1
|
Uneyama M, Chambers JK, Fujii T, Nakashima K, Uchida K. Establishment and characterization of a novel cell line and xenotransplant mouse model derived from feline colorectal adenocarcinoma. Vet Pathol 2024; 61:190-200. [PMID: 37515543 DOI: 10.1177/03009858231189858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2023]
Abstract
Colorectal adenocarcinoma is an aggressive malignant tumor in cats that frequently metastasizes to the lymph nodes and/or distant organs. However, research on feline colorectal adenocarcinoma is limited, and experimental models have not been established. A novel cell line, FeLeco-G7, was established from the lymph node of a 12-year-old spayed female Maine Coon cat with metastatic colorectal adenocarcinoma. FeLeco-G7 cells were polygonal with abundant cytoplasm and adherent growth. The population-doubling time was approximately 28.3 hours, and the mean number of chromosomes was 37.6±0.1 per cell (ranging between 32 and 41). Consistent with the original tumor, FeLeco-G7 cells were immunopositive for cytokeratin (CK) 20 and CDX2, and immunonegative for CD10 and CK7. Nuclear accumulation of β-catenin was rarely observed. Mutation analysis suggested TP53 gene alterations. A subcutaneous injection of FeLeco-G7 cells into immunodeficient mice resulted in the formation of a mass at the injection site without the development of metastatic lesions. An orthotopic (intrarectal) transplantation of FeLeco-G7 cells caused cachexia and diffuse involvement of the rectal mucosa in one of the 3 mice and the formation of masses around the rectum in the other 2 mice. Metastases to the regional lymph nodes and lungs were detected in three of the 3 and one of the 3 mice, respectively. The histological findings and immunohistochemical features of these masses were similar to those of the original tumor. These results suggest that FeLeco-G7 cells and the orthotopically transplanted mouse model are valuable tools for further molecular and therapeutic research on feline colorectal adenocarcinoma.
Collapse
Affiliation(s)
| | | | | | - Ko Nakashima
- Japan Small Animal Medical Center, Tokorozawa, Japan
| | | |
Collapse
|
2
|
Malekshah R, Moharramnejad M, Gharanli S, Shahi M, Ehsani A, Haribabu J, Ouachtak H, Mirtamizdoust B, Kamwilaisak K, Sillanpää M, Erfani H. MOFs as Versatile Catalysts: Synthesis Strategies and Applications in Value-Added Compound Production. ACS OMEGA 2023; 8:31600-31619. [PMID: 37692216 PMCID: PMC10483527 DOI: 10.1021/acsomega.3c02552] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/01/2023] [Indexed: 09/12/2023]
Abstract
Catalysts played a crucial role in advancing modern human civilization, from ancient times to the industrial revolution. Due to high cost and limited availability of traditional catalysts, there is a need to develop cost-effective, high-activity, and nonprecious metal-based electrocatalysts. Metal-organic frameworks (MOFs) have emerged as an ideal candidate for heterogeneous catalysis due to their physicochemical properties, hybrid inorganic/organic structures, uncoordinated metal sites, and accessible organic sections. MOFs are high nanoporous crystalline materials that can be used as catalysts to facilitate polymerization reactions. Their chemical and structural diversity make them effective for various reactions compared to traditional catalysts. MOFs have been applied in gas storage and separation, ion-exchange, drug delivery, luminescence, sensing, nanofilters, water purification, and catalysis. The review focuses on MOF-enabled heterogeneous catalysis for value-added compound production, including alcohol oxidation, olefin oligomerization, and polymerization reactions. MOFs offer tunable porosity, high spatial density, and single-crystal XRD control over catalyst properties. In this review, MOFs were focused on reactions of CO2 fixation, CO2 reduction, and photoelectrochemical water splitting. Overall, MOFs have great potential as versatile catalysts for diverse applications in the future.
