Rita Levi-Montalcini transformed the modern understanding of how nerve cells develop, survive and communicate. Her discovery of nerve growth factor helped establish an entirely new field of biological research and earned her the 1986 Nobel Prize in Physiology or Medicine.
Her achievement becomes even more remarkable when placed within the circumstances of her life. Barred from university employment by Fascist Italy’s antisemitic laws, she continued her experiments in a makeshift bedroom laboratory. She later built a distinguished career between Italy and the United States, founded a major neuroscience institute and served as a senator for life in the Italian Parliament.
Levi-Montalcini lived to the age of 103, remaining intellectually and publicly active almost until the end of her life. She is remembered not only as one of Italy’s most important scientists, but also as an advocate for education, scientific freedom and opportunities for women.
Early Life in Turin
Rita Levi-Montalcini was born in Turin on April 22, 1909, into a cultured Italian Jewish family. She and her twin sister Paola were the youngest of four children.
Their father, Adamo Levi, was an electrical engineer and mathematician, while their mother, Adele Montalcini, was a talented painter. Rita’s siblings also pursued distinguished careers: her brother Gino became an architect, and Paola became a respected artist.
The family encouraged learning, but Rita’s father held traditional ideas about women’s roles. He believed that a demanding professional career could conflict with the responsibilities of marriage and motherhood. Rita initially received the type of education commonly considered appropriate for a middle-class young woman of the period rather than preparation for university.
By her early twenties, however, she had decided that she wanted to study medicine. After persuading her father, she completed the necessary academic preparation and entered the University of Turin’s medical school.
Medical Training and Giuseppe Levi
At the University of Turin, Levi-Montalcini studied under the prominent histologist Giuseppe Levi. His laboratory emphasized close observation, experimental discipline and the study of cells and tissues under the microscope.
Among the other students associated with Levi’s laboratory were Salvador Luria and Renato Dulbecco. Both would eventually receive Nobel Prizes of their own, making this small Turin scientific circle exceptionally influential.
Levi-Montalcini graduated in medicine and surgery in 1936 with the highest honors. She then began advanced training in neurology and psychiatry while continuing research on the development of the nervous system.
Her promising academic career was interrupted by the Fascist regime.
The Racial Laws and a Laboratory in Her Bedroom
In 1938, Benito Mussolini’s government introduced racial laws that excluded Jewish Italians from universities, schools and many professions. Levi-Montalcini could no longer continue her academic work through normal institutional channels.
For a brief period she worked in Belgium, but the German expansion across Europe made remaining there increasingly dangerous. She returned to Turin and created a small laboratory in her bedroom.
With limited equipment assembled from ordinary materials, she began experimenting on chick embryos. She fashioned instruments herself and obtained fertilized eggs from nearby farms. Giuseppe Levi, who had also been dismissed from his university post because he was Jewish, sometimes worked with her.
These improvised experiments were serious scientific investigations rather than a symbolic act of resistance. Levi-Montalcini was studying how nerve cells form, extend toward their targets and sometimes disappear during embryonic development. The questions she pursued in that bedroom laboratory would define much of her later career.
When Allied bombing made Turin unsafe, the family moved to the countryside, and she reconstructed her laboratory there. After German forces occupied northern and central Italy in 1943, the family fled to Florence and lived under false identities.
Following the liberation of Florence in 1944, Levi-Montalcini worked as a physician in a refugee camp. The experience exposed her to infectious diseases, malnutrition and the immediate human consequences of war. She later decided that laboratory research, rather than clinical medicine, was where she could make her greatest contribution.
From Turin to Washington University
After the war, Levi-Montalcini returned to the University of Turin. Her earlier research had attracted the attention of Viktor Hamburger, a German-born embryologist working at Washington University in St. Louis.
Hamburger invited her to the United States in 1946 to repeat and expand her experiments on the developing nervous system. The initial appointment was intended to last for a limited period, but Levi-Montalcini remained at Washington University for approximately three decades.
Her collaboration with Hamburger began with an apparent scientific disagreement. Hamburger had studied chick embryos in which developing limbs were removed and had concluded that the missing tissue prevented certain nerve cells from forming. Levi-Montalcini’s microscopic observations suggested a different explanation: many nerve cells initially developed but later died because they lacked signals from the tissues they would normally reach.
