1
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Peptide-functionalized graphene oxide quantum dots as colorectal cancer theranostics. J Colloid Interface Sci 2023; 630:698-713. [DOI: 10.1016/j.jcis.2022.10.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/30/2022] [Accepted: 10/12/2022] [Indexed: 11/11/2022]
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2
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Jain K, Ahmad J, Rizwanullah M, Suthar T, Albarqi HA, Ahmad MZ, Vuddanda PR, Khan MA. Receptor-Targeted Surface Engineered Nanomaterials for Breast Cancer Imaging and Theranostic Applications. Crit Rev Ther Drug Carrier Syst 2022; 39:1-44. [DOI: 10.1615/critrevtherdrugcarriersyst.2022040686] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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3
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Abstract
Quantum dots have attracted a great deal of attention among researchers in optical imaging because of their unique physicochemical properties. Their adjustable size allows quantum dots to emit visible fluorescence with different wavelengths excited by a single light source, allowing them to play an unmatched role in multitarget simultaneous multicolor imaging of tissues and cells compared with other molecular biotechnologies and traditional fluorescent materials. This technology affords real-time observation in situ of multiple biomarkers, allowing us to quantify their expression levels, and helping us to gain a deeper understanding of the interactions among biomolecules and the relationship between biomolecules and disease occurrence, progression, and prognosis. This has potential to aid in clinical diagnosis and treatment decision making.
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Zhang LJ, Xia L, Xie HY, Zhang ZL, Pang DW. Quantum Dot Based Biotracking and Biodetection. Anal Chem 2018; 91:532-547. [DOI: 10.1021/acs.analchem.8b04721] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Li-Juan Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Luojia Hill, Wuhan 430072, P.R. China
| | - Li Xia
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Luojia Hill, Wuhan 430072, P.R. China
| | - Hai-Yan Xie
- School of Life Science, Beijing Institute of Technology, Beijing 100081, P.R. China
| | - Zhi-Ling Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Luojia Hill, Wuhan 430072, P.R. China
| | - Dai-Wen Pang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology, Wuhan University, Luojia Hill, Wuhan 430072, P.R. China
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, P.R. China
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Zhu YY, Chen C, Li JJ, Sun SR. The prognostic value of quantitative analysis of CCL5 and collagen IV in luminal B (HER2-) subtype breast cancer by quantum-dot-based molecular imaging. Int J Nanomedicine 2018; 13:3795-3803. [PMID: 29988769 PMCID: PMC6030937 DOI: 10.2147/ijn.s159585] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Objective Breast cancer is the most common malignancy and one of the main causes of death in women. Luminal B (HER2−) breast cancer subtype has been proposed since the 2011 St Gallon consensus. The hormone receptor status in this type of breast cancer is positive; thus, endocrine therapy was performed in all cases, but the treatment was not satisfactory, and a significant number of cases received very little benefit from chemotherapy. Furthermore, there is no effective treatment target for this subtype. Luminal B (HER2−) breast cancer subtype has been proposed since the 2011 St Gallon consensus. Therefore, the study of the key molecules in the microenvironment of breast cancer can help to reveal the biological characteristics. Patients and methods Luminal B (HER2−) breast cancer is a subtype with higher heterogeneity and poorer prognosis than luminal A. It is known that the development of cancer cells is an active process, and this process needs microenvironment cytokines, including chemokine (C–C motif) ligand 5 (CCL5) and collagen IV. Therefore, CCL5 and collagen IV were imaged and detected by quantum dot, and the CCL5/collagen IV ratio was calculated to investigate the prognostic value of the CCL5/collagen IV ratio in luminal B (HER2−). Results Quantitative determination showed a statistically significant negative correlation between CCL5 and collagen IV. The 5-year disease-free survival (5-DFS) of the high and low CCL5/collagen IV ratio subgroups was significantly different. The CCL5/collagen IV ratio had a greater prognostic value for 5-DFS. The CCL5/collagen IV ratio was an independent prognostic indicator. Conclusion Our findings revealed the effective integration of tumor CCL5 and collagen IV, and a new method for predicting the prognosis of luminal B (HER2−) has been developed.
