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Lee CH, Mac J, Hanley T, Zaman S, Vankayala R, Anvari B. Membrane cholesterol enrichment and folic acid functionalization lead to increased accumulation of erythrocyte-derived optical nano-constructs within the ovarian intraperitoneal tumor implants in mice. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2024; 56:102728. [PMID: 38061449 DOI: 10.1016/j.nano.2023.102728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/15/2023] [Accepted: 11/21/2023] [Indexed: 02/06/2024]
Abstract
Cytoreductive surgery remains as the gold standard to treat ovarian cancer, but with limited efficacy since not all tumors can be intraoperatively visualized for resection. We have engineered erythrocyte-derived nano-constructs that encapsulate the near infrared (NIR) fluorophore, indocyanine green (ICG), as optical probes for NIR fluorescence imaging of ovarian tumors. Herein, we have enriched the membrane of these nano-constructs with cholesterol, and functionalized their surface with folic acid (FA) to target the folate receptor-α. Using a mouse model, we show that the average fraction of the injected dose per tumor mass for nano-constructs with both membrane cholesterol enrichment and FA functionalization was ~ sixfold higher than non-encapsulated ICG, ~ twofold higher than nano-constructs enriched with cholesterol alone, and 33 % higher than nano-constructs with only FA functionalization at 24-h post-injection. These results suggest that erythrocyte-derived nano-constructs containing both cholesterol and FA present a platform for improved fluorescence imaging of ovarian tumors.
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Affiliation(s)
- Chi-Hua Lee
- Department of Biochemistry, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA
| | - Jenny Mac
- Department of Biochemistry, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA
| | - Taylor Hanley
- Department of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA
| | - Shamima Zaman
- Department of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA
| | - Raviraj Vankayala
- Department of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA
| | - Bahman Anvari
- Department of Biochemistry, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA; Department of Bioengineering, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA.
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2
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Deng Z, Gao W, Kohram F, Li E, Kalin TV, Shi D, Kalinichenko VV. Fluorinated amphiphilic Poly(β-Amino ester) nanoparticle for highly efficient and specific delivery of nucleic acids to the Lung capillary endothelium. Bioact Mater 2024; 31:1-17. [PMID: 37593494 PMCID: PMC10432146 DOI: 10.1016/j.bioactmat.2023.07.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/19/2023] Open
Abstract
Endothelial cell dysfunction occurs in a variety of acute and chronic pulmonary diseases including pulmonary hypertension, viral and bacterial pneumonia, bronchopulmonary dysplasia, and congenital lung diseases such as alveolar capillary dysplasia with misalignment of pulmonary veins (ACDMPV). To correct endothelial dysfunction, there is a critical need for the development of nanoparticle systems that can deliver drugs and nucleic acids to endothelial cells with high efficiency and precision. While several nanoparticle delivery systems targeting endothelial cells have been recently developed, none of them are specific to lung endothelial cells without targeting other organs in the body. In the present study, we successfully solved this problem by developing non-toxic poly(β-amino) ester (PBAE) nanoparticles with specific structure design and fluorinated modification for high efficiency and specific delivery of nucleic acids to the pulmonary endothelial cells. After intravenous administration, the PBAE nanoparticles were capable of delivering non-integrating DNA plasmids to lung microvascular endothelial cells but not to other lung cell types. IVIS whole body imaging and flow cytometry demonstrated that DNA plasmid were functional in the lung endothelial cells but not in endothelial cells of other organs. Fluorination of PBAE was required for lung endothelial cell-specific targeting. Hematologic analysis and liver and kidney metabolic panels demonstrated the lack of toxicity in experimental mice. Thus, fluorinated PBAE nanoparticles can be an ideal vehicle for gene therapy targeting lung microvascular endothelium in pulmonary vascular disorders.
