1
|
Application of infrared thermography for estimating residual stress in ground anchors for maintenance. Sci Rep 2023; 13:36. [PMID: 36593276 PMCID: PMC9807557 DOI: 10.1038/s41598-022-27222-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Characterizing the integrity of ground anchors is essential for examining their usability in the maintenance of soil structure. However, the lift-off test, which is generally used for this purpose, has limitations when applied to covering all installed ground anchors. The objective of this study is to assess the possibility of using infrared thermography to measure the residual stress in ground anchors as a noncontact technique that bypasses the disadvantages associated with existing techniques. A preliminary experiment is performed to determine the exact emissivity of the tested materials. Both passive and active methods, as representative techniques in infrared thermography, are applied. In the large-scale experiment, infrared images of four installed strands with growing stress in the range of 0-400 kPa at 100 kPa intervals are used in the passive method of measurement. For the active method, these same stress ranges are applied to a heated anchor head using a UTM machine. The results of the passive method show that the temperature increased and decreased according to load and unload steps. Values for the cooling rate index are deduced through the active method results, and reliable behavior are observed at 10 and 15 min. The number of pixels with huge temperature changes also changed with the loading step in both passive and active methods. This study demonstrates that infrared thermography is a suitable alternative method for assessing the residual stress in ground anchors as a type of noncontact technique.
Collapse
|
2
|
Chen R, Wang Y, Xu Y, He Y, Li Q, Xia C, Zhang B. RRBP1 depletion of bone metastatic cancer cells contributes to enhanced expression of the osteoblastic phenotype. Front Oncol 2022; 12:1005152. [PMID: 36568157 PMCID: PMC9782440 DOI: 10.3389/fonc.2022.1005152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
Bone metastatic cancer-secreted extracellular factors are capable of modifying the bone microenvironment through interacting with bone cells, including osteoblasts. Reticulum ribosome-binding protein 1 (RRBP1) is substantially expressed in certain bone metastatic cancer cells. This study was undertaken to determine whether RRBP1 from bone metastatic cancer cells affects the osteoblastic phenotype expression. Breast and prostate cancer cells, MDA-MB-231 and PC3, were cultured, respectively, followed by collecting conditioned mediums (CMs) and identifying the abundance of RRBP1 in CMs using LC-MS/MS. MC3T3-E1 cells were cultured with a mixed medium (including CMs from shRRBP1-transduced two-type cancer cells) with or without endoplasmic reticulum (ER) stress inhibitor 4-PBA, followed by measuring the levels of osteoblastic phenotype expression and biomarkers of ER stress using western blotting, qPCR, and ARS staining, respectively. Similar experiments were performed in shRrbp1-transduced MC3T3-E1 cells cultured with a mixed medium (including CMs from the two-type cancer cells). Bone formation parameters were measured in the tibia of nude mice injected with shRRBP1-transduced two-type cancer cells using micro-CT analysis. These results showed that RRBP1 is the sole shared high-abundance protein in CMs from the two-type cancer cells, involving osteoblast differentiation. CMs from shRRBP1-transduced two-type cells boosted the osteoblastic phenotype expression partially through increasing ER stress. CMs from the two-type cancer cells partially offset the similar alterations induced by shRrbp1 in MC3T3-E1 cells. Injection with shRRBP1-transduced two-type cells ameliorated the bone lesions in nude mice. Therefore, RRBP1 depletion of bone metastatic cancer enhanced the osteoblastic phenotype expression, suggesting a role of RRBP1 in the bone microenvironment.
