1
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Vatankhahan H, Esteki F, Jabalameli MA, Kiani P, Ehtiati S, Movahedpour A, Vakili O, Khatami SH. Electrochemical biosensors for early diagnosis of glioblastoma. Clin Chim Acta 2024; 557:117878. [PMID: 38493942 DOI: 10.1016/j.cca.2024.117878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Glioblastoma (GBM) is a highly aggressive and life-threatening neurological malignancy of predominant astrocyte origin. This type of neoplasm can develop in either the brain or the spine and is also known as glioblastoma multiforme. Although current diagnostic methods such as magnetic resonance imaging (MRI) and positron emission tomography (PET) facilitate tumor location, these approaches are unable to assess disease severity. Furthermore, interpretation of imaging studies requires significant expertise which can have substantial inter-observer variability, thus challenging diagnosis and potentially delaying treatment. In contrast, biosensing systems offer a promising alternative to these traditional approaches. These technologies can continuously monitor specific molecules, providing valuable real-time data on treatment response, and could significantly improve patient outcomes. Among various types of biosensors, electrochemical systems are preferred over other types, as they do not require expensive or complex equipment or procedures and can be made with readily available materials and methods. Moreover, electrochemical biosensors can detect very small amounts of analytes with high accuracy and specificity by using various signal amplification strategies and recognition elements. Considering the advantages of electrochemical biosensors compared to other biosensing methods, we aim to highlight the potential application(s) of these sensors for GBM theranostics. The review's innovative insights are expected to antecede the development of novel biosensors and associated diagnostic platforms, ultimately restructuring GBM detection strategies.
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Affiliation(s)
- Hamid Vatankhahan
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farnaz Esteki
- Department of Medical Laboratory Sciences, School of Paramedicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Amin Jabalameli
- Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Pouria Kiani
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sajad Ehtiati
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran; Autophagy Research Center, Department of Clinical Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Seyyed Hossein Khatami
- Student Research Committee, Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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2
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Dehghani P, Karthikeyan V, Tajabadi A, Assi DS, Catchpole A, Wadsworth J, Leung HY, Roy VAL. Rapid Near-Patient Impedimetric Sensing Platform for Prostate Cancer Diagnosis. ACS OMEGA 2024; 9:14580-14591. [PMID: 38560003 PMCID: PMC10976404 DOI: 10.1021/acsomega.4c00843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/01/2024] [Indexed: 04/04/2024]
Abstract
With the global escalation of concerns surrounding prostate cancer (PCa) diagnosis, reliance on the serologic prostate-specific antigen (PSA) test remains the primary approach. However, the imperative for early PCa diagnosis necessitates more effective, accurate, and rapid diagnostic point-of-care (POC) devices to enhance the result reliability and minimize disease-related complications. Among POC approaches, electrochemical biosensors, known for their amenability and miniaturization capabilities, have emerged as promising candidates. In this study, we developed an impedimetric sensing platform to detect urinary zinc (UZn) in both artificial and clinical urine samples. Our approach lies in integrating label-free impedimetric sensing and the introduction of porosity through surface modification techniques. Leveraging a cellulose acetate/reduced graphene oxide composite, our sensor's recognition layer is engineered to exhibit enhanced porosity, critical for improving the sensitivity, capture, and interaction with UZn. The sensitivity is further amplified by incorporating zincon as an external dopant, establishing highly effective recognition sites. Our sensor demonstrates a limit of detection of 7.33 ng/mL in the 0.1-1000 ng/mL dynamic range, which aligns with the reference benchmark samples from clinical biochemistry. Our sensor results are comparable with the results of inductively coupled plasma mass spectrometry (ICP-MS) where a notable correlation of 0.991 is achieved. To validate our sensor in a real-life scenario, tests were performed on human urine samples from patients being investigated for prostate cancer. Testing clinical urine samples using our sensing platform and ICP-MS produced highly comparable results. A linear correlation with R2 = 0.964 with no significant difference between two groups (p-value = 0.936) was found, thus confirming the reliability of our sensing platform.
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Affiliation(s)
- Parisa Dehghani
- James
Watt School of Engineering, University of
Glasgow, Glasgow G12 8QQ, U.K.
| | | | - Ataollah Tajabadi
- James
Watt School of Engineering, University of
Glasgow, Glasgow G12 8QQ, U.K.
| | - Dani S. Assi
- James
Watt School of Engineering, University of
Glasgow, Glasgow G12 8QQ, U.K.
| | - Anthony Catchpole
- Scottish
Trace Element and Micronutrient Diagnostic and Research Laboratory,
Department of Biochemistry, Royal Infirmary, Glasgow G31 2ER, U.K.
| | - John Wadsworth
- Scottish
Trace Element and Micronutrient Diagnostic and Research Laboratory,
Department of Biochemistry, Royal Infirmary, Glasgow G31 2ER, U.K.
| | - Hing Y. Leung
- Cancer
Research UK Scotland Institute, Glasgow G61 1BD, U.K.
