Lymphocytes are integral in maintaining a robust immune system. These small cells defend the body against infections, viruses and other potentially dangerous agents. But what exactly are lymphocytes? Their functions will also be discussed as will their levels in normal circumstances – this article provides answers.
What Are Lymphocytes and Their Functions? Lymphocytes are white blood cells which play an essential part of our immune systems. These small cells are commonly found within lymph nodes, spleen and bone marrow – as part of a lymphatic system.
Lymphocytes can be divided into three main groups–T cells, B cells and natural killer (NK) cells–each having specific roles to play in fighting infections and diseases.
B cells produce antibodies, which are proteins designed to recognise and neutralise foreign invaders such as bacteria or viruses. Antibodies bind with specific antigens found on pathogens’ surfaces and mark them for destruction by other immune cells.
T cells play various roles within the immune system. Some directly target infected or abnormal body cells while others assist B cells in producing antibodies.
NK cells work to destroy any infected or abnormal cells that come their way, acting together as an effective defense mechanism against harmful invaders and supporting overall immune health.
There are also regulatory T cells which help prevent the immune system from unwittingly attacking its own tissues, known as an autoimmune response.
Lymphocyte counts that are elevated can indicate an infection or inflammation within your body.
Normal Levels of Lymphocytes
Lymphocytes, an important type of white blood cell, play an essential role in protecting our bodies against infections and diseases. Determining normal lymphocyte counts is essential to accurately diagnosing possible health issues.
Healthy adults typically possess between 1,000 to 4,800 lymphocytes per microlitre of blood.
Lymphocytosis or High Lymphocytes
Lymphocytosis, commonly referred to as high lymphocytes, occurs when there are an abnormally high number of lymphocytes present in your blood. Though lymphocytosis could be indicative of various medical issues, it often serves as a reactionary response against infections like mononucleosis and hepatitis virus infections.
An elevated lymphocyte count can typically be identified through routine blood tests. It may be accompanied by various symptoms depending on its cause, including fatigue, enlarged lymph nodes, night sweats, fever and weight loss.
Individuals diagnosed with lymphocytosis may not experience any noticeable symptoms. Additional diagnostic tests may be necessary in order to pinpoint its exact source and provide appropriate treatments.
What does an elevated lymphocyte count imply?
An increase in lymphocyte counts often signals an immune response triggered by various stimuli.