Antonio Carini (1872–1950) was an Italian
physician
A physician, medical practitioner (British English), medical doctor, or simply doctor is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through the Medical education, study, Med ...
,
bacteriologist
A bacteriologist is a microbiologist, or similarly trained professional, in bacteriology— a subdivision of microbiology that studies bacteria, typically Pathogenic bacteria, pathogenic ones. Bacteriologists are interested in studying and learnin ...
and professor. He worked in the public health services of
São Paulo, Brazil
SAO or Sao may refer to:
Places
* Sao civilisation, in Middle Africa from 6th century BC to 16th century AD
* Sao, a town in Boussé Department, Burkina Faso
* Serb Autonomous Regions (''Srpska autonomna oblast'', SAO), during the breakup of Yu ...
for over forty years.
Biography at Università degli Studi di Pavia
Carini showed that rabies
Rabies is a viral disease that causes encephalitis in humans and other mammals. It was historically referred to as hydrophobia ("fear of water") because its victims panic when offered liquids to drink. Early symptoms can include fever and abn ...
of herbivores could be transmitted by bats, and discovered a parasitic fungus (''Pneumocystis carinii
''Pneumocystis jirovecii'' (previously ''P. carinii'') is a yeast-like fungus of the genus ''Pneumocystis''. The causative organism of ''Pneumocystis'' pneumonia, it is an important human pathogen, particularly among immunocompromised hosts. Pr ...
'', now known as ''P. jirovecii''), which causes pneumocystosis
Pneumocystosis is a fungal infection that most often presents as Pneumocystis pneumonia in people with HIV/AIDS or poor immunity. It usually causes cough, difficulty breathing and fever, and can lead to respiratory failure. Involvement outsid ...
.
Early life
Carini was born in Sondrio, Italy
Sondrio (; ; ; archaic or ; ) is an Italian city, ''comune'' and administrative centre for the province of Sondrio, located in the heart of the Valtellina. , Sondrio counted approximately 21,876 inhabitants. In 2007, Sondrio was named the Alpine ...
.
In 1906, aged 34, he was invited to run the Pasteur Institute
The Pasteur Institute (, ) is a French non-profit private foundation dedicated to the study of biology, micro-organisms, diseases, and vaccines. It is named after Louis Pasteur, who invented pasteurization and vaccines for anthrax and rabies. Th ...
of São Paulo, a position he held until 1914.
The discovery of ''Pneumocystis carinii''
In 1909, examining the lungs of guinea pigs experimentally infected with ''Trypanosoma cruzi
''Trypanosoma cruzi'' is a species of parasitic euglenoids. Among the protozoa, the trypanosomes characteristically bore tissue in another organism and feed on blood (primarily) and also lymph. This behaviour causes disease or the likelihood ...
'', Carlos Chagas
Carlos Justiniano Ribeiro Chagas, or Carlos Chagas (; July 9, 1879 – November 8, 1934), was a Brazilian sanitary physician, scientist, and microbiologist who worked as a clinician and researcher. Most well known for the discovery of an eponym ...
described parasitic forms that linked the pulmonary cycle of the trypanosome. But in 1910, Carini and Maciel Jesuino found cyst
A cyst is a closed sac, having a distinct envelope and division compared with the nearby tissue. Hence, it is a cluster of cells that have grouped together to form a sac (like the manner in which water molecules group together to form a bubb ...
formations very similar to these parasitic forms when examining the lungs of rats living in the sewers and naturally infected by ''Trypanosoma lewisi
''Trypanosoma lewisi'' is a globally distributed parasite of ''Rattus'' species and other rodents such as mice, and of kangaroo rats in America. Among these host species were two endemic species of rats: ''Maclear's rat, Rattus macleari'' and ''B ...
''. Carini sent the biological material from São Paulo to French researchers Pierre and Eugénie Delanoë at the Institut Pasteur
The Pasteur Institute (, ) is a French non-profit private foundation dedicated to the study of biology, micro-organisms, diseases, and vaccines. It is named after Louis Pasteur, who invented pasteurization and vaccines for anthrax and rabies. T ...
in Paris. In 1912, after studying the material, they confirmed that the parasite was indeed different from ''T. cruzi'' and called it ''Pneumocystis carinii'', in honour of the researcher. The Delanoës published the first description of the organism as something different from trypanosomes.
In 1942, two Dutch researchers, G. van der Meer and S. L. Brug, were presented three cases in humans (two babies and a 21-year-old adult), affected by a form of pneumonia particularly frequent in Central Europe, especially in frail or dystrophic
Dystrophic lakes, also known as humic lakes, are lakes that contain high amounts of humic substances and organic acids. The presence of these substances causes the water to be brown in colour and have a generally low pH of around 4.0-6.0. The p ...
premature children. In the 1980s, investigations about its molecular biology made clear that the pneumonia was not caused by a parasitic protozoan
Protozoa (: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris. Historically ...
, but by a fungus
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...
. In the same years, ''Pneumocystis carinii'' was often held responsible for severe lung infections in patients affected by AIDS. In 1999, the human variant of ''Pneumocystis carinii'' was renamed ''Pneumocystis jirovecii
''Pneumocystis jirovecii'' (previously ''P. carinii'') is a yeast-like fungus of the genus ''Pneumocystis''. The causative organism of ''Pneumocystis'' pneumonia, it is an important human pathogen, particularly among immunocompromised hosts. P ...
'', but the former name is still commonly used.
Carini was Professor of Microbiology at the Faculty of Medicine, University of Pavia
The University of Pavia (, UNIPV or ''Università di Pavia''; ) is a university located in Pavia, Lombardy, Italy. There was evidence of teaching as early as 1361, making it one of the List of oldest universities in continuous operation, oldest un ...
and a prolific researcher in medical microbiology. He identified or studied over 150 new or little-known micro-organisms, including trypanosomes, Giardia
''Giardia'' ( or ) is a genus of anaerobic flagellated protozoan parasites of the phylum Metamonada that colonise and reproduce in the small intestines of several vertebrates, causing the disease giardiasis. Their life cycle alternates be ...
, pneumocystis
The Pneumocystidomycetes are a class of ascomycete fungi. It includes the single order Pneumocystidales, which contains the single monotypic family Pneumocystidaceae, which in turn contains the genus
Genus (; : genera ) is a taxonomic rank ...
, plasmodia
''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a verteb ...
, toxoplasma
''Toxoplasma gondii'' () is a species of parasitic alveolate that causes toxoplasmosis. Found worldwide, ''T. gondii'' is capable of infecting virtually all warm-blooded animals, but members of the cat family (felidae) are the only known d ...
, and Leptospira
''Leptospira'' () is a genus of spirochaete bacteria, including a small number of pathogenic and saprophytic species. ''Leptospira'' was first observed in 1907 in kidney tissue slices of a leptospirosis victim who was described as having died ...
.
Later life
In 1947 he retired from the leadership of the Paulista Institute of Biology
Paulista is a municipality in Pernambuco, Brazil, with a population of 334,376 as of 2020. It has the highest Human Development Index (HDI) of the Recife metropolitan area. It is the birthplace of footballer Rivaldo and is also famous for its be ...
and returned to Italy. He died in Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
three years later, aged 78.
References
{{DEFAULTSORT:Carini, Antonio
1872 births
1950 deaths
Italian microbiologists
19th-century Italian physicians
People from Sondrio
Academic staff of the University of Pavia