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Combined ctDNA and CTC profiling correlates with PET-CT in cancer progression monitoring. Publications November 25, 2024 ISLB 2024: Comprehensive Analysis of ctDNA and CTCs Reveals Resistance signatures and Correlations with PET Scan Outcomes in Cancer Patients Integrated ctDNA and CTC analysis correlates with PET-CT outcomes to reveal treatment resistance and aggressive cancer progression. Introduction Liquid biopsy offers real-time insights into tumor dynamics. Circulating tumor DNA (ctDNA) and circulating tumor cells (CTCs) stand out as promising biomarkers due to their potential to provide comprehensive information about tumor evolution, treatment response, and the emergence of resistance. Concordance between ctDNA, CTCs, and PET-CT scans holds immense promise in cancer management, including identifying treatment resistance and correlating with PET scan outcomes. Methods Retrospectively, 18 patients with progressive and/or metastatic disease undergoing treatment were monitored. Paired samples for ctDNA and CTCs were evaluated. NGS libraries were prepared using a hybridization-capture method based on the custom-designed OncoIndx 1080 CGP panel and deep sequenced on the Illumina NextSeq 2000 in paired-end mode (150 × 2). Variant calling was performed using the proprietary bioinformatics pipeline iCare. CTCs were isolated using the OncoDiscover platform possessing an anti-EpCAM antibody-based immunomagnetic system from 1.5 ml of blood. CTCs were confirmed with CK18+, PD-L1+, DAPI+, and CD45– markers. Results ctDNA analysis showed that every patient (100%, n = 18) had at least one actionable genomic finding. Among them, 44.44% (n = 8) had concurrent mutations in the BRCA1/2 and TP53 genes, and 87.5% (n = 7) of these patients also possessed detectable CTCs. A smaller subset, 11.11% (n = 2), showed driver mutations in the EGFR gene. The remaining patients exhibited mutations in genes including KRAS, PTEN, STK11, RB1, AR, KIT, MET, and CDKN2A. These molecular profiles correlated with treatment resistance and were consistent with PET scan results showing disease progression in 88.88% (n = 16) of patients. Only 11.11% (n = 2) of the cohort demonstrated therapeutic response in recent PET scans. Notably, the combination of BRCA1/2 and TP53 mutations, along with the presence of CTCs, was primarily observed in patients with advanced or metastatic aggressive disease. These co-occurring mutations were identified in ovarian, biliary duct, and breast cancers. Conclusions The concurrent presence of BRCA1/2 and TP53 mutations alongside CTCs suggests aggressive disease progression and metastasis across the patient group. Moreover, the molecular interplay between BRCA1/2 and TP53 mutations has been associated with resistance to PARP inhibitors. These findings emphasize the urgent need for longitudinal monitoring in patients with both BRCA1/2 and TP53 mutations coupled with CTC detection. View Publication Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

Bioinspired Materials for Wearable Devices and Point-of-Care Testing of Cancer Publications April 27, 2022 Manuscript: Bioinspired Materials for Wearable Devices and Point-of-Care Testing of Cancer Raj Shankar Hazra, Md Rakib Hasan Khan, Narendra Kale, Tabassum Tanha, Jayant Khandare, Sabha Ganai, and Mohiuddin Quadir* Wearable, point-of-care diagnostics, and biosensors are on the verge of bringing transformative changes in detection, management, and treatment of cancer. Bioinspired materials with new forms and functions have frequently been used, in both translational and commercial spaces, to fabricate such diagnostic platforms. Engineered from organic or inorganic molecules, bioinspired systems are naturally equipped with biorecognition and stimuli-sensitive properties. Mechanisms of action of bioinspired materials are deeply connected with thermodynamically or kinetically controlled self-assembly at the molecular and supramolecular levels. Thus, integration ofbioinspired materials into wearable devices, either as triggers or sensors, brings about unique device properties usable for detection, capture, or rapid readout for an analyte of interest. In this review, we present the basic principles and mechanisms of action of diagnostic devices engineered from bioinspired materials, describe current advances, and discuss future trends of the field, particularly in the context of cancer. View Manuscript Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