Collapse
Affiliation(s)
- Rahime
Eshaghi Malekshah
- Medical
Biomaterial Research Centre (MBRC), Tehran
University of Medical Sciences, Tehran 14166-34793, Iran
- Department
of Chemistry, Semnan University, Semnan 35131-19111, Iran
| | - Mojtaba Moharramnejad
- Young
Researcher and Elite Group, Qom University, Qom 37161-46611, Iran
- Department
of Chemistry, Faculty of Science, University
of Qom, Qom 37161-46611, Iran
| | - Sajjad Gharanli
- Department
of Chemical Engineering, Faculty of Engineering, University of Qom, Qom 37161-46611, Iran
| | - Mehrnaz Shahi
- Department
of Chemistry, Semnan University, Semnan 35131-19111, Iran
| | - Ali Ehsani
- Department
of Chemistry, Faculty of Science, University
of Qom, Qom 37161-46611, Iran
| | - Jebiti Haribabu
- Facultad
de Medicina, Universidad de Atacama, Los Carreras 1579, Copiapo 1532502, Chile
- Chennai Institute of Technology (CIT), Chennai 600069, India
| | - Hassan Ouachtak
- Laboratory
of Organic and Physical Chemistry, Faculty of Science, Ibn Zohr University, Agadir 80060, Morocco
- Faculty
of Applied Science, Ait Melloul, Ibn Zohr
University, Agadir 80060, Morocco
| | - Babak Mirtamizdoust
- Department
of Chemistry, Faculty of Science, University
of Qom, Qom 37161-46611, Iran
| | - Khanita Kamwilaisak
- Chemical
Engineering Department, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Mika Sillanpää
- Department
of Chemical Engineering, School of Mining, Metallurgy and Chemical
Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
- International
Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, Himachal Pradesh 173212, India
- Department
of Biological and Chemical Engineering, Aarhus University, Nørrebrogade
44, Aarhus C 8000, Denmark
- Department
of Civil Engineering, University Centre for Research & Development, Chandigarh University, Gharuan, Mohali, Punjab 140413, India
| | - Hadi Erfani
- Department
of Chemical Engineering, Central Tehran Branch, Islamic Azad University, Tehran 14778-93855, Iran
| |
Collapse
|
3
|
Encapsulation of Vitamin C by Glycerol-Derived Dendrimers, Their Interaction with Biomimetic Models of Stratum corneum and Their Cytotoxicity. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228022. [PMID: 36432124 PMCID: PMC9698622 DOI: 10.3390/molecules27228022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/09/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022]
Abstract
Vitamin C is one of the most sensitive cosmetic active ingredients. To avoid its degradation, its encapsulation into biobased carriers such as dendrimers is one alternative of interest. In this work, we wanted to evaluate the potential of two biobased glycerodendrimer families (GlyceroDendrimers-Poly(AmidoAmine) (GD-PAMAMs) or GlyceroDendrimers-Poly(Propylene Imine) (GD-PPIs)) as a vitamin C carrier for topical application. The higher encapsulation capacity of GD-PAMAM-3 compared to commercial PAMAM-3 and different GD-PPIs, and its absence of cytotoxicity towards dermal cells, make it a good candidate. Investigation of its mechanism of action was done by using two kinds of biomimetic models of stratum corneum (SC), lipid monolayers and liposomes. GD-PAMAM-3 and VitC@GD-PAMAM-3 (GD-PAMAM-3 with encapsulated vitamin C) can both interact with the lipid representatives of the SC lipid matrix, whichever pH is considered. However, only pH 5.0 is suggested to be favorable to release vitamin C into the SC matrix. Their binding to SC-biomimetic liposomes revealed only a slight effect on membrane permeability in accordance with the absence of cytotoxicity but an increase in membrane rigidity, suggesting a reinforcement of the SC barrier property. Globally, our results suggest that the dendrimer GD-PAMAM-3 could be an efficient carrier for cosmetic applications.
