What is stroma?

What Does stroma Mean

The first thing we are going to do is know the etymological origin of the term that we are now dealing with. In this case we can state that it is a word that derives from the Greek, exactly from "stroma", which can be translated as "tapestry".

The concept is used in the field of biology to name the fabric that, in a tissue, supports cells .
It can be said that the stroma is a class of connective tissue that supports another type of tissue (the parenchyma ), which develops different actions in the organ . However, the stroma and the parenchyma interact in various ways and neither can fulfill its functions without the other.

Beyond this, it is often stated that the stroma is the supporting tissue, without other specific functionality, while the parenchyma is the tissue that, due to its characteristics, makes the organ become functional.
In recent years, scientists have studied the role of the stroma in the advancement of cancer in an organism. It has been found that, in certain classes of cancer, tumor cells are surrounded by the stroma, whose non-tumor cells influence the progress of the disease.
Although it is still being investigated, it is believed that fibroblasts (the type of cell that appears in greater proportion in the stroma) would promote the production of a protein that affects the invasiveness of tumor cells. On the other hand, the stroma around these cells would contribute to the spread of the tumor through the blood and would undermine the effectiveness of the drugs.
Also, we have to know that there are gastrointestinal stromal tumors. These come to be diseases that occur when abnormal cells form in the tissues of the gastrointestinal tract. Among the symptoms that indicate the existence of those are some such as vomiting, intense pain in the abdomen, difficulty swallowing, constant feeling of fatigue or the appearance of blood in the stool, for example.
These tumors can be malignant or benign and, as a general rule, they usually appear in the small intestine and stomach. To detect them, it will be necessary for the doctor who handles the patient's case not only to undergo a physical examination but also to inquire about his history and perform a computed tomography as well as an MRI or an endoscopy.
In the same way, we cannot ignore the existence of what is known as a corneal stroma. It is a part of the cornea, as its name indicates, which occupies around 90% of its thickness, which is approximately 500 microns thick and whose structure is composed of matrix, collagen fibers and even keratocytes.
Finally, in the field of botany , the stroma is the inner zone of the plasto . It is a compartment that houses the enzymes that are needed for the development of photosynthesis reactions that do not need light.

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