scispace - formally typeset
Search or ask a question

What are the mechanisms that control the survival and function of long-lived plasma cells? 


Best insight from top research papers

Long-lived plasma cells, also known as memory plasma cells, are able to persist for long periods of time and continue to secrete antibodies. The survival and function of these cells are regulated by several mechanisms. One key regulator is the soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) molecule Sec22b, which is essential for plasma cell survival and the humoral immune response . The microenvironment also plays a crucial role in the survival of long-lived plasma cells. Factors in the microenvironment, such as prosurvival factors and integrin-mediated contact with stromal cells, provide essential survival signals to the plasma cells . Additionally, the activation of signaling pathways, such as NF-kB- and PI3K-dependent pathways, and the prevention of apoptosis through the downregulation of caspases, contribute to the survival and function of long-lived plasma cells . These mechanisms collectively ensure the persistence and functionality of long-lived plasma cells in the immune system.

Answers from top 5 papers

More filters
Papers (5)Insight
The mechanisms that control the survival and function of long-lived plasma cells include integrin-mediated contact with stromal cells and the cytokines BAFF and APRIL.
The mechanisms that control the survival and function of long-lived plasma cells are the signals provided by dedicated survival niches in the bone marrow, such as secreted factors APRIL and direct contact with stromal cells. These signals activate NF-kB- and PI3K-dependent signaling pathways to prevent cell death.
Open accessJournal ArticleDOI
Brian T. Gaudette, David Allman 
11 Citations
The paper does not provide information about the mechanisms that control the survival and function of long-lived plasma cells. The paper focuses on the biochemical processes involved in plasma cell genesis and secretion of antibodies.
The paper discusses the generation of IgE+ long-lived plasma cells (LLPCs) and the prosurvival factors in their microenvironment, but does not clearly identify the mechanisms that control their survival and function.
The paper does not provide information about the mechanisms that control the survival and function of long-lived plasma cells. The paper focuses on the role of the SNARE molecule Sec22b in plasma cell survival and its implications for antibody-mediated immunity.

Related Questions

How does the body regulate heat in plasma to maintain proper physiological processes?4 answersThe body regulates heat in plasma to maintain proper physiological processes through a process called thermoregulation. Thermoregulation involves the interaction of various control systems, including the cardiovascular, metabolic, respiratory, osmoregulatory, and thermal control systems. These systems work together to stabilize body temperature, primarily through negative feedback loops. The central nervous system acts as a controller network, activating effector mechanisms such as metabolic heat production, sweat production, and vasomotoric action in response to deviations from the set-point temperature. Heat flow, or thermodynamics, occurs through the exchange of thermal energy between the blood and the skin. The body's heat regulation also involves behavioral thermoregulation, which impacts energy and water resources to a lesser extent than autonomic effectors. Overall, the regulation of heat in plasma is a complex process influenced by various physiological and environmental factors.
What's the role of plasma cell in promoting multiple myeloma?4 answersPlasma cells play a crucial role in promoting multiple myeloma. The interaction between myeloma cells and the components of the bone marrow microenvironment, such as stromal cells, adhesion molecules, cytokines, and the extracellular matrix, is considered crucial in the pathogenesis of multiple myeloma. Activator Protein-1 (AP-1) transcription factors, including c-Maf, c-Jun, and JunB, are dysregulated in multiple myeloma and are associated with cell proliferation, survival, drug resistance, angiogenesis, and bone disease. Plasma cells also alter the stromal tissue of the bone marrow, leading to enhanced survival and growth of myeloma cells. An increase in the number of mesenchymal stromal cells, along with a decrease in osteoblasts, is observed in the bone marrow of myeloma patients, and these mesenchymal stromal cells express factors that activate plasma cells and osteoclasts, promoting the progression of myeloma. Therefore, plasma cells contribute to the pathogenesis and progression of multiple myeloma through their interaction with the bone marrow microenvironment and dysregulation of AP-1 transcription factors.
What are the factors that contribute to the survival of cells in T1D blood?3 answersThe factors that contribute to the survival of cells in T1D blood include the expression levels of glucagon-like peptide 1 receptor (GLP-1R). Additionally, the roles of stem cells and circulating IGF/IGFBP3 in controlling colonic stem cell function have been implicated in T1D patients. Glucose-stimulated β cells secrete insulin B chain peptides that are relevant to autoimmunity in T1D. Oxidative stress response, DNA repair, inflammation, and apoptosis are also important biological functions in T1D pathogenesis. Furthermore, vitamin D plasma levels and the genotype of the vitamin D binding protein (DBP) have been associated with the immune balance in T1D patients.
What are the function of plasma membrane?5 answersThe plasma membrane has multiple functions in the cell. It acts as a selective barrier, protecting the cell from the extracellular environment. It also regulates cellular events that originate at the cell surface, playing a key role in various biological processes essential for cell homeostasis. The plasma membrane is involved in the production of reactive oxygen species (ROS) under normal and stressed conditions, which mediate cell growth and downstream signaling pathways. Additionally, the plasma membrane serves as a platform for immune cells to trigger signaling cascades and immune responses against pathogens or tumor cells. It also localizes and directs signals, allowing for specific signal transduction and concentration of redox targets. Overall, the plasma membrane maintains cell integrity, facilitates cell communication with the outer environment, and plays a crucial role in various cellular processes and signaling pathways.
How can gene therapy last?10 answers
How long can B cells live?2 answers

