1
|
Yin Y, Sun J, Jiang T, Zhu L, Gu W, Wang S, Song L, Wang C, Zhang Q. Combined Doxorubicin Mesoporous Carbon Nanospheres for Effective Tumor Lymphatic Metastasis by Multi-Modal Chemo-Photothermal Treatment in vivo. Int J Nanomedicine 2023; 18:4589-4600. [PMID: 37588626 PMCID: PMC10426433 DOI: 10.2147/ijn.s418766] [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: 04/26/2023] [Accepted: 08/06/2023] [Indexed: 08/18/2023] Open
Abstract
Introduction Sentinel lymph node (SLN) is the first regional lymph node where tumor cells metastasize, and its identification and treatment are of great significance for the prevention of tumor metastasis. However, the current clinical modalities for identification and treatment of SLN are still far from satisfactory owing to their high cost, invasiveness and low accuracy. We aim to design a novel nanomedicine system for SLN imaging and treatment with high efficacy. Methods We designed and prepared hollow mesoporous carbon spheres (HMCS) and loaded with the chemotherapeutic drug doxorubicin (DOX), which is then modified with polyvinyl pyrrolidone (PVP) to obtain nanomedicine: HMCS-PVP-DOX. Results HMCS-PVP with a size of about 150 nm could retain in the lymph nodes for a long time and stain the lymph nodes, which could be easily observed by the naked eye. At the same time, HMCS-PVP exhibited excellent photoacoustic and photothermal imaging capabilities, realizing multimodal imaging to locate lymph nodes precisely. Due to its high specific surface area, HMCS could be largely loaded with the chemotherapeutic drug doxorubicin (DOX). HMCS-PVP-DOX displayed highly efficient synergistic chemotherapy-photothermal therapy for lymphatic metastases in both cellular and animal experiments due to its significant photothermal effect under 1064 nm laser irradiation. HMCS-PVP-DOX also displayed great stability and biosafety. Discussion Multifunctional nanomedicine HMCS-PVP-DOX is expected to provide a novel paradigm for designing nanomedicine to the diagnosis and treatment of lymphatic metastases because of its good stability and safety.
Collapse
Affiliation(s)
- Yipengchen Yin
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, People’s Republic of China
| | - Jiaxin Sun
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, People’s Republic of China
| | - Tiaoyan Jiang
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, People’s Republic of China
| | - Li Zhu
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, People’s Republic of China
| | - Wenchao Gu
- Department of Diagnostic and Interventional Radiology, University of Tsukuba, Ibaraki, 305-8575, Japan
| | - Sheng Wang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, People’s Republic of China
| | - Le Song
- Department of Gerontology, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China
| | - Changchun Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, People’s Republic of China
| | - Qin Zhang
- Department of Radiation Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, People’s Republic of China
| |
Collapse
|
2
|
Bindini E, Ramirez MDLA, Rios X, Cossío U, Simó C, Gomez-Vallejo V, Soler-Illia G, Llop J, Moya SE. In Vivo Tracking of the Degradation of Mesoporous Silica through 89 Zr Radio-Labeled Core-Shell Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2101519. [PMID: 34145769 DOI: 10.1002/smll.202101519] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/02/2021] [Indexed: 06/12/2023]
Abstract
While mesoporous silica nanoparticles (MSNs) are extensively studied as high-potential drug delivery platforms, the successful clinical translation of these nanocarriers strongly depends on their biodistribution, biodegradation, and elimination patterns in vivo. Here, a novel method is reported to follow the in vivo degradation of MSNs by tracking a radioactive label embedded in the silica structure. Core-shell silica nanoparticles (NPs) with a dense core and a mesoporous shell are labeled with low quantities of the positron emitter 89 Zr, either in the dense core or in the mesoporous shell. In vivo positron emission tomography imaging and ex vivo organ measurements reveal a remarkable difference in the 89 Zr biodistribution between the shell-labeled and the core-labeled NPs. Release of the radiotracer from shell-labeled NPs is used as a probe of the extent of silica dissolution, and a prompt release of the radioisotope is observed, with partial excretion already in the first 2 h post injection, and a slower accumulation in bones over time. On the other hand, when 89 Zr is embedded in the nanoparticle core, the biodistribution remains largely unchanged during the first 6 h. These findings indicate that MSNs have fast, hour-scale, degradation kinetics in vivo.