- School
of Cancer Sciences, MVLS, University of
Glasgow, Glasgow G61 1BD, U.K.
| | - Vellaisamy A. L. Roy
- School
of Science and Technology, Hong Kong Metropolitan
University, Ho Man Tin, Hong Kong
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3
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Mohseni N, Moodi M, Kefayat A, Shokati F, Molaabasi F. Challenges and Opportunities of Using Fluorescent Metal Nanocluster-Based Colorimetric Assays in Medicine. ACS OMEGA 2024; 9:3143-3163. [PMID: 38284078 PMCID: PMC10809695 DOI: 10.1021/acsomega.3c06884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/27/2023] [Accepted: 12/14/2023] [Indexed: 01/30/2024]
Abstract
Development of rapid colorimetric methods based on novel optical-active metal nanomaterials has provided methods for the detection of ions, biomarkers, cancers, etc. Fluorescent metal nanoclusters (FMNCs) have gained a lot of attention due to their unique physical, chemical, and optical properties providing numerous applications from rapid and sensitive detection to cellular imaging. However, because of very small color changes, their colorimetric applications for developing rapid tests based on the naked eye or simple UV-vis absorption spectrophotometry are still limited. FMNCs with peroxidase-like activity have significant potential in a wide variety of applications, especially for point-of-care diagnostics. In this review, the effect of using various capping agents and metals for the preparation of nanoclusters in their colorimetric sensing properties is explored, and the synthesis and detection mechanisms and the recent advances in their application for ultrasensitive chemical and biological analysis regarding human health are highlighted. Finally, the challenges that remain as well as the future perspectives are briefly discussed. Overcoming these limitations will allow us to expand the nanocluster's application for colorimetric diagnostic purposes in medical practice.
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Affiliation(s)
- Nasim Mohseni
- Biomaterials
and Tissue Engineering Research Group, Department of Interdisciplinary
Technologies, Breast Cancer Research Center,
Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Mohammad Moodi
- Department
of Materials Science and Engineering, Ferdowsi
University of Mashhad, Mashhad, Iran
| | - Amirhosein Kefayat
- Biomaterials
and Tissue Engineering Research Group, Department of Interdisciplinary
Technologies, Breast Cancer Research Center,
Motamed Cancer Institute, ACECR, Tehran, Iran
- Department
of Oncology, Isfahan University of Medical
Sciences, Isfahan, Iran
| | - Farhad Shokati
- Biomaterials
and Tissue Engineering Research Group, Department of Interdisciplinary
Technologies, Breast Cancer Research Center,
Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Fatemeh Molaabasi
- Biomaterials
and Tissue Engineering Research Group, Department of Interdisciplinary
Technologies, Breast Cancer Research Center,
Motamed Cancer Institute, ACECR, Tehran, Iran
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4
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Clark KM, Ray TR. Recent Advances in Skin-Interfaced Wearable Sweat Sensors: Opportunities for Equitable Personalized Medicine and Global Health Diagnostics. ACS Sens 2023; 8:3606-3622. [PMID: 37747817 DOI: 10.1021/acssensors.3c01512] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Recent advances in skin-interfaced wearable sweat sensors enable the noninvasive, real-time monitoring of biochemical signals associated with health and wellness. These wearable platforms leverage microfluidic channels, biochemical sensors, and flexible electronics to enable the continuous analysis of sweat-based biomarkers such as electrolytes, metabolites, and hormones. As this field continues to mature, the potential of low-cost, continuous personalized health monitoring enabled by such wearable sensors holds significant promise for addressing some of the formidable obstacles to delivering comprehensive medical care in under-resourced settings. This Perspective highlights the transformative potential of wearable sweat sensing for providing equitable access to cutting-edge healthcare diagnostics, especially in remote or geographically isolated areas. It examines the current understanding of sweat composition as well as recent innovations in microfluidic device architectures and sensing strategies by showcasing emerging applications and opportunities for innovation. It concludes with a discussion on expanding the utility of wearable sweat sensors for clinically relevant health applications and opportunities for enabling equitable access to innovation to address existing health disparities.