This distinction was fundamental. It suggested that developing nerve cells depended on substances produced elsewhere in the body for their continued survival.
The Experiments That Led to Nerve Growth Factor
Levi-Montalcini’s decisive research began with observations involving mouse tumors transplanted near chick embryos. The tumors caused an extraordinary proliferation of nerve fibers, which grew toward and around the tumor tissue.
She concluded that the tumors were releasing a substance that stimulated nerve growth. More experiments showed that the effect could occur even when the tumor was not in direct contact with the embryonic tissue. The unknown substance therefore acted as a chemical signal.
Working with biochemist Stanley Cohen, Levi-Montalcini helped identify and characterize the substance that became known as nerve growth factor, or NGF. Research involving snake venom and mouse salivary glands provided particularly rich sources of the factor and made its biochemical study possible.
NGF was the first clearly identified member of a wider family of molecules now called neurotrophins. These signaling proteins help regulate the development, survival, maintenance and function of particular populations of nerve cells.
The discovery changed the way scientists thought about the nervous system. Neurons were not developing according to an entirely fixed internal plan. Their survival could depend on chemical messages received from surrounding tissues and target organs.
What Nerve Growth Factor Does
During development, the body produces more nerve cells than it ultimately needs. Neurons compete for limited quantities of survival signals such as NGF. Cells that establish useful connections and obtain sufficient support survive, while others undergo programmed cell death.
This process helps refine the nervous system into an organized network.
NGF is especially important for certain sensory neurons and sympathetic neurons, although research has revealed more complex functions extending beyond the original developmental model. It also contributes to processes involving pain, inflammation, immunity and the maintenance of nerve cells in adult organisms.
The discovery of NGF helped scientists understand that cells communicate through specific molecular signals controlling growth and survival. This principle became central to developmental biology, neuroscience, cancer research and regenerative medicine.
NGF itself is not a universal treatment for neurological disease, and delivering growth factors safely to specific areas of the human brain remains difficult. Nevertheless, Levi-Montalcini’s work created the conceptual foundation for continuing research into nerve injury, chronic pain and neurodegenerative conditions such as Alzheimer’s disease.
The Nobel Prize
Rita Levi-Montalcini and Stanley Cohen received the 1986 Nobel Prize in Physiology or Medicine “for their discoveries of growth factors.” The award recognized Levi-Montalcini’s work on nerve growth factor and Cohen’s research on epidermal growth factor.
Their discoveries revealed previously unknown mechanisms through which cells regulate growth and differentiation. The Nobel committee emphasized the importance of these findings for understanding developmental abnormalities, degenerative diseases and cancer.
For Levi-Montalcini, the prize represented the culmination of research that had begun under extraordinarily difficult conditions. The scientist once excluded from Italian academic life because of her Jewish identity had become one of the most internationally admired figures in Italian science.
She also received numerous other distinctions, including the Albert Lasker Award for Basic Medical Research and the United States National Medal of Science. In 1968, she became the tenth woman elected to the US National Academy of Sciences.
A Scientific Life Between Italy and America
Although Washington University remained central to her career, Levi-Montalcini gradually reestablished strong scientific ties with Italy.
In 1962, she helped create a research unit in Rome connected with the Italian National Research Council and Washington University. She later directed the National Research Council’s Laboratory of Cell Biology in Rome.
This transatlantic career allowed her to contribute to American neuroscience while helping to rebuild and modernize biological research in postwar Italy. She continued conducting research and supporting younger scientists long after reaching the conventional age of retirement.
In 2002, when she was 93, she founded the European Brain Research Institute in Rome. The institute, now bearing her name, continues research into the brain and nervous system, including neurodegenerative and neuropsychiatric disorders.
Women, Education and Social Commitment
Levi-Montalcini’s public influence extended well beyond the laboratory. As a woman who had overcome both institutional sexism and state-sponsored antisemitism, she became a powerful symbol of intellectual independence.
She rejected the assumption that women were naturally less suited to science. At the same time, she recognized that talent alone was not enough when educational and professional opportunities remained unequal.
Together with her sister Paola, she established the Rita Levi-Montalcini Foundation to support the education of girls and young women in Africa. The foundation viewed education as a way to strengthen personal freedom, social participation and economic independence.
