Download or read book Microfluidic Systems for in Situ Molecular Characterization of Circulating Tumor Cells written by Karla Perez Toralla and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Microfluidic Device for Capturing Circulating Tumor Cells written by Nika Nikbakht and published by . This book was released on 2015 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Circulating tumor cells (CTCs) are cells that shed into the vasculature from a primary tumor and circulate in the bloodstream. CTCs can be used to elucidate the molecular characterization of the tumor cells and to gauge the efficiency of therapeutic treatment in metastatic carcinoma patients. They can also be used to determine the primary site of the tumor in areas where the tumor is undetectable with traditional oncological imaging. The detection of CTCs has a substantial value for prognostic and therapeutic implications, but they are not easily detected because of their low cell count. Because microfluidic devices are useful for cell detection and diagnosis, can be easily obtained, and are less invasive than tissue biopsies, we have developed a microfluidic platform to capture CTCs using multiple capture targets to achieve a higher cell capture. We can selectively isolate the cancer cells using specific antibodies to the antigen capture target on the surface of malignant cells. The capture efficiency was evaluated by the flow rate, cell count, and antibody immobilization. Cancer cell lines that were known to have high expression for targeted ligands, specifically HER2, EGFR, EpCAM, and MUC-1, were tested with antibodies specific to these ligands. We obtained capture efficiency with these different capture targets on a single channel. This allowed us to develop a device with four parallel capture channels to run in series with the anticipation of achieving higher cell capture.
Download or read book Microfluidic Methods for Molecular Biology written by Chang Lu and published by Springer. This book was released on 2016-05-14 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the state-of-the-art research on molecular biology assays and molecular techniques enabled or enhanced by microfluidic platforms. Topics covered include microfluidic methods for cellular separations and single cell studies, droplet-based approaches to study protein expression and forensics, and microfluidic in situ hybridization for RNA analysis. Key molecular biology studies using model organisms are reviewed in detail. This is an ideal book for students and researchers in the microfluidics and molecular biology fields as well as engineers working in the biotechnology industry. This book also: Reviews exhaustively the latest techniques for single-cell genetic, epigenetic, metabolomic, and proteomic analysis Illustrates microfluidic approaches for inverse metabolic engineering, as well as analysis of circulating exosomes Broadens readers’ understanding of microfluidics convection-based PCR technology, microfluidic RNA-seq, and microfluidics for robust mobile diagnostics
Download or read book Microfluidic Device Design for Capturing Circulating Tumor Cells written by Shrutilaya Karunanidhi and published by . This book was released on 2013 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cells that break off from the primary tumor, known as circulating tumor cells are often the cause of metastasis in cancer patients. Their isolation and characterization is pivotal for various reasons such as molecular characterization of the tumor cells, treatment monitoring, and also to determine the primary site of the tumor in cases where the tumor itself is undetectable, however, this task remains a major challenge as these cells are extremely rare in the blood vessels. Numerous research groups have presented microfluidic approaches that are capable of isolation and capture of rare cells. Recently, inertial microfluidics is one such approach that has gained much attention for this application. In these systems, various hydrodynamic forces generated in the microchannels are used for size-based focusing of particles into distinct streams. Based on this concept, we developed fourteen different microfluidic devices using poly(dimethylsiloxane) (PDMS) polymer. Each device had a typical set of nine parameters like channel width, location of branches, position of first branch and number of loops. The devices were tested with a binary mixture of polystyrene beads as the sample solution at various flow rates and concentration ratios. Several hypotheses were tested and inferences were drawn to determine the most efficient design in terms of the capture efficiency and isolation efficiency of the device. The final device design achieved an isolation and capture efficiency of>90%, thereby, making it a better alternate for cancer screening.
Download or read book Isolation and Molecular Characterization of Circulating Tumor Cells written by Mark Jesus M. Magbanua and published by Springer. This book was released on 2017-05-29 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous studies have shown that elevated levels of circulating tumor cells (CTCs) in blood of cancer patients are associated with poor response to treatment and inferior survival probabilities. Despite this clinical significance, the molecular biology of CTCs remains poorly understood. The paucity in molecular information can be attributed to the tremendous technical challenges involved in isolating these extremely rare cells. Recent technological advancements in rare-cell technology, however, have allowed for the reliable enrichment and isolation of CTCs. Consequently, the use of recently developed molecular approaches —e.g., multiplexed QPCR, microarray, and next generation sequencing analyses— to profile CTCs have provided novel insights into the molecular makeup of these tumor cells. This book discusses approaches for enrichment and isolation of CTCs as well as recent advances in comprehensive molecular profiling of CTCs using cutting-edge omics technology.
