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Nowe badanie nad niechirurgicznymi terapiami nowotworów - Vetkompleksowo – serwis dla lekarzy weterynarii
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Wyszukaj w serwisie


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Nowe badanie nad niechirurgicznymi terapiami nowotworów


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badanie
fot. istock
Jak informuje informuje University of Guelph, alternatywna opcja terapii nazywana „szukaj i niszcz”, łączy leczenie aktywowanym światłem nanocząstki zwanej porfysomami z terapią fotodynamiczną (PDT). Chociaż PDT (tj. wykorzystanie światła laserowego do niszczenia guzów) nie jest nową terapią, to badanie oznacza pierwsze połączenie jej z nową technologią nanocząsteczek, która została opracowana przez dr Gang Zheng, badacza z University Health Network (UHN) w Toronto.

Technika ta może ostatecznie zaoferować ukierunkowany, niechirurgiczny sposób diagnozowania i leczenia nowotworów u zwierząt domowych i ludzi, co może zapobiegać nadmiernemu leczeniu i zmniejszać częste skutki uboczne ‒ mówi Michelle Oblak, DVM, DVSc, DACVS, onkolog weterynarii i profesor w dziale badań klinicznych OVC. ‒ To ekscytująca okazja, aby mieć wpływ na sposób leczenia raka zarówno u ludzi, jak i zwierząt domowych, a także wziąć udział w tak niesamowicie innowacyjnym pomyśle i wynalazku. To motywuje nas do kontynuowania pracy, którą wykonujemy. Może to zmienić sposób, w jaki będziemy leczyć i diagnozować raka w przyszłości.

Badanie kliniczne rozpoczęło się w lutym na 10-letnim beaglu o imieniu Shiloh. W badaniu, którego celem jest rekrutacja łącznie 10 psich pacjentów, porfisomy są wstrzykiwane do krwioobiegu. Nanocząsteczki gromadzą się następnie w guzie lub w dowolnym miejscu, w którym rak mógł się rozprzestrzenić.

Fluorescencyjny blask molekuły aktywowanej światłem pozwala naukowcom śledzić jej lokalizację za pomocą specjalnego źródła światła, informuje U of G. Dodatkowo porfisomy sprawiają, że tkanka jest bardziej podatna na uszkodzenia spowodowane światłem laserowym. Wiązka laserowego światła bliskiej podczerwieni skierowana przez nanowłókno aktywuje porfisom, który następnie niszczy tkankę nowotworową.

Na potrzeby badania klinicznego zespół badawczy niszczy tylko część guza, a następnie pobiera z niego wycinki oraz węzły chłonne, aby ocenić wyniki terapii. (Pacjenci biorący udział w badaniu zostaną poddani standardowej operacji chirurgicznej w celu usunięcia całego guza, informuje U of G).

Dzięki badaniu naukowcy mają nadzieję udoskonalić leczenie do stosowania u zwierząt i ostatecznie określić jego zastosowanie w leczeniu różnych rodzajów raka u ludzi jako uzupełnienie lub alternatywę dla operacji.

Źródło: ‘Seek and destroy’ cancer trial explores nonsurgical therapies

Czytaj także: Wykorzystanie DNA do lepszego obliczenia wieku psa


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Mogą zainteresować Cię również


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Wizytówka firmy


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Sklep


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