Włodzimierz Ptak

Włodzimierz Ptak a adăugat o fotografie

acum 5 zile

R.I.P
Włodzimierz

Włodzimierz Wojciech Ptak (2 November 1928 – 28 May 2019) was a Polish immunologist and microbiologist, professor of medical sciences, member of the Polish Academy of Sciences and the Polish Academy of Learning, professor and Vice-Rector at the Medical Academy in Kraków, later transformed into the Jagiellonian University Medical College, visiting professor at Yale University. In his scientific work, he studied mainly the regulatory mechanisms of the immune response. Together with Richard K. Gershon, he co-authored the discovery of regulatory T cells. He published more than two hundred research papers, and was one of the most frequently cited Polish scientists in the field of biomedicine after 1965. A graduate of the Medical Academy in Kraków, he was forcibly drafted into the Polish Army between 1952 and 1957. He obtained Ph.D. in 1962 at the Medical Academy in Szczecin. In 1967, he received British Council scholarship to the National Institute for Medical Research in London. From 1974 until 1999, he was a visiting professor at Yale University, meanwhile standing as the Vice-Rector of the Medical Academy in Kraków (1978–1981) and a member of the Presidium of the International Union of Immunological Societies (1983–1986). He was a member of the Presidium (1978–1984)…Citește mai mult

Włodzimierz Ptak a adăugat o fotografie

acum 5 zile

R.I.P
Włodzimierz

1928–1952: Youth He was born in 1928 in Kraków as the son of Wojciech Ptak (1888–1946), an engineer and a graduate of the Lviv Polytechnic, and Maria Ptak (née Krawczyk; 1904–1986), an employee in kasa chorych, a public health insurance corporation. The father, as his son recalled, was a tough, demanding and strict man, fluent in French and German language. His grandparents were Franciszek Ptak (1859–1936), an innkeeper, peasant movement activist and a member of the Diet of Galicia and Lodomeria, and Józef Krawczyk (1865–1942), a foreman in the cigarette factory “Cygar fabryka” at Dolnych Młynów Street in Kraków. Włodzimierz had a younger sister, Wanda Ptak-Kollat (1930–1984), a master engineer in roads and bridges and a graduate of Kraków Polytechnic. In 1936, Wojciech Ptak was offered a work in high office in the French-Polish railway company in Bydgoszcz, hence the Ptak family moved there. In Bydgoszcz Włodzimierz Ptak befriended with Czesław Radzikowski. In 1939, after the outbreak of World War II, the Ptaks returned to Kraków, as Włodzimierz recalled: “We returned from a four-room apartment to a single room with a kitchen. We've lost everything. My father fell ill. He died of a heart attack just after the war, before…Citește mai mult

Włodzimierz Ptak a adăugat o fotografie

acum 5 zile

R.I.P
Włodzimierz

1970–1999: Between Kraków and New Haven He passed his habilitation exam in the field of pathology in 1970. Julian Aleksandrowicz was one of the reviewers of his work. In 1976 Ptak was given the title of full professor. Over the years, he held the position of deputy director of the Institute of Microbiology, Head of the Department of Experimental and Clinical Immunology of the Institute of Microbiology, and Head of the Department of Immunology of the Medical Academy in Kraków. Between 1978 and 1981, Ptak was the Vice-Rector of the Medical Academy in Kraków. From 1974 until 1999, he was a visiting professor at the Department of Immunology, Department of Internal Medicine at Yale University. Altogether, he spent there more than seven years by submitting twenty-six visits. At Yale, his direct superior was Richard K. Gershon, with whom Ptak collaborated extensively and made friends. Ptak believed that his frequent visits to the United States from a country of the Soviet Bloc, which Polish People's Republic then was, were enabled by the-then Rector of the Medical Academy in Kraków, Tadeusz Popiela: “It was not because the regime loved us that we left the country whenever we wanted. It was because Popiela…Citește mai mult

Włodzimierz Ptak a adăugat o fotografie

acum 5 zile

R.I.P
Włodzimierz

1999–2019: Late work He was a member of the editorial board of the European Journal of Immunology (1985–2004), as well as a member of the Scientific Council of the Institute of Pharmacology of the Polish Academy of Sciences (1994–2018). He authored a textbook Podstawy immunologii (Basics of Immunology) in Polish. First published in 1976, it was followed-up by a number of re-editions, co-authored by Maria Ptak and Marian Szczepanik (1987, 1999, 2009, 2017). Ptak was also active as an academic teacher. He was a promoter in ten doctoral dissertations. He died in Kraków on 28 May 2019 at the age of 90, and was buried at the Rakowicki Cemetery on 3 June 2019, in the family grave.