See what other people are reading

What are the links between allergies and neuroinflammation?
5 answers
Allergies have been associated with neuroinflammation through the involvement of mast cells (MCs). MCs, known for their role in allergic reactions, can contribute to neuroinflammation by releasing inflammatory mediators, affecting the blood-brain barrier (BBB) integrity, and interacting with glial cells and neurons. Studies suggest that MC activation may play a part in the pathogenesis of neurodevelopmental disorders like attention deficit hyperactivity disorder (ADHD). Furthermore, MCs have been implicated in exacerbating CNS damage in conditions such as brain ischemia and hemorrhage, while also potentially playing a protective role in traumatic brain injury. The intricate relationship between allergies, MC activation, and neuroinflammation underscores the complex interplay between the immune system and the central nervous system in various pathological processes.
Are vaccines effective against Covid-19?
5 answers
Vaccines have shown significant effectiveness against Covid-19 in various aspects. Meta-analyses have highlighted that vaccination significantly reduces the severity of clinical outcomes in infected individuals, including lower infection rates, reduced ICU admissions, hospitalizations, and ventilation requirements. Different types of Covid-19 vaccines have demonstrated varying levels of effectiveness, with mRNA-based vaccines like Moderna showing the highest efficacy after both first and second doses. Real-world studies have further confirmed the effectiveness of vaccines in preventing asymptomatic and symptomatic infections, hospitalizations, and deaths, with vaccines like BNT162b2 (Pfizer) and Sputnik V showing high effectiveness rates. Additionally, comparisons between different vaccines have indicated that mRNA vaccines are the most efficacious in preventing symptomatic Covid-19 infections compared to inactivated virus and viral vector vaccines.
What are the effects of smoking tobacco?
5 answers
Smoking tobacco has a detrimental impact on human health, leading to a wide array of severe conditions. Tobacco smoke contains over 7000 toxins, with at least 70 being carcinogenic, causing over 7 million deaths annually worldwide. It significantly increases the risk of various diseases, including Chronic Obstructive Pulmonary Disease (COPD) and gastrointestinal disorders like peptic ulcers and cancers of the gastrointestinal system. Furthermore, smoking not only affects the respiratory system but also contributes to cardiovascular diseases, lung cancer, and even psychological dependence due to nicotine addiction. Passive smoking is also harmful, leading to respiratory issues, cardiovascular diseases, and even infant death syndrome. Overall, tobacco smoking is a major public health concern due to its association with a multitude of fatal illnesses and reduced life expectancy.
How do vaccinations improve covid immunity?
4 answers
Vaccinations play a crucial role in enhancing COVID-19 immunity by stimulating both humoral and cellular immune responses. They have been shown to significantly increase antibody levels against SARS-CoV-2, including the receptor-binding domain (RBD) and nucleocapsid protein (NP). Furthermore, COVID-19 vaccines can boost the immune system's ability to produce neutralizing antibodies, providing protection against different variants like Delta and Omicron. Vaccination also leads to the development of SARS-CoV-2-specific T cells, which play a vital role in recognizing and fighting the virus. Overall, vaccines not only improve antibody responses but also enhance the breadth and potency of the immune system's defense mechanisms, effectively reducing the risk of reinfection and severe COVID-19 outcomes.
Why do tils need il2?
5 answers
Tumor-infiltrating lymphocytes (TILs) require IL-2 for their expansion and activation. IL-2 plays a crucial role in the ex vivo expansion of TILs, which is essential for effective adoptive transfer immunotherapy in cancer treatment. Studies have shown that IL-2, along with IL-15 and IL-21, promotes the expansion of TILs with a central memory phenotype, enhancing their reactivity against tumor cells. Additionally, IL-2 administration is associated with the depletion of regulatory T cells, further boosting the efficacy of TILs in targeting tumors. Therefore, IL-2 is a key component in the process of growing and activating TILs, making it essential for the success of adoptive T cell therapy in cancer patients.
Is 120 mbq of 177-lu-psma safe in mouse model for prostate cancer?
5 answers