Download or read book Microfluidic Platform for Capturing Circulating Tumor Cells from Whole Blood written by Sweta Gupta and published by . This book was released on 2011 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viable tumor cells that are disseminated in the blood stream, also known as circulating tumor cells (CTCs), are often the cause of metastasis in cancer patients. Although these cells are rare in blood, they can be isolated and used to study various aspects of the tumor such as molecular characterization of the tumor cells, effectiveness of treatment therapies in metastatic carcinoma patients, and also to determine the primary site of the tumor in cases where the tumor itself is undetectable. Previous researches have demonstrated microfluidic platforms capable of selectively capturing rare cells from raw liquid samples, using adhesion-mediated binding of the target cells with complementary ligand proteins that are immobilized on arrays of micropillars. In these systems, the circular or square shaped micropillars which provide increased surface area for cell-protein interactions, were fabricated on a silicon chip by an expensive and skillfully demanding technique called deep reactive ion etching (DRIE) [1,2]. Based on the concept of protein-coated micropillars, we used soft lithographic techniques to develop microfluidic devices using poly(dimethylsiloxane) (PDMS) polymer. PDMS molds consisting of thirty five different device designs with varied micropillar features like shape, size, spacing, and array arrangement were fabricated. The devices were tested with five different cancer cell lines, at different flow rates and cell concentrations, and a comparative study was performed to determine the most efficient design in terms of cell capture efficiency. Some designs achieved mean capture yields of>45%, thereby making this low-cost, quick and easy technique an attractive cancer screening tool.
Download or read book Immunomagnetic Microfluidic Screening System for Circulating Tumor Cells Detection and Analysis written by Yu-Yen Huang and published by . This book was released on 2013 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Circulating tumor cells (CTCs) are known to escape from the primary tumor site and may settle down at the distant organ to grow a second tumor. CTCs are one of causes initiating carcinoma metastasis. Detection of CTCs has been considered to be valuable for cancer management, including diagnosis, prognosis, and clinical treatment management. However, efficient isolation, enumeration, characterization, and genetic analysis of CTCs in whole-blood samples from cancer patients are very challenging due to their extremely low concentration and rare nature (per CTC in blood cells is 1:106-109). With the increasing worldwide death rate associated with cancer, there is a desperate demand for a high-sensitivity, high-throughput, and low-cost detection and separation system. My doctoral research focused on the design and fabrications of the screening system for the detection of CTCs with further analysis of captured CTCs, such as immunofluoresce staining and fluorescence in-situ hybridization (FISH). The distinct significance of this research is that the development of the computer-controlled rotational holder with a series of six inverted microfluidic chips reduced the cost by significantly reducing the consumption of magnetic carriers (25% of the consumed amount used in the commercial CellSearch® system), increasing the capture efficiency by manipulating the blood sedimentation in the microchannel, enhancing the system stability by integrating the micromagnets on the plain glass slide substrate, and achieving high throughput because of the high flow rate (2.5 mL/hr) and large screening volume (screening up to six chips in parallel with each containing 2.5 mL of blood). Immunofluorescence staining and the FISH method have been performed to prove the capability of the system. In addition, the system has been successfully applied for patient samples screening. The incorporation of micromagnets has demonstrated that micromagnets provide localized magnetic forces to scatter the target cancer cells and free nanoparticles throughout the whole channel substrate to increase the channel space usage by 13%. Four cancer cell lines, including COLO 205 (colorectal cancer), SK-BR-3 (breast cancer), MCF-7 (breast cancer), and PC3 (prostate cancer), were spiked in blood samples from healthy donors to verify high capture efficiency of the developed system. On average, over a 97% capture rate was demonstrated for all cell lines. Moreover, the developed screening system has been successfully screened over 40 patient samples, including metastatic lung cancer, breast cancer, prostate cancer, and colorectal cancer. After capture of CTCs, immunofluorescence staining was used to identified the captured cancer cells and the FISH method was performed to characterize the isolated cancer cells by studying the gene expression of CTCs from breast cancer. The proposed automated immunomagnetic microchip-based screening system shows high capture efficiency (average 97% for three spiked cell lines), high throughput (15 mL of blood sample per screening), high sensitivity, high specificity, and low nanoparticle consumption (75% less than CellSearch® system). The screening system provides great promise as a clinical tool for early cancer diagnosis, diagnosis, personalized therapy, and treatment monitoring.