Collapse
Affiliation(s)
- Rui Chen
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yue Wang
- Bone & Joint Research Institute, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yang Xu
- Bone & Joint Research Institute, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Yaohui He
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, China
| | - Qing Li
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian, China,*Correspondence: Qing Li, ; Chun Xia, ; Bing Zhang,
| | - Chun Xia
- Bone & Joint Research Institute, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China,*Correspondence: Qing Li, ; Chun Xia, ; Bing Zhang,
| | - Bing Zhang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian, China,*Correspondence: Qing Li, ; Chun Xia, ; Bing Zhang,
| |
Collapse
|
3
|
Liang Y, Zhou A, Yoon JY. Machine Learning-Based Quantification of (-)- trans-Δ-Tetrahydrocannabinol from Human Saliva Samples on a Smartphone-Based Paper Microfluidic Platform. ACS OMEGA 2022; 7:30064-30073. [PMID: 36061666 PMCID: PMC9434788 DOI: 10.1021/acsomega.2c03099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
(-)-trans-Δ-Tetrahydrocannabinol (THC) is a major psychoactive component in cannabis. Despite the recent trends of THC legalization for medical or recreational use in some areas, many THC-driven impairments have been verified. Therefore, convenient, sensitive, quantitative detection of THC is highly needed to improve its regulation and legalization. We demonstrated a biosensor platform to detect and quantify THC with a paper microfluidic chip and a handheld smartphone-based fluorescence microscope. Microfluidic competitive immunoassay was applied with anti-THC-conjugated fluorescent nanoparticles. The smartphone-based fluorescence microscope counted the fluorescent nanoparticles in the test zone, achieving a 1 pg/mL limit of detection from human saliva samples. Specificity experiments were conducted with cannabidiol (CBD) and various mixtures of THC and CBD. No cross-reactivity to CBD was found. Machine learning techniques were also used to quantify the THC concentrations from multiple saliva samples. Multidimensional data were collected by diluting the saliva samples with saline at four different dilutions. A training database was established to estimate the THC concentration from multiple saliva samples, eliminating the sample-to-sample variations. The classification algorithms included k-nearest neighbor (k-NN), decision tree, and support vector machine (SVM), and the SVM showed the best accuracy of 88% in estimating six different THC concentrations. Additional validation experiments were conducted using independent validation sample sets, successfully identifying positive samples at 100% accuracy and quantifying the THC concentration at 80% accuracy. The platform provided a quick, low-cost, sensitive, and quantitative point-of-care saliva test for cannabis.
Collapse
Affiliation(s)
- Yan Liang
- Department
of Chemistry and Biochemistry, The University
of Arizona, Tucson, Arizona 85721, United States
| | - Avory Zhou
- Department
of Biomedical Engineering, The University
of Arizona, Tucson, Arizona 85721, United
States
| | - Jeong-Yeol Yoon
- Department
of Chemistry and Biochemistry, The University
of Arizona, Tucson, Arizona 85721, United States
- Department
of Biomedical Engineering, The University
of Arizona, Tucson, Arizona 85721, United
States
| |
Collapse
|
4
|
Learned Block Iterative Shrinkage Thresholding Algorithm for Photothermal Super Resolution Imaging. SENSORS 2022; 22:s22155533. [PMID: 35898038 PMCID: PMC9330715 DOI: 10.3390/s22155533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/16/2022] [Accepted: 07/21/2022] [Indexed: 02/01/2023]
Abstract
Block-sparse regularization is already well known in active thermal imaging and is used for multiple-measurement-based inverse problems. The main bottleneck of this method is the choice of regularization parameters which differs for each experiment. We show the benefits of using a learned block iterative shrinkage thresholding algorithm (LBISTA) that is able to learn the choice of regularization parameters, without the need to manually select them. In addition, LBISTA enables the determination of a suitable weight matrix to solve the underlying inverse problem. Therefore, in this paper we present LBISTA and compare it with state-of-the-art block iterative shrinkage thresholding using synthetically generated and experimental test data from active thermography for defect reconstruction. Our results show that the use of the learned block-sparse optimization approach provides smaller normalized mean square errors for a small fixed number of iterations. Thus, this allows us to improve the convergence speed and only needs a few iterations to generate accurate defect reconstruction in photothermal super-resolution imaging.