Collapse
Affiliation(s)
- Elisa Bindini
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Maria de Los Angeles Ramirez
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
- Instituto de Nanosistemas, UNSAM, CONICET, Avenida 25 de Mayo 1021, San Martín, Buenos Aires, 1650, Argentina
| | - Xabier Rios
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Unai Cossío
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Cristina Simó
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Vanessa Gomez-Vallejo
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| | - Galo Soler-Illia
- Instituto de Nanosistemas, UNSAM, CONICET, Avenida 25 de Mayo 1021, San Martín, Buenos Aires, 1650, Argentina
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
- Centro de Investigación Biomédica en Red - Enfermedades Respiratorias (CIBERES), Av. Monforte de Lemos, 3-5, Madrid, 28029, Spain
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramón 182, San Sebastián, Guipúzcoa, 20014, Spain
| |
Collapse
|
3
|
Directed Silica Co-Deposition by Highly Oxidized Silver: Enhanced Stability and Versatility of Silver Oxynitrate. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9235236] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Novel silver compounds in higher oxidation states, Ag (II) and Ag (III), have emerged as desirable alternatives to existing forms of antimicrobial silver compounds. Offering enhanced efficacy without sacrificing biocompatibility. Unique physiochemical characteristics associated with higher oxidation state silver confer desirable therapeutic traits. However, these same characteristics create challenges in terms of long-term stability and chemical compatibility with conventional biomedical materials. Core-shell methodologies, utilizing silica as a mesoporous or amorphous shell, have been adopted to enhance the stability of reactive active ingredients or cores. These methodologies commonly utilize controlled condensation of silicic acids in non-aqueous media by way of hydrolyzing alkyl silicates: the Stöber process or modified processes thereof. However, these strategies are not conducive to cores of higher oxidation state silver wherein hydroxyl organic precursors and by-products are incompatible with strong oxidizing agents. Addressing these challenges, we present a strategy herein for the preparation of a self-directed silver oxynitrate-silica, Ag7NO11:SiO2, framework. The method described utilizes pH gradients generated from the oxidation reaction of soluble silver, Ag (I), with a strong oxidizing agent/alkaline silicate media to facilitate spatial control over the protonation and subsequent condensation of silicic acid from aqueous solution. The resulting Ag7NO11:SiO2 framework confers enhanced long term and thermal stability to silver oxynitrate without impairing aqueous degradation profiles or subsequent antimicrobial and antibiofilm activities.
Collapse
|
4
|
Wei R, Jiang G, Lv M, Tan S, Wang X, Zhou Y, Cheng T, Gao X, Chen X, Wang W, Zou C, Li F, Ma X, Hu J, Ma D, Luo D, Xi L. TMTP1-modified Indocyanine Green-loaded Polymeric Micelles for Targeted Imaging of Cervical Cancer and Metastasis Sentinel Lymph Node in vivo. Theranostics 2019; 9:7325-7344. [PMID: 31695771 PMCID: PMC6831285 DOI: 10.7150/thno.35346] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 08/01/2019] [Indexed: 12/12/2022] Open
Abstract
Metastasis is one of the most threatening aspects of cervical cancer. We developed a method to intraoperatively map the primary tumor, metastasis and metastatic sentinel lymph nodes (SLNs), providing real-time intraoperative guidance in cervical cancer. Methods: TMTP1, a tumor metastasis targeting peptide, was employed to modify the indocyanine green (ICG)-loaded poly (ethylene glycol)- poly (lactic-co-glycolic acid) (PEG-PLGA) micelles. The cervical cancer subcutaneous tumor model and lung metastasis model were established to determine the active targeting of ICG-loaded TMTP1-PEG-PLGA micelles (ITM) for the primary tumor and occult metastasis of cervical cancer. Human cervical cancer HeLa cells engineered by firefly luciferase were injected into the right hocks of BALB/c nude mice to develop the SLN metastasis model. The ITM and control ICG-loaded PEG-PLGA micelles (IM) were injected into the right hind footpads in the SLN metastasis model, and the migration and retention of micelles were recorded under near-infrared fluorescence. K14-HPV16 transgenic mice were also used to detect the image capability of ITM to target cancerous lesions. Results: ITM could actively target imaging of the primary tumor and cervical cancer metastasis. ITM quickly diffused from the injection site to SLNs along lymphatic capillaries and remained in the SLNs for 12 h. Moreover, ITM specifically accumulated in the tumor metastatic SLNs (T-SLNs), which could be successfully distinguished from normal SLNs (N-SLNs). Conclusion: ITM could achieve active targeting of the primary tumor, metastasis and T-SLNs, providing precise and real-time intraoperative guidance for cervical cancer.
