T Lymphocyte Collection (page 2)

Budding HIV particle, computer artwork
Budding HIV particle. Computer artwork of an HIV (human immunodeficiency virus) particle (green) exiting a T-lymphocyte (a type of white blood cell, lower left)

AIDS viruses budding from a cell, TEM
AIDS virus particles budding from the membrane of their host cell, coloured transmission electron micrograph (TEM). AIDS is a disease caused by the human immunodeficiency virus (HIV, red)

Coloured TEM of HIV viruses budding from a T-cell
HIV viruses budding from T-cell. Coloured Trans- mission Electron Micrograph (TEM) of HIV viruses budding from an infected T-lymphocyte human blood cell. The cell is at bottom (pink)

Illustration of HTLV-1 infected T4-lymphocyte cell
Illustration of a T4-lymphocyte cell infected with Human T-lymphotropic Virus type I (HTLV-I) which causes leukaemia. The leukaemia is adult T-cell leukaemia-lymphoma

Cell infected with HIV, electronic image
Experts of the Ivanovsky Virusology Institute [USSR Academy of Medical Sciences] have made this electronic image of a cell infected with the AIDS virus

HIV particles exiting a cell, artwork
HIV particles exiting a cell. Artwork of HIV (human immunodeficiency virus) particles exiting a T-lymphocyte (white blood cell). HIV causes AIDS (acquired immune deficiency syndrome)

Small lymphocyte, TEM
Small lymphocyte. Coloured transmission electron micrograph (TEM) showing the large central nucleus (brown) of a small lymphocyte (white blood cell)

T-cell receptor - MHC complex. Computer model showing the molecular structure of a T-cell receptor (TCR, pink and blue) bound to an allogeneic (non-self) major histocompatibility complex (MHC)

Cell infected with HIV, SEM
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (yellow) budding from the membrane of a host cell (red)

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T lymphocytes, also known as T cells, play a crucial role in the immune system's defense against cancer cells. In SEM C001 / 1679 image, we can observe these remarkable blood cells in action. Another fascinating view captured by TEM reveals AIDS viruses budding from a cell, highlighting the importance of T lymphocytes in combating viral infections like HIV. Molecular models such as the T cell receptor (F006 / 9515) and its complex with antigens (F006 / 9339) shed light on how T lymphocytes recognize foreign invaders. The intricate structure of the T-cell receptor B7 molecule (F006 / 9247) further emphasizes their specificity and efficiency in targeting threats to our health. One captivating image shows the binding between a T-cell receptor and an enterotoxin, illustrating how these receptors are capable of recognizing harmful substances and initiating immune responses. This interaction is vital for protecting our bodies from toxins that could cause harm. Moreover, white blood cell antigen presentation images (C016 / 9058 & C016 / 9057) showcase another critical function of T lymphocytes – presenting antigens to other immune cells for coordinated attacks against pathogens or abnormal cells.