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Affiliation(s)
- Yong-Yun Zhu
- Department of Thyroid and Breast Surgery, Wuhu Second People's Hospital, Wuhu, Anhui 24100, People's Republic of China
| | - Chuang Chen
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, People's Republic of China,
| | - Juan-Juan Li
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, People's Republic of China,
| | - Sheng-Rong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, People's Republic of China,
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Miyashita M, Gonda K, Tada H, Watanabe M, Kitamura N, Kamei T, Sasano H, Ishida T, Ohuchi N. Quantitative diagnosis of HER2 protein expressing breast cancer by single-particle quantum dot imaging. Cancer Med 2016; 5:2813-2824. [PMID: 27666577 PMCID: PMC5083734 DOI: 10.1002/cam4.898] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/04/2016] [Accepted: 08/16/2016] [Indexed: 12/14/2022] Open
Abstract
Overexpression of HER2 is one of the major causes of breast cancer, and therefore precise diagnosis of its protein expression level is important. However, current methods estimating the HER2‐expression level are insufficient due to problem with the lack of quantification. This might result in a gap between diagnostics and therapeutics targeting HER2. Therefore, a new effective diagnostic method is needed. We developed a new immunohistochemical (IHC) technique with quantum dots (QD)‐conjugated trastuzumab using single‐particle imaging to quantitatively measure the HER2 expression level. Tissues from 37 breast cancer patients with available detailed clinical information were tested by IHC with QDs (IHC‐QD) and the correlation with IHC with 3,3′‐diaminobenzidine (DAB), fluorescence in situ hybridization (FISH), and IHC‐QD was examined. The number of QD‐conjugated trastuzumab particles binding specifically to a cancer cell was precisely calculated as the IHC‐QD score. The IHC‐QD score in 37 cases was correlated proportionally with the score of HER2 gene copy number as assessed by FISH (R = 0.83). When HER2 positivity was judged to be positive, the IHC‐QD score with our cut‐off level was exactly concordant with the FISH score with a cut‐off value of 2.0. Furthermore, IHC‐QDs score and time to progression (TTP) of trastuzumab therapy were well correlated in HER2‐positive cases (R = 0.69). Conversely, the correlation between FISH score and TTP was not observed. We developed a precisely quantitative IHC method using trastuzumab‐conjugated QDs and single‐particle imaging analysis and propose the possibility of using IHC‐QDs score as a predictive factor for trastuzumab therapy.
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Affiliation(s)
- Minoru Miyashita
- Department of Surgical Oncology, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.,Department of Nano-Medical Science, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Kohsuke Gonda
- Department of Nano-Medical Science, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan. .,Department of Medical Physics, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.
| | - Hiroshi Tada
- Department of Surgical Oncology, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Mika Watanabe
- Department of Pathology, Tohoku University Hospital, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Narufumi Kitamura
- Department of Nano-Medical Science, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.,Department of Medical Physics, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Takashi Kamei
- Department of Advanced Surgical Science and Technology, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Hironobu Sasano
- Department of Pathology, Tohoku University Hospital, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Takanori Ishida
- Department of Surgical Oncology, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Noriaki Ohuchi
- Department of Surgical Oncology, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.,Department of Nano-Medical Science, Graduate School of Medicine, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
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7
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Fedosyuk A, Radchanka A, Antanovich A, Prudnikau A, Kvach MV, Shmanai V, Artemyev M. Determination of Concentration of Amphiphilic Polymer Molecules on the Surface of Encapsulated Semiconductor Nanocrystals. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1955-1961. [PMID: 26866303 DOI: 10.1021/acs.langmuir.5b04602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present a method for the determination of the average number of polymer molecules on the surface of A(II)B(VI) luminescent core-shell nanocrystals (CdSe/ZnS, ZnSe/ZnS quantum dots, and CdS/ZnS nanorods) encapsulated with amphiphilic polymer. Poly(maleic anhydride-alt-1-tetradecene) (PMAT) was quantitatively labeled with amino-derivative of fluorescein and the average amount of PMAT molecules per single nanocrystal was determined using optical absorption of the dye in the visible spectral range. The average amount of PMAT molecules grows linearly with the surface area of all studied nanocrystals. However, the surface density of the monomer units increases nonlinearly with the surface area, because of the increased competition between PMAT molecules for Zn-hexanethiol surface binding sites. The average value of zeta potential (ζ = -35 mV) was found to be independent of the size, shape, and chemical composition of nanocrystals at fixed buffer parameters (carbonate-bicarbonate buffer, pH 9.5 and 5 mM ionic strength). This finding is expected to be useful for the determination of the surface density of remaining carboxyl groups in PMAT-encapsulated nanocrystals.