Collapse
|
5
|
Bhandari A, Xia E, Wang Y, Sindan N, Kc R, Guan Y, Lin YL, Wang X, Zhang X, Wang O. Impact of sentinel lymph node biopsy in newly diagnosed invasive breast cancer patients with suspicious node: a comparative accuracy survey of fine-needle aspiration biopsy versus core-needle biopsy. Am J Transl Res 2018; 10:1860-1873. [PMID: 30018726 PMCID: PMC6038083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
Comparing diagnostic accuracy study between ultrasonography (US) guided fine-needle aspiration biopsy (FNAB) and core-needle biopsy (CNB) of the Sentinel lymph nodes (SLNs) in newly diagnosed invasive breast cancer patients. We selected 289 newly diagnosed invasive breast cancer patients from June 2015 to July 2017. Ultrasound (US) guided fine-needle aspiration cytology (FNA) and core-needle biopsy (CNB) was performed to identify patients with suspicious sentinel lymph node (SLN). Patients with a cortical thickness > 2 mm or atypical morphological characteristics were recommended FNA and CNB. Axillary lymph node dissection (ALND) was applied to patients with biopsy-proven metastasis, and sentinel lymph node biopsy (SLNB) was applied to FNA or CNB negative patients. ALND was also performed when SNB is positive. Out of 289 patients, only 131 patients met final study criteria. Lymph node status was evaluated by FNA, CNB, SLND, and ALND. Among 131 patients, 45 were deemed positive for metastasis and 86 were determined to be negative with CNB, whereas 38 were deemed positive for metastasis and 93 were determined to be negative by using FNAB. CNB was used to correctly identify seven axillae as positive for metastasis that were deemed negative by using FNAB. There were no positive FNAB results in axillae that were negative for metastasis with CNB. All patients underwent SLNB and those with biopsy-proved axillary metastases were assigned directly to ALND as the primary staging procedure. The final histopathologic assessment indicated that 50 (38.2%) of the 131 axillae studied had axillary LN metastases. Axillary US-guided CNB was used to correctly identify 45 (90.0%) of the 50 LN-positive axillae, whereas axillary US-guided FNAB was used to correctly identify 38 (76.0%, P < 0. 001). There were no false-positive results. CNB netted 5 false-negative results, and FNAB resulted in 12. There was significantly different accuracy between different diagnostic tools. In our study, we demonstrated that CNB is a more reliable approach than FNA for the preoperative diagnosis of SLN metastasis.
Collapse
Affiliation(s)
- Adheesh Bhandari
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| | - Erjie Xia
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| | - Yinghao Wang
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| | - Namita Sindan
- Department of Reproductive Health Center, Second Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| | - Ranjan Kc
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland ClinicOH 44120, USA
| | - Yaoyao Guan
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| | - Yueh-Lung Lin
- Mathematical Sciences, University of NottinghamNingbo 325000, Zhejiang, PR China
| | - Xiaoshang Wang
- School of International Studies, Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| | - Xiaohua Zhang
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| | - Ouchen Wang
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000, Zhejiang, PR China
| |
Collapse
|
6
|
Preparation and Evaluation of Combined Detection of Norovirus GI and GII: An Innovative Fluorescent Particles Test Strip. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7862467. [PMID: 29682555 PMCID: PMC5845527 DOI: 10.1155/2018/7862467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/15/2017] [Accepted: 01/29/2018] [Indexed: 12/04/2022]
Abstract
This study was designed to prepare and evaluate the sensitivity and specificity of a Norovirus GI and GII fluorescent particles combined detection test strip method. Using selected chromatographic materials and antibodies specific to Norovirus GI and GII, the Norovirus GI and GII fluorescent particles combined detection test strip (tested method) was prepared as a conventional double antibody sandwich. The samples assayed included cultured rotavirus and 465 specimens from patients with symptoms of gastrointestinal infection. Norovirus was detected using the tested method and a reference method (CerTest Norovirus GI-GII test card). The results indicated that the sensitivity of the tested method was 4 (for GI detection) or 8 times (for GII detection) greater than the reference method. Neither of the two methods cross-reacted with rotavirus and so on. For specimens, 29 were found to be negative by the reference method and positive by the tested method, and 8 were found to be negative by the tested method and positive by the reference method. Furthermore, a retesting of these samples by qPCR showed that 28 of the 29 were positive, and 3 of the 8 were positive. In summary, the Norovirus GI and GII fluorescent particles combined detection test strip was successfully prepared and had good detection performance.
Collapse
|
7
|
Jiang N, Shi L, Lin J, Zhang L, Peng Y, Sheng H, Wu P, Pan Q. Comparison of two different combined test strips with fluorescent microspheres or colored microspheres as tracers for rotavirus and adenovirus detection. Virol J 2018. [PMID: 29534739 PMCID: PMC5851252 DOI: 10.1186/s12985-018-0951-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Rotavirus (RV) and enteric adenovirus (AdV) mainly cause infantile infectious gastroenteritis. Several separate test methods for the detection of RV or AdV are currently available, but few tests are able to simultaneously detect both RV and AdV viruses, especially in primary medical institutions. Methods The present study was mainly designed to compare the performance of two combined test strips for the detection of RV and AdV: a rotavirus–adenovirus strip with fluorescent microspheres for tracers (FMT); and the CerTest rotavirus–adenovirus blister strip with colored microspheres for tracers (CMT). To test the strips cultures of RV, AdV and from other enteric pathogens were used, in addition to 350 stool specimens from 45 symptomatic patients with gastrointestinal infections. Results Detection thresholds for RV and AdV cultures using serial dilutions showed that the sensitivity of FMT was significantly higher than that of CMT (both P < 0.05). Specificity evaluation demonstrated that with culture mixtures of Coxsackie (A16), ECHO (type30), and entero- (EV71) viruses there was no detection of cross reaction using the two test strips, i.e., all the results were negative. With regard to the detection of RV in 350 clinical specimens, the total coincidence rate was 92.9%, the positive coincidence rate was 98.2%, and the negative coincidence rate was 90.8%. With regard to AdV detection, the total coincidence rate was 95.4%, the positive coincidence rate was 95.2%, and the negative coincidence rate was 95.5%. Conclusions FMT performed better than CMT with regard to the combined detection of RV and AdV.