Download or read book Circulating Tumor Cells written by Catherine Alix-Panabieres and published by MDPI. This book was released on 2020-04-03 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The analysis of circulating tumor cells (CTCs) as a real-time liquid biopsy approach can be used to obtain new insights into metastasis biology, and as companion diagnostics to improve the stratification of therapies and to obtain insights into the therapy-induced selection of cancer cells. In this book, we will cover all the different facets of CTCs to assemble a huge corpus of knowledge on cancer dissemination: technologies for their enrichment, detection, and characterization; their analysis at the single-cell level; their journey as CTC microemboli; their clinical relevance; their biology with the epithelial-to-mesenchymal transition (EMT); their stem-cell properties; their potential to initiate metastasis at distant sites; their ex vivo expansion; and their escape from the immune system.
Download or read book Cell Analysis on Microfluidics written by Jin-Ming Lin and published by Springer. This book was released on 2017-10-25 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a detailed overview of the design, formatting, application, and development of microfluidic chips in the context of cell biology research, enumerating each element involved in microfluidics-based cell analysis, discussing its history, status quo, and future prospects, It also offers an extensive review of the research completed in the past decade, including numerous color figures. The individual chapters are based on the respective authors' studies and experiences, providing tips from the frontline to help researchers overcome bottlenecks in their own work. It highlights a number of cutting-edge techniques, such as 3D cell culture, microfluidic droplet technique, and microfluidic chip-mass spectrometry interfaces, offering a first-hand impression of the latest trends in the field and suggesting new research directions. Serving as both an elementary introduction and advanced guidebook, the book interests and inspires scholars and students who are currently studying microfluidics-based cell analysis methods as well as those who wish to do so.
Download or read book Circulating Tumor Cells written by Richard J. Cote and published by Springer. This book was released on 2016-02-03 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides the latest research on circulating tumor cells aimed for cancer researchers, scientists, and molecular oncologists. It presents the basic concepts behind circulating tumor cells (CTCs), metastatic biology, and potential applications as to how CTCs can be used in diagnostic biomarkers. CTCs are cells that have detached from the primary tumor and circulate in the bloodstream. Such cells may become "seeds" for the growth of additional tumors. The field of analysis surrounding cancer metastasis has been steadily growing, and CTCs provide effective biomarkers that can be examined in peripheral blood through a minimally invasive “liquid biopsy” procedure. CTCs offer several exciting applications, not only as markers of disease progression but also as biomarkers of monitoring response to therapy and companion diagnostics for novel anticancer drug development. In recent years there has been rapid growth and worldwide developments on CTCs, which span both the basic sciences and biomedical engineering fields.
Download or read book Minimal Residual Disease and Circulating Tumor Cells in Breast Cancer written by Michail Ignatiadis and published by Springer Science & Business Media. This book was released on 2012-04-23 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book provides up-to-date information on a series of topical issues relating to the approach to minimal residual disease in breast cancer patients. It first explains how the study of minimal residual disease and circulating and disseminated tumor cells (CTCs/DTCs) can assist in the understanding of breast cancer metastasis. A series of chapters then discuss the various technologies available for the detection and characterization of CTCs and DTCs, pinpointing their merits and limitations. Detailed consideration is given to the relevance of CTCs and DTCs, and their detection, to clinical research and practice. The role of other blood-based biomarkers is also addressed, and the closing chapters debate the challenges facing drug and biomarker co-development and the use of CTCs for companion diagnostic development. This book will be of interest and assistance to all who are engaged in the modern management of breast cancer.
Download or read book Microfluidics written by Yu Song and published by John Wiley & Sons. This book was released on 2018-05-07 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book offering a global overview of fundamental microfluidics and the wide range of possible applications, for example, in chemistry, biology, and biomedical science. As such, it summarizes recent progress in microfluidics, including its origin and development, the theoretical fundamentals, and fabrication techniques for microfluidic devices. The book also comprehensively covers the fluid mechanics, physics and chemistry as well as applications in such different fields as detection and synthesis of inorganic and organic materials. A useful reference for non-specialists and a basic guideline for research scientists and technicians already active in this field or intending to work in microfluidics.