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Affiliation(s)
- Aleksandra Fedosyuk
- Institute for Physical Chemical Problems, Belarusian State University , Leningradskaya str. 14, Minsk 220030, Belarus
| | - Aliaksandra Radchanka
- Institute for Physical Chemical Problems, Belarusian State University , Leningradskaya str. 14, Minsk 220030, Belarus
| | - Artsiom Antanovich
- Institute for Physical Chemical Problems, Belarusian State University , Leningradskaya str. 14, Minsk 220030, Belarus
| | - Anatol Prudnikau
- Institute for Physical Chemical Problems, Belarusian State University , Leningradskaya str. 14, Minsk 220030, Belarus
| | - Maksim V Kvach
- Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus , Minsk 220072, Belarus
| | - Vadim Shmanai
- Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus , Minsk 220072, Belarus
| | - Mikhail Artemyev
- Institute for Physical Chemical Problems, Belarusian State University , Leningradskaya str. 14, Minsk 220030, Belarus
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Wang S, Li W, Yuan D, Song J, Fang J. Quantitative detection of the tumor-associated antigen large external antigen in colorectal cancer tissues and cells using quantum dot probe. Int J Nanomedicine 2016; 11:235-47. [PMID: 26834472 PMCID: PMC4716728 DOI: 10.2147/ijn.s97509] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The large external antigen (LEA) is a cell surface glycoprotein that has been proven to be highly expressed in colorectal cancer (CRC) as a tumor-associated antigen. To evaluate and validate the relationship between LEA expression and clinical characteristics of CRC with high efficiency, LEA expression levels were detected in 85 tissue blocks from CRC patients by quantum dot-based immunohistochemistry (QD-IHC) combined with imaging quantitative analysis using quantum dots with a 605 nm emission wavelength (QD605) conjugated to an ND-1 monoclonal antibody against LEA as a probe. Conventional IHC was performed in parallel for comparison. Both QD-IHC and conventional IHC showed that LEA was specifically expressed in CRC, but not in non-CRC tissues, and high LEA expression was significantly associated with a more advanced T-stage (P<0.05), indicating that LEA is likely to serve as a CRC prognostic marker. Compared with conventional IHC, receiver operating characteristic analysis revealed that QD-IHC possessed higher sensitivity, resulting in an increased positive detection rate of CRC, from 70.1% to 89.6%. In addition, a simpler operation, objective analysis of results, and excellent repeatability make QD-IHC an attractive alternative to conventional IHC in clinical practice. Furthermore, to explore whether the QD probes can be utilized to quantitatively detect living cells or single cells, quantum dot-based immunocytochemistry (QD-ICC) combined with imaging quantitative analysis was developed to evaluate LEA expression in several CRC cell lines. It was demonstrated that QD-ICC could also predict the correlation between LEA expression and the T-stage characteristics of the cell lines, which was confirmed by flow cytometry. The results of this study indicate that QD-ICC has the potential to noninvasively detect rare circulating tumor cells in clinical samples in real clinical applications.
