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Jérôme Jean Louis Marie Lejeune (June 13, 1926 – April 3, 1994) was a French pediatrician and geneticist, best known for discovering the link of diseases to chromosome abnormalities and for his subsequent opposition to prenatal diagnosis and abortion. There is currently a controversy over the allocation of discovery. Marthe Gautier criticized publicly Jérôme Lejeune for claiming full credit for the discovery of Trisomie 21, without specifying that the laboratory work was essentially hers.

Biography

Discovering Trisomy 21

In 1958, while working in Raymond Turpin’s laboratory with Marthe Gautier, Jérôme Lejeune reported that he had discovered that Down syndrome was caused by an extra copy of chromosome 21. According to Jérôme's laboratory notebooks he made the observation demonstrating the link on May 22, 1958 however Marthe Gautier has since claimed that it was she who made the discovery, and that Jérôme took the credit and published her work without notifying her. The discovery was published in French Academy of Sciences with Lejeune as first author, Gautier as second author and Turpin as senior author. This discovery was the first time that a defect in intellectual development was shown to be linked to chromosomal abnormalities.

Origins of the discovery

In the early 1950s, Lejeune joined the department headed by Dr. Turpin, who suggested that Lejeune focus his research on the causes of Down syndrome. As early as 1953, the two men showed a connection between an individual’s characteristics and his or her dermatoglyphs—a term referring to fingerprints and lines on the hand. The structure of these lines, which remain the same throughout the individual's life, is determined during the earliest stages of embryo development. As Lejeune and Turpin studied the hands of children with Down syndrome, they deduced that their dermatoglyphic anomalies appeared during embryo formation. After making many more observations, Dr. Lejeune concluded that the anomalies resulted from a chromosomal accident. Using a new tissue culture technique brought back from the United States by his colleague Marthe Gautier, Lejeune began working with her to count the number of chromosomes in children with Down syndrome.

The laboratory notebook begun by Dr. Lejeune on July 10, 1957 indicates that on May 22, 1958, he succeeded in showing, for the first time, the presence of 47 chromosomes in a child with Down syndrome. This was only two years after Tjio and Levan had proven that the human species has 46 chromosomes. On June 13, 1958, Dr. Lejeune identified an additional case, and a photo of the karyotype met with skeptical interest at the International Congress of Genetics in Montreal. The international community did not grasp the full impact of his discovery until January 26, 1959, when the French Academy of Sciences published the team’s first paper presenting three case studies of children with Down syndrome.

Marthe Gautier, a colleague of Lejeune's, disputes this account, stating that she worked without assistance from Lejeune to develop the necessary cytological and histological resources and techniques, and used these to prepare microscope slides showing the trisomy. By her account of events, Lejeune took her slides away under the pretence of having them photographed for her, but instead presented them as his own work at a conference and in a subsequent publication. Gautier's version of events has been well received, and in 2014 the genetics community recognized her discovery of trisomy 21 by a Grand Prize award at the 7th Human and Medical Genetics Congress in Bordeaux.

On March 16, 1959, another presentation to the Academy of Sciences confirmed the team’s initial publication, this time covering nine cases. In April 1959, the English team of Brown and Jacobs corroborated these results, citing the initial January 1959 publication by Lejeune, Gautier, and Turpin. “Mongolism” had become Trisomy 21. The discovery opened up a new field of investigation for modern genetics and laid the foundation for a new discipline: cytogenetics.

Later Research and Recognition

Continuing his work in genetics, Lejeune described several other diseases related to chromosomal abnormalities. In 1964 he identified Cri du Chat Syndrome, caused by a missing segment in the short arm of chromosome 5, and in 1966 he described 18q-Syndrome, which results from loss of the distal portion of the long arm of chromosome 18. Lejeune also discovered the Dr phenotype (a malformation syndrome in which a ring-shaped chromosome replaces chromosome 13), and he identified trisomies on chromosome 9 in 1970 and chromosome 8 in 1971.

In a 1963 presentation before the French Academy of Sciences, Lejeune showed that monosomy—the absence of a specific segment of the genome—could also result in a clinically recognizable disease.Several years later, a group of American scientists came to Paris to conduct an independent investigation of Lejeune’s discovery, and in 1962 the President of the United States personally presented him with the Kennedy Prize. In 1964, the first chair of human genetics was created at the Paris School of Medicine, and Lejeune was named to fill it. The appointment was highly unusual: Only a groundbreaking discovery allowed a candidate to be named a professor of medicine without successfully completing a competitive residency examination.

In 1969, Lejeune's work earned him the William Allan Award, granted by the American Society of Human Genetics, the world’s highest honor in genetics. As of 2013 he was the only Frenchman to have won it.

Pro-life Work

Although Lejeune’s discoveries paved the way for new therapeutic research into how changes in gene copy number could cause disease, they also led to the development of prenatal diagnosis of chromosome abnormalities and thence to therapeutic abortions of affected pregnancies. This was very distressing to Lejeune, a staunch Catholic, and led him to begin his fight for the pro-life cause.