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Affiliation(s)
- Kaylee M Clark
- Department of Mechanical Engineering, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Tyler R Ray
- Department of Mechanical Engineering, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96822, United States
- Department of Cell and Molecular Biology, John. A. Burns School of Medicine, University of Hawai'i at Ma̅noa, Honolulu, Hawaii 96813, United States
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5
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Brasier N, Ates HC, Sempionatto JR, Cotta MO, Widmer AF, Eckstein J, Goldhahn J, Roberts JA, Gao W, Dincer C. A three-level model for therapeutic drug monitoring of antimicrobials at the site of infection. THE LANCET. INFECTIOUS DISEASES 2023; 23:e445-e453. [PMID: 37348517 DOI: 10.1016/s1473-3099(23)00215-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/24/2023]
Abstract
The silent pandemic of bacterial antimicrobial resistance is a leading cause of death worldwide, prolonging hospital stays and raising health-care costs. Poor incentives to develop novel pharmacological compounds and the misuse of antibiotics contribute to the bacterial antimicrobial resistance crisis. Therapeutic drug monitoring (TDM) based on blood analysis can help alleviate the emergence of bacterial antimicrobial resistance and effectively decreases the risk of toxic drug concentrations in patients' blood. Antibiotic tissue penetration can vary in patients who are critically or chronically ill and can potentially lead to treatment failure. Antibiotics such as β-lactams and glycopeptides are detectable in non-invasively collectable biofluids, such as sweat and exhaled breath. The emergence of wearable sensors enables easy access to these non-invasive biofluids, and thus a laboratory-independent analysis of various disease-associated biomarkers and drugs. In this Personal View, we introduce a three-level model for TDM of antibiotics to describe concentrations at the site of infection (SOI) by use of wearable sensors. Our model links blood-based drug measurement with the analysis of drug concentrations in non-invasively collectable biofluids stemming from the SOI to characterise drug concentrations at the SOI. Finally, we outline the necessary clinical and technical steps for the development of wearable sensing platforms for SOI applications.
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Affiliation(s)
- Noé Brasier
- Institute for Translational Medicine, ETH Zurich, Zurich, Switzerland; Department of Digitalization & ICT, University Hospital Basel, Basel, Switzerland.
| | - H Ceren Ates
- FIT Freiburg Centre for Interactive Materials and Bioinspired Technology, University of Freiburg, Freiburg, Germany; Department of Microsystems Engineering, IMTEK, University of Freiburg, Freiburg, Germany
| | - Juliane R Sempionatto
- Andrew and Peggy Cherng Department of Medical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Menino O Cotta
- Faculty of Medicine, University of Queensland Centre for Clinical Research, The University of Queensland, Brisbane, QLD, Australia
| | - Andreas F Widmer
- Department of Infectious Disease and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Jens Eckstein
- Department of Digitalization & ICT, University Hospital Basel, Basel, Switzerland; Division for Internal Medicine, University Hospital Basel, Basel, Switzerland
| | - Jörg Goldhahn
- Institute for Translational Medicine, ETH Zurich, Zurich, Switzerland
| | - Jason A Roberts
- Faculty of Medicine, University of Queensland Centre for Clinical Research, The University of Queensland, Brisbane, QLD, Australia; Herston Infectious Diseases Institute (HeIDI), Metro North Health, Brisbane, QLD, Australia; Department of Pharmacy and Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia; Division of Anaesthesiology, Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, Nîmes, France
| | - Wei Gao
- Andrew and Peggy Cherng Department of Medical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Can Dincer
- FIT Freiburg Centre for Interactive Materials and Bioinspired Technology, University of Freiburg, Freiburg, Germany; Department of Microsystems Engineering, IMTEK, University of Freiburg, Freiburg, Germany.