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Affiliation(s)
- Zicheng Deng
- Phoenix Children's Health Research Institute, Department of Child Health, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, 85004, USA
| | - Wen Gao
- Phoenix Children's Health Research Institute, Department of Child Health, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, 85004, USA
| | - Fatemeh Kohram
- Phoenix Children's Health Research Institute, Department of Child Health, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, 85004, USA
| | - Enhong Li
- Phoenix Children's Health Research Institute, Department of Child Health, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, 85004, USA
| | - Tanya V. Kalin
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Donglu Shi
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Vladimir V. Kalinichenko
- Phoenix Children's Health Research Institute, Department of Child Health, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, 85004, USA
- Division of Neonatology, Phoenix Children's Hospital, Phoenix, AZ, 85016, USA
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Kong J, Xu S, Dai Y, Wang Y, Zhao Y, Zhang P. Study of the Fe 3O 4@ZIF-8@Sor Composite Modified by Tannic Acid for the Treatment of Sorafenib-Resistant Hepatocellular Carcinoma. ACS OMEGA 2023; 8:39174-39185. [PMID: 37901534 PMCID: PMC10601084 DOI: 10.1021/acsomega.3c04215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/30/2023] [Indexed: 10/31/2023]
Abstract
Chemotherapeutic agents fail in clinical chemotherapy in the absence of targeting and acquired resistance. We, therefore, synthesized Fe3O4@ZIF-8@Sor@TA nanocomposite drugs based on the drug delivery properties of nanomaterials. ZIF-8 is a nanomaterial with a porous structure that can load anticancer drugs. The nanodrug used the paramagnetic property of Fe3O4 to deliver sorafenib (Sor) precisely to the tumor site, then used the pH responsiveness of ZIF-8 to slowly release Sor in the tumor microenvironment, and finally used tannic acid (TA) to inhibit P-glycoprotein to suppress the Sor resistance. The results of material characterization presented that the prepared material was structurally stable and was able to achieve a cumulative drug release of 38.2% at pH 5.0 for 72 h. The good biocompatibility of the composite was demonstrated by in vitro and in vivo experiments, which could improve antitumor activity and reduce Sor resistance through magnetic targeting TA. In conclusion, the Fe3O4@ZIF-8@Sor@TA material prepared in this study demonstrated high antitumor activity in hepatocellular carcinoma treatment, promising to reduce drug resistance and providing a novel research approach for cancer treatment.
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Affiliation(s)
- Jianqiao Kong
- Department of General Surgery, Xiangyang No. 1 People’s Hospital, Hubei University
of Medicine, Xiangyang City 441000, China
| | - Song Xu
- Department of General Surgery, Xiangyang No. 1 People’s Hospital, Hubei University
of Medicine, Xiangyang City 441000, China
| | - Yang Dai
- Department of General Surgery, Xiangyang No. 1 People’s Hospital, Hubei University
of Medicine, Xiangyang City 441000, China
| | - Yi Wang
- Department of General Surgery, Xiangyang No. 1 People’s Hospital, Hubei University
of Medicine, Xiangyang City 441000, China
| | - Yun Zhao
- Department of General Surgery, Xiangyang No. 1 People’s Hospital, Hubei University
of Medicine, Xiangyang City 441000, China
| | - Peng Zhang
- Department of General Surgery, Xiangyang No. 1 People’s Hospital, Hubei University
of Medicine, Xiangyang City 441000, China
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Alkhathami AG, Sahib AS, Al Fayi MS, Fadhil AA, Jawad MA, Shafik SA, Sultan SJ, Almulla AF, Shen M. Glycolysis in human cancers: Emphasis circRNA/glycolysis axis and nanoparticles in glycolysis regulation in cancer therapy. ENVIRONMENTAL RESEARCH 2023; 234:116007. [PMID: 37119844 DOI: 10.1016/j.envres.2023.116007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 06/19/2023]
Abstract
The metabolism of cancer has been an interesting hallmark and metabolic reprogramming, especially the change from oxidative phosphorylation in mitochondria to glucose metabolism known as glycolysis occurs in cancer. The molecular profile of glycolysis, related molecular pathways and enzymes involved in this mechanism such as hexokinase have been fully understood. The glycolysis inhibition can significantly decrease tumorigenesis. On the other hand, circRNAs are new emerging non-coding RNA (ncRNA) molecules with potential biological functions and aberrant expression in cancer cells which have received high attention in recent years. CircRNAs have a unique covalently closed loop structure which makes them highly stable and reliable biomarkers in cancer. CircRNAs are regulators of molecular mechanisms including glycolysis. The enzymes involved in the glycolysis mechanism such as hexokinase are regulated by circRNAs to modulate tumor progression. Induction of glycolysis by circRNAs can significantly increase proliferation rate of cancer cells given access to energy and enhance metastasis. CircRNAs regulating glycolysis can influence drug resistance in cancers because of theirimpact on malignancy of tumor cells upon glycolysis induction. TRIM44, CDCA3, SKA2 and ROCK1 are among the downstream targets of circRNAs in regulating glycolysis in cancer. Additionally, microRNAs are key regulators of glycolysis mechanism in cancer cells and can affect related molecular pathways and enzymes. CircRNAs sponge miRNAs to regulate glycolysis as a main upstream mediator. Moreover, nanoparticles have been emerged as new tools in tumorigenesis suppression and in addition to drug and gene delivery, then mediate cancer immunotherapy and can be used for vaccine development. The nanoparticles can delivery circRNAs in cancer therapy and they are promising candidates in regulation of glycolysis, its suppression and inhibition of related pathways such as HIF-1α. The stimuli-responsive nanoparticles and ligand-functionalized ones have been developed for selective targeting of glycolysis and cancer cells, and mediating carcinogenesis inhibition.
