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Updated on Sep 4, 2024 Share

What Is Counterflow Centrifugation Elutriation? Centrifuges are one of the most commonly utilized laboratory instruments, applicable for cell separation, purification, and harvesting. Counterflow centrifugation elutriation (CCE) is a liquid clarification technique that separates cells suspended in a solution by size and stage. This process operates based on the differing sedimentation rates of cells or particles of different sizes in a liquid medium under centrifugal force.  CCE is a valuable method …

Updated on Dec 9, 2024 Share

What Is Apoptosis? Cell death is a natural and normal part of the human body’s maintenance mechanisms. Apoptosis means the steady process of programmed cell death that occurs to aid in the body’s growth and development.  Apoptosis regulates the life and death of cells, which affects several body processes like cell turnover, growth, immune functioning, hormone distribution, and hormone atrophy. Cell survival or death directly impacts the immune system’s population …

Updated on Jul 31, 2024 Share

What Is a Cell Growth Factor? Cells grow in size as they move through the cell cycle toward eventual mitosis and cytokinesis, or cell division. To move from one stage of cell growth to the next, cells require the stimulation of surface receptors to pass entry checkpoints at each phase of the cell cycle. These signals come from cyclin-dependent kinases (CDK) and their cyclin components.  Growth factors are an extracellular …

Updated on Dec 9, 2024 Share

During a potential infection, the immune system relies on accurate and robust cellular activation and expansion. The massive release of activated effector cells can lead to major inflammation. Although this inflammation is necessary to quell the potential infection, the immune system provides safeguards against uncontrolled inflammation to protect the host from damage.  The immune system implements checkpoints and controls to manage the number of active T cells and inflammation during …

Updated on Dec 9, 2024 Share

What Is T Cell Transduction? The recent development of adoptive cell therapies that specifically and effectively target cancer cells has transformed the field of oncology and the pharmaceutical industry. Early treatments focus on the autologous transfer of a patient’s own cells that have been modified to target their cancer, but newer allogeneic therapies, the transfer of modified cells from a healthy donor, have significant benefits. Modified cells are more readily …

Updated on Dec 9, 2024 Share

Peripheral blood circulates within the human body carrying nutrients, chemical messengers, water, and a wide variety of cell types. An array of bone marrow-derived hematopoietic cells – white blood cells and red blood cells – distribute into all areas of the body to defend against invaders and carry oxygen, respectively The most common clinical use for whole blood involves trauma or serious injury in which the patient has lost significant …

Updated on Aug 21, 2023 Share

Cell separation is an integral step in various research areas including, but not limited to, immunology, cell therapy, and single cell sequencing. The isolation of a specific cell population allows the behaviors of the individual cell type to be studied without interference from other cells. The cellular isolation strategy varies depending on the cell subset of interest.  Deciding on an isolation strategy is also dependent on the sample matrix. Cell …

Updated on Dec 9, 2024 Share

B cells and T cells share a common goal: to protect the human body from harmful pathogens. While some cell subsets are more commonly known than others, each cell type is essential to maintaining health. For example, B cells are commonly known, but what some may not realize is their function is to make antibodies, regulatory proteins, and cytokines to aid lesser known effector T cells. To fully understand the …

Updated on Dec 3, 2024 Share

Antigens are molecules present on the surface of cells that bind to receptors on antibodies or on the surface of lymphocytes. Antigens are classified based on where they originate, and the immune system discriminates between native and foreign antigens in order to fight against pathogens. Immunology research utilizes the binding properties of antigens with antibodies in order to detect, track, and isolate specific cell populations within blood samples. Self vs …

Updated on Nov 21, 2024 Share

In working with biological samples for life science research, sample preparation is a critical first step to isolate the specific cells of interest from a complex mixture. This is especially true when looking to isolate rare cells of low abundance, and it is critically important when working with delicate cell types that the sample preparation method used for cell isolation is exceptionally gentle so that it does not interfere with …