests targeting these pathways may one day be a viable therapy for patients with lymphedema, a debilitating disease characterized by chronic swelling and fluid buildup.
A new study from King's College London found a way to generate protective CD8 T-cells using skin vaccination, which could be used as a vaccine strategy for STIs. The researchers developed a dissolvable 'microneedle' patch that releases the vaccine, attracting immune cells to the genital tissues.
The study aims to explore the differences between B cells and antibody-secreting cells in accessible and inaccessible tissues, which may impact autoimmunity, transplant rejection, and resistance to infections. The researchers will analyze tissue samples from 90-100 donors over five years.
A new mouse model shows enhancing lymph vessel formation via VEGF-D stimulation in obese adipose tissue has beneficial anti-inflammatory and metabolic effects. This approach may provide a new target for ameliorating the metabolic syndrome associated with obesity.
A study published in Immunity reveals that T regulatory cells have tissue-specific receptors and adaptations to localize themselves in specific tissues. This discovery could lead to the development of targeted therapies for autoimmune diseases by manipulating therapeutic T cells to specific locations in the body.
Researchers have identified how a new treatment in mice can regenerate the heart after a heart attack by promoting growth of lymphatic vessels and clearing immune cells. This approach showed significant reduction in damaged heart muscle and improved recovery of pumping function.
Researchers at Helmholtz Zentrum München discovered a previously unknown pathogenic mechanism underlying COPD. By targeting the oxysterol pathway, they were able to prevent iBALT formation and immune cell migration, halting inflammation in an experimental model.
Research at the University of Helsinki found that diabetic retinopathy is characterized by the growth of new lymphatic vessels in the eye. The study suggests that targeting both lymphangiogenesis and angiogenesis may lead to novel treatments for ischemia and inflammation-associated retinal diseases.
A Salk Institute study has discovered that nearly 80 percent of genes exhibit daily fluctuations, with the most rhythmic genes peaking in early morning and late afternoon. This finding has significant implications for understanding circadian disruption's impact on diseases such as depression and heart disease.
Researchers at Karolinska Institutet discovered that oxysterols stimulate specific immune cells to form lymphoid tissue in both health and disease. Oxysterols also contribute to chronic inflammation in ulcerative colitis, leading to tissue damage.
Researchers at Boston University are developing a novel approach to deliver anti-retrovirals directly to lymphatic tissues to combat HIV replication. This targeted approach aims to improve drug penetration and eradicate virus reservoirs.
Researchers developed CUBIC, a technique making human organs transparent for better pathological diagnosis. This method surpasses current methods in its ability to observe whole organs and detect metastatic carcinomas.
The study found that Zika virus can persist in cerebrospinal fluid, lymph nodes, and colorectal tissue of infected rhesus monkeys for up to 42 days and 72 days respectively. The virus persistence may contribute to neurological issues associated with Zika infection in humans.
A new study funded by NIH suggests that ongoing HIV replication in lymphoid tissues maintains stores of the virus, a prerequisite for achieving a cure. Current ART regimens cannot eliminate persistent viral reservoirs, but sequencing data shows continued evolution over time without accumulating drug-resistant mutations.
Blood T cells are resistant to HIV's primary death pathway, but not lymphoid tissue T cells. The researchers suggest that studying lymphoid tissue T cells could lead to a better understanding of the virus and potentially new treatments.
Researchers at Institut Pasteur successfully inhibit enzyme DPP4 to increase T lymphocyte infiltration into tumors, leading to efficient cancer cell destruction. This innovative treatment combines with existing immunotherapies to eradicate tumors in mice.
Research found that drugs used to treat HIV penetrate poorly into lymphatic tissues, allowing persistent low-level virus replication. This replication may contribute to chronic immune activation and accelerated aging in patients.
Researchers at ETH Zurich discovered that IL-7 enhances lymphatic vessel drainage, a crucial function that could improve lymphedema treatment outcomes. This finding may help prevent or alleviate fluid accumulation and tissue swelling in patients with compromised lymphatic systems.
A new study has compared the effectiveness of two diagnostic procedures for sarcoidosis: endosonography and bronchoscopy. The researchers found that endosonography resulted in a significantly higher diagnostic yield, detecting granulomas more often than bronchoscopy.
Researchers at IST Austria found that immune cells follow gradients of guidance cues, which are bound to the tissue, to navigate through the skin. The cells use a mixed strategy, combining sensing of soluble and insoluble cues, to find their way back to lymphatic vessels.
A Stanford study identifies proteins in the blood that can accurately detect lymphedema, offering hope for early diagnosis and treatment. The biomarker panel shows high accuracy in distinguishing patients with lymphedema from healthy individuals.
