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All Journal Bioscientia Medicina : Journal of Biomedicine and Translational Research
Dinar Kukuh Prasetyo
Department of Surgery, Faculty of Medicine, Universitas Sebelas Maret/Dr. Moewardi Regional General Hospital, Surakarta, Indonesia
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

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Beyond PD-1/PD-L1: A Systematic Review and Meta-Analysis of LAG-3, TIGIT, and TIM-3 as Prognostic Biomarkers and Therapeutic Targets in Breast Cancer Dinar Kukuh Prasetyo; Widyanti Soewoto
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 6 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i6.1600

Abstract

Background: The therapeutic paradigm for breast cancer advanced significantly with programmed cell death-1 (PD-1) and programmed cell death ligand-1 (PD-L1) inhibitors. However, adaptive immune resistance, driven by compensatory upregulation of alternative checkpoints—Lymphocyte-activation gene 3 (LAG-3), T-cell immunoreceptor with Ig and ITIM domains (TIGIT), and T-cell immunoglobulin and mucin-domain containing-3 (TIM-3)—limits durable responses. This study aimed to quantitatively synthesize the prognostic significance, tumor microenvironment interactions, and translational surgical implications of these biomarkers in breast cancer. Methods: A systematic literature search (PubMed, Embase, Cochrane) identified original research evaluating LAG-3, TIGIT, and TIM-3 expression in breast cancer cohorts. Data extraction focused on overall survival (OS) hazard ratios (HR), standardized mean differences (SMD) for tumor-infiltrating lymphocyte (TIL) density, and pathological complete response (pCR) rates. Random-effects meta-analyses generated forest plots, assessed heterogeneity (I-squared), and evaluated publication bias via funnel plots. Results: Eight major cohorts comprising over 7,200 patients were included. High LAG-3 expression on TILs in triple-negative breast cancer (TNBC) was significantly associated with improved OS (Pooled HR 0.88, 95% CI 0.81-0.95, p=0.002) and higher pCR rates following neoadjuvant chemotherapy. Conversely, elevated TIGIT expression in primary tumors correlated with poorer OS (Pooled HR 1.58, 95% CI 1.18-2.11, p=0.004) and increased locoregional recurrence risk. TIM-3 demonstrated dual prognostic value: favorable in basal-like subtypes but detrimental in luminal subtypes. Funnel plots indicated minimal publication bias. Conclusion: LAG-3, TIGIT, and TIM-3 function as distinct, non-redundant biomarkers. LAG-3 signifies a primed, actionable immune response, whereas TIGIT and TIM-3 indicate severe immune exhaustion. Mapping these profiles provides critical translational value for optimizing personalized surgical timing, predicting neoadjuvant downstaging, and selecting adjuvant immunotherapies.
Thresholds of Cytoprotection: Ethanolic Propolis Extract Mitigates Ischemia-Reperfusion Injury via the MDA/IL-6 Axis in a Graded Rat Skin Flap Model Dinar Kukuh Prasetyo; Amru Sungkar; Brian Wasita
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 3 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i3.1546

Abstract

Background: Distal necrosis in reconstructive skin flaps results from ischemia-reperfusion (I/R) injury, driven by reactive oxygen species (ROS) and pro-inflammatory cytokines. While Propolis exhibits antioxidant properties, its efficacy limit relative to the severity of ischemic challenge remains undefined. Methods: A randomized, controlled experimental study was conducted using 36 male Wistar rats. A graded ischemia model was engineered using modified McFarlane flaps with increasing length-to-width ratios: Mild (2:1), moderate (3:1), and severe (4:1). Subjects were stratified into vehicle (Control) and treatment (Propolis 800 mg/kg/day, oral) groups across all dimensions. The primary endpoint was the percentage of viable flap area on Day 7. Secondary endpoints included serum Malondialdehyde (MDA), Interleukin-6 (IL-6), and histological scoring of inflammation. Results: All animals survived the procedure. Propolis significantly increased viable tissue area in the moderate ischemia group (76.4 ± 4.2%) compared to Vehicle (52.1 ± 5.8%; p < 0.001). In Mild ischemia, survival was near-maximal in both groups (>92%). However, in Severe ischemia, Propolis failed to prevent significant necrosis (34.2 ± 6.1% survival vs. 28.5 ± 5.4% in Vehicle; p = 0.092), indicating a therapeutic ceiling. Biochemically, Propolis suppressed MDA (11.92 ± 0.45 nmol/mL) and IL-6 (121.0 ± 4.71 pg/mL) significantly in moderate challenges but was overwhelmed by the oxidative surge in severe ischemia (MDA > 12.0 nmol/mL). Conclusion: Propolis confers significant protection against I/R injury by dampening lipid peroxidation and systemic inflammation, but this effect exhibits a distinct threshold. It is highly effective in moderate ischemic challenges but insufficient for severe vascular compromise.
Beyond PD-1/PD-L1: A Systematic Review and Meta-Analysis of LAG-3, TIGIT, and TIM-3 as Prognostic Biomarkers and Therapeutic Targets in Breast Cancer Dinar Kukuh Prasetyo; Widyanti Soewoto
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 10 No. 6 (2026): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v10i6.1600

Abstract

Background: The therapeutic paradigm for breast cancer advanced significantly with programmed cell death-1 (PD-1) and programmed cell death ligand-1 (PD-L1) inhibitors. However, adaptive immune resistance, driven by compensatory upregulation of alternative checkpoints—Lymphocyte-activation gene 3 (LAG-3), T-cell immunoreceptor with Ig and ITIM domains (TIGIT), and T-cell immunoglobulin and mucin-domain containing-3 (TIM-3)—limits durable responses. This study aimed to quantitatively synthesize the prognostic significance, tumor microenvironment interactions, and translational surgical implications of these biomarkers in breast cancer. Methods: A systematic literature search (PubMed, Embase, Cochrane) identified original research evaluating LAG-3, TIGIT, and TIM-3 expression in breast cancer cohorts. Data extraction focused on overall survival (OS) hazard ratios (HR), standardized mean differences (SMD) for tumor-infiltrating lymphocyte (TIL) density, and pathological complete response (pCR) rates. Random-effects meta-analyses generated forest plots, assessed heterogeneity (I-squared), and evaluated publication bias via funnel plots. Results: Eight major cohorts comprising over 7,200 patients were included. High LAG-3 expression on TILs in triple-negative breast cancer (TNBC) was significantly associated with improved OS (Pooled HR 0.88, 95% CI 0.81-0.95, p=0.002) and higher pCR rates following neoadjuvant chemotherapy. Conversely, elevated TIGIT expression in primary tumors correlated with poorer OS (Pooled HR 1.58, 95% CI 1.18-2.11, p=0.004) and increased locoregional recurrence risk. TIM-3 demonstrated dual prognostic value: favorable in basal-like subtypes but detrimental in luminal subtypes. Funnel plots indicated minimal publication bias. Conclusion: LAG-3, TIGIT, and TIM-3 function as distinct, non-redundant biomarkers. LAG-3 signifies a primed, actionable immune response, whereas TIGIT and TIM-3 indicate severe immune exhaustion. Mapping these profiles provides critical translational value for optimizing personalized surgical timing, predicting neoadjuvant downstaging, and selecting adjuvant immunotherapies.
Co-Authors Brian Wasita Sungkar, Amru Widyanti Soewoto