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Affiliation(s)
- Shuo Wang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, People's Republic of China
| | - Wanming Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, People's Republic of China
| | - Dezheng Yuan
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, People's Republic of China
| | - Jindan Song
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, People's Republic of China
| | - Jin Fang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, People's Republic of China
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Zheng HM, Chen C, Wu XH, Chen J, Sun S, Sun JZ, Wang MW, Sun SR. Quantum dot-based in situ simultaneous molecular imaging and quantitative analysis of EGFR and collagen IV and identification of their prognostic value in triple-negative breast cancer. Tumour Biol 2015; 37:2509-18. [PMID: 26385773 DOI: 10.1007/s13277-015-4079-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 09/13/2015] [Indexed: 12/16/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a unique breast cancer subtype with high heterogeneity and poor prognosis. Currently, the treatment effect of TNBC has reached a bottleneck, rendering new breakthroughs difficult. Cancer invasion is not an entirely cell-autonomous process, requiring the cells to transmigrate across the surrounding extracellular matrix (ECM) barriers. Developing a new system that integrates key constituents in the tumor microenvironment with pivotal cancer cell molecules is essential for the in-depth investigation of the mechanism of invasion in TNBC. We describe a computer-aided algorithm developed using quantum dot (QD)-based multiplex molecular imaging of TNBC tissues. We performed in situ simultaneous imaging and quantitative detection of epidermal growth factor receptor (EGFR), expressed in the TNBC cell membrane, and collagen IV, the major ECM constituent; calculated the EGFR/collagen IV ratio; and investigated the prognostic value of the EGFR/collagen IV ratio in TNBC. We simultaneously imaged and quantitatively detected EGFR and collagen IV in the TNBC samples. In all patients, quantitative determination showed a statistically significant negative correlation between EGFR and collagen IV. The 5-year disease-free survival (5-DFS) of the high and low EGFR/collagen IV ratio subgroups was significantly different. The EGFR/collagen IV ratio was predictive and was an independent prognostic indicator in TNBC. Compared with EGFR expression, the EGFR/collagen IV ratio had a greater prognostic value for 5-DFS. Our findings open up a new avenue for predicting the clinical outcome in TNBC from the perspective of integrating molecules expressed in both cancer cells and the ECM.
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Affiliation(s)
- Hong-Mei Zheng
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Tower 238 Jiefang Road, Wuchang District, Wuhan, Hubei Province, 430060, People's Republic of China
| | - Chuang Chen
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Tower 238 Jiefang Road, Wuchang District, Wuhan, Hubei Province, 430060, People's Republic of China
| | - Xin-Hong Wu
- Department of Breast Surgery, Hubei Cancer Hospital, Wuhan, Hubei, People's Republic of China
| | - Jian Chen
- Department of Head and Neck Surgery, Hubei Cancer Hospital, Wuhan, Hubei, People's Republic of China
| | - Si Sun
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Jin-Zhong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Tower 238 Jiefang Road, Wuchang District, Wuhan, Hubei Province, 430060, People's Republic of China
| | - Ming-Wei Wang
- Department of Pathology, Hubei Cancer Hospital, Wuhan, Hubei, People's Republic of China
| | - Sheng-Rong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Tower 238 Jiefang Road, Wuchang District, Wuhan, Hubei Province, 430060, People's Republic of China.
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10
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Quantum dots-based tissue and in vivo imaging in breast cancer researches: current status and future perspectives. Breast Cancer Res Treat 2015; 151:7-17. [PMID: 25833213 PMCID: PMC4408370 DOI: 10.1007/s10549-015-3363-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 03/26/2015] [Indexed: 01/08/2023]
Abstract
As the most common malignant tumor for females, breast cancer (BC) is a highly heterogeneous disease regarding biological behaviors. Precisely targeted imaging on BC masses and biomarkers is critical to BC detection, treatment, monitoring, and prognostic evaluation. As an important imaging technique, quantum dots (QDs)-based imaging has emerged as a promising tool in BC researches owe to its outstanding optical properties. However, few reviews have been specifically devoted to discussing applications of QDs-based imaging in BC researches. This review summarized recent promising works in QDs-based tissue and in vivo imaging for BC studies. Physicochemical and optical properties of QDs and its potential applications were briefly described first. Then QDs-based imaging studies in BC were systematically reviewed, including tissue imaging for studying biomarkers interactions, and evaluating prognostic biomarkers, in vivo imaging for mapping axillary lymphatic system, showing BC xenograft tumor, and detecting BC metastases. At last, the future perspectives with special emphasis on the potential clinical applications have also been discussed. Potential applications of QDs-based imaging on clinical BC in the future are mainly focused on tissue study, especially in BC molecular pathology due to its optimal optical properties and quantitative information capabilities on multiple biomarkers.