Her humanitarian commitments were consistent with her understanding of scientific work. She regarded knowledge as an international undertaking that should not be limited by nationality, religion, gender or social background.
Senator for Life
In 2001, Italian president Carlo Azeglio Ciampi appointed Levi-Montalcini a senator for life in recognition of her outstanding scientific and social contributions.
The appointment gave her a formal role in Italy’s public life. Despite her advanced age, she attended parliamentary sessions and participated in debates concerning science, education, research funding and ethical responsibility.
Her political presence sometimes attracted criticism in Italy’s deeply divided parliamentary environment. Yet she treated her Senate position as a civic responsibility rather than a ceremonial honor.
She consistently argued that a country unable to support research and educate young people was weakening its own future. Her defense of public investment in knowledge remains relevant to discussions about Italy’s universities, laboratories and loss of young researchers to other countries.
Personality and Philosophy
Levi-Montalcini was known for her elegance, discipline and intense curiosity. She never married and often explained that she had chosen to devote her life to scientific work and public service.
She resisted the idea that aging necessarily meant intellectual decline. Although physical abilities could diminish, she believed that continued curiosity, engagement and purposeful activity could keep the mind active.
Her autobiography, In Praise of Imperfection, expresses one of the central ideas of her life: progress does not emerge from flawless conditions. Scientific discovery often develops through error, uncertainty, interrupted plans and the ability to recognize something unexpected.
Her own career illustrated that principle. Exclusion from the university forced her into a bedroom laboratory, while an apparent disagreement over embryonic nerve development helped lead to a new understanding of cellular survival.
Death at the Age of 103
Rita Levi-Montalcini died at her home in Rome on December 30, 2012, at the age of 103. At the time of her death, she was one of the most recognizable and respected scientists in Italy.
Her long life connected very different periods of Italian history: liberal Turin before Fascism, racial persecution, war and occupation, postwar reconstruction, the expansion of modern biomedical science and the development of contemporary European research institutions.
She had also become the first Nobel laureate to reach the age of 100.
Rita Levi-Montalcini’s Scientific Legacy
Levi-Montalcini’s legacy begins with nerve growth factor, but it does not end there. Her research helped demonstrate that the formation of the nervous system is governed by chemical communication between cells.
That discovery opened paths toward the study of neurotrophins, programmed cell death, neuronal repair and the molecular processes involved in neurological disease. Thousands of later studies have developed from questions raised by her original observations.
Her institutional legacy also continues through the European Brain Research Institute and the scientists she trained, encouraged or inspired. Her social legacy survives in programs supporting women’s education and in her example as a public defender of research.
Among the many figures presented in ItaliaMia’s collection of Italian biographies, Levi-Montalcini occupies an exceptional place. She was simultaneously a physician, experimental scientist, refugee from persecution, Nobel laureate, institution builder and member of Parliament.
Her life also belongs to the wider story of Italian culture: a story that includes not only art, music and literature, but also scientific imagination and the determination to preserve knowledge during periods of political oppression.
Why Rita Levi-Montalcini Still Matters
Rita Levi-Montalcini remains important because her life united scientific achievement with moral courage. She demonstrated that valuable research can begin with limited resources, but she also understood that lasting scientific progress requires strong institutions, educational opportunity and public support.
Her work changed neuroscience. Her personal story challenged discrimination against Jewish scholars and women. Her later life demonstrated that intellectual contribution need not end with age.
The bedroom laboratory, the Nobel ceremony and the Italian Senate may appear to belong to three separate lives. In Levi-Montalcini’s case, they formed a single remarkable journey shaped by curiosity, independence and confidence in the human capacity to learn.
External Sources
Nobel Prize – Rita Levi-Montalcini: Biographical — Autobiographical account of her childhood, education, wartime research and scientific career.
Nobel Prize in Physiology or Medicine 1986 — Official information about the award shared by Rita Levi-Montalcini and Stanley Cohen.
European Brain Research Institute – Rita Levi-Montalcini — Biography and information about the neuroscience institute she founded in Rome.
US National Library of Medicine – The Legacy of Rita Levi-Montalcini — Scientific discussion of nerve growth factor and its continuing significance in neuroscience.
Washington University Bernard Becker Medical Library – Rita Levi-Montalcini — Account of her research career, humanitarian activity and association with Washington University.