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Affiliation(s)
- Ali G Alkhathami
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia.
| | - Ameer S Sahib
- Department of Pharmacy, Al- Mustaqbal University College, 51001 Hilla, Iraq
| | - Majed Saad Al Fayi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Mohammed Abed Jawad
- Department of Medical Laboratories Technology, Al-Nisour University College, Iraq
| | - Sahar Ahmad Shafik
- Professor of Community Health Nursing, Faculty of Nursing, Fayum University, Egypt; College of Nursing, National University of Science and Technology, Iraq
| | | | - Abbas F Almulla
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Min Shen
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, China.
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Huang YY, Lee ZH, Chang KC, Wu ZY, Lee CC, Tsou MH, Lin HM. Mesoporous silica nanoparticles with dual-targeting agricultural sources for enhanced cancer treatment via tritherapy. RSC Adv 2023; 13:19079-19090. [PMID: 37362343 PMCID: PMC10288219 DOI: 10.1039/d3ra02068a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023] Open
Abstract
In this study, we introduced dual-targeting folic acid (FA) and hyaluronic acid (HA) modified on the surface of rice husk mesoporous silica nanoparticles (rMSNs). The rMSNs were employed as a drug delivery system loaded with camptothecin (CPT) as a model drug, Eu3+ ions as a photosensitizer for photodynamic therapy (PDT), bismuth (Bi) for photothermal therapy (PTT), and Gd3+ ions for magnetic resonance imaging (MRI) to develop novel nanoparticles, rMSN-EuGd-Bi@CPT-HA-FA, with dual-targeted function and triple therapy for cancer treatment. The results of the cell cytotoxicity experiment showed that the A549 cancer cells had a survival rate of approximately 35% when treated with 200 μg mL-1 of rMSN-EuGd-Bi@CPT-HA-FA under 808 nm irradiation for 15 min. The dual-targeted function and synergistic treatment of CPT, PTT, and PDT were also responsible for the 20% survival rate of the A549 cancer cells treated with 200 μg mL-1 of rMSN-EuGd-Bi@CPT-HA-FA under 808 nm irradiation for 30 min. The results showed that rMSN-EuGd-Bi@CPT-HA-FA can effectively combine chemotherapy (through CPT), PDT, and PTT for cancer treatment.