CTC and PD-L1 analysis helps detect MRD and guide therapy in colorectal cancer. Publications June 3, 2024 ASCO 2024: Measure of minimal residual burden on CTCs with over-expression of PD-L1 as a dynamic biomarker in patients with colorectal cancer. CTC detection with PD-L1 expression in colorectal cancer reveals minimal residual disease and supports personalized treatment strategies. Background In stage III colorectal cancer (CRC) patients, the extent of oxaliplatin-based adjuvant therapy remains uncertain. Approximately 25–50% of stage II–III CRC patients develop recurrence and metastasis even after comprehensive treatment, largely attributed to occult disease and minimal residual disease (MRD). Circulating tumor cells (CTCs) represent a bio-mechanistic source of extravasation leading to micro-metastatic disease. CRC patients receiving reduced adjuvant therapy (3–6 months) are known to exhibit increased CTC counts and positivity rates due to the emergence of resistant clones. Assays that detect CTCs and the expression of programmed death-ligand 1 (PD-L1) as a dynamic biomarker simultaneously have significant clinical implications, particularly when tissue biopsy samples are inadequate to identify molecular targets for immune checkpoint inhibitor (ICI) therapy. Methods In a retrospective study, 182 CRC patients were analyzed for the presence and distribution of CTCs at baseline and across follow-ups (0–4 follow-ups). Peripheral blood (1.5 ml) samples were analyzed using the CDSCO-approved OncoDiscover platform, which consists of a multifunctional magneto-nanosystem mediated by anti-epithelial cellular adhesion molecule (EpCAM) antibodies. CTCs were evaluated in patients with early-stage disease (pre- and post-treatment), progressive disease, disease-free status (DFS), and metastasis. Isolated cells were immunostained to detect CK18+, CD45-, DAPI+, and PD-L1+ expression. PD-L1 expression on CTCs was validated by analyzing the linear intensity gradients of fluorescence signals. CTCs were classified as PD-L1 negative when weak or no fluorescence signal was detected and PD-L1 positive when strong fluorescence signals were observed using automated image acquisition on a Zeiss fluorescence microscope. Results Among the cohort of 182 CRC patient samples, 128 (70.3%) showed the presence of CTCs. A fluorescence intensity-based assay was developed to evaluate PD-L1 expression as a robust functional biomarker for molecular characterization of CTCs. The distribution of CTCs ranged from 1 to 9 cells. The mean fluorescence intensity value and cut-off for PD-L1 expression in CTCs was approximately 1.02. Notably, 54 patients (42.2%) with CTCs showed positive PD-L1 expression. CTC-positive patients with PD-L1 expression were observed across all stages, including early-stage disease, progressive disease, and metastasis. Patients without detectable CTCs (n = 54, 29.7%) either had clinically stable disease or were in DFS with no radiographic evidence of disease. Conclusions PD-L1 overexpression on CTCs represents a dynamic blood-based biomarker indicating disease progression even in patients with DFS status. Enumeration of CTCs along with assessment of PD-L1 expression may enable more individualized treatment strategies for CRC patients and support better monitoring of disease progression and therapeutic response. Know more Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

Magnetic nanogels enable optimized capture of circulating tumor cells from blood. Publications February 11, 2018 Manuscript: Optimizing Circulating Tumor Cells’ Capture Efficiency of Magnetic Nanogels by Transferrin Decoration Magnetic nanogels with optimized PEG–transferrin linkers achieve over 80% efficiency in selectively capturing circulating tumor cells from blood. Magnetic nanogels (MNGs) are designed with the necessary features to function as highly efficient trapping materials for the challenging task of selectively capturing circulating tumor cells (CTCs) from the bloodstream. A key factor in this process is the ability to discriminate CTCs from hematological cells, which can be optimized by finely tuning the polymers used to link the targeting moiety to the MNGs. Here, we describe the relationship between the capturing efficiency of CTCs with overexpressed transferrin receptors and the different strategies used in polymer linkers to decorate these MNGs with transferrin (Tf). Heterobifunctional polyethylene glycol (PEG) linkers with varying molecular weights were coupled to transferrin in different ratios. Optimal results, with over 80% CTC capture efficiency, were obtained when three PEG linkers with a length of eight ethylene glycol (EG) units were used. These findings highlight the crucial role of linker design in developing efficient CTC-sorting systems. View Manuscript Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