Collapse
|
5
|
Thapa D, Samadi N, Baker A, dos Santos C, Trahtemberg U, Tabatabaei N. Rapid and Low-Cost Detection and Quantification of SARS-CoV-2 Antibody Titers of ICU Patients with Respiratory Deterioration Using a Handheld Thermo-Photonic Device. Biomedicines 2022; 10:biomedicines10061424. [PMID: 35740446 PMCID: PMC9220023 DOI: 10.3390/biomedicines10061424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 02/07/2023] Open
Abstract
While research suggests that COVID-19 vaccines are effective in producing anti-SARS-CoV-2 antibodies that reduce the risk of COVID-19 and its potentially severe complications, how long these antibodies persist after the infection/vaccination is unknown. Longitudinal studies and rapid and scalable platforms are needed for large-scale sero-diagnosis and vaccine evaluation. In this study, we examine the efficacy of our recently-developed handheld thermo-photonic device for rapid and low-cost assessment of the adaptive immune response of COVID+ and COVID− patients admitted to the intensive care unit (ICU) at a local hospital due to respiratory deterioration. Antibody testing included detection and quantification of IgG and IgM via thermo-photonic sensing of a commercially available COVID-19 IgG/IgM rapid test as well as standard measurements with quantitative enzyme-linked immunosorbent assays (qELISA). The results demonstrate that the thermo-photonic reader in conjunction with COVID-19 IgG/IgM test cassettes can detect and quantify IgG levels in COVID-19 antibody assays within the clinically relevant range and with a high correlation to those obtained from qELISA. We also found that the IgG antibody is more reliable for detecting individuals with an adaptive immune response to SARS-CoV-2 compared to the IgM antibody. The developed reader offers a low-cost, portable, and scalable solution for accessing the antibody titer of individuals against SARS-CoV-2 and can be used in local hospital settings.
Collapse
Affiliation(s)
- Damber Thapa
- Department of Mechanical Engineering, York University, Toronto, ON M3J 1P3, Canada; (D.T.); (N.S.)
| | - Nakisa Samadi
- Department of Mechanical Engineering, York University, Toronto, ON M3J 1P3, Canada; (D.T.); (N.S.)
| | - Andrew Baker
- Interdepartmental Division of Critical Care, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (A.B.); (C.d.S.)
| | - Claudia dos Santos
- Interdepartmental Division of Critical Care, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (A.B.); (C.d.S.)
| | - Uriel Trahtemberg
- Critical Care Department, Galilee Medical Center, Nahariya 2210001, Israel;
- Keenan Research Centre of Biomedical Science, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada
| | - Nima Tabatabaei
- Department of Mechanical Engineering, York University, Toronto, ON M3J 1P3, Canada; (D.T.); (N.S.)
- Correspondence:
| |
Collapse
|
6
|
Hamada K, Hirakawa E, Asano H, Hayashi H, Mine T, Ichikawa T, Nagata Y. Infrared Thermography with High Accuracy in a Neonatal Incubator. Ann Biomed Eng 2022; 50:529-539. [PMID: 35237903 PMCID: PMC8890465 DOI: 10.1007/s10439-022-02937-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/17/2022] [Indexed: 11/26/2022]
Abstract
As the accuracy of body temperature measurement is especially critical in premature infants on admission to the neonatal intensive care unit (NICU), noninvasive measurement using infrared thermography (IRT) has not been widely adopted in the NICU due to a lack of evidence regarding its accuracy. We have established a new calibration method for IRT in an incubator, and evaluated its accuracy and reliability at different incubator settings using a variable-temperature blackbody furnace. This method improved the accuracy and reliability of IRT with an increase in percentage of data with mean absolute error (MAE) < 0.3 °C to 93.1% compared to 4.2% using the standard method. Two of three IRTs had MAE < 0.1 °C under all conditions examined. This method provided high accuracy not only for measurements at specific times but also for continuous monitoring. It will also contribute to avoiding the risk of neonates' skin trouble caused by attaching a thermistor. This study will facilitate the development of novel means of administering neonatal body temperature.
Collapse
Affiliation(s)
- Keisuke Hamada
- Department of Clinical Engineering, Nagasaki Harbor Medical Center, Nagasaki, Nagasaki, Japan.
- Department of Comprehensive Community Care Systems, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan.