Collapse
|
4
|
Demir Duman F, Monaco A, Foulkes R, Becer CR, Forgan RS. Glycopolymer-Functionalized MOF-808 Nanoparticles as a Cancer-Targeted Dual Drug Delivery System for Carboplatin and Floxuridine. ACS APPLIED NANO MATERIALS 2022; 5:13862-13873. [PMID: 36338327 PMCID: PMC9623548 DOI: 10.1021/acsanm.2c01632] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Codelivery of chemotherapeutics via nanomaterials has attracted much attention over the last decades due to improved drug delivery to tumor tissues, decreased systemic effects, and increased therapeutic efficacies. High porosities, large pore volumes and surface areas, and tunable structures have positioned metal-organic frameworks (MOFs) as promising drug delivery systems (DDSs). In particular, nanoscale Zr-linked MOFs such as MOF-808 offer notable advantages for biomedical applications such as high porosity, good stability, and biocompatibility. In this study, we report efficient dual drug delivery of floxuridine (FUDR) and carboplatin (CARB) loaded in MOF-808 nanoparticles to cancer cells. The nanoparticles were further functionalized by a poly(acrylic acid-mannose acrylamide) (PAAMAM) glycopolymer coating to obtain a highly selective DDS in cancer cells and enhance the therapeutic efficacy of chemotherapy. While MOF-808 was found to enhance the individual therapeutic effects of FUDR and CARB toward cancerous cells, combining FUDR and CARB was seen to cause a synergistic effect, further enhancing the cytotoxicity of the free drugs. Enhancement of CARB loading and therefore cytotoxicity of the CARB-loaded MOFs could be induced through a modified activation protocol, while coating of MOF-808 with the PAAMAM glycopolymer increased the uptake of the nanoparticles in cancer cells used in the study and offered a particularly significant selective drug delivery with high cytotoxicity in HepG2 human hepatocellular carcinoma cells. These results show how the enhancement of cytotoxicity is possible through both nanovector delivery and synergistic treatment, and that MOF-808 is a viable candidate for future drug delivery studies.
Collapse
Affiliation(s)
- Fatma Demir Duman
- WestCHEM,
School of Chemistry, University of Glasgow,
University Avenue, Glasgow G12 8QQ, U.K.
| | - Alessandra Monaco
- Department
of Chemistry, University of Warwick, CV4 7AL Coventry, U.K.
| | - Rachel Foulkes
- WestCHEM,
School of Chemistry, University of Glasgow,
University Avenue, Glasgow G12 8QQ, U.K.
| | - C. Remzi Becer
- Department
of Chemistry, University of Warwick, CV4 7AL Coventry, U.K.
| | - Ross S. Forgan
- WestCHEM,
School of Chemistry, University of Glasgow,
University Avenue, Glasgow G12 8QQ, U.K.
- E-mail:
| |
Collapse
|
5
|
Sharma R, Singh VJ, Chawla PA. Advancements in the Use of Platinum Complexes as Anticancer Agents. Anticancer Agents Med Chem 2021; 22:821-835. [PMID: 34353272 DOI: 10.2174/1871520621666210805150705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/06/2021] [Accepted: 05/30/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND The platinum (II) complexes as anticancer agents have been well explored for the development of novel analogs. Yet, none of them achieved clinical importance in oncology. At present, anticancer compounds containing platinum (II) complexes have been employed in the treatment of colorectal, lung, and genitourinary tumors. Among the platinum-based anticancer drugs, Cisplatin (cis-diamine dichloroplatinum (II), cis-[Pt(NH3)2Cl2]) is one of the most potent components of cancer chemotherapy. The nephrotoxicity, neurotoxicity and ototoxicity, and platinum compounds associated resistant cancer are some major disadvantages. OBJECTIVE With the rapidly growing interest in platinum (II) complexes in tumor chemotherapy, researchers have synthesized many new platinum analogs as anticancer agents that show better cytotoxicity, and less off-target effects with less cellular resistance. This follows the introduction of oxaliplatin, water-soluble carboplatin, multinuclear platinum and newly synthesized complexes, etc. Method: This review emphasizes recent advancements in drug design and development, the mechanism of platinum (II) complexes, their stereochemistry, current updates, and biomedical applications of platinum-based anticancer agents. CONCLUSION In the last few decades, the popularity of platinum complexes as potent anti-cancer agents has risen as scientists have synthesized many new platinum complexes that exhibit better cytotoxicity coupled with less off-target effects.
Collapse
Affiliation(s)
- Rajiv Sharma
- Department of Pharmaceutical Chemistry School of Pharmaceutical Sciences, CT University, Ludhiana. India
| | - Vikram Jeet Singh
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, G.T. Road, Moga-142 001, Punjab. India
| | - Pooja A Chawla
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy, Moga-142001, Punjab. India
| |
Collapse
|