Actorius Meeting with Oncology KOLs in US and Europe Events February 20, 2026 Meeting with our KOLs Our team meeting with oncology KOLs from the US and Europe. Meeting with Oncology KOLs in USA and Europe We had the opportunity to engage with leading oncology KOLs across the USA and Europe, including Dr. Klaus Pantel , Dr. Catherine Alix-Panabières , Dr. Umberto Malapelle , and Dr. Ravindra Kolhe . The discussions centered around our latest innovation, OncoMetastat® , and explored emerging advancements in oncology—particularly in circulating tumor cell (CTC) research and the biology of metastasis. OncoMetastat® is our patented investigational extracorporeal blood-processing platform, inspired by blood-dialysis principles. It is designed to selectively capture circulating tumor cells directly from a patient’s bloodstream while preserving overall blood integrity. By enabling real-time interaction with CTCs, the platform aims to go beyond detection—offering the potential to study tumor behavior dynamically and generate deeper biological insights into disease progression. Importantly, OncoMetastat® is also being evaluated for its potential to reduce circulating tumor burden through selective capture, opening new possibilities in adjunct therapeutic strategies and early intervention in the metastatic cascade. Built with a strong emphasis on precision, safety, and scalability, the technology represents a step toward integrating diagnostics and intervention within a single platform. These insightful exchanges with global experts reinforce our commitment to advancing precision-driven cancer care through collaboration, innovation, and a deeper understanding of cancer biology. Know more Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

Preoperative CTC levels predict prognosis and survival in oral squamous cell carcinoma. Publications July 1, 2022 Manuscript: Circulating tumor cells as a predictor for poor prognostic factors and overall survival in treatment nay¨ve oral squamous cell carcinoma patients Preoperative circulating tumor cell levels strongly correlate with metastasis, disease severity, and reduced survival in oral squamous cell carcinoma patients. Objective: The aim of this study was to investigate the presence of circulating tumor cells (CTCs) and their correlation with prognostic factors and clinical outcomes in treatment-naive patients with oral squamous cell carcinoma. Study design: CTCs were isolated using the OncoDiscover technique from presurgically obtained peripheral blood of 152 patients with treatment-naive oral squamous cell carcinoma. Sensitivity analysis was performed by including 40 healthy controls. CTC cutoff values for clinicopathologic factors were obtained from receiver operating characteristic curves. Multivariate models determined the significance of CTCs as independent variables. Kaplan–Meier analysis differentiated overall survival based on CTC values corresponding to disease stage. Results: Sensitivity, specificity, and accuracy of CTC detection were 94.32%, 98%, and 95.17%, respectively. The platform differentiated true positives at >3.5 CTCs (P < .00001). CTC counts above 20.5 were suggestive of nodal metastasis (P < .0001), with a linear trend for detecting occult metastasis (P = .061). Early and advanced stages could be differentiated by >13.5 CTCs (P < .0001). Elevated CTC levels were significantly associated with extranodal extension (>21.45 CTCs, P = .025), perineural invasion (>19.35 CTCs, P = .049), and depth of invasion (>12.5 CTCs, P = .0038). Median survival was reduced by 19 months when CTC levels were >13. Conclusions: Preoperative CTC levels demonstrated a strong correlation with adverse clinicopathologic factors and suggested their role as a sensitive prognostic marker for predicting survival outcomes and disease progression. (Oral Surg Oral Med Oral Pathol Oral Radiol 2022;134:73–83) View Manuscript Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