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Xiao L, Harihar S, Welch DR, Zhou A. Imaging of epidermal growth factor receptor on single breast cancer cells using surface-enhanced Raman spectroscopy. Anal Chim Acta 2014; 843:73-82. [PMID: 25150698 DOI: 10.1016/j.aca.2014.06.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/15/2014] [Accepted: 06/19/2014] [Indexed: 11/17/2022]
Abstract
Epidermal growth factor receptor (EGFR) is widely used as a biomarker for pathological grading and therapeutic targeting of human cancers. This study investigates expression, spatial distribution as well as the endocytosis of EGFR in single breast cancer cells using surface-enhanced Raman spectroscopy (SERS). By incubating anti-EGFR antibody conjugated SERS nanoprobes with an EGFR-over-expressing cancer cell line, A431, EGFR localization was measured over time and found to be located primarily at the cell surface. To further validate the constructed SERS probes, we applied this SERS probes to detect the EGFR expression on breast cancer cells (MDA-MB-435, MDA-MB-231) and their counterpart cell lines in which EGFR expression was down-regulated by breast cancer metastasis suppressor 1 (BRMS1). The results showed that SERS method not only confirms immunoblot data measuring EGFR levels, but also adds new insights regarding EGFR localization and internalization in living cells which is impossible in immunoblot method. Thus, SERS provides a powerful new tool to measure biomarkers in living cancer cells.
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Affiliation(s)
- Lifu Xiao
- Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA
| | - Sitaram Harihar
- Department of Cancer Biology, The University of Kansas Medical Center and The University of Kansas Cancer Center, Kansas City, KS 66160, USA
| | - Danny R Welch
- Department of Cancer Biology, The University of Kansas Medical Center and The University of Kansas Cancer Center, Kansas City, KS 66160, USA
| | - Anhong Zhou
- Department of Biological Engineering, Utah State University, Logan, UT 84322-4105, USA.
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Li Y, Chen K. [Application of fluorescence probe marked by quantum dots to detect early submandibular lymph node metastasis in a nude mouse model]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2014; 32:273-277. [PMID: 25033645 PMCID: PMC7041229 DOI: 10.7518/hxkq.2014.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 03/20/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE A fluorescence probe marked with a specific angle protein antibody by using quantum dots QDs605-CK (AE1/AE3) was utilized to detect metastasis and micrometastasis rates of early submandibular lymph node metastatic carcinoma in a nude mouse model. The method was compared with traditional immunohistochemistry (IHC) staining and hematine-eosin (HE) staining to explore a new method for early diagnosis and treatment of tongue squamous cell carcinoma. METHODS Human tongue Tca8113 cells were cultured and inoculated in 18 nude mice tongue body tissues (except the midline) to establish submandibular lymph node metastasis in tumor-bearing nude mice models. The nude mice were sacrificed, and the mandibular lymph node was dissected after injecting tumor cells for six weeks. One lymph node was divided into two parts: one was used to create a serial section embedded by paraffin then detected in HE staining and IHC staining; the other was immediately frozen in liquid nitrogen and detected using the fluorescence probe marked with a specific angle protein antibody by using quantum dots. Lymph node metastasis and micrometastases rates were calculated. RESULTS The rates of metastasis in the submandibular lymph node via quantum dot immunofluorescence staining, IHC staining, and HE staining showed positive values of 66.7%, 61.1%, and 27.8%, respectively. The micrometastases rates were 38.9% and 33.3% via quantum dot immunofluorescence staining and IHC staining, respectively. The positive rates of detecting lymph nodes metastasis with quantum dot labeled keratin CK (AEl/AE3) immunofluorescence and keratin CK (AE1/AE3) IHC staining were higher than that of conventional HE staining ('=6.379, P<0.05). The two methods showed no statistical difference (chi2 = 0.120, P > 0.05). CONCLUSION Quantum dots fluorescent probe marked with the angle protein antibody CK (AE1/ AE3) can precisely locate the submandibular lymph node metastasis tumor cell of the nude mice tongue squamous cell carcinoma, and the emitted red fluorescence showed strong specificity, high resolution, and a clear background. The method could be utilized to detect submandibular lymph node metastasis and micrometastasis of tongue squamous cell carcinoma in nude mice.