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6
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Franco A, Autorino R. ExoDx test for prostate cancer: the future is liquid-Editorial Comment. Prostate Cancer Prostatic Dis 2023; 26:443-444. [PMID: 37573458 DOI: 10.1038/s41391-023-00707-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/13/2023] [Accepted: 07/27/2023] [Indexed: 08/14/2023]
Affiliation(s)
- Antonio Franco
- Department of Urology, Rush University, Chicago, IL, USA
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7
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Zhang Y, Yuan Q, Muzzammil HM, Gao G, Xu Y. Image-guided prostate biopsy robots: A review. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2023; 20:15135-15166. [PMID: 37679175 DOI: 10.3934/mbe.2023678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
At present, the incidence of prostate cancer (PCa) in men is increasing year by year. So, the early diagnosis of PCa is of great significance. Transrectal ultrasonography (TRUS)-guided biopsy is a common method for diagnosing PCa. The biopsy process is performed manually by urologists but the diagnostic rate is only 20%-30% and its reliability and accuracy can no longer meet clinical needs. The image-guided prostate biopsy robot has the advantages of a high degree of automation, does not rely on the skills and experience of operators, reduces the work intensity and operation time of urologists and so on. Capable of delivering biopsy needles to pre-defined biopsy locations with minimal needle placement errors, it makes up for the shortcomings of traditional free-hand biopsy and improves the reliability and accuracy of biopsy. The integration of medical imaging technology and the robotic system is an important means for accurate tumor location, biopsy puncture path planning and visualization. This paper mainly reviews image-guided prostate biopsy robots. According to the existing literature, guidance modalities are divided into magnetic resonance imaging (MRI), ultrasound (US) and fusion image. First, the robot structure research by different guided methods is the main line and the actuators and material research of these guided modalities is the auxiliary line to introduce and compare. Second, the robot image-guided localization technology is discussed. Finally, the image-guided prostate biopsy robot is summarized and suggestions for future development are provided.
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Affiliation(s)
- Yongde Zhang
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
- Foshan Baikang Robot Technology Co., Ltd, Nanhai District, Foshan City, Guangdong Province 528225, China
| | - Qihang Yuan
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
| | - Hafiz Muhammad Muzzammil
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
| | - Guoqiang Gao
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, China
| | - Yong Xu
- Department of Urology, the Third Medical Centre, Chinese PLA (People's Liberation Army) General Hospital, Beijing 100039, China
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8
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Al Salhi Y, Sequi MB, Valenzi FM, Fuschi A, Martoccia A, Suraci PP, Carbone A, Tema G, Lombardo R, Cicione A, Pastore AL, De Nunzio C. Cancer Stem Cells and Prostate Cancer: A Narrative Review. Int J Mol Sci 2023; 24:ijms24097746. [PMID: 37175453 PMCID: PMC10178135 DOI: 10.3390/ijms24097746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/17/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Cancer stem cells (CSCs) are a small and elusive subpopulation of self-renewing cancer cells with the remarkable ability to initiate, propagate, and spread malignant disease. In the past years, several authors have focused on the possible role of CSCs in PCa development and progression. PCa CSCs typically originate from a luminal prostate cell. Three main pathways are involved in the CSC development, including the Wnt, Sonic Hedgehog, and Notch signaling pathways. Studies have observed an important role for epithelial mesenchymal transition in this process as well as for some specific miRNA. These studies led to the development of studies targeting these specific pathways to improve the management of PCa development and progression. CSCs in prostate cancer represent an actual and promising field of research.
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Affiliation(s)
- Yazan Al Salhi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Manfredi Bruno Sequi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Fabio Maria Valenzi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Andrea Fuschi
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Alessia Martoccia
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Paolo Pietro Suraci
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Antonio Carbone
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Giorgia Tema
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Riccardo Lombardo
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Antonio Cicione
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Antonio Luigi Pastore
- Urology Unit, Department of Medico-Surgical Sciences & Biotechnologies, Faculty of Pharmacy & Medicine, Sapienza University of Rome, 04100 Latina, Italy
| | - Cosimo De Nunzio
- Urology Unit, Sant'Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy
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9
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Saha S, Sachdev M, Mitra SK. Recent advances in label-free optical, electrochemical, and electronic biosensors for glioma biomarkers. BIOMICROFLUIDICS 2023; 17:011502. [PMID: 36844882 PMCID: PMC9949901 DOI: 10.1063/5.0135525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Gliomas are the most commonly occurring primary brain tumor with poor prognosis and high mortality rate. Currently, the diagnostic and monitoring options for glioma mainly revolve around imaging techniques, which often provide limited information and require supervisory expertise. Liquid biopsy is a great alternative or complementary monitoring protocol that can be implemented along with other standard diagnosis protocols. However, standard detection schemes for sampling and monitoring biomarkers in different biological fluids lack the necessary sensitivity and ability for real-time analysis. Lately, biosensor-based diagnostic and monitoring technology has attracted significant attention due to several advantageous features, including high sensitivity and specificity, high-throughput analysis, minimally invasive, and multiplexing ability. In this review article, we have focused our attention on glioma and presented a literature survey summarizing the diagnostic, prognostic, and predictive biomarkers associated with glioma. Further, we discussed different biosensory approaches reported to date for the detection of specific glioma biomarkers. Current biosensors demonstrate high sensitivity and specificity, which can be used for point-of-care devices or liquid biopsies. However, for real clinical applications, these biosensors lack high-throughput and multiplexed analysis, which can be achieved via integration with microfluidic systems. We shared our perspective on the current state-of-the-art different biosensor-based diagnostic and monitoring technologies reported and the future research scopes. To the best of our knowledge, this is the first review focusing on biosensors for glioma detection, and it is anticipated that the review will offer a new pathway for the development of such biosensors and related diagnostic platforms.