Real-Time Therapy Response Monitoring Using Surface Biomarkers on Circulating Tumor Cells Publications January 27, 2026 Manuscript: Real-Time Therapy Response Monitoring Using Surface Biomarkers on Circulating Tumor Cells Circulating tumor cells (CTCs), cancer cells shed from primary tumors into the bloodstream, are emerging as dynamic, non-invasive biomarkers for real-time cancer monitoring, especially when tissue biopsies are inaccessible or inadequate... Simple summary Circulating tumor cells (CTCs), which are cancer cells shed from primary tumors into the bloodstream, are emerging as dynamic, non-invasive biomarkers for real-time cancer monitoring, especially when tissue biopsies are inaccessible or inadequate. Unlike static tissue samples, CTCs allow repeated assessments that track tumor evolution, therapeutic response, and minimal residual disease. Hence, CTCs offer a minimally invasive, real-time alternative to tissue biopsies for cancer monitoring, particularly through surface protein biomarkers like PD-L1, HER2, and EGFR. As detection technologies improve and the clinical relevance of CTCs continues to be established, CTC profiling is poised to significantly influence the future of precision oncology. Abstract Circulating tumor cells (CTCs) are shed from the primary tumor into the bloodstream and represent dynamic molecular biomarkers for monitoring the progression of cancer. While profiling tumor tissues with overexpression of cell surface markers, such as PD-L1 or HER2, is standard in guiding therapy, tissue samples are often inaccessible and inadequate, especially post-surgery or in cases of recurrence. Emerging clinical evidence indicates that CTC counts and biomarker surface expression can predict prognosis and therapeutic resistance more accurately than imaging or tissue-based approaches. Recent advancements in CTC detection methods, based on physical properties or surface markers (e.g., EpCAM), coupled with next-generation sequencing (NGS), have enabled the isolation of these rare cells and their molecular characterization. Consequently, CTCs provide a real-time alternative, enabling repeated, longitudinal assessment of tumor phenotype and therapeutic response. This review emphasizes the translational potential of surface protein biomarkers on CTCs for profiling, namely PD-L1, HER2, and EGFR, as a clinically actionable approach to stratify patients, guide immunotherapy decisions, and monitor minimal residual disease (MRD), especially when longitudinal tissue biopsies are not feasible. View Manuscript Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

TSG mutations predict early relapse in mEGFR lung adenocarcinoma. Publications March 14, 2025 Manuscript: The impact of co-occurring tumor suppressor mutations with mEGFR as early indicators of relapse in lung cancer A set of 17 co-occurring TSG mutations has been identified as key biomarkers for early relapse in mEGFR lung adenocarcinoma. Longitudinal genomic monitoring, with a focus on clonal evolution, offers valuable insights that can inform personalized treatment strategies and potentially improve patient outcomes. Background: Lung adenocarcinoma frequently presents with EGFR mutations, often progressing on EGFR tyrosine kinase inhibitors (TKls) despite an initial response. Progression is frequently driven by additional genetic changes, including mutations in tumor suppressor genes (TSGs). Understanding the role of these concurrent TSG mutations can help elucidate resistance mechanisms and guide the development of more effective treatment approaches. Materials and methods: We examined survival outcomes in 483 EGFR-mutant (mEGFR) patients from the GENIE BPC non-small-cell lung cancer (SCLC) dataset. To understand the mutational landscape and clonal dynamics, whole exome sequencing (WES) was carried out on 48 tumor samples from 16 mEGFR patients at both baseline and post-relapse. A comprehensive gene panel was applied to 200 liquid biopsy samples obtained longitudinally from 25 patients to track clonal evolution. Results: mEGFR patients with co-occurring TSG mutations exhibited significantly worse outcomes. In the GENIE dataset, overall survival (OS) was shorter [51.11 versus 99.3 months; hazard ratio (HR) 1.8, confidence interval (CI) 1.22-2.75, P = 0.003] and progression-free survival (PFS) was reduced (9.83 versus 11.48 months; HR 1.4, CI 1.03-1.91, P=0.026). WES analysis revealed 17 TSG mutations that were retained and showed clonal enrichment, particularly in early relapse (progression within 10 months of TKI initiation) or intermediate-stage relapse (relapse occurred between 10 and 20 months), indicated by increased variant allele frequency and their presence was strongly linked to early relapse. Longitudinal clonal studies further confirmed that TSG mutations co-occurring with mEGFR were often truncal, predominantly in early relapsers. Survival analysis using this subset of 17 TSGs showed significantly shorter OS (55.26 versus 99.3 months; HR 1.7, CI 1.12-2.65, P = 0.011) and PFS (9.67 versus 13.12 months; HR 1.5, CI 1.08-2.10, P = 0.013). Conclusions: A set of 17 co-occurring TSG mutations has been identified as key biomarkers for early relapse in mEGFR lung adenocarcinoma. Longitudinal genomic monitoring, with a focus on clonal evolution, offers valuable insights that can inform personalized treatment strategies and potentially improve patient outcomes. Key words: lung adenocarcinoma, tyrosine kinase inhibitor, whole exome sequencing, comprehensive gene panel, tumor suppressor genes View Manuscript Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