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13
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Sun JZ, Chen C, Jiang G, Tian WQ, Li Y, Sun SR. Quantum dot-based immunofluorescent imaging of Ki67 and identification of prognostic value in HER2-positive (non-luminal) breast cancer. Int J Nanomedicine 2014; 9:1339-46. [PMID: 24648732 PMCID: PMC3956684 DOI: 10.2147/ijn.s58881] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The immunohistochemical assessment of Ki67 antigen (Ki67) is the most widely practiced measurement of breast cancer cell proliferation; however, it has some disadvantages and thus the prognostic value of Ki67 in breast cancer remains controversial. Our previous studies confirmed the advantages of quantum dots-based nanotechnology for quantitative analysis of biomarkers compared with conventional immunohistochemistry (IHC). This study was designed to assess Ki67 by quantum dot-immunohistochemistry (QD-IHC) and investigate the prognostic value of the Ki67 score in human epidermal growth factor receptor 2 (HER2)-positive (non-luminal) breast cancer. METHODS Ki67 expression in 108 HER2-positive (non-luminal) breast cancer specimens was detected by IHC and QD-IHC. Two observers assessed the Ki67 score independently and comparisons between the two methods were made. The prognostic value of the Ki67 score for five-year disease-free survival was estimated. RESULTS The same antigen localization, high correlation of staining rates (r=0.993), and high agreement of measurements (κ=0.874) of Ki67 expression (cutoff: 30%) in breast cancer were found by QD-IHC and conventional IHC. The QD-IHC had a better interobserver agreement for the Ki67 score than conventional IHC (t=-7.280, P<0.01). High Ki67 expression (cutoff: 30%) was associated with shorter disease-free survival (log-rank test; IHC, P=0.026; QD-IHC, P=0.001), especially in the lymph node-negative subgroups (log-rank test; IHC, P=0.017; QD-IHC, P=0.002). CONCLUSION QD-IHC imaging of Ki67 was an easier and more accurate method for detecting and assessing Ki67. The Ki67 score was an independent prognosticator in the HER2-positive (non-luminal) breast cancer patients.
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Affiliation(s)
- Jin-Zhong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Chuang Chen
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Guan Jiang
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Wei-Qun Tian
- Department of Biomedical Engineering, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei, People’s Republic of China
| | - Yan Li
- Department of Oncology, Zhongnan Hospital of Wuhan University and Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study Center, Wuchang District, Wuhan, Hubei, People’s Republic of China
| | - Sheng-Rong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China,Correspondence: Sheng-Rong Sun, Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Tower 238 Jiefang Road, Wuhan, Hubei Province, 430060, People’s Republic of China, Tel +86 27 8804 1911 extn 82012, Email
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14
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Chen C, Yuan JP, Wei W, Tu Y, Yao F, Yang XQ, Sun JZ, Sun SR, Li Y. Subtype classification for prediction of prognosis of breast cancer from a biomarker panel: correlations and indications. Int J Nanomedicine 2014; 9:1039-48. [PMID: 24591826 PMCID: PMC3937188 DOI: 10.2147/ijn.s58270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background Hormone receptors, including the estrogen receptor and progesterone receptor, human epidermal growth factor receptor 2 (HER2), and other biomarkers like Ki67, epidermal growth factor receptor (EGFR, also known as HER1), the androgen receptor, and p53, are key molecules in breast cancer. This study evaluated the relationship between HER2 and hormone receptors and explored the additional prognostic value of Ki67, EGFR, the androgen receptor, and p53. Methods Quantitative determination of HER2 and EGFR was performed in 240 invasive breast cancer tissue microarray specimens using quantum dot (QD)-based nanotechnology. We identified two subtypes of HER2, ie, high total HER2 load (HTH2) and low total HER2 load (LTH2), and three subtypes of hormone receptor, ie, high hormone receptor (HHR), low hormone receptor (LHR), and no hormone receptor (NHR). Therefore, breast cancer patients could be divided into five subtypes according to HER2 and hormone receptor status. Ki67, p53, and the androgen receptor were determined by traditional immunohistochemistry techniques. The relationship between hormone receptors and HER2 was investigated and the additional value of Ki67, EGFR, the androgen receptor, and p53 for prediction of 5-year disease-free survival was assessed. Results In all patients, quantitative determination showed a statistically significant (P<0.001) negative correlation between HER2 and the hormone receptors and a significant positive correlation (P<0.001) between the estrogen receptor and the progesterone receptor (r=0.588), but a significant negative correlation (P<0.001, r=−0.618) with the HHR subtype. There were significant differences between the estrogen receptor, progesterone receptor, and HER2 subtypes with regard to total HER2 load and hormone receptor subtypes. The rates of androgen receptor and p53 positivity were 46.3% and 57.0%, respectively. Other than the androgen receptor, differences in expression of Ki67, EGFR, and p53 did not achieve statistical significance (P>0.05) between the five subtypes. EGFR and Ki67 had prognostic significance for 5-year disease-free survival in univariate analysis, but the androgen receptor and p53 did not. Multivariate analysis identified that EGFR expression had predictive significance for 5-year disease-free survival in hormone-receptor positive patients and in those with the lymph node-positive breast cancer subtype. Conclusion Hormone receptor expression was indeed one of the molecular profiles in the subtypes identified by quantitative HER2 and vice versa. EGFR status may provide discriminative prognostic information in addition to HER2 and hormone receptor status, and should be integrated into routine practice to help formulate more specific prediction of the prognosis and appropriate individualized treatment.
