Wrinkled metal based quantum sensor for In vitro cancer diagnosis

This article presents a unique 3D biocompatible Aluminum-based quantum structure (QS) for in vitro cancer detection using Surface Enhanced Raman Scattering (SERS). The Al-based QSs fabricated using ultrashort pulsed laser are of two distinct surface characters, wrinkled and smooth spherical. The limit of detection for chemical sensing of Crystal Violet and Rhodamine 6G by the Al-QS was driven up to single molecule sensing (femtomolar concentration). Biological sensing of cysteine, a disease biomarker and carcinoembryonic antigen (CEA), a cancer biomarker was also tested by the Al-QS. The ability of in vitro cell detection using Al-QS was analyzed with three cell lines, mammalian fibroblast and pancreatic and lung cancer cells. The Al-QS were up taken by the cells through label-free self-internalization and were sensed by SERS. Further assay was performed to differentiate cancerous and non-cancerous cells by measuring lipid and protein peak intensity within the cells. The result of this research indicated that SERS based Al-QS could be a suitable candidate for the early diagnosis of cancer.
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research

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Purpose of review The current review aims to highlight the frequency of RAS mutations in pediatric leukemias and solid tumors and to propose strategies for targeting oncogenic RAS in pediatric cancers. Recent findings The three RAS genes (HRAS, NRAS, and KRAS) comprise the most frequently mutated oncogene family in human cancer. RAS mutations are commonly observed in three of the leading causes of cancer death in the United States, namely lung cancer, pancreatic cancer, and colorectal cancer. The association of RAS mutations with these aggressive malignancies inspired the creation of the National Cancer Institute RAS ...
Source: Current Opinion in Pediatrics - Category: Pediatrics Tags: HEMATOLOGY AND ONCOLOGY: Edited by Brigitte Widemann Source Type: research
The association between gut microbiota and the lung immune system has been attracting increasing interest. Here, we report a case of pancreatic cancer in which the dipeptidyl peptidase ‐4 inhibitor vildagliptin induced unusual manifestations of interstitial pneumonia, possibly under the influence ofLactobacillus paraplantarum probiotic supplementation. Chest computed tomography and positron emission tomography showed multiple ground ‐glass nodules (GGNs) mimicking metastatic lung cancer. Transbronchial biopsy specimens showed mild fibrosis and infiltration of lymphocytes consisting of more CD4+ than CD8+ cells. The CD4...
Source: Thoracic Cancer - Category: Cancer & Oncology Authors: Tags: CASE REPORT Source Type: research
Abstract CD28H and B7-H5 have been identified as receptor-ligand pairs in B7/CD28 family, and have costimulatory activity in immune cells. Here, we have systematically reviewed the research reports on the CD28H/B7-H5 pathway. It was found that CD28H is mainly expressed in T cells and natural killer (NK) cells with naive and poorly differentiated properties, and repeated antigen stimulation leads to permanent loss of CD28H. In tumors, CD28H is mainly expressed in tissue-resident memory (TRM ) lymphocyte T cells, which is associated with improved tumor prognosis. B7-H5 is a ligand for CD28H and is widely expressed i...
Source: Clinical and Developmental Immunology - Category: Allergy & Immunology Authors: Tags: Clin Exp Immunol Source Type: research
In this report we present the retrospective series of 5 cases with metastatic high-grade GEP/CUP NEN/MiNEN who received chemotherapy according to this protocol. PMID: 31896137 [PubMed - as supplied by publisher]
Source: Zeitschrift fur Gastroenterologie - Category: Gastroenterology Authors: Tags: Z Gastroenterol Source Type: research
Conclusions: These results indicated that YPFS attenuated the activation of the TSLP-STAT3 signaling pathway by inhibiting the immune-related factor-TSLP, thereby inhibiting the formation of hepatic microvessels and exerting an anti-HCC effect. PMID: 31885639 [PubMed]
Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
Contributor : Congling XuSeries Type : Expression profiling by arrayOrganism : Homo sapiensPancreatic cancer is a deadliest type of malignancy, largely due to lack of effective intervention. We here report a pair of agents, ATO and JQ1, which synergistically induce apoptosis in the malignancy. Through global and molecular approaches, we have provided evidence that these agents are both able to modulate ER stress and autophagy in the cancer, probably acting in different ways. Cross-talks between ER stress and autophagy are implicated during ATO/ATO plus JQ1 induced apoptosis, in which NRF2 appears to play a central role. o...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by array Homo sapiens Source Type: research
Publication date: March 2020Source: Biomedicine &Pharmacotherapy, Volume 123Author(s): Ying Wang, Nayiyuan Wu, Xia Luo, Xiaoyun Zhang, Qianjin Liao, Jing WangAbstractSOX2OT is a long non-coding RNA that is highly expressed in embryonic stem cells. The SOX2OT gene is comprised of 10 exons and more than two transcription start sites. Dysregulation of SOX2OT is observed in various tumors, including lung cancer, gastric cancer, esophageal cancer, breast cancer, hepatocellular carcinoma, ovarian cancer, pancreatic ductal adenocarcinoma, laryngeal squamous cell carcinoma, cholangiocarcinoma, osteosarcoma, nasopharyngeal carc...
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
This article summarizes the associations between miR-429 and malignant tumors as well as potential action mechanisms. miR-429 has a potential to be used in the future as a biomarker for the diagnosis, treatment and prognosis of certain cancers. PMID: 31884798 [PubMed - as supplied by publisher]
Source: Neoplasma - Category: Cancer & Oncology Authors: Tags: Neoplasma Source Type: research
AbstractObjectivesPaeoniflorin, a representative pinane monoterpene glycoside in plants ofPaeoniaceae family, possesses promising anticancer activities on diverse tumours. This paper summarized the advance of Paeoniflorin on cancersin vivo andin vitro, discussed the related molecular mechanisms, as well as suggested some perspectives of the future investigations.Key findingsAnticancer activities of paeoniflorin have been comprehensively investigated, including liver cancer, gastric cancer, breast cancer, lung cancer, pancreatic cancer, colorectal cancer, glioma, bladder cancer and leukaemia. Furthermore, the potential mole...
Source: Journal of Pharmacy and Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Review Source Type: research
CONCLUSIONS: In all the instances, statistical analysis showed that mean mSWAT score before/after SN diagnosis had a significantly difference (p value=0.0037) suggesting that patients with a SN may have a worse clinical outcome. By secreting immunosuppressive cytokines or recruiting immunosuppressive cells, a sort of mutual help between the two neoplasms may be prompted. Our data suggest that SN development in MF patients may be regarded as a worse prognostic marker. PMID: 31804054 [PubMed - as supplied by publisher]
Source: Giornale Italiano di Dermatologia e Venereologia - Category: Dermatology Tags: G Ital Dermatol Venereol Source Type: research
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