3D-printed G-EpCAM device effectively captures CTCs to stem metastatic progression. Publications June 7, 2022 ASCO 2022: Extracorporeal microchannel device to capture and eliminate circulating tumor cells from cancer patient’s blood. A 3D-printed G-EpCAM device successfully captured over 85% of CTCs with minimal hemolysis, offering a new way to stem metastatic progression. Background Metastatic progression accounts for nearly 90% of cancer-related deaths and has been directly correlated with the presence of circulating tumor cells (CTCs) in numerous carcinomas, including breast, lung, ovarian, colorectal, and head and neck cancers. The removal of CTCs from cancer patients' blood is directly implicated in the reduction of extravasation and disease invasiveness to secondary organs. Methods We designed and printed 3-dimensional (3D) microchannel devices using a biocompatible polymer and packed them with anti-EpCAM (EpCAM) mediated glass-based (G) compositions (G-EpCAM). Computational fluid dynamic (CFD) analysis simulation was explored to optimize the hemodynamic effect of the G-EpCAM device for measuring the pressure and velocity difference for blood along the spiral flow microchannels. Red blood cell (RBC) hemolysis was estimated using G-EpCAM compositions packed in a device to determine optimal biocompatibility. We assessed cancer cell lines' (breast cancer MCF7, lung cancer A549) interactions and capture with varying incubation time points, the effect of anti-EpCAM concentrations, the number of G-EpCAMs, and series of devices. We evaluated the G-EpCAM-on-device's CTC capture capability and biocompatibility using head and neck, colorectal, lung, and ductal breast cancer patients' blood samples. All G-EpCAM captured CTCs were immunostained for cytokeratin 18 (CK18) expression, and the optimal fluorescence acquisition intensity was quantified. Results The extracorporeal G-EpCAM microchannel device was 3D printed and consisted of an interlocking top lid and bottom base with inlet and outlet channels. The path length of the spiral device consisted of 20 microchannels with a 6.0-foot length. The device accommodated 28 gm of non-hemolytic G-EpCAM compositions. CFD analysis showed 3.8 mm as the ideal channel diameter and 2 mm as the superlative G-EpCAM diameter for maximal cell and CTC capture with minimal blood hemolysis (less than 1%) as compared to the control. Series 1 and 2 devices indicated 90% and 85% cell capture efficiency, respectively, using G-EpCAM devices, indicating the highest interactions and efficiency with cells. Conversely, the first device in the series captured the highest number of cells. In addition, the efficiency improved as the number of G-EpCAM compositions was increased. We accounted for the device to capture CTCs with specificity using the G-EpCAM composition and observed no hemolysis or non-specific interactions with other blood cells like RBCs or leukocytes. Conclusions Continuous CTC removal from cancer patients' blood circulation using such a device offers promising therapeutic utility in stemming aggressive metastatic invasion and progression for improving the overall survival of epithelial origin cancer patients. Clinical Trial Information CTRI U1111/1192-3951. Know more Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