Collapse
Affiliation(s)
- Na Jiang
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lei Shi
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jieping Lin
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Lifang Zhang
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yanxia Peng
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Huiying Sheng
- Division of Endocrinology and Metabolism, Guangzhou Women and Children's Medical Centre, Guangzhou, Guangdong, China
| | - Ping Wu
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
| | - Qingjun Pan
- Clinical Research Center, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
| |
Collapse
|
8
|
Mettra B, Appaix F, Olesiak-Banska J, Le Bahers T, Leung A, Matczyszyn K, Samoc M, van der Sanden B, Monnereau C, Andraud C. A Fluorescent Polymer Probe with High Selectivity toward Vascular Endothelial Cells for and beyond Noninvasive Two-Photon Intravital Imaging of Brain Vasculature. ACS APPLIED MATERIALS & INTERFACES 2016; 8:17047-59. [PMID: 27267494 DOI: 10.1021/acsami.6b02936] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A chromophore-engineering strategy that relies on the introduction of a ground-state distortion in a quadrupolar chromophore was used to obtain a quasi-quadrupolar chromophore with red emission and large two-photon absorption (2PA) cross-section in polar solvents. This molecule was functionalized with water-solubilizing polymer chains. It constitutes not only a remarkable contrast agent for intravital two-photon microscopy of the functional cerebral vasculature in a minimally invasive configuration but presents intriguing endothelial staining ability that makes it a valuable probe for premortem histological staining.
Collapse
Affiliation(s)
- B Mettra
- Laboratoire de Chimie, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard, Université de Lyon , F69342, Lyon, France
| | - F Appaix
- Grenoble Institut des Neurosciences, GIN, Inserm, U1216, Univ Grenoble Alpes , F-38000 Grenoble, France
| | - J Olesiak-Banska
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Technology , Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - T Le Bahers
- Laboratoire de Chimie, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard, Université de Lyon , F69342, Lyon, France
| | - A Leung
- Laboratoire de Chimie, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard, Université de Lyon , F69342, Lyon, France
| | - K Matczyszyn
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Technology , Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - M Samoc
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Technology , Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - B van der Sanden
- CLINATEC, INSERM UA 01, Rue des Martyrs 17, 38054, Grenoble, France
| | - C Monnereau
- Laboratoire de Chimie, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard, Université de Lyon , F69342, Lyon, France
| | - C Andraud
- Laboratoire de Chimie, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard, Université de Lyon , F69342, Lyon, France
| |
Collapse
|
9
|
Li N, Wang X, Lin B, Zhu H, Liu C, Xu X, Zhang Y, Zhai S, OuYang T, Li J, Yang Z. Clinical Evaluation of 99mTc-Rituximab for Sentinel Lymph Node Mapping in Breast Cancer Patients. J Nucl Med 2016; 57:1214-20. [DOI: 10.2967/jnumed.115.160572] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 02/18/2016] [Indexed: 01/01/2023] Open
|
10
|
Zhou Z, Liu H, Chi X, Chen J, Wang L, Sun C, Chen Z, Gao J. A Protein-Corona-Free T(1)-T(2) Dual-Modal Contrast Agent for Accurate Imaging of Lymphatic Tumor Metastasis. ACS APPLIED MATERIALS & INTERFACES 2015; 7:28286-28293. [PMID: 26645884 DOI: 10.1021/acsami.5b08422] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Precise nodal staging is particularly important to guide the treatments and determine the prognosis for cancer patients. However, it is still challenging to noninvasively and precisely detect in-depth tumor metastasis in lymph nodes (LNs) because of the small size and high potential of obtaining pseudopositive results. Herein, we report the rational design of a T1-T2 dual-modal MRI contrast agent for accurate imaging of tumor metastasis in LNs using gadolinium-embedded iron oxide nanoplates (GdIOP). The GdIOP were modulated with suitable size in vivo through surface functionalization by zwitterionic dopamine sulfonate (ZDS) molecules. The efficient uptake of GdIOP@ZDS nanoparticles through drainage effect because of the presence of large amount of macrophages and dendritic cells generates both T1 and T2 contrasts in LNs. In contrast, the low uptake of protein-corona-free GdIOP@ZDS nanoparticles by melanoma B16 tumor cells promises pseudocontrast imaging of potential tumor metastasis in LNs. The combination of T1 and T2 imaging modalities allows self-confirmed detection of a metastatic tumor with about 1.2 mm in the minimal dimension in LNs, which is close to the detection limit of submilimeter level of MRI scans. This study provides an efficient and noninvasive strategy to detect tumor metastasis in LNs with greatly enhanced diagnostic accuracy.
