biology

MDA-MB231

MDA-MB231 is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand MDA-MB231 rather than just read about it. In short: MDA-MB-231 (M D Anderson - Metastatic Breast - 231) is a human breast cancer cell line isolated at MD Anderson Cancer Center in 1973 that is used in therapeutic research, especially in the context of triple negative breast cancer. History and characteristics MDA-MB-231 cells were derived from a pleural effusion due to an adenocarcinoma originating in a 51-year-old caucasian female.

Key takeaways

MDA-MB231 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect MDA-MB231 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of MDA-MB231 from memory before moving on to harder problems.

Reference excerpt

MDA-MB-231 (M D Anderson - Metastatic Breast - 231) is a human breast cancer cell line isolated at MD Anderson Cancer Center in 1973 that is used in therapeutic research, especially in the context of triple negative breast cancer.

History and characteristics MDA-MB-231 cells were derived from a pleural effusion due to an adenocarcinoma originating in a 51-year-old caucasian female. The cell line is triple negative, meaning it lacks oestrogen receptors, progesterone receptors, and HER2 (human epidermal growth factor receptor 2) amplification which many current treatment options rely on making it difficult to cure. In addition, this cell line has a low expression of the Ki-67 proliferation marker, down regulation of claudin-3 and claudin-4, enrichment for markers associated with the epithelial-mesenchymal transition and the CD44+CD24-/low phenotype associated with breast cancer stem cells and increased metastasis, and is a mutant in the p53 and KRas oncogenes. The cells are considered biosafety level 1. They can be grown in 2 or 3-D cultures.

Research applications MDA-MB-231 is used to study potential treatments for a cancer with currently limited treatment options by either improving current medication delivery and efficacy, or by trying new treatment courses. This cell line has also been utilized to study metastasis to the bones and lungs.

See also List of breast cancer cell lines

References

Worked examples

Example 1 — a first encounter with MDA-MB231

Start with the simplest possible case. Write down what MDA-MB231 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to MDA-MB231 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about MDA-MB231 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of MDA-MB231

In research: MDA-MB231 appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses MDA-MB231 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: MDA-MB231 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Breast cancer cell lines, Human cell lines, so understanding it makes those chapters shorter.
In everyday life: Look for MDA-MB231 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study MDA-MB231 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what MDA-MB231 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain MDA-MB231 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is MDA-MB231 in simple terms?

Why does MDA-MB231 matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study MDA-MB231?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on MDA-MB231.