Download or read book Circulating Tumor Cells written by Z. Hugh Fan and published by John Wiley & Sons. This book was released on 2016-03-25 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces the reader to Circulating Tumor Cells (CTCs), their isolation method and analysis, and commercially available platforms Presents the historical perspective and the overview of the field of circulating tumor cells (CTCs) Discusses the state-of-art methods for CTC isolation, ranging from the macro- to micro-scale, from positive concentration to negative depletion, and from biological-property-enabled to physical-property-based approaches Details commercially available CTC platforms Describes post-isolation analysis and clinical translation Provides a glossary of scientific terms related to CTCs
Download or read book Microdevices and Microsystems for Cell Manipulation written by Aaron T. Ohta and published by MDPI. This book was released on 2018-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Microdevices and Microsystems for Cell Manipulation" that was published in Micromachines
Download or read book Tietz Textbook of Clinical Chemistry and Molecular Diagnostics written by Nader Rifai and published by Elsevier Health Sciences. This book was released on 2017-01-16 with total page 1888 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tietz Textbook of Clinical Chemistry and Molecular Diagnostics, 6th Edition provides the most current and authoritative guidance on selecting, performing, and evaluating the results of new and established laboratory tests. This classic clinical chemistry reference offers encyclopedic coverage detailing everything you need to know, including: analytical criteria for the medical usefulness of laboratory tests, variables that affect tests and results, laboratory medicine, applications of statistical methods, and most importantly clinical utility and interpretation of laboratory tests. It is THE definitive reference in clinical chemistry and molecular diagnostics, now fully searchable and with quarterly content updates, podcasts, clinical cases, animations, and extended content online through Expert Consult. Analytical criteria focus on the medical usefulness of laboratory procedures. Reference ranges show new approaches for establishing these ranges — and provide the latest information on this topic. Lab management and costs gives students and chemists the practical information they need to assess costs, allowing them to do their job more efficiently and effectively. Statistical methods coverage provides you with information critical to the practice of clinical chemistry. Internationally recognized chapter authors are considered among the best in their field. Two-color design highlights important features, illustrations, and content to help you find information easier and faster. NEW! Internationally recognized chapter authors are considered among the best in their field. NEW! Expert Consult features fully searchable text, quarterly content updates, clinical case studies, animations, podcasts, atlases, biochemical calculations, multiple-choice questions, links to Medline, an image collection, and audio interviews. You will now enjoy an online version making utility of this book even greater. UPDATED! Expanded Molecular Diagnostics section with 12 chapters that focus on emerging issues and techniques in the rapidly evolving and important field of molecular diagnostics and genetics ensures this text is on the cutting edge and of the most value. NEW! Comprehensive list of Reference Intervals for children and adults with graphic displays developed using contemporary instrumentation. NEW! Standard and international units of measure make this text appropriate for any user — anywhere in the world. NEW! 22 new chapters that focus on applications of mass spectrometry, hematology, transfusion medicine, microbiology, biobanking, biomarker utility in the pharmaceutical industry and more! NEW! Expert senior editors, Nader Rifai, Carl Wittwer and Rita Horvath, bring fresh perspectives and help ensure the most current information is presented. UPDATED! Thoroughly revised and peer-reviewed chapters provide you with the most current information possible.
Download or read book Applications of Microfluidic Systems in Biology and Medicine written by Manabu Tokeshi and published by Springer. This book was released on 2019-04-25 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on state-of-the-art microfluidic research in medical and biological applications. The top-level researchers in this research field explain carefully and clearly what can be done by using microfluidic devices. Beginners in the field —undergraduates, engineers, biologists, medical researchers—will easily learn to understand microfluidic-based medical and biological applications. Because a wide range of topics is summarized here, it also helps experts to learn more about fields outside their own specialties. The book covers many interesting subjects, including cell separation, protein crystallization, single-cell analysis, cell diagnosis, point-of-care testing, immunoassay, embyos/worms on a chip and organ-on-a-chip. Readers will be convinced that microfluidic devices have great potential for medical and biological applications.
Download or read book Microfluidics for Single Cell Analysis written by Jin-Ming Lin and published by Springer Nature. This book was released on 2019-08-28 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the various microfluidic-based approaches for single-cell capture, isolation, manipulation, culture and observation, lysis, and analysis. Single-cell analysis reveals the heterogeneities in morphology, functions, composition, and genetic performance of seemingly identical cells, and advances in single-cell analysis can overcome the difficulties arising due to cell heterogeneity in the diagnostics for a targeted model of disease. This book provides a detailed review of the state-of-the-art techniques presenting the pros and cons of each of these methods. It also offers lessons learned and tips from front-line investigators to help researchers overcome bottlenecks in their own studies. Highlighting a number of techniques, such as microfluidic droplet techniques, combined microfluidics-mass-spectrometry systems, and nanochannel sampling, it describes in detail a new microfluidic chip-based live single-cell extractor (LSCE) developed in the editor’s laboratory, which opens up new avenues to use open microfluidics in single-cell extraction, single-cell mass spectrometric analysis, single-cell adhesion analysis and subcellular operations. Serving as both an elementary introduction and advanced guidebook, this book interests and inspires scholars and students who are currently studying or wish to study microfluidics-based cell analysis methods.