Collapse
Affiliation(s)
- Zijian Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Hanyu Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Xiaoqin Chi
- Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Zhongshan Hospital, Xiamen University , Xiamen 361004, China
| | - Jiahe Chen
- Department of Electronic Science and Fujian Key Laboratory of Plasma and Magnetic Resonance, Xiamen University , Xiamen 361005, China
| | - Lirong Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Chengjie Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| | - Zhong Chen
- Department of Electronic Science and Fujian Key Laboratory of Plasma and Magnetic Resonance, Xiamen University , Xiamen 361005, China
| | - Jinhao Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China
| |
Collapse
|
11
|
Wu X, Lin Q, Chen G, Lu J, Zeng Y, Chen X, Yan J. Sentinel Lymph Node Detection Using Carbon Nanoparticles in Patients with Early Breast Cancer. PLoS One 2015; 10:e0135714. [PMID: 26296136 PMCID: PMC4546543 DOI: 10.1371/journal.pone.0135714] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 07/24/2015] [Indexed: 02/05/2023] Open
Abstract
PURPOSE Carbon nanoparticles have a strong affinity for the lymphatic system. The purpose of this study was to evaluate the feasibility of sentinel lymph node biopsy using carbon nanoparticles in early breast cancer and to optimize the application procedure. METHODS Firstly, we performed a pilot study to demonstrate the optimized condition using carbon nanoparticles for sentinel lymph nodes (SLNs) detection by investigating 36 clinically node negative breast cancer patients. In subsequent prospective study, 83 patients with clinically node negative breast cancer were included to evaluate SLNs using carbon nanoparticles. Another 83 SLNs were detected by using blue dye. SLNs detection parameters were compared between the methods. All patients irrespective of the SLNs status underwent axillary lymph node dissection for verification of axillary node status after the SLN biopsy. RESULTS In pilot study, a 1 ml carbon nanoparticles suspension used 10-15min before surgery was associated with the best detection rate. In subsequent prospective study, with carbon nanoparticles, the identification rate, accuracy, false negative rate was 100%, 96.4%, 11.1%, respectively. The identification rate and accuracy were 88% and 95.5% with 15.8% of false negative rate using blue dye technique. The use of carbon nanoparticles suspension showed significantly superior results in identification rate (p = 0.001) and reduced false-negative results compared with blue dye technique. CONCLUSION Our study demonstrated feasibility and accuracy of using carbon nanoparticles for SLNs mapping in breast cancer patients. Carbon nanoparticles are useful in SLNs detection in institutions without access to radioisotope.
Collapse
MESH Headings
- Adult
- Aged
- Axilla
- Breast Neoplasms/diagnosis
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Breast Neoplasms/surgery
- Carbon/administration & dosage
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Ductal, Breast/surgery
- Carcinoma, Lobular/diagnosis
- Carcinoma, Lobular/metabolism
- Carcinoma, Lobular/pathology
- Carcinoma, Lobular/surgery
- Early Diagnosis
- False Negative Reactions
- Female
- Humans
- Injections, Intradermal
- Lymph Nodes/metabolism
- Lymph Nodes/pathology
- Lymph Nodes/surgery
- Lymphatic Metastasis
- Methylene Blue/administration & dosage
- Middle Aged
- Nanoparticles/administration & dosage
- Neoplasm Staging
- Pilot Projects
- Prospective Studies
- Sentinel Lymph Node Biopsy
Collapse
Affiliation(s)
- Xiufeng Wu
- Department of Surgery, Fujian Provincial Tumor Hospital, Teaching Hospital of Fujian Medical University, Fuzhou 350014, Fujian, People’s Republic of China
| | - Qingzhong Lin
- Department of Surgery, Fujian Provincial Tumor Hospital, Teaching Hospital of Fujian Medical University, Fuzhou 350014, Fujian, People’s Republic of China
| | - Gang Chen
- Department of Pathology, Fujian Provincial Tumor Hospital, Teaching Hospital of Fujian Medical University, Fuzhou 350014, Fujian, People’s Republic of China
| | - Jianping Lu
- Department of Pathology, Fujian Provincial Tumor Hospital, Teaching Hospital of Fujian Medical University, Fuzhou 350014, Fujian, People’s Republic of China
| | - Yi Zeng
- Department of Surgery, Fujian Provincial Tumor Hospital, Teaching Hospital of Fujian Medical University, Fuzhou 350014, Fujian, People’s Republic of China
| | - Xia Chen
- Department of Surgery, Fujian Provincial Tumor Hospital, Teaching Hospital of Fujian Medical University, Fuzhou 350014, Fujian, People’s Republic of China
| | - Jun Yan
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, People’s Republic of China
| |
Collapse
|
12
|
Li J, Zhuang Z, Jiang B, Zhao P, Lin C. Advances and perspectives in nanoprobes for noninvasive lymph node mapping. Nanomedicine (Lond) 2015; 10:1019-36. [PMID: 25867863 DOI: 10.2217/nnm.14.201] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Sentinel lymph node (SLN) biopsy is now being well accepted as a practical approach to determine axillary lymph node status. For SLN biopsy, the mapping of SLN is an important procedure. However, blue dyes and radioactive colloids used for clinical SLN mapping are associated with a few issues such as adverse side effects and short retention time in SLN. In recent years, nanoscale probes for noninvasive SLN mapping have received attention due to their adaptable synthesis methods, adjustable optical properties and good biocompatibility. This review thoroughly summarizes the design of the nanoprobes and their properties in SLN mapping. The aim is to understand the status of nanomaterials for SLN mapping, challenging work and potential clinical translation in the future.