| | - Eiji Hirakawa
- Department of Neonatology, Kagoshima City Hospital, Kagoshima, Kagoshima, Japan
| | - Hidetsugu Asano
- Research & Development Group, Technical Department, Atom Medical Corporation, Saitama, Saitama, Japan
| | - Hayato Hayashi
- Research & Development Group, Technical Department, Atom Medical Corporation, Saitama, Saitama, Japan
| | - Takashi Mine
- Department of Comprehensive Community Care Systems, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Clinical Oncology, Nagasaki Harbor Medical Center, Nagasaki, Nagasaki, Japan
| | - Tatsuki Ichikawa
- Department of Comprehensive Community Care Systems, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Gastroenterology, Nagasaki Harbor Medical Center, Nagasaki, Nagasaki, Japan
| | - Yasuhiro Nagata
- Department of Comprehensive Community Care Systems, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Community Medicine, Nagasaki University School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Leading Medical Research Core Unit, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| |
Collapse
|
7
|
Thapa D, Welch R, Dabas RP, Salimi M, Tavakolian P, Sivagurunathan K, Ngai K, Huang B, Finer Y, Abrams S, Mandelis A, Tabatabaei N. Comparison of Long-Wave and Mid-Wave Infrared Imaging Modalities for Photothermal Coherence Tomography of Human Teeth. IEEE Trans Biomed Eng 2022; 69:2755-2766. [PMID: 35196221 DOI: 10.1109/tbme.2022.3153209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The ability to detect dental caries at early stages lies at the heart of minimal intervention dentistry, enabling the curing or arresting of carious lesions before they advance to the cavity stage. Enhanced truncated-correlation photothermal coherence tomography (eTC-PCT) using mid-wave infrared (MWIR) cameras has recently been shown to offer tomographic visualization of early caries. The tomographic slicing ability of such systems, however, is believed to be limited by direct radiative thermal emission through the translucent dental enamel in the 3-5 m MWIR spectral range. Such radiative emissions can dominate the delayed conductive thermal contributions needed for tomographic reconstruction of internal dental defects. It has been hypothesized that long-wave infrared (LWIR) eTC-PCT systems may offer better tomographic performance by taking advantage of the intrinsic attenuation of direct radiative emission by dental enamel in the LWIR spectral range, enabling more effective delayed conductive thermal contributions from subsurface caries. More than an order of magnitude lower cost of the system is another key attribute of LWIR eTC-PCT which can open the door for downstream translation of the technology to clinics. In this report, we offer a systematic comparison of the performance/effectiveness of caries detection with LWIR and MWIR eTC-PCT systems for detecting natural caries, bacterial caries, and artificially demineralized enamel surfaces. Our results suggest that the low-cost LWIR based eTC-PCT system provides 3D visualization and 2D slice-by-slice images of early caries and internal micro-cracks similar to those obtained from the more expensive MWIR-based eTC-PCT system, albeit with ~1.3dB lower signal-to-noise ratio.
Collapse
|
8
|
Wang Y, Zhang T, Xu Y, Chen R, Qu N, Zhang B, Xia C. Suppressing phosphoinositide-specific phospholipases Cγ1 promotes mineralization of osteoarthritic subchondral bone osteoblasts via increasing autophagy, thereby ameliorating articular cartilage degeneration. Bone 2022; 154:116262. [PMID: 34813965 DOI: 10.1016/j.bone.2021.116262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 10/11/2021] [Accepted: 11/16/2021] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Phosphoinositide-specific phospholipases C-γ1 (PLC-γ1) signaling has been shown to modulate osteoarthritis (OA) chondrocyte metabolism. However, the role of PLC-γ1 in OA osteoblasts remains unclear. Herein, whether and how PLC-γ1 was involved in mineralization in OA subchondral bone osteoblasts were investigated. METHODS Primary non-OA and OA osteoblasts of human and rat isolated from the subchondral bone or the calvaria were cultured in vitro, as well as mouse pre-osteoblastic cell line MC3T3-E1 cells. Rat knee OA model was induced by anterior cruciate ligament transection (ACLT), in which bone canal was carried out from the surface of lateral epicondyle of femur using micro-electric drill. Morphological characteristics of subchondral bone structure and articular cartilage were assessed using CT, micro-CT, and Safranin O/Fast green staining, respectively. Mineralization was measured by alizarin red staining. The expression and production of genes involved in osteoblastic phenotype and mineralization were evaluated by qPCR, western blotting, and immunohistochemistry