After receiving the Allan prize, Lejeune gave a talk to his colleagues which concluded by explicitly questioning the morality of abortion, an unpopular viewpoint in the profession. In a letter to his wife, Lejeune wrote "today, I lost my Nobel prize in Medicine".

In 1975, after one of his public appearances in Paris on the beginning of life, Lejeune met Dr. Wanda Poltawska, director of the Catholic Institute for the Family in Krakow. Later that year, Poltawska contacted Lejeune twice, asking him to speak at conferences on the beginning of life that she was organizing with one of her close friends, Monsignor Karol Wojtyla, then Cardinal-Archbishop of Krakow. On October 16, 1978, Wojtyla was elected Pope John Paul II. On May 13, 1981, a few hours before the attempt on his life, he had lunch with Lejeune and his wife.

Afterward, Lejeune regularly traveled to Rome to meet with the Pope, to attend meetings of the Pontifical Academy of Sciences, and to participate in other church events, such as the 1987 Synod of Bishops. The Pope wanted to name Lejeune as the president of a new pontifical academy that was dear to his heart: the Pontifical Academy for Life. Lejeune painstakingly drafted its bylaws and the oath of the Servants of Life that each member of the Academy must take.

Lejeune was diagnosed with lung cancer in November, 1993. He served as President of the Academy for only a few weeks before his death in April 1994. The Pope was grieved: “The words of Christ come to mind as we face the death of Dr. Jérôme Lejeune…. A death like this one bears even stronger witness to the Life that each of us is called to in Jesus Christ. Throughout our brother Jérôme’s life, this calling was a guiding principle. As a highly skilled biologist, he had a passion for life. He was one of the world’s great authorities in his field…. Today we face the death of a great 20th-century Christian, a man for whom defending life had become an apostolate….” (From the Vatican, April 4, 1994)

A few years later, during his visit to Paris for World Youth Day 1997, John Paul II visited Lejeune’s grave in Châlo-Saint-Mars. Lejeune has been named "Servant of God" by the Catholic Church, and his cause for sainthood is being postulated by the Abbey of Saint Wandrille in France.

Honors, awards and credentials

Jérôme Lejeune received many distinctions during his lifetime. He was a member of:

• the French Institute’s Academy of Moral and Political Sciences
• the French Academy of Medicine
• the Pontifical Academy of Sciences
• the Lyncean Academy in Rome
• the American Academy of Arts and Sciences
• the Royal Swedish Academy
• the National Academy of Medicine in Argentina
• the University of Santiago, Chile

Dr. Lejeune held honorary doctorates from:

• University of Düsseldorf, Germany
• University of Pamplona, Spain
• University of Buenos Aires, Argentina
• Pontifical Catholic University of Chile

His international positions included:

• World Health Organization (WHO)

Consulting expert on human genetics (1962)

• International Commission on Radiological Protection

Committee member (1963)

• United Nations

French expert to the Scientific Committee on the Effects of Atomic Radiation

Bibliography

• Life is a Blessing by Clara Lejeune ISBN 978-0-935372-59-5
• The Concentration Can by Jérôme Lejeune ISBN 978-0-89870-394-8
• The Tiniest Humans by Robert L. Sassone, Jerome Lejeune, Albert W. Liley ISBN 1-890712-17-5
• Jérôme Lejeune by Anne Bernet ISBN 978-2-7509-0029-8
• Le Professeur Lejeune - Fondateur de la Génétique Moderne by Jean-Marie Le Méné ISBN 978-2-7289-0859-2

References

1. http://www.larecherche.fr/savoirs/temoignage/decouvreuse-oubliee-trisomie-21-01-10-2009-79706
2. http://sciences.blogs.liberation.fr/home/2014/02/trisomie-21-les-huissiers-de-la-fondation-lejeune.html
3. http://www.la-croix.com/Actualite/France/Trisomie-21-polemique-autour-de-la-decouverte-de-Jerome-Lejeune-2014-02-10-1104303
4. http://news.sciencemag.org/biology/2014/02/after-more-50-years-dispute-over-down-syndrome-discovery
5. ^ Gautier, Marie (2009). "Fiftieth anniversary of trisomy 21: returning to a discovery" (PDF). Human Genetics (126): 317–324. doi:10.1007/s00439-009-0690-1. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
6. ^ Lejeune, Jérôme (1959). "Les chromosomes humains en culture de tissus". CR Hebd Se ́ ances Acad Sci (248): 602–603. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
7. http://www.renewamerica.com/columns/engel/130306
8. ^ http://www.lemonde.fr/sciences/article/2014/02/03/trisomie-une-pionniere-intimidee_4359331_1650684.html
9. "Past ASHG Award recipients". Retrieved 10 February 2014.

External links

• The Jérôme Lejeune Foundation
• International Conference Jerome Lejeune
• Institut Lejeune
• The Lejeune Foundation USA

Template:Persondata

• 1926 births
• 1994 deaths
• People from Montrouge
• French Roman Catholics
• French physicians
• French pro-life activists
• Members of the Pontifical Academy of Sciences
• Members of the Royal Swedish Academy of Sciences
• Necker Hospital
• Cancer deaths in France
• Servants of God