Prognostic Impact and Utility of Immunoprofiling in the Selection of Patients with Colorectal Peritoneal Carcinomatosis for Cytoreductive Surgery (CRS) and Heated Intraperitoneal Chemotherapy (HIPEC)
Background Recent studies have shown an association in non-metastatic colorectal cancer between patient survival and immunoprofiling (expression of CD3, CD4, CD8, CD45, and FOXP3 T cells at the invasive margin (IM) and the tumor center (TC)) regardless of stage. Patients with peritoneal carcinomatos...
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Published in | Journal of gastrointestinal surgery Vol. 25; no. 1; pp. 233 - 240 |
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Main Authors | , , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.01.2021
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Background
Recent studies have shown an association in non-metastatic colorectal cancer between patient survival and immunoprofiling (expression of CD3, CD4, CD8, CD45, and FOXP3 T cells at the invasive margin (IM) and the tumor center (TC)) regardless of stage. Patients with peritoneal carcinomatosis have a dismal prognosis, but survival can be significantly improved in selected patients who undergo cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC). However, current patient selection for CRS/HIPEC is suboptimal. The purpose of this study is to evaluate immune profiles of patients with peritoneal carcinomatosis and their correlation with overall survival (OS).
Methods
The study cohort included patients from a prospectively maintained database of adults with colorectal peritoneal carcinomatosis who underwent CRS/HIPEC. Immunohistochemistry (IHC) using antibodies to CD3, CD4, CD8, CD45RO, and FOXP3 T cells was performed. IHC image density was calculated using ImageJ software, and an immunoscore was determined.
Results
Eighty tumors were evaluated from 66 patients. These included 14 primary sites and 66 metastatic sites. R0/R1 resection was achieved in 44 (66.7%) patients. Known prognostic factors including resection status (HR 1.99,
p
= 0.004) and lymph node status (HR 3.49,
p
= 0.002) were associated with overall survival. On multivariate analysis, increased CD3/CD4 IM (HR 0.54,
p
= 0.03) ratio positively was associated with improved OS.
Discussion
This is the first study to assess the utility of subtypes of T cells as prognostic markers in patients with colorectal peritoneal carcinomatosis, which may play a role in patients with low-volume disease. Further studies into immune mechanisms may improve patient selection for cytoreductive surgery and HIPEC as well as provide novel pathways for effective immunotherapy. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Garland-Kledzik: project development, data analysis, data collection, manuscript writing/editing; Uppal: project development, manuscript writing/editing; Naeini: data analysis; Stern: data analysis; Erali: project development; Yi: data collection; Cummins-Perry: data collection; Scholer: data analysis; Khader: data analysis; Santamaria-Barria: data analysis; Votanopoulos: data collection; Shen: data collection; Levine: project design, data collection; Bilchik: project development, manuscript writing/editing. Author Contributions |
ISSN: | 1091-255X 1873-4626 |
DOI: | 10.1007/s11605-020-04886-y |