assays, respectively. The inhibitions were performed using inhibitors and ShRNAs. RESULTS The decreased relative bone density and thickness in the early stage of OA and the increased one in the late stage of OA were observed in subchondral bone of ACLT-rat model. Decreased ALP and OCN levels and absorbance values of ARS content were observed in in vitro osteoblasts isolated from 2 w post-ACLT rat model, as well as IL-1β-treated (for maintaining and mimicking inflammatory status) human OA and rat osteoblasts. Decreased Atg7 level and LC3BII/I ratio in combination with an increase in the P62 level, was concomitant with decreased ALP and OCN mRNA levels and absorbance values of ARS content in OA or IL-1β-treated osteoblasts. Specific inhibition of PLC-γ1 by ShRNAs or inhibitor (U73122) elevated ALP and OCN mRNA levels and absorbance values of ARS content accompanied with increased Atg7 level and LC3BII/I ratio in combination with a decrease in the P62 level in OA osteoblasts. Furthermore, the promoting effect of PLC-γ1 inhibition on ALP and OCN mRNA levels and absorbance values of ARS content was reversed by endoplasmic reticulum (ER) stress activator HA15, as well as autophagic inhibitors CQ and 3MA. Injection with PLC-γ1 inhibitor U73122 from the surface of lateral epicondyle of femur reduced aberrant subchondral bone formation and attenuated articular cartilage degeneration in ACLT-rat. CONCLUSION Aberrant changes of OA subchondral bone structure were concomitant with altered osteoblastic phenotype and mineralization. Impaired autophagy contributed to decreased osteoblastic mineralization in the early stage of OA. PLC-γ1 inhibition promoted osteoblastic mineralization through increasing autophagy in OA osteoblasts, which was partially attributed to suppression of ER stress. Targeting PLC-γ1 in subchondral bone osteoblasts could be more efficacious for OA therapy through treating the bone and cartilage at the same time. In summary, we hypothesize that suppressing PLCγ1 promotes mineralization of osteoarthritic subchondral bone osteoblasts via increasing autophagy, thereby ameliorating articular cartilage degeneration.
Collapse
Affiliation(s)
- Yue Wang
- Bone & Joint Research Institute, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Tongen Zhang
- Bone & Joint Research Institute, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Yang Xu
- Bone & Joint Research Institute, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Rui Chen
- School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Ning Qu
- School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Bing Zhang
- School of Medicine, Xiamen University, Xiamen, Fujian, China.
| | - Chun Xia
- Bone & Joint Research Institute, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China.
| |
Collapse
|
9
|
Fu H, Chen R, Wang Y, Xu Y, Xia C, Zhang B. Reticulocalbin 1 is required for proliferation and migration of non-small cell lung cancer cells regulated by osteoblast-conditioned medium. J Cell Mol Med 2021; 25:11198-11211. [PMID: 34747128 PMCID: PMC8650041 DOI: 10.1111/jcmm.17040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 10/16/2021] [Accepted: 10/24/2021] [Indexed: 02/06/2023] Open
Abstract
Reticulocalbin1 (RCN1) is implicated in tumorigenesis and tumour progression. However, whether RCN1‐mediated bone metastasis of non‐small cell lung cancer (NSCLC) cells was elusive. Here, we assessed the effect of osteoblast‐conditioned medium (CM) on proliferation and migration of NSCLC cell line, NCI‐H1299 and NCI‐H460 cells, and identified the soluble mediators in CMs from osteoblasts and NSCLC cells using MTT, Clonogenicity, Transwell, wound healing, RT‐PCR, and Western blotting assays, and LC‐MS/MS analysis, respectively. Furthermore, the role of RCN1 was investigated in NSCLC cells cultured with or without osteoblast‐CM. Tumour growth and bone resorption were measured in a nude mouse model bearing NCI‐H1299 cells transduced with shRNA/RCN1 vector using in vivo imaging technique and micro‐CT. The results showed that RCN1 with a higher abundance in osteoblast‐CM, which was present in extracellular vesicles (EVs), enhanced RCN1 expression in NSCLC cells. Osteoblast‐CM partially offset the inhibitory effect of RCN1 depletion on proliferation and migration of NSCLC cells. RCN1 depletion‐induced endoplasmic reticulum (ER) stress caused by increasing GRP78, CHOP, IRE1α, p‐IRE1α, p‐PERK and p‐JNK, which was positively regulated by self‐induced autophagy, contributed to suppression of proliferation and migration in NCI‐H1299 cells. Therefore, osteoblasts produced RCN1 to transfer into NSCLC cells partially through EVs, facilitating proliferation and migration of NSCLC cells via blocking ER stress. RCN1 could be required for proliferation and migration of NSCLC cells regulated by osteoblast‐CM.