Researchers identify innate lymphoid cells as key players in limiting commensal bacteria to intestinal tissues. The study suggests that targeting these immune cells or specific bacterial groups may be useful in treating chronic inflammatory diseases.
Researchers at Trudeau Institute found a link between the formation of new lymphoid tissue in the lungs and protection from tuberculosis. The study, published in The Journal of Immunology, may lead to improved vaccines and therapies for fighting deadly disease.
Intestinal ischemia/reperfusion damages the intestine's lining, allowing bacteria to enter the bloodstream. Caveolin-1 modulates endothelial nitric oxide synthase activity to regulate innate immunity. Development of intestinal lymphoid follicles relies on dendritic cell recruitment.
Researchers Norrmén et al identified Foxc2 and NFATc1 as key transcription factors in lymph vessel development. These factors work together to build lymph vessel valves, a critical aspect of the lymphatic drainage system.
A multicenter study found EUS elastography to be highly sensitive and specific in distinguishing benign from malignant tissue, with a sensitivity of 92.3% for pancreatic lesions and 91.8% for lymph nodes. The technique may help characterize pancreatic masses after negative EUS-FNA and increase the yield of EUS-FNA for lymph nodes.
Duke researchers found that a blood-derived lymph node dendritic cell type plays a key role in developing acute T-cell responses. This discovery challenges traditional views on dendritic cell function and has implications for vaccine science and autoimmune disease therapy development.
Researchers found that bone marrow stem cells protected gastrointestinal tissue from autoimmune attack in a mouse model, allowing the regeneration of the gastrointestinal lining. MSC therapy may become a useful treatment for inflammatory bowel disease.
A unique surgical case presented a patient with heterotopic gastric tissue simulating acute appendicitis. The inflammation from the gastric tissue caused localized pain and elevated white blood cell count. Removal of the inflamed lymph node containing the gastric tissue resolved the symptoms.
Researchers identified a critical role for the hormone adrenomedullin in forming the lymphatic system, which could lead to new treatments for lymphedema. Targeting this hormone may also prevent cancer cells from spreading through lymphatic vessels.
Researchers found HIV survives treatment by hiding in gut mucosa, suppressing immune function. Early antiretroviral treatment and anti-inflammatory medications may improve treatment outcomes. Restoration of gut immune function is crucial to ridding the body of the virus.
Researchers at Ohio State University Comprehensive Cancer Center identified the four stages of natural killer cell maturation in secondary lymphoid tissue, such as tonsils and lymph glands. This discovery could lead to new therapies for cancer, infection, and immune deficiencies, advancing our understanding of the human immune system.
Research discovers T-cell 'traffic control' system that prevents autoimmune disease and rejection of transplanted organs, promising new treatment for multiple sclerosis and transplant rejection. The system is controlled by a fat-like compound called S1P, which can be blocked with experimental drugs to prevent excessive T cell activity.
Researchers traced how SIV spreads through the mouth, digestive tract, and lymph nodes after oral infection, identifying key tissues and organs infected. The findings may lead to a better understanding of early infection and the development of an effective HIV vaccine.
A 39-year-old woman gave birth to a healthy baby girl after undergoing orthotopic autotransplantation of cryopreserved ovarian tissue. This procedure bypasses the need for in-vitro fertilization, offering new hope for young cancer patients facing premature ovarian failure.
Two independent studies successfully selected and expanded gene-corrected human stem cells using a novel drug-resistance gene. This breakthrough may be useful in human clinical trials of gene therapy for bone marrow transplantation settings. Additionally, upregulation of Irs2 promotes beta cell growth, survival, and insulin secretion, ...
Dr. Pandelakis Koni has developed an animal model to study autoimmune diseases, including multiple sclerosis and type 1 diabetes, by selectively stopping the immune response. The mouse model allows researchers to understand how dendritic cells trigger the immune system and develop strategies to prevent autoimmunity.
UK researchers have made significant progress in preserving fertility for women with cancer by grafting ovarian tissue from cancer patients into mice, demonstrating safety and feasibility. The study has raised hopes for women who require immediate treatment or lack a partner, offering an alternative to embryo freezing.
Researchers developed a highly sensitive immunoblot method to detect PrPSc in vCJD tissues, revealing its presence in lymphoid tissues and high concentrations in tonsil. The findings suggest new models for risk-management and highlight the need for further investigation into peripheral tissue transmission.
Researchers have created a laboratory model of AIDS by infecting tonsil tissue with HIV. The model reveals that changes in the virus's properties lead to immune system deterioration and supports the idea that environmental factors contribute to AIDS development.