News tagged with cells

Related topics: protein · cancer cells · cancer · stem cells · immune system

New lung cell type discovered

A recent study has identified a new lung cell type that is implicated in the body's innate immune defense against the bacteria Streptococcus pneumoniae—one of the leading causes of pneumonia worldwide.

Sep 18, 2017
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New link seen between gene fusion and bladder cancer

(HealthDay)—The fibroblast growth factor receptor 3 (FGFR3) transforming acidic coiled-coil containing protein 3 (TACC3) (FT3) gene fusion recruits endogenous TACC3 away from the mitotic spindle, resulting in errors in ...

Sep 18, 2017
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MicroRNA helps cancer evade immune system

The immune system automatically destroys dysfunctional cells such as cancer cells, but cancerous tumors often survive nonetheless. A new study by Salk scientists shows one method by which fast-growing tumors evade anti-tumor ...

Sep 18, 2017
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Altitude training for cancer-fighting cells

Mountain climbers and endurance athletes are not the only ones to benefit from altitude training - that is, learning to perform well under low-oxygen conditions. It turns out that cancer-fighting cells of the immune system ...

Sep 18, 2017
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Cell (biology)

The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life. Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.) The largest known cell is an unfertilized ostrich egg cell.

In 1835 before the final cell theory was developed, a Czech Jan Evangelista Purkyně observed small "granules" while looking at the plant tissue through a microscope. The cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells. All cells come from preexisting cells. Vital functions of an organism occur within cells, and all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.

The word cell comes from the Latin cellula, meaning, a small room. The descriptive name for the smallest living biological structure was chosen by Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.

This text uses material from Wikipedia, licensed under CC BY-SA

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