Collapse
Affiliation(s)
- Haijing Fu
- Cancer Research Center, School of Medicine, Xiamen University, Fujian, China
| | - Rui Chen
- Cancer Research Center, School of Medicine, Xiamen University, Fujian, China
| | - Yue Wang
- Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Yang Xu
- Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Chun Xia
- Zhongshan Hospital, Xiamen University, Xiamen, Fujian, China
| | - Bing Zhang
- Cancer Research Center, School of Medicine, Xiamen University, Fujian, China
| |
Collapse
|
10
|
Thapa D, Samadi N, Tabatabaei N. Handheld Thermo-Photonic Device for Rapid, Low-Cost, and On-Site Detection and Quantification of Anti-SARS-CoV-2 Antibody. IEEE SENSORS JOURNAL 2021; 21:18504-18511. [PMID: 35581990 PMCID: PMC8864951 DOI: 10.1109/jsen.2021.3089016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/09/2021] [Accepted: 06/09/2021] [Indexed: 06/15/2023]
Abstract
With the emergence of vaccines and antibody therapeutics, rapid and scalable platforms are needed to quantify the antibody response of individuals. Lateral flow immunoassay (LFA) based test strips provide a rapid, low-cost, and point-of-care approach to antibody testing against the SARS-CoV-2 virus. These convenient and scalable tests, however, are qualitative in nature and cannot quantify the immune response of the infected and/or vaccinated individuals. This study reports on the development of a rapid, low cost and portable thermo-photonic device that enables sensitive detection and quantification of antibody levels using commercially available COVID-19 Antibody LFAs. Unlike conventional LFA readers, the developed technology is based on sensing the infrared thermal radiation of tag gold nanoparticles following laser excitation (aka photothermal response). Our proof-of-concept results with humanized monoclonal anti-SARS-CoV-2 Spike receptor-binding domain (RBD) IgG demonstrate that the thermo-photonic technology can detect and quantify antibody concentrations within the clinically relevant range and with a limit of detection of [Formula: see text]/ml. The reader in conjunction with antibody LFAs offers a low-cost, portable, and scalable solution for assessment of the degree of immunity in populations, quality control of convalescent plasma donations for antibody therapeutics, and monitoring the immune response of infected individuals and vaccine recipients.
Collapse
Affiliation(s)
- Damber Thapa
- Department of Mechanical EngineeringYork UniversityTorontoONM3J 1P3Canada
| | - Nakisa Samadi
- Department of Mechanical EngineeringYork UniversityTorontoONM3J 1P3Canada
| | - Nima Tabatabaei
- Department of Mechanical EngineeringYork UniversityTorontoONM3J 1P3Canada
| |
Collapse
|
11
|
Di Nardo F, Chiarello M, Cavalera S, Baggiani C, Anfossi L. Ten Years of Lateral Flow Immunoassay Technique Applications: Trends, Challenges and Future Perspectives. SENSORS (BASEL, SWITZERLAND) 2021; 21:5185. [PMID: 34372422 PMCID: PMC8348896 DOI: 10.3390/s21155185] [Citation(s) in RCA: 160] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 12/22/2022]
Abstract
The Lateral Flow Immunoassay (LFIA) is by far one of the most successful analytical platforms to perform the on-site detection of target substances. LFIA can be considered as a sort of lab-in-a-hand and, together with other point-of-need tests, has represented a paradigm shift from sample-to-lab to lab-to-sample aiming to improve decision making and turnaround time. The features of LFIAs made them a very attractive tool in clinical diagnostic where they can improve patient care by enabling more prompt diagnosis and treatment decisions. The rapidity, simplicity, relative cost-effectiveness, and the possibility to be used by nonskilled personnel contributed to the wide acceptance of LFIAs. As a consequence, from the detection of molecules, organisms, and (bio)markers for clinical purposes, the LFIA application has been rapidly extended to other fields, including food and feed safety, veterinary medicine, environmental control, and many others. This review aims to provide readers with a 10-years overview of applications, outlining the trends for the main application fields and the relative compounded annual growth rates. Moreover, future perspectives and challenges are discussed.
