chemistry

Mariano Barbacid

Mariano Barbacid is a chemistry 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 Mariano Barbacid rather than just read about it. In short: Mariano Barbacid Montalbán (born 4 October 1949) is a Spanish molecular biochemist who discovered the first oncogene HRAS. Early life and academic career Barbacid was born in Madrid, Spain on 4 October 1949.

Key takeaways

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Reference excerpt

Mariano Barbacid Montalbán (born 4 October 1949) is a Spanish molecular biochemist who discovered the first oncogene HRAS.

Early life and academic career Barbacid was born in Madrid, Spain on 4 October 1949. He completed his higher education in the Universidad Complutense de Madrid, where he studied chemical sciences, and in the United States, where he started as an intern; years later he was appointed director of the Developmental Oncology Section of the Basic Research Program at NCI-Frederick, a center associated to the National Cancer Institute. He then moved back to his native Spain to lead the newly created CNIO (Centro Nacional de Investigaciones Oncológicas). He also served on the Life Sciences jury for the Infosys Prize in 2011.

Scientific research Barbacid is credited for isolating the human oncogene HRAS in bladder carcinoma. His discovery was published in Nature in 1982 in an article titled "A point mutation is responsible for the acquisition of transforming properties by the T24 human bladder-carcinoma oncogene". He spent the following months extending his research, eventually discovering that such oncogene was the mutation of an allele of the Ras subfamily, as well as its activation mechanism. In 2003, he proved that the enzyme CDK2, until then believed to be indispensable in cellular division, was not necessary in order for DNA replication to take place. In December 2025, he published a paper in PNAS describing a targeted therapy that successfully regressed pancreatic cancer and prevented tumor resistance in a mouse model. This article was retracted on April 27, 2026 due to conflict of interest with its association to the company Vega Oncotargets, created to promote the drugs being evaluated. Barbacid claimed that "the value of my research is not in question" by the retraction and assured to resubmit his study with the required information. However critics stated that such procedure "it isn't a minor question". In January 2026, Barbacid and his group at the CNIO published a study in which a combination of three targeted inhibitors, the established drugs afatinib and daraxonrasib, and a compound used for cancer research named SD36, showed promise in treating pancreatic cancer in animal models.

Publications "A point mutation is responsible for the acquisition of transforming properties by the T24 Human Bladder-Carcinoma Oncogene." (1982). "Direct mutagenesis of HA-RAS-1 oncogenes by N-Nitroso-N-Methylurea during initiation of mammary carcinogenesis in rats." (1985). "Ras genes." (1987). "The TRK proto-oncogene encodes a receptor for nerve growth-factor." (1991). "trkC, a new member of the trk family of tyrosine protein-kinases, is a receptor for neutotrophin-3." (1991). "Genetic analysis of mammalian cyclin-dependent kinases and their inhibitors." (2000). "Toll-like Receptor-4 (TLR4) Down-regulates MicroRNA-107, Increasing Macrophage Adhesion via Cyclin-dependent Kinase 6." (2011)

Awards His scientific career has been awarded with prizes such as the Distinguished Young Scientist Award (1983), the King Juan Carlos I Science award (1984), the Rhodes Memorial award (1985) and the Charles Rodolphe Brupbacher (2005). His effort has also been acknowledged with the Great Cross of the Order of 2 May (2011). Other awards include:

King Juan Carlos I Award (Spain, 1984) Rhodes Memorial Award (USA, 1985) Joseph Steiner Award (Switzerland, 1988) IPSEN Prize in neuronal plasticity (Austria, 1994) Charles Rodolphe Brupbacher Cancer Prize (Switzerland, 2005) International Agency for Research on Cancer Medal of Honor (France, 2007)

References

Illustrations

Worked examples

Example 1 — a first encounter with Mariano Barbacid

Start with the simplest possible case. Write down what Mariano Barbacid claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, 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 Mariano Barbacid 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 Mariano Barbacid 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 Mariano Barbacid

In research: Mariano Barbacid appears in chemistry 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 Mariano Barbacid 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: Mariano Barbacid is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1949 births, 20th-century Spanish biologists, 21st-century Spanish biologists, so understanding it makes those chapters shorter.
In everyday life: Look for Mariano Barbacid 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 Mariano Barbacid in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mariano Barbacid means in your own words.
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Frequently asked questions

What is Mariano Barbacid in simple terms?

Mariano Barbacid Montalbán (born 4 October 1949) is a Spanish molecular biochemist who discovered the first oncogene HRAS. Early life and academic career Barbacid was born in Madrid, Spain on 4 October 1949.

Why does Mariano Barbacid matter?

Because it connects several chemistry 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 Mariano Barbacid?

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 Mariano Barbacid.