Related Experiment Video
Updated: Jun 12, 2025

07:42
A Data-Driven Approach to Quantifying Immune States in Sepsis
Published on: February 7, 2025
148
Why should lymphocytes immune profile matter in sepsis?
Wagner Nedel1, Lílian R Henrique2, Luis Valmor Portela3
1Department of Intensive Care Unit, Conceição Hospital Group, Porto Alegre 91350200, Brazil. wagnernedel@gmail.com.
World Journal of Critical Care Medicine
|June 10, 2025
Summary
Sepsis impairs immune cells called lymphocytes, affecting recovery and increasing infection risk. Understanding lymphocyte dysfunction is crucial for better sepsis treatment and patient outcomes.
Area of Science:
- Immunology
- Critical Care Medicine
- Pathophysiology
Background:
- Global critical illness incidence is rising, with sepsis as a leading cause.
- Sepsis involves impaired immunity, characterized by disrupted lymphocyte function.
- Lymphocyte dysfunction contributes to inflammation, immunosuppression, and poor patient outcomes.
Purpose of the Study:
- To review the role of lymphocytes in sepsis pathophysiology.
- To highlight lymphocytes as potential biomarkers and therapeutic targets in sepsis.
Main Methods:
- Literature review focusing on lymphocyte function in sepsis.
- Analysis of recent advancements in sepsis biomarker research.
- Synthesis of findings on lymphocyte-derived parameters in sepsis prognosis.
Main Results:
- Lymphocytes are key regulators of immune balance, crucial for sepsis response.
- Disrupted lymphocyte metabolism and function are central to sepsis-induced immunosuppression.
- Lymphopenia and neutrophil-to-lymphocyte ratio show prognostic value in sepsis.
Conclusions:
- Targeting lymphocyte dysfunction is a promising strategy for sepsis management.
- Lymphocyte counts and ratios serve as important prognostic biomarkers.
- Further research into lymphocyte roles can improve sepsis patient care.
Related Concept Videos
Factors Affecting the Risk of Infection
11.5K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
11.5K
Defense Against Bacterial Pathogens
1.4K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
1.4K
Disorders of Leukocytes
902
Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
902
Special Features of Adaptive Immunity
766
The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
766