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Affiliation(s)
| | - Manoj Sachdev
- Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Sushanta K. Mitra
- Micro and Nanoscale Transport Laboratory, Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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10
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Chan KM, Vasilev K, MacGregor M. Effects of Supplemental Drugs on Hexaminolevulinate (HAL)-Induced PpIX Fluorescence in Bladder Cancer Cell Suspensions. Int J Mol Sci 2022; 23:ijms23147631. [PMID: 35886979 PMCID: PMC9323055 DOI: 10.3390/ijms23147631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 12/04/2022] Open
Abstract
Seven different inhibitors of the heme metabolic pathway were applied in combination with HAL to study the formation of PpIX in bladder cancer HT1197 and normal fibroblast HFFF2 cells ex vivo, specifically with the aim to increase the fluorescence contrast between cancer and non-cancer cells. The mRNA expression of enzymes involved in the heme biosynthesis pathway were measured via PCR following incubation with the drugs in order to link the fluorescence levels and metabolic activity. The exogenous administration of HAL does lead to cancer-specific PpIX accumulation. However, the contrast between cancer and normal cells in suspension was not enhanced by the enzyme inhibitors and iron-chelating agents tested, nor did the mRNA expression necessarily correlate with the fluorescence intensity. The results indicate that a difference in the metabolic activity of cells in suspension may limit the applicability of exogenous enzyme inhibitor administration as a mean to improve the fluorescence-based detection of cancer cells shed in body fluids.
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Affiliation(s)
- Kit Man Chan
- UniSA STEM, University of South Australia, Adelaide, SA 5095, Australia;
| | - Krasimir Vasilev
- College of Medicine and Public Health, Flinders University, Bedford Park, SA 5042, Australia;
| | - Melanie MacGregor
- Flinders Institute for Nanoscale Science & Technology, College of Science and Engineering, Flinders University, Bedford Park, SA 5042, Australia
- Correspondence: ; Tel.: +61-8-8201-2574
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11
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Zimphango C, Alimagham FC, Carpenter KLH, Hutchinson PJ, Hutter T. Monitoring Neurochemistry in Traumatic Brain Injury Patients Using Microdialysis Integrated with Biosensors: A Review. Metabolites 2022; 12:metabo12050393. [PMID: 35629896 PMCID: PMC9146878 DOI: 10.3390/metabo12050393] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/14/2022] [Accepted: 04/20/2022] [Indexed: 02/04/2023] Open
Abstract
In a traumatically injured brain, the cerebral microdialysis technique allows continuous sampling of fluid from the brain’s extracellular space. The retrieved brain fluid contains useful metabolites that indicate the brain’s energy state. Assessment of these metabolites along with other parameters, such as intracranial pressure, brain tissue oxygenation, and cerebral perfusion pressure, may help inform clinical decision making, guide medical treatments, and aid in the prognostication of patient outcomes. Currently, brain metabolites are assayed on bedside analysers and results can only be achieved hourly. This is a major drawback because critical information within each hour is lost. To address this, recent advances have focussed on developing biosensing techniques for integration with microdialysis to achieve continuous online monitoring. In this review, we discuss progress in this field, focusing on various types of sensing devices and their ability to quantify specific cerebral metabolites at clinically relevant concentrations. Important points that require further investigation are highlighted, and comments on future perspectives are provided.
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Affiliation(s)
- Chisomo Zimphango
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK; (F.C.A.); (K.L.H.C.); (P.J.H.); (T.H.)
- Correspondence:
| | - Farah C. Alimagham
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK; (F.C.A.); (K.L.H.C.); (P.J.H.); (T.H.)
| | - Keri L. H. Carpenter
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK; (F.C.A.); (K.L.H.C.); (P.J.H.); (T.H.)
| | - Peter J. Hutchinson
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK; (F.C.A.); (K.L.H.C.); (P.J.H.); (T.H.)
| | - Tanya Hutter
- Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK; (F.C.A.); (K.L.H.C.); (P.J.H.); (T.H.)
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
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