Collapse
Affiliation(s)
- Fabio Di Nardo
- Department of Chemistry, University of Torino, 10125 Torino, Italy; (M.C.); (S.C.); (C.B.); (L.A.)
| | | | | | | | | |
Collapse
|
12
|
Alisi M, Al-Ajlouni J, Ibsais MK, Obeid Z, Hammad Y, Alelaumi A, Al-Saber M, Abuasbeh O, Abuhajleh F. Thermographic Assessment of Reperfusion Profile Following Using a Tourniquet in Total Knee Arthroplasty: A Prospective Observational Study. MEDICAL DEVICES-EVIDENCE AND RESEARCH 2021; 14:133-139. [PMID: 34007224 PMCID: PMC8122004 DOI: 10.2147/mder.s300726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 03/15/2021] [Indexed: 11/23/2022] Open
Abstract
Background Infrared thermal imaging is a non-invasive technique capable of detecting changes in temperature that could ultimately signify changes in blood supply. Flir One is a smartphone-based thermal camera, working by a downloadable application, capable of detecting the limb temperature through a non-contact method using infrared thermography technology. Using the Flir One camera, we will assess the lower limb reperfusion profile following the tourniquet release post total knee arthroplasty (TKA). Methods A prospective study included 46 patients who underwent primary TKA. We used the (Flir One Gen 3) thermographic camera to capture images at ankle joint preoperatively, and at 1, 10, and 20 minutes post tourniquet release on operation side. The contralateral ankle stands as control. Results The mean preoperative temperature (in Celsius) of ankle control side and operated side were 33.03 (SD=1.65) and 33.26 (SD=1.42), respectively. The mean ankle temperature on operation side was 19.73 (SD=2.85), 30.49 (SD=2), and 32.43 (SD=1.31) at 1, 10, and 20 minutes post tourniquet release, respectively, while the control side showed a mean temperature of 32.85 (SD=1.42), 32.84 (SD=0.91), and 33.15 (SD=0.95) at the same time intervals. There was a significant statistical difference between both ankle temperatures at 1 and 10 minutes (P=0.00 for each time). At 20 minutes, 37 ankles (80.4%) at operation side reached a temperature level similar but below the level of control side; however, the difference was not significant (P=0.692). Conclusion Infrared thermography using the smartphone-connected camera is a simple, non-invasive, feasible, and reliable technology. It provides an objective measure to assess the perfusion status of the limbs. In TKA, the distal limb will reach full reperfusion status after approximately 20 minutes of tourniquet release.
Collapse
Affiliation(s)
- Mohammed Alisi
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Jihad Al-Ajlouni
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | | | - Zeinab Obeid
- School of Medicine, The University of Jordan, Amman, Jordan
| | - Yazan Hammad
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Ahmad Alelaumi
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Munther Al-Saber
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Odai Abuasbeh
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| | - Feras Abuhajleh
- Department of Special Surgery, Division of Orthopaedics, School of Medicine, The University of Jordan, Amman, Jordan
| |
Collapse
|
13
|
Roointan S, Tavakolian P, Sivagurunathan KS, Mandelis A, Abrams SH. Detection and monitoring of early dental caries and erosion using three-dimensional enhanced truncated-correlation photothermal coherence tomography imaging. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-210053R. [PMID: 33928770 PMCID: PMC8084349 DOI: 10.1117/1.jbo.26.4.046004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 04/16/2021] [Indexed: 05/08/2023]
Abstract
SIGNIFICANCE Dental caries is the most common oral disease, with significant effects on healthcare systems and quality of life. Developing diagnostic methods for early caries detection is key to reducing this burden and enabling non-invasive treatment as opposed to the drill-and-fill approach. AIM The application of a thermophotonic-based 3D imaging modality [enhanced truncated-correlation photothermal coherence tomography (eTC-PCT)] to early dental caries is investigated. To this end, the detection threshold, sensitivity, and 3D lesion reconstruction capability of eTC-PCT in imaging artificially generated caries and surface erosion are evaluated. APPROACH eTC-PCT employs a diode laser with pulsed excitation, a mid-IR camera, and an in-house developed image reconstruction algorithm to produce depth-resolved 2D images and 3D reconstructions. Starting with healthy teeth, dental caries and surface erosion are simulated in vitro through application of specific demineralizing/eroding acidic solutions. RESULTS eTC-PCT can detect artificial caries as early as 2 days after onset of artificial demineralization and after 45 s of surface erosion, with a laser power equivalent to 64% of maximum permissible exposure. In both cases, the lesion is not visible to the eye and undetected by x-rays. eTC-PCT is capable of monitoring lesion progression in 2-day increments and generating 3D tomographic reconstructions of the advancing lesion. CONCLUSIONS eTC-PCT shows great potential for further development as a dental imaging modality combining low detection threshold, high sensitivity to lesion progression, 3D reconstruction capability, and lack of ionizing radiation. These features enable early diagnosis and frequent monitoring, making eTC-PCT a promising technology for facilitating preventive dentistry.
