Molecules, Vol. 24, Pages 3142: Development of the Tumor-Specific Antigen-Derived Synthetic Peptides as Potential Candidates for Targeting Breast and Other Possible Human Carcinomas

In this study, HER2 and MUC1-based peptides were synthesized and preclinically evaluated in an effort to develop peptide-based SPECT radiopharmaceuticals derived from tumor-associated antigens for the detection of breast cancer. Our findings demonstrate that the tumor antigen peptides radiolabeled efficiently with 99mTc and showed high metabolic stability in human plasma in vitro. The data from breast tumor cell binding confirmed the high affinity (in low nanomolar range) towards respective breast cancer cell lines. In healthy mice, 99mTc-labeled peptides displayed favorable pharmacokinetics, with high excretion by the renal system. In tumor xenografts nude mice models, good uptake by the SKBR3, MCF7, and T47D tumors were found, with good tumor-to-blood and tumor to muscle ratios. Additionally, tumor lesions can be seen in γ-camera imaging. Our data suggest that based on its ability to detect HER2- and MUC1-positive breast cancer cells in vivo, 99mTc-HER2 and 99mTc-MUC1-targeted peptides may be promising tumor imaging probes and warrant further investigation.
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research

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Publication date: Available online 23 January 2020Source: Journal of the American Society of CytopathologyAuthor(s): Haiyan Lu, Tarik M. Elsheikh, Yaxia ZhangBackfroundPolyoma virus cytopathic effect (BK-CPE) is classified as “Negative for high-grade urothelial carcinoma (NHGUC)” in the Paris System for Reporting Urinary Cytology (TPS). However, polyomaviruses have been historically associated with tumor development and recently reported as an independent risk factor for renourinary carcinoma in transplant patients. The aim of this study was to investigate the relationship between polyomavirus infection in the ...
Source: Journal of the American Society of Cytopathology - Category: Cytology Source Type: research
In conclusion, the frequency of MCN is higher in middle-aged women, being the location in the distal pancreas and the percentage of malignancy is low. Laparoscopic surgery is a disease management option. PMID: 31967260 [PubMed - in process]
Source: Revista Peruana de Medicina de Experimental y Salud Publica - Category: International Medicine & Public Health Tags: Rev Peru Med Exp Salud Publica Source Type: research
Authors: Lancellotti P, De Pauw M, Claeys M Abstract Cardiovascular disease (CVD) and cancer represent the two main causes of death in industrialised countries. Both share common risk factors (diabetes, obesity, hypertension, diet, smoking, etc.). The associated timing of CVD and cancer onset is thus largely influenced by modifiable risk factors. Advances in cancer treatment have extended the lives of patients with cancer, but for some at the cost of adverse cardiovascular events. The rapidly growing number of patients surviving cancer, often in the setting of advanced age, new or pre-existing CV disease and risk f...
Source: Acta Cardiologica - Category: Cardiology Tags: Acta Cardiol Source Type: research
Authors: Lai G, Guo N, Jiang Y, Lai J, Li Y, Lai R Abstract OBJECTIVE: To assess whether the duration of one-lung ventilation (OLV) affects postoperative pulmonary complications after McKeown esophagectomy for esophageal cancer. METHODS: A retrospective analysis of data stored in a database for esophageal cancer was carried out to identify predictors of postoperative pulmonary complications in patients undergoing McKeown esophagectomy at Sun Yat-sen University Cancer Center between 2010 and 2012. RESULTS: Patients in the OLV ⩾150 minutes group had a higher incidence of postoperative pulmonary complication...
Source: Tumori - Category: Cancer & Oncology Tags: Tumori Source Type: research
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Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Authors: Li K, Yang J, Chen J, Shi Y, Zhang Z, Chen W Abstract The present study investigated if c-MYC and high mobility group AT-hook 2 (HMGA2) expression was associated with prognosis of patients with pancreatic ductal adenocarcinoma (PDAC). A total of 102 patients undergoing surgery for PDAC were retrospectively reviewed. Immunohistochemistry was used to detect c-MYC and HMGA2 protein expression in PDAC and peritumoral tissue samples. Expression of c-MYC and HMGA2 was associated with clinicopathological characteristics and prognoses of patients with PDAC using multivariate analysis. HMGA2 and c-MYC protein expre...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
This study is an important step forward in highlighting C1q as a new prognostic candidate biomarker for a range of carcinomas. Methods Oncomine Database Analysis The expression levels of C1QA, C1QB, and C1QC genes in various carcinomas were analyzed using Oncomine (www.oncomine.org), a cancer microarray database and web-based data mining platform from genome-wide expression analyses (22, 23). We compared the differences in mRNA level between normal tissue and carcinoma. The mRNA expression levels in neoplastic tissues compared to the healthy tissues were obtained as the parameters of p-value 2, and gene ranking in the t...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
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Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusions: This meta-analysis demonstrated that CD44 overexpression might be an unfavorable prognostic factor for CRC patients and could be used to predict poor differentiation, lymph node metastasis and distant metastasis. Introduction Although therapies for colorectal cancer (CRC) has improved in recent years, colorectal cancer is still the third most common cause of cancer related death worldwide (1). Metastasis are observed in 25% of patients at initial diagnosis and approximately 50% of patients will develop metastasis (2). Presently, the outcome prediction and the therapy schedule determination of CRC patie...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
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Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
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