Collapse
Affiliation(s)
- Jiejing Li
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nanoscience, Tongji University School of Medicine, Tongji University, Shanghai, 200092, PR China
- Department of Breast Surgery, Shanghai First Maternity & Infant Hospital, Tongji University School of Medicine, Shanghai, 200040, PR China
| | - Zhigang Zhuang
- Department of Breast Surgery, Shanghai First Maternity & Infant Hospital, Tongji University School of Medicine, Shanghai, 200040, PR China
| | - Beiqi Jiang
- Department of Breast Surgery, Shanghai First Maternity & Infant Hospital, Tongji University School of Medicine, Shanghai, 200040, PR China
| | - Peng Zhao
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nanoscience, Tongji University School of Medicine, Tongji University, Shanghai, 200092, PR China
| | - Chao Lin
- Shanghai East Hospital, The Institute for Biomedical Engineering & Nanoscience, Tongji University School of Medicine, Tongji University, Shanghai, 200092, PR China
| |
Collapse
|
13
|
Kobayashi Y, Iwasaki T, Kageyama K, Ishikuro S, Yamasaki K, Yonezawa T, Takenoshita A. Fabrication of nitrogen-doped titanium oxide/silica core–shell particles and their electrical conductivity. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.05.073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
14
|
Shirshahi V, Soltani M. Solid silica nanoparticles: applications in molecular imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2014; 10:1-17. [PMID: 24996058 DOI: 10.1002/cmmi.1611] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 05/10/2014] [Accepted: 05/25/2014] [Indexed: 12/15/2022]
Abstract
Silica and silica-based nanoparticles have been widely used for therapeutic and diagnostic applications in cancer mainly through delivery of drugs, genes and contrast agents. Development of synthesis methods has provided the possibility of fabricating silica nanoparticles with different sizes in nanometer ranges as well as silica-based multimodal nanoparticles with many innovative properties and intriguing applications in biomedicine. The surface of silica particles facilitates different methods of surface modifications and allows conjugation of various biomolecules such as proteins and nucleic acids. In this review, different methods of fabrication of silica and silica-based nanoparticles, their surface modification and the application of these nanoparticles in molecular imaging are discussed. Overall, the aim of this review is to address the development of silica and silica-based multifunctional nanoparticles that are introduced mainly for molecular imaging applications using optical, magnetic (MRI), X-ray (computed tomography) and multimodal imaging techniques.
Collapse
Affiliation(s)
- Vahid Shirshahi
- Department of Medical Nanotechnology, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran
| | | |
Collapse
|
15
|
Weissleder R, Nahrendorf M, Pittet MJ. Imaging macrophages with nanoparticles. NATURE MATERIALS 2014; 13:125-38. [PMID: 24452356 DOI: 10.1038/nmat3780] [Citation(s) in RCA: 561] [Impact Index Per Article: 56.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Accepted: 09/17/2013] [Indexed: 05/02/2023]
Abstract
Nanomaterials have much to offer, not only in deciphering innate immune cell biology and tracking cells, but also in advancing personalized clinical care by providing diagnostic and prognostic information, quantifying treatment efficacy and designing better therapeutics. This Review presents different types of nanomaterial, their biological properties and their applications for imaging macrophages in human diseases, including cancer, atherosclerosis, myocardial infarction, aortic aneurysm, diabetes and other conditions. We anticipate that future needs will include the development of nanomaterials that are specific for immune cell subsets and can be used as imaging surrogates for nanotherapeutics. New in vivo imaging clinical tools for noninvasive macrophage quantification are thus ultimately expected to become relevant to predicting patients' clinical outcome, defining treatment options and monitoring responses to therapy.
