Peritumorska infiltracija CD3 limfocita pravi razliku kod karcinoma prostate

  • Milka Vještica University Clinical Center of the Republic of Srpska, Clinic for Oncology, Banja Luka, Republic of Srpska, Bosnia and Herzegovina; †University of Banja Luka, Faculty of Medicine, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
  • Sandra Trivunić-Dajko University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia
  • Božana Babić University Clinical Center of the Republic of Srpska, Department of Pathology, Banja Luka, Republic of Srpska, Bosnia and Herzegovina; University of Banja Luka, Faculty of Medicine, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
  • Saša Jungić University Clinical Center of the Republic of Srpska, Clinic for Oncology, Banja Luka, Republic of Srpska, Bosnia and Herzegovina University of Banja Luka, Faculty of Medicine, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
  • Jelena Berendika University Clinical Center of the Republic of Srpska, Clinic for Oncology, Banja Luka, Republic of Srpska, Bosnia and Herzegovina University of Banja Luka, Faculty of Medicine, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
Ključne reči: biomarkeri;, preživljavanje, bez progresije;, prostata, neoplazme;, preživljavanje;, limfociti t

Sažetak


Karcinom prostate (KP) je drugi najčešći karcinom kod muškaraca i peti najčešći uzročnik smrti od karcinoma. Pacijenti sa karcinomom prostate mogu imati različite forme bolesti, od lokalizovanog hormone-senzitivnog do metastatskog kastracijski rezistentnog. Najvažniji prognostički parametri su TMN status, inicijalni prostata-specifični antigen (PSA), Gleason skor i gradus group; međutim, ovi parametri nisu dovoljni da bi se predvidio tok bolesti. Neophodni su novi biomarkeri koji bi poboljšali procenu rizika i omogućili preciznije, personalizovano lečenje. O ulozi lokalnog imunog odgovora uveliko se raspravlja.

Da bismo razjasnili značaj lokalne limfocitne infiltracije, sproveli smo prospektivnu kohortnu studiju kod 96 novodijagnostifikovanih pacijenata sa karcinomom prostate (32 sa srednje/visokorizičnim lokalizovanim, 32 sa lokalno uznapredovalim i 32 sa metastatskom bolešću). Pacijenti su praćeni 96 meseci (8 godina). Analizirali smo razliku u gustini CD3 i CD8 T limfocita unutar tumorskog tkiva (T) i na invazivnoj membrani (M – granica između tumorskog tkiva i zdravog tkiva – peritumorska stroma).

Naša studija je procenjivala kako limfocitna infiltracija utiče na period bez progresije bolesti (PFS) i ukupno preživljavanje (OS). Limfocitna infiltracija je brojana u polju najveće gustine, sa Leica mikroskopom uvećanjem 10x20 i fotografisana sa Leica kamerom, vidno polje 0,1452 mm². Potom su limfociti brojani manuelno uz pomoć komercijalno dostupnog programa Aperio 12.0.

Rezultati korelacije među posmatranim parametrima pokazali su statistički značajnu korelaciju između CD3 M i PFS (P=0.04, CI 95%), kao i CD3 M i OS (P=0.03, CI 95%), u smislu da veća gustina CD3 M prati kraći PFS i OS. Za CD3 T, CD8 T i CD8 M nije pronađena statistički značajna korelacija sa PFS-om i OS-om. Druga istraživanja su pokazala da je limfocitna infiltracija loš prognostički parametar za karcinom prostate, a naši rezultati su saglasni sa tim. Mi smo pronašli da je peritumorska infiltracija CD3 limfocita nezavisan prediktor kraćeg PFS-a i OS-a.

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2025/11/27
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