In preclinical studies, the safety and efficacy of [177Lu]Lu-PSMA in mouse models of prostate cancer have been evaluated. Various doses of [177Lu]Lu-PSMA have been tested, including 60 MBq and 80 MBq, showing promising results in terms of tumor growth inhibition and immune response induction. Additionally, studies have investigated different 177Lu-labeled ligands, such as [177Lu]Lu-PSMA-Q and [177Lu]Lu-Ibu-DAB-PSMA, demonstrating significant anti-tumor effects and therapeutic potential with doses up to 10 MBq per mouse. Furthermore, a novel therapeutic radioligand, [177Lu]Lu-1h, showed high tumor uptake and extended blood circulation, leading to improved survival rates in mice treated with 4-6 MBq doses. Therefore, based on these preclinical findings, a dose of 120 MBq of [177Lu]Lu-PSMA may not be considered safe in mouse models due to potential toxicity concerns.
How much 177-lu-psma activity is needed for sufficient immune activation?
5 answers
The immune activation induced by [177Lu]Lu-PSMA therapy is dose-dependent, with significant effects observed at 60 MBq in terms of immunogenic cell death (ICD) markers like cell surface CRT, HMGB1 release, and ATP release. Additionally, [177Lu]Lu-PSMA treatment resulted in delayed tumor growth and prevented tumor growth in approximately 50% of cases upon rechallenge, indicating immune activation. Furthermore, the combination of 177Lu-PSMA-617 with pembrolizumab showed promising immune activation with a PSA50-RR of 76% in metastatic castration-resistant prostate cancer patients. Therefore, a sufficient immune activation response can be achieved with an activity of 60 MBq of [177Lu]Lu-PSMA, as evidenced by the observed immunogenic cell death and tumor growth inhibition in preclinical and clinical studies.
What are the long term effects of low doses of UV-C light on perenial plant growth and development?
5 answers
Low doses of UV-C light have shown various beneficial effects on perennial plant growth and development. Studies suggest that UV-C radiation can enhance plant resistance against insect pests, induce anti-herbivore resistance, reduce aphid populations, and elicit host resistance without negatively affecting plant physiology. Additionally, UV-C exposure can stimulate plant growth in a controlled environment, potentially optimizing indoor plant growing recipes. Furthermore, preharvest hormetic doses of UV-C radiation have been found to decrease susceptibility to infections, stimulate plant defenses against diseases, and increase the concentration of bound phenolics in plants. Overall, low doses of UV-C light may have long-term positive effects on perennial plant growth by enhancing resistance to pests and diseases, improving physiological responses, and potentially increasing the concentration of important compounds.
What is the difference between cryoablation in solid organs and cryoablation in the lung?
5 answers
Cryoablation in solid organs and cryoablation in the lung differ in their applications and outcomes. Solid organ cryoablation, such as for tumors, has shown better tumor response and faster recovery over time, especially when combined with immunotherapy. In contrast, lung cryoablation, particularly for metastatic lung cancers, has been conducted using liquid nitrogen and has demonstrated efficacy in treating tumors <2.2 cm, with varying local control rates based on tumor size and histological type. Additionally, cryoablation in the lung can lead to complications like pneumothorax. Both types of cryoablation aim to induce tumor necrosis and stimulate the immune system, but the specific techniques and outcomes vary based on the organ being treated.
Where is ACE2 expressed?
5 answers
ACE2 is expressed in various locations within the human body. In Alzheimer's disease, ACE2 is mainly found on the surface of brain endothelial cells. Human spermatozoa express ACE2 uniformly on the sperm head and flagellum, with the short-ACE2 isoform concentrated in the post-acrosomal region and midpiece. Additionally, ACE2 is present in different tissues, with unique regulation and expression levels in mice and humans, influencing susceptibility to SARS-CoV-2 infection and the subsequent host response. The expression of ACE2 in spermatozoa and its potential role in male reproduction warrant further investigation to understand its implications fully.
How does inflammation contribute to the development and progression of stroke?
5 answers
Inflammation plays a crucial role in the development and progression of stroke by impacting both the brain and peripheral organs. The acute inflammatory response post-stroke exacerbates brain injury, while systemic inflammation from peripheral organs like the spleen, lymph nodes, and gastrointestinal system also significantly contributes to secondary cell death in stroke. Moreover, infectious diseases and systemic inflammation increase the risk of stroke by interacting with hemostasis disturbances, endothelial damage, and cytotoxic lymphocytes activation. Atherothrombotic stroke, a common subtype, is driven by an inflammatory process in the vascular wall, leading to atherosclerosis and acute vascular events. Understanding these inflammatory mechanisms is crucial for developing effective therapeutic strategies to mitigate stroke pathology.