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Affiliation(s)
- Chuang Chen
- Department of Breast and Thyroid Surgery, Wuhan University, Renmin Hospital, Wuhan, People's Republic of China
| | - Jing-Ping Yuan
- Department of Oncology, Zhongnan Hospital of Wuhan University and Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study Center, Wuhan, People's Republic of China ; Department of Pathology, The Central Hospital of Wuhan, Wuhan, People's Republic of China
| | - Wen Wei
- Department of Breast and Thyroid Surgery, Wuhan University, Renmin Hospital, Wuhan, People's Republic of China
| | - Yi Tu
- Department of Breast and Thyroid Surgery, Wuhan University, Renmin Hospital, Wuhan, People's Republic of China
| | - Feng Yao
- Department of Breast and Thyroid Surgery, Wuhan University, Renmin Hospital, Wuhan, People's Republic of China
| | - Xue-Qin Yang
- Medical School of Jingchu University of Technology, Jingmen, People's Republic of China
| | - Jin-Zhong Sun
- Department of Breast and Thyroid Surgery, Wuhan University, Renmin Hospital, Wuhan, People's Republic of China
| | - Sheng-Rong Sun
- Department of Breast and Thyroid Surgery, Wuhan University, Renmin Hospital, Wuhan, People's Republic of China
| | - Yan Li
- Department of Oncology, Zhongnan Hospital of Wuhan University and Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study Center, Wuhan, People's Republic of China
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Ji MY, Fan DK, Lv XG, Peng XL, Lei XF, Dong WG. The detection of EBP50 expression using quantum dot immunohistochemistry in pancreatic cancer tissue and down-regulated EBP50 effect on PC-2 cells. J Mol Histol 2012; 43:517-26. [PMID: 22622406 DOI: 10.1007/s10735-012-9424-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 04/29/2012] [Indexed: 12/19/2022]
Abstract
Ezrin-radixin-moesin-binding phosphoprotein 50 (EBP50) is a putative tumor suppressor that is correlated with many human cancers. However, the function of EBP50 in pancreatic cancer (PC) has not been described. In this paper, the EBP50 expression level in PC tissues was characterized. In vitro, the effects of EBP50 down-regulation by siRNA in PC-2 and MiaPaCa-2 cells were evaluated. In addition, possible mechanisms that mediate the influence of EBP50 were examined. Our results show that the EBP50 expression pattern changes during transformation as there is a loss of the normal apical membrane distribution and an ectopic cytoplasmic over-expression of EBP50; furthermore, the EBP50 expression level is subsequently decreased during malignant progression. Down-regulation of EBP50 promoted cancer cell proliferation, increased the colony-forming ability of cells and accelerated the G1-to-S progression. Additionally, the loss of EBP50 accentuated β-catenin activity, increased cyclin E and phosphorylated Rb expression, and attenuated p27 expression compared to control cells. Our results suggest that EBP50 may function as a potential tumor suppressor.
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Affiliation(s)
- Meng-Yao Ji
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
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