Antibody-coated cotton substrate for CTC enumeration and chemotherapy response. Publications February 18, 2022 Manuscript: Antibody mediated cotton-archetypal substrate for enumeration of circulating tumor cells and chemotherapy outcome in 3D tumors Cotton microfluidic substrate enables efficient CTC isolation, 3D tumor growth, and drug response testing for improved cancer diagnostics and therapy research. Circulating tumor cells (CTCs) are distinct cancer biomarkers established in clinical settings for early cancer detection, metastasis progression, and minimal residual disease (MRD) monitoring. Despite numerous advances, comprehensive molecular characterization of CTCs remains extremely challenging due to their rarity and heterogeneity. Here, we present a novel cotton microfluidic substrate (CMS) as an innovative biomedical matrix that efficiently isolates CTCs while facilitating in vitro CTC expansion, enabling further downstream analysis of these rare cells. CMS enabled both static and dynamic isolation of cells from the MCF-7 cancer cell line, as well as from the blood of head and neck squamous cell carcinoma (HNSCC) patients. The cell capture efficiencies were further compared with the clinically regulated OncoDiscover® Liquid Biopsy Test. Furthermore, CMS served as a matrix on which the captured cancer cells were grown into 3D tumor models to study anti-cancer drug efficacy and multi-drug resistance (MDR) mechanisms. The design of the CMS employed two different surface chemistries—flattened and nanostructured surfaces—each conjugated with anti-EpCAM antibodies to evaluate CTC capture efficiency and 3D tumor growth dynamics. The nanostructured surface was highly efficient in capturing CTCs and promoted 3D tumor spheroid formation, showing a five-fold increase in size from day 3 to day 10 of culture. Moreover, when treated with the anti-cancer drug cisplatin, an almost half reduction in tumor size was achieved within 24 hours, followed by a cytostatic threshold and the eventual acquisition of drug resistance within three days. Conclusively, the CMS matrix exhibits potential for the further development of “tissue-on-chip” and “point-of-care” medical devices in cancer diagnostics, as well as for evaluating chemotherapeutic efficacy in drug discovery and development. View Manuscript Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

OncoDiscover Blood Test Detects Cancer Relapse Early | Dr. Jayant Khandare Expert Insights August 28, 2022 Revolutionary Blood Test Detects Cancer Relapse Early | Dr. Jayant Khandare Discover India's first approved, highly affordable blood test that detects cancer relapse and metastasis earlier than traditional CT or MRI scans. Developed by Dr. Jayant Khandare and clinically validated with Tata Memorial Hospital, this painless test catches circulating tumor cells before it's too late. Cancer relapse and metastasis are responsible for the vast majority of cancer-related fatalities, often because traditional imaging tools like CT and MRI scans fail to catch the disease's return in time. This video highlights a groundbreaking and highly affordable blood test—India's first-in-class medical device approved by the Drug Controller General of India. Developed by Dr. Jayant Khandare, the OncoDiscover test requires only a small volume of blood to identify circulating tumor cells (CTCs) and detect minimal residual disease before it becomes uncontrollable. Clinically validated in partnership with Tata Memorial Hospital in Mumbai, this painless innovation provides oncologists with a powerful tool to monitor patients, optimize treatment, and ensure families never have to hear the dreaded words, "It's too late." Know more Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe

Biofunctionalized capillary platform with 3D matrix for efficient CTC capture. Publications January 17, 2017 Manuscript: Biofunctionalized Capillary Flow Channel Platform Integrated with 3D Nanostructured Matrix to Capture Circulating Tumor Cells Continuous-flow 3D microchannel platform captures circulating tumor cells with ~90% efficiency, enabling liquid biopsy and real-time cancer monitoring. Circulating tumor cells (CTCs) in peripheral blood provide valuable genetic information for cancer diagnosis and overall disease monitoring. The analysis of “liquid biopsy” holds immense promise, as it may lead to new approaches for cancer treatment. This study reports an effective continuous-flow microchannel system for isolating CTCs using a transferrin-conjugated 3D matrix synthesized by crosslinking polyethylene glycol–Fe₃O₄ nanostructures. This design enables rapid and efficient capture of CTCs. The platform also allows the use of multiple microchannel units in series, which can enhance cell capture efficiency by increasing the frequency of cell–substrate contact. CTCs were captured with high efficiency even at low target cell concentrations, achieving approximately 90% capture efficiency at 25 cells per mL of blood. Furthermore, the study demonstrates that cell capture performance is influenced by topographic interactions between the nanostructure-based matrix and the cancer cells of interest. In addition, this work presents a proof of concept using a 3D microchannel system capable of simultaneously capturing and permanently eliminating CTCs from peripheral blood samples. The study also evaluates clinical samples from colon and breast cancer patients for the rapid isolation of CTCs. Conclusively, the platform demonstrates a strong capacity for cancer cell sorting, biological studies of CTCs, and investigation of cancer metastasis, potentially benefiting real-time liquid biopsy applications and early cancer prognosis. View Manuscript Stay One Step Ahead of Cancer. Get the latest news and innovations from Actorius delivered straight to your inbox. Subscribe for regular updates Email* Yes, subscribe me for regular updates. * Subscribe