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Affiliation(s)
- Yu-Ya Huang
- National Taiwan Ocean University, Department of Bioscience and Biotechnology No. 2, Beining Rd., Zhongzheng Dist. Keelung City 202 Taiwan Republic of China +886-2-2462-2192 +886-2-2462-2192
| | - Zui-Harng Lee
- National Taiwan Ocean University, Department of Bioscience and Biotechnology No. 2, Beining Rd., Zhongzheng Dist. Keelung City 202 Taiwan Republic of China +886-2-2462-2192 +886-2-2462-2192
| | - Kai-Chi Chang
- National Taiwan Ocean University, Bachelor Degree Program in Marine Biotechenology Taiwan
| | - Zhi-Yuan Wu
- National Taiwan Ocean University, Department of Bioscience and Biotechnology No. 2, Beining Rd., Zhongzheng Dist. Keelung City 202 Taiwan Republic of China +886-2-2462-2192 +886-2-2462-2192
| | - Cheng-Chang Lee
- National Taiwan Ocean University, Department of Bioscience and Biotechnology No. 2, Beining Rd., Zhongzheng Dist. Keelung City 202 Taiwan Republic of China +886-2-2462-2192 +886-2-2462-2192
| | - Min-Hsuan Tsou
- National Taiwan Ocean University, Department of Bioscience and Biotechnology No. 2, Beining Rd., Zhongzheng Dist. Keelung City 202 Taiwan Republic of China +886-2-2462-2192 +886-2-2462-2192
| | - Hsiu-Mei Lin
- National Taiwan Ocean University, Department of Bioscience and Biotechnology No. 2, Beining Rd., Zhongzheng Dist. Keelung City 202 Taiwan Republic of China +886-2-2462-2192 +886-2-2462-2192
- National Taiwan Ocean University, Center of Excellence for the Oceans Taiwan
- National Taiwan Ocean University, Center of Excellence for Ocean Engineering Taiwan
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Donovan J, Deng Z, Bian F, Shukla S, Gomez-Arroyo J, Shi D, Kalinichenko VV, Kalin TV. Improving anti-tumor efficacy of low-dose Vincristine in rhabdomyosarcoma via the combination therapy with FOXM1 inhibitor RCM1. Front Oncol 2023; 13:1112859. [PMID: 36816948 PMCID: PMC9933126 DOI: 10.3389/fonc.2023.1112859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 01/06/2023] [Indexed: 02/05/2023] Open
Abstract
Rhabdomyosarcoma (RMS) is a highly metastatic soft-tissue sarcoma that often develops resistance to current therapies, including vincristine. Since the existing treatments have not significantly improved survival, there is a critical need for new therapeutic approaches for RMS patients. FOXM1, a known oncogene, is highly expressed in RMS, and is associated with the worst prognosis in RMS patients. In the present study, we found that the combination treatment with specific FOXM1 inhibitor RCM1 and low doses of vincristine is more effective in increasing apoptosis and decreasing RMS cell proliferation in vitro compared to single drugs alone. Since RCM1 is highly hydrophobic, we developed innovative nanoparticle delivery system containing poly-beta-amino-esters and folic acid (NPFA), which efficiently delivers RCM1 to mouse RMS tumors in vivo. The combination of low doses of vincristine together with intravenous administration of NPFA nanoparticles containing RCM1 effectively reduced RMS tumor volumes, increased tumor cell death and decreased tumor cell proliferation in RMS tumors compared to RCM1 or vincristine alone. The combination therapy was non-toxic as demonstrated by liver metabolic panels using peripheral blood serum. Using RNA-seq of dissected RMS tumors, we identified Chac1 as a uniquely downregulated gene after the combination treatment. Knockdown of Chac1 in RMS cells in vitro recapitulated the effects of the combination therapy. Altogether, combination treatment with low doses of vincristine and nanoparticle delivery of FOXM1 inhibitor RCM1 in a pre-clinical model of RMS has superior anti-tumor effects and decreases CHAC1 while reducing vincristine toxicity.
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Affiliation(s)
- Johnny Donovan
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Zicheng Deng
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, United States,Center for Lung Regenerative Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Fenghua Bian
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Samriddhi Shukla
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Jose Gomez-Arroyo
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Division of Pulmonary and Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Donglu Shi
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, United States
| | - Vladimir V. Kalinichenko
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,Center for Lung Regenerative Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
| | - Tanya V. Kalin
- Division of Pulmonary Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States,*Correspondence: Tanya V. Kalin,
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Sadat ME, Bud’ko SL, Ewing RC, Xu H, Pauletti GM, Mast DB, Shi D. Effect of Dipole Interactions on Blocking Temperature and Relaxation Dynamics of Superparamagnetic Iron-Oxide (Fe 3O 4) Nanoparticle Systems. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16020496. [PMID: 36676230 PMCID: PMC9866362 DOI: 10.3390/ma16020496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 05/14/2023]
Abstract
The effects of dipole interactions on magnetic nanoparticle magnetization and relaxation dynamics were investigated using five nanoparticle (NP) systems with different surfactants, carrier liquids, size distributions, inter-particle spacing, and NP confinement. Dipole interactions were found to play a crucial role in modifying the blocking temperature behavior of the superparamagnetic nanoparticles, where stronger interactions were found to increase the blocking temperatures. Consequently, the blocking temperature of a densely packed nanoparticle system with stronger dipolar interactions was found to be substantially higher than those of the discrete nanoparticle systems. The frequencies of the dominant relaxation mechanisms were determined by magnetic susceptibility measurements in the frequency range of 100 Hz-7 GHz. The loss mechanisms were identified in terms of Brownian relaxation (1 kHz-10 kHz) and gyromagnetic resonance of Fe3O4 (~1.12 GHz). It was observed that the microwave absorption of the Fe3O4 nanoparticles depend on the local environment surrounding the NPs, as well as the long-range dipole-dipole interactions. These significant findings will be profoundly important in magnetic hyperthermia medical therapeutics and energy applications.