Włodzimierz Ptak a adăugat o fotografie

acum 5 zile

R.I.P
Włodzimierz

Personal life Over the years, he made friends with artists and intellectuals, such as Zbigniew Cybulski, Adam Walaciński, Artur Maria Swinarski (in the 1950s), Franciszek Studnicki, Adam Macedoński (in the 1960s), Krzysztof Penderecki and Alexander Schenker (in the 1970s). He was an atheist and defined his worldview as leftist. Among his hobbies were, among others, history, religion studies and philosophy. He was cast in a small role in a 2016 short film Hens (Kury). He was married three times, and had one daughter in the second marriage.

Włodzimierz Ptak a lăsat un gând

acum 5 zile

Selected papers Ptak W, Festenstein H, Asherson GL, Denman AM (1969). "Improved graft survival after treatment with Bordetella and anti-lymphocyte serum". Nature. 222 (5198): 1083–5. Bibcode:1969Natur.222.1083P. doi:10.1038/2221083a0. PMID 4306798. S2CID 4164741. Ptak W, Porwit-Bóbr Z, Chlap Z (1970). "Transformation of hamster macrophages into giant cells with antimacrophage serum". Nature. 225 (5233): 655–657. Bibcode:1970Natur.225..655P. doi:10.1038/225655a0. PMID 5413378. S2CID 4192876. Ptak W, Gershon RK (1975). "Immunosuppression effected by macrophage surfaces". Journal of Immunology. 115 (5): 1346–50. doi:10.4049/jimmunol.115.5.1346. PMID 809511. S2CID 7144999. Ptak W, Rozycka D, Askenase PW, Gershon RK (1980). "Role of antigen-presenting cells in the development and persistence of contact hypersensitivity". Journal of Experimental Medicine. 151 (2): 362–75. doi:10.1084/jem.151.2.362. PMC 2185775. PMID 7356727. Ptak W, Bereta M, Ptak M, Gershon RK, Green DR (1984). "Antigen-specific T contrassupressor factor in cell-mediated immunity: intereractions leading to eradication of the tolerant state". Journal of Immunology. 133. Ptak W, Szczepanik M, Ramabhadran R, Askenase PW (1996). "Immune or normal gamma-delta T cells that assist alpha beta T cell in elicitation of contact sensitivity preferentially use Vγ5 and Vδ4 variable region gene segments". Journal of Immunology. 156 (3): 976–86. doi:10.4049/jimmunol.156.3.976. PMID 8558025. S2CID 20851348. Ptak W, Majewska M, Bryniarski K, Ptak M, Lobo FM, Zajac K,…Citește mai mult

Włodzimierz Ptak a lăsat un gând

acum 5 zile

Awards and honors Minister of Health of Poland Award, first degree (seven times, 1973–2009) Scientific Secretary of the Polish Academy of Sciences Award (1973, 1984)

Włodzimierz Ptak a lăsat un gând

acum 5 zile

Alfred Jurzykowski Foundation Award (1981) Award of the Faculty of Medical Sciences of the Polish Academy of Sciences, first degree (1982) State Prize of the Polish People's Republic (1984) Meritorious Teacher of the Polish People's Republic Award (1984) “Gloria Medicinae” Medal awarded by the Polish Medical Association (1992)

Włodzimierz Ptak a lăsat un gând

acum 5 zile

Commander's Cross of Polonia Restituta (1998) Minister of National Education of Poland Award (1999) Jagiellonian Laurel awarded by the Jagiellonian University (1999) Honoris Gratia Medal awarded by the President of Kraków (2016)

Włodzimierz Ptak a lăsat un gând

acum 5 zile

Bibliography Wielka Encyklopedia PWN. Vol. 22. Warszawa: Polish Scientific Publishers PWN. 2004. p. 519. ISBN 83-01-14116-6. "Ptak Włodzimierz Wojciech". Encyklopedia Krakowa. Vol. 2. Kraków: Biblioteka Kraków, Muzeum Krakowa. 2023. p. 312.