Collapse
Affiliation(s)
- Sohrab Roointan
- University of Toronto, Center for Advanced Diffusion-Wave and Photoacoustic Technologies, Department of Mechanical and Industrial Engineering, Toronto, Ontario, Canada
- University of Toronto, Institute of Biomedical Engineering, Toronto, Ontario, Canada
| | - Pantea Tavakolian
- University of Toronto, Center for Advanced Diffusion-Wave and Photoacoustic Technologies, Department of Mechanical and Industrial Engineering, Toronto, Ontario, Canada
- University of Toronto, Institute for Advanced Non-Destructive and Non-Invasive Diagnostic Technologies, Toronto, Ontario, Canada
| | - Koneswaran S. Sivagurunathan
- University of Toronto, Center for Advanced Diffusion-Wave and Photoacoustic Technologies, Department of Mechanical and Industrial Engineering, Toronto, Ontario, Canada
- University of Toronto, Institute of Biomedical Engineering, Toronto, Ontario, Canada
- University of Toronto, Institute for Advanced Non-Destructive and Non-Invasive Diagnostic Technologies, Toronto, Ontario, Canada
- Quantum Dental Technologies, Toronto, Ontario, Canada
| | - Andreas Mandelis
- University of Toronto, Center for Advanced Diffusion-Wave and Photoacoustic Technologies, Department of Mechanical and Industrial Engineering, Toronto, Ontario, Canada
- University of Toronto, Institute of Biomedical Engineering, Toronto, Ontario, Canada
- University of Toronto, Institute for Advanced Non-Destructive and Non-Invasive Diagnostic Technologies, Toronto, Ontario, Canada
- Quantum Dental Technologies, Toronto, Ontario, Canada
- Address all correspondence to Andreas Mandelis,
| | | |
Collapse
|
14
|
Chen X, Wang Y, Chen R, Qu N, Zhang B, Xia C. Suppressing PLCγ1 enhances osteogenic and chondrogenic potential of BMSCs. Biochem Biophys Res Commun 2020; 532:292-299. [PMID: 32868075 DOI: 10.1016/j.bbrc.2020.08.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 08/14/2020] [Indexed: 11/28/2022]
Abstract
Phosphatidylcholine-specific phospholipase Cγ1 (PLCγ1) is involved in regulating cell metabolism. However, little is known how PLCγ1 directs BMSC differentiation. Here, we investigated the role of PLCγ1 in rat BMSC differentiation into osteoblasts and chondrocytes. The results of Alizarin red and Alcian blue staining showed that PLCγ1 inhibitor U73122 significantly enhanced the mineralization capacity and proteoglycan deposition of BMSCs. The results of qPCR technique and Western blot analysis showed that long-term treatment of U73122 enhanced COL1A1 and OPG mRNA levels and Collagen 1A1, BMP2, and p-Smad1/5/9 protein levels and that short-term treatment of U73122 enhanced COL2A1 and SOX9 mRNA levels and Collagen 2, SOX9, Aggrecan, TGF-β3, and p-Smad2/3 protein levels. Decreased p-mTOR and p-P38 contributed to enhanced osteogenic potentials of BMSCs and increased p-P38 contributed to enhanced chondrogenic potentials of BMSCs. The scaffold transplantation with U73122+BMSC was more efficacious than BMSC alone for osteochondral defect repair in a rat model. Therefore, suppressing PLCγ1 could improve the capacity to effectively use BMSCs for cell therapy of osteochondral defect.
Collapse
Affiliation(s)
- Xiaolei Chen
- Bone & Joint Research Institute, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, 361004, China
| | - Yue Wang
- Bone & Joint Research Institute, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, 361004, China
| | - Ri Chen
- School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Ning Qu
- School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Bing Zhang
- School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China.
| | - Chun Xia
- Bone & Joint Research Institute, Zhongshan Hospital, Xiamen University, Xiamen, Fujian, 361004, China.
| |
Collapse
|