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Affiliation(s)
- Md Ehsan Sadat
- Department of Physics, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Sergey L. Bud’ko
- Ames Laboratory, Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
| | - Rodney C. Ewing
- Department of Geological Sciences, Stanford University, Stanford, CA 94305-2115, USA
| | - Hong Xu
- Med-X Institute, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Giovanni M. Pauletti
- Department of Pharmaceutical and Administrative Sciences, St. Louis College of Pharmacy, University of Health Sciences & Pharmacy, St. Louis, MO 63110, USA
| | - David B. Mast
- Department of Physics, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Donglu Shi
- The Materials Science and Engineering Program, Department of Mechanical and Materials Engineering, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH 45221, USA
- Correspondence:
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Anticancer peptides mechanisms, simple and complex. Chem Biol Interact 2022; 368:110194. [PMID: 36195187 DOI: 10.1016/j.cbi.2022.110194] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 11/22/2022]
Abstract
Peptide therapy has started since 1920s with the advent of insulin application, and now it has emerged as a new approach in treatment of diseases including cancer. Using anti-cancer peptides (ACPs) is a promising way of cancer therapy as ACPs are continuing to be approved and arrived at major pharmaceutical markets. Traditional cancer treatments face different problems like intensive adverse effects to patient's body, cell resistance to conventional chemical drugs and in some worse cases the occurrence of cell multidrug resistance (MDR) of cancerous tissues against chemotherapy. On the other hand, there are some benefits conceived for peptides usage in treatment of diseases specifically cancer, as these compounds present favorable characteristics such as smaller size, high activity, low immunogenicity, good biocompatibility in vivo, convenient and rapid way of synthesis, amenable to sequence modification and revision and there is no limitation for the type of cargo they carry. It is possible to achieve an optimum molecular and functional structure of peptides based on previous experience and bank of peptide motif data which may result in novel peptide design. Bioactive peptides are able to form pores in cell membrane and induce necrosis or apoptosis of abnormal cells. Moreover, recent researches have focused on the tumor recognizing peptide motifs with the ability to permeate to cancerous cells with the aim of cancer treatment at earlier stages. In this strategy the most important factors for addressing cancer are choosing peptides with easy accessibility to tumor cell without cytotoxicity effect towards normal cells. The peptides must also meet acceptable pharmacokinetic requirements. In this review, the characteristics of peptides and cancer cells are discussed. The various mechanisms of peptides' action proposed against cancer cells make the next part of discussion. It will be followed by giving information on peptides application, various methods of peptide designing along with introducing various databases. Future aspects of peptides for employing in area of cancer treatment come as conclusion at the end.
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Circulating tumor cell isolation for cancer diagnosis and prognosis. EBioMedicine 2022; 83:104237. [PMID: 36041264 PMCID: PMC9440384 DOI: 10.1016/j.ebiom.2022.104237] [Citation(s) in RCA: 84] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/03/2022] Open
Abstract
Circulating tumor cells (CTCs) are tumor cells that shed from the primary tumor and intravasate into the peripheral blood circulation system responsible for metastasis. Sensitive detection of CTCs from clinical samples can serve as an effective tool in cancer diagnosis and prognosis through liquid biopsy. Current CTC detection technologies mainly reply on the biomarker-mediated platforms including magnetic beads, microfluidic chips or size-sensitive microfiltration which can compromise detection sensitivity due to tumor heterogeneity. A more sensitive, biomarker independent CTCs isolation technique has been recently developed with the surface-charged superparamagnetic nanoprobe capable of different EMT subpopulation CTC capture from 1 mL clinical blood. In this review, this new strategy is compared with the conventional techniques on biomarker specificity, impact of protein corona, effect of glycolysis on cell surface charge, and accurate CTC identification. Correlations between CTC enumeration and molecular profiling in clinical blood and cancer prognosis are provided for clinical cancer management.
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