Collapse
Affiliation(s)
- Ralph Weissleder
- 1] Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, Massachusetts 02114, USA [2] Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, Massachusetts 02115, USA [3] Department of Radiology, Massachusetts General Hospital, 32 Fruit Street, Boston, Massachusetts 02114, USA
| | - Matthias Nahrendorf
- 1] Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, Massachusetts 02114, USA [2] Department of Radiology, Massachusetts General Hospital, 32 Fruit Street, Boston, Massachusetts 02114, USA
| | - Mikael J Pittet
- 1] Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, Massachusetts 02114, USA [2] Department of Radiology, Massachusetts General Hospital, 32 Fruit Street, Boston, Massachusetts 02114, USA
| |
Collapse
|
16
|
Non-enzymatic-browning-reaction: a versatile route for production of nitrogen-doped carbon dots with tunable multicolor luminescent display. Sci Rep 2014; 4:3564. [PMID: 24389590 PMCID: PMC3880965 DOI: 10.1038/srep03564] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 12/02/2013] [Indexed: 12/23/2022] Open
Abstract
The non-enzymatic browning, namely Maillard reaction is commonly invoked to account for abiotic chemical transformations of organic matter. Here we report a new reaction pathway via the Maillard reaction to systematically synthesize a series of nitrogen-doped carbon dots (C-dots) with superhigh quantum yield (QY) and tunable multicolor luminescent displayment. The starting materials are glucose and the serial amino acid analogues which allow systemically controlling luminescent and physicochemical properties of C-dots at will. Unexpectedly, the as-prepared C-dots possess bright photoluminescence with QY up to 69.1% which is almost the highest ever reported, favorable biocompatibility, excellent aqueous and nonaqueous dispersibility, ultrahigh photostability, and readily functionalization. We have demonstrated that they are particularly suitable for multicolor luminescent display and long-term and real-time cellular imaging. Furthermore, the methodology is readily scalable to large yield, and can provide sufficient amount of C-dots for practical demands.
Collapse
|
17
|
Zhou Z, Chen H, Lipowska M, Wang L, Yu Q, Yang X, Tiwari D, Yang L, Mao H. A dual-modal magnetic nanoparticle probe for preoperative and intraoperative mapping of sentinel lymph nodes by magnetic resonance and near infrared fluorescence imaging. J Biomater Appl 2013; 28:100-11. [PMID: 23812946 DOI: 10.1177/0885328212437883] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The ability to reliably detect sentinel lymph nodes for sentinel lymph node biopsy and lymphadenectomy is important in clinical management of patients with metastatic cancers. However, the traditional sentinel lymph node mapping with visible dyes is limited by the penetration depth of light and fast clearance of the dyes. On the other hand, sentinel lymph node mapping with radionucleotide technique has intrinsically low spatial resolution and does not provide anatomic details in the sentinel lymph node mapping procedure. This work reports the development of a dual modality imaging probe with magnetic resonance and near infrared imaging capabilities for sentinel lymph node mapping using magnetic iron oxide nanoparticles (10 nm core size) conjugated with a near infrared molecule with emission at 830 nm. Accumulation of magnetic iron oxide nanoparticles in sentinel lymph nodes leads to strong T2 weighted magnetic resonance imaging contrast that can be potentially used for preoperative localization of sentinel lymph nodes, while conjugated near infrared molecules provide optical imaging tracking of lymph nodes with a high signal to background ratio. The new magnetic nanoparticle based dual imaging probe exhibits a significant longer lymph node retention time. Near infrared signals from nanoparticle conjugated near infrared dyes last up to 60 min in sentinel lymph node compared to that of 25 min for the free near infrared dyes in a mouse model. Furthermore, axillary lymph nodes, in addition to sentinel lymph nodes, can be also visualized with this probe, given its slow clearance and sufficient sensitivity. Therefore, this new dual modality imaging probe with the tissue penetration and sensitive detection of sentinel lymph nodes can be applied for preoperative survey of lymph nodes with magnetic resonance imaging and allows intraoperative sentinel lymph node mapping using near infrared optical devices.
Collapse
Affiliation(s)
- Zhengyang Zhou
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Cousins A, Thompson SK, Wedding AB, Thierry B. Clinical relevance of novel imaging technologies for sentinel lymph node identification and staging. Biotechnol Adv 2013; 32:269-79. [PMID: 24189095 DOI: 10.1016/j.biotechadv.2013.10.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 10/12/2013] [Accepted: 10/27/2013] [Indexed: 01/07/2023]
Abstract
The sentinel lymph node (SLN) concept has become a standard of care for patients with breast cancer and melanoma, yet its clinical application to other cancer types has been somewhat limited. This is mainly due to the reduced accuracy of conventional SLN mapping techniques (using blue dye and/or radiocolloids as lymphatic tracers) in cancer types where lymphatic drainage is more complex, and SLNs are within close proximity to other nodes or the tumour site. In recent years, many novel techniques for SLN mapping have been developed including fluorescence, x-ray, and magnetic resonant detection. Whilst each technique has its own advantages/disadvantages, the role of targeted contrast agents (for enhanced retention in the SLN, or for immunostaging) is increasing, and may represent the new standard for mapping the SLN in many solid organ tumours. This review article discusses current limitations of conventional techniques, limiting factors of nanoparticulate based contrast agents, and efforts to circumvent these limitations with modern tracer architecture.
