Tumor-infiltrating lymphocytes as a predictor of axillary and primary tumor pathological response after neoadjuvant chemotherapy in patients with breast cancer: a retrospective cohort study

Chin, KianGothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för kirurgi,Institute of Clinical Sciences, Department of Surgery,Gothenburg Univ, Sweden; Sahlgrens Univ Hosp, Sweden (författare)

Funding Agencies|Stiftelsen Assar Gabrielssons Fond
Purpose Tumor-infiltrating lymphocytes (TILs) can predict complete pathological response (pCR) of tumor in the breast but not so well-defined in the axilla after neoadjuvant chemotherapy. Since axillary surgery is being increasingly de-escalated after NACT, we aimed to investigate the relationship between TILs and pCR in the axilla and breast, as well as survival amongst NACT patients.Methods Clinicopathological data on patients who underwent NACT between 2013 and 2020 were retrospectively examined. Specifically, pre-TILs (before NACT), post-TILs (after NACT) and Delta TIL (changes in TILs) were assessed. Primary endpoint was pCR and secondary endpoints were breast cancer-free interval (BCFI) and overall survival (OS).Results Two hundred and twenty patients with nodal metastases were included. Overall axillary and breast pCR rates were 42.7% (94/220) and 39.1% (86/220), respectively, whereas the combined pCR rate was 32.7% (72/220). High pre-TILs (OR 2.03, 95% CI 1.02-4.05; p = 0.04) predicted axillary pCR whereas, high post-TILs (OR 0.33, 95% CI 0.14-0.76; p = 0.009) and increased Delta TILs (OR 0.25, 95% CI 0.08-0.79; p = 0.02) predicted non-axillary pCR. TILs were not a significant predictor for BCFI and OS.Conclusions This study supports the potential use of pre-TILs to select initially node-positive patients for axillary surgical de-escalation after NACT.

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Cancer och onkologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Cancer and Oncology hsv//eng
Breast cancer; Neoadjuvant chemotherapy; Tumor-infiltrating lymphocytes; Axillary lymph node dissection; Tumor response

Landen, Amalia H.Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology,Univ Gothenburg, Sweden (författare)
Kovács, Anikó,1961Gothenburg University,Göteborgs universitet,Institutionen för biomedicin,Institute of Biomedicine,Sahlgrens Univ Hosp, Sweden(Swepub:gu)xkovan (författare)
Wärnberg, FredrikGothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för kirurgi,Institute of Clinical Sciences, Department of Surgery,Gothenburg Univ, Sweden(Swepub:gu)xwarnf (författare)
Ekholm, MariaLinköpings universitet,Avdelningen för kirurgi, ortopedi och onkologi,Medicinska fakulteten,Ryhov Cty Hosp, Sweden(Swepub:liu)marek03 (författare)
Karlsson, Per,1963Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology,Univ Gothenburg, Sweden(Swepub:gu)xkperd (författare)
Olofsson Bagge, Roger,1978Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för kirurgi,Institute of Clinical Sciences, Department of Surgery,Gothenburg Univ, Sweden(Swepub:gu)xoloro (författare)
Göteborgs universitetInstitutionen för kliniska vetenskaper, Avdelningen för kirurgi (creator_code:org_t)

Av författaren/redakt...: Chin, Kian; Landen, Amalia H ...; Kovács, Anikó, 1 ...; Wärnberg, Fredri ...; Ekholm, Maria; Karlsson, Per, 1 ...; visa fler...; Olofsson Bagge, ...; visa färre...

Om ämnet

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Cancer och onkol ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.