Collapse
Affiliation(s)
- Aidan Cousins
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, SA 5095, Australia
| | - Sarah K Thompson
- Discipline of Surgery, University of Adelaide, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
| | - A Bruce Wedding
- School of Engineering, University of South Australia, Mawson Lakes Campus, Mawson Lakes, SA 5095, Australia
| | - Benjamin Thierry
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, SA 5095, Australia.
| |
Collapse
|
19
|
Kim KR, Lee YD, Lee T, Kim BS, Kim S, Ahn DR. Sentinel lymph node imaging by a fluorescently labeled DNA tetrahedron. Biomaterials 2013; 34:5226-35. [DOI: 10.1016/j.biomaterials.2013.03.074] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 03/23/2013] [Indexed: 01/02/2023]
|
20
|
Tsuchimochi M, Hayama K, Toyama M, Sasagawa I, Tsubokawa N. Dual-modality imaging with 99mTc and fluorescent indocyanine green using surface-modified silica nanoparticles for biopsy of the sentinel lymph node: an animal study. EJNMMI Res 2013; 3:33. [PMID: 23618132 PMCID: PMC3639813 DOI: 10.1186/2191-219x-3-33] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 04/05/2013] [Indexed: 12/25/2022] Open
Abstract
Background We propose a new approach to facilitate sentinel node biopsy examination by multimodality imaging in which radioactive and near-infrared (NIR) fluorescent nanoparticles depict deeply situated sentinel nodes and fluorescent nodes with anatomical resolution in the surgical field. For this purpose, we developed polyamidoamine (PAMAM)-coated silica nanoparticles loaded with technetium-99m (99mTc) and indocyanine green (ICG). Methods We conducted animal studies to test the feasibility and utility of this dual-modality imaging probe. The mean diameter of the PAMAM-coated silica nanoparticles was 30 to 50 nm, as evaluated from the images of transmission electron microscopy and scanning electron microscopy. The combined labeling with 99mTc and ICG was verified by thin-layer chromatography before each experiment. A volume of 0.1 ml of the nanoparticle solution (7.4 MBq, except for one rat that was injected with 3.7 MBq, and 1 μg of an ICG derivative [ICG-sulfo-OSu]) was injected submucosally into the tongue of six male Wistar rats. Results Scintigraphic images showed increased accumulation of 99mTc in the neck of four of the six rats. Nineteen lymph nodes were identified in the dissected neck of the six rats, and a contact radiographic study showed three nodes with a marked increase in uptake and three nodes with a weak uptake. NIR fluorescence imaging provided real-time clear fluorescent images of the lymph nodes in the neck with anatomical resolution. Six lymph nodes showed weak (+) to strong (+++) fluorescence, whereas other lymph nodes showed no fluorescence. Nodes showing increased radioactivity coincided with the fluorescent nodes. The radioactivity of 15 excised lymph nodes from the four rats was assayed using a gamma well counter. Comparisons of the levels of radioactivity revealed a large difference between the high-fluorescence-intensity group (four lymph nodes; mean, 0.109% ± 0.067%) and the low- or no-fluorescence-intensity group (11 lymph nodes; mean, 0.001% ± 0.000%, p < 0.05). Transmission electron microscopy revealed that small black granules were localized to and dispersed within the cytoplasm of macrophages in the lymph nodes. Conclusion Although further studies are needed to determine the appropriate dose of the dual-imaging nanoparticle probe for effective sensitivity and safety, the results of this animal study revealed a novel method for improved node detection by a dual-modality approach for sentinel lymph node biopsy.
Collapse
Affiliation(s)
- Makoto Tsuchimochi
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, Niigata, 951-8580, Japan.
| | | | | | | | | |
Collapse
|
21
|
Huang X, Zhang F, Lee S, Swierczewska M, Kiesewetter DO, Lang L, Zhang G, Zhu L, Gao H, Choi HS, Niu G, Chen X. Long-term multimodal imaging of tumor draining sentinel lymph nodes using mesoporous silica-based nanoprobes. Biomaterials 2012; 33:4370-8. [PMID: 22425023 DOI: 10.1016/j.biomaterials.2012.02.060] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 02/27/2012] [Indexed: 11/19/2022]
Abstract
The imaging of sentinel lymph nodes (SLNs), the first defense against primary tumor metastasis, has been considered as an important strategy for noninvasive tracking tumor metastasis in clinics. In this study, we report the development and application of mesoporous silica-based triple-modal nanoprobes that integrate multiple functional moieties to facilitate near-infrared optical, magnetic resonance (MR) and positron emission tomography (PET) imaging. After embedding near-infrared dye ZW800, the nanoprobe was labeled with T(1) contrast agent Gd(3+) and radionuclide (64)Cu through chelating reactions. High stability and long intracellular retention time of the nanoprobes was confirmed by in vitro characterization, which facilitate long-term in vivo imaging. Longitudinal multimodal imaging was subsequently achieved to visualize tumor draining SLNs up to 3 weeks in a 4T1 tumor metastatic model. Obvious differences in uptake rate, amount of particles, and contrast between metastatic and contra-lateral sentinel lymph nodes were observed. These findings provide very helpful guidance for the design of robust multifunctional nanomaterials in SLNs' mapping and tumor metastasis diagnosis.
Collapse
Affiliation(s)
- Xinglu Huang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|