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Cytosine-phosphate-guanine oligodeoxynucleotides regulate the cell cycle, apoptosis, and steroidogenesis of mouse ovarian granulosa cells by targeting inhibin alpha (1 ~ 32) fragments. In Vitro Cell Dev Biol Anim 2022; 58:243-254. [PMID: 35378691 DOI: 10.1007/s11626-022-00662-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 02/28/2022] [Indexed: 11/05/2022]
Abstract
Cytosine-phosphate-guanine oligodeoxynucleotides (CpG-ODNs), which exist in vertebrate, bacterial, and viral genomes, are regarded as strong immune adjuvants. To date, the biological activities of CpG-ODNs in reproduction remain unknown. Here, we investigated the effects of CpG-ODNs on the cell cycle, apoptosis, and steroidogenesis in mouse granulosa cells (mGCs), in combination with inhibin alpha (1 ~ 32) fragments. mGCs were transfected with pEGFP (containing green fluorescent protein, as a control), pEGISI (containing inhibin alpha (1 ~ 32) fragments), or pEGISI-CpG-ODNs (containing inhibin alpha (1 ~ 32) fragments and CpG-ODNs motifs) plasmid for 48 h in vitro. Our results showed that the mRNA and protein expression levels of inhibin alpha were downregulated in mGCs transfected with pEGISI-CpG-ODNs, compared to those transfected with pEGISI. Flow cytometry demonstrated that pEGISI-CpG-ODNs transfection promoted cell proliferation (for example, increasing the number of cells in S and G2 phases) and decreased apoptosis, compared to pEGISI transfection. The present study also indicated that the expression of cell cycle-related genes (cyclin D2, cyclin D3, cyclin E1, Cdk2, and Cdk6) was increased, while the expression of apoptosis-related factors (Fas, FasL, caspase-8, and caspase-3) decreased after pEGISI-CpG-ODNs treatment. Additionally, pEGISI-CpG-ODNs reversed the effect of pEGISI on the secretion of estradiol in mGCs, which was further validated by upregulating the levels of its synthesis-related factors (StAR, Cyp11a1, and 17β-HSD II). Nevertheless, pEGISI-CpG-ODNs or pEGISI did not affect the concentration of progesterone nor changed the expression levels of its synthesis-related factors (3β-HSD I and Cyp19a1). In conclusion, this study demonstrated that CpG-ODNs may affect the cell cycle, apoptosis, and steroidogenesis by targeting the effects of inhibin alpha (1 ~ 32) fragments, supporting the potential role of CpG-ODNs in the development of granulosa cells.
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Hashemi F, Mohajeri N, Radnia F, Zarghami N. Design an Efficient Fluorescent Nanoplatform Carrier for Hydrophobic Drugs Along with Green Carbon Dot: Possible Application in Cancer Cell Image-Guided Drug Therapy. Photodiagnosis Photodyn Ther 2022; 37:102738. [PMID: 35074467 DOI: 10.1016/j.pdpdt.2022.102738] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 12/29/2022]
Abstract
Nowadays, medical science and nanotechnology collaboration has taken novel approaches to advance cancer therapeutic efficacy employing multifunctional nanocarriers with drug delivery and imaging function. In this work, we designed a biocompatible and affordable fluorescence nanocarrier called chitosan (CS)-carbon dot (CD) hybrid nanogel for cell imaging. The green CDs were synthesized using tomato juice through a simple single-step hydrothermal method. Chitosan polymer was used as a carrier for co-delivery CDs and the anti-cancer drug with low solubility, silibinin (Sil), to design the Sil-chitosan carbon dots hybrid nanogels (CCHNs) system. After optimizing the physicochemical properties of nanostructure by DLS, FTIR, FESEM, TEM, and UV-visible techniques, the successful uptake of the fluorescent nanoparticle conjugates into MCF-7 breast cancer cells occurred. Then we embedded CDs in chitosan nanogel. The resultant CCHNs demonstrated optical properties similar to free-CDs, a desirable size distribution (55.22 nm) with a positive surface charge, a suitable loading capacity for Sil (35%), and drug release vulnerable to pH changes. The fluorescent nanocarrier could transfer Sil to MCF-7 cancer cells without remarkable toxicity. The results of the fluorescent microscope indicated that after 4 h, the solid fluorescent signal was received from cells containing CCHNs compared to free CDs and confirmed the ability of hybrid nanogels to high cellular uptake. This study demonstrates a multifunctional nanocarrier containing therapeutic compounds and fluorescent agents that provide cellular imaging to enhance therapeutic efficacy.
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Affiliation(s)
- Fatemeh Hashemi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasrin Mohajeri
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Fatemeh Radnia
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nosratollah Zarghami
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Biochemistry, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey.
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Xiong Y, Xiong M, Li Y, Qian J, Li Y, Han X, Tan J, Luo Y, Wang Q, Qin C. Chitosan oligosaccharide combined with running benefited the immune status of rats. Int Immunopharmacol 2020; 88:106915. [PMID: 32890793 DOI: 10.1016/j.intimp.2020.106915] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/09/2020] [Accepted: 08/16/2020] [Indexed: 11/17/2022]
Abstract
Chitosan oligosaccharide (COS) degraded by chitosan, is an easily accessible and biocompatible natural molecule, which can facilitate the immune system. Running is one of the most effective forms of exercise. Persistence in running can effectively improve the body's resistance against pathogens. However, whether the combination of COS and running could benefit immune status still remains to be elucidated. We used Sprague-Dawley (SD) rats to explore the combinatory effect of COS and running. The organs and blood of the rats were collected after four weeks and the organ body mass index, biochemical and blood routine examination, cytokines, and T cells in the spleen and blood were detected and analyzed. In the group intragastric administration of COS only, the level of blood lactate dehydrogenase was increased, while the blood creatinine, red blood cells, lymphocytes, and serum TNF were decreased. Furthermore, COS combined with running promoted the development of spleen and lung, the level of lymphocytes, T cell and CD8+ T cell ratio in the blood, and serum TNF level. At the same time, the level of lactate dehydrogenase, serum IL-2, and T cell ratio in spleen were decreased. Therefore, our study indicated that COS combined with running could improve the immune status of rats.
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Affiliation(s)
- Youming Xiong
- School of Physical Education, Hubei Engineering University, Xiaogan, Hubei 432000, China; Hubei Collaborative Innovation Center for Biomass Conversion and Utilization, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Meng Xiong
- School of Life Sciences and Biotechnology, Hubei Engineering University, Xiaogan, Hubei 432000, China; Hubei Key Laboratory of Biomass-Resource Chemistry and Environmental Biotechnology, Wuhan University, Wuhan 430072, China
| | - Yangyang Li
- School of Physical Education, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Jin Qian
- School of Physical Education, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Yuwei Li
- School of Life Sciences and Biotechnology, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Xu Han
- School of Physical Education, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Jing Tan
- School of Physical Education, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Yanli Luo
- School of Physical Education, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Qiuxiang Wang
- School of Physical Education, Hubei Engineering University, Xiaogan, Hubei 432000, China
| | - Caiqin Qin
- Hubei Collaborative Innovation Center for Biomass Conversion and Utilization, Hubei Engineering University, Xiaogan, Hubei 432000, China.
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Falahati Z, Mahdavi A, Hassani L. Physicochemical studies on the structural stability of the HIV-1 vaccine candidate recombinant Tat protein. Int J Biol Macromol 2020; 164:403-414. [PMID: 32693138 DOI: 10.1016/j.ijbiomac.2020.07.141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/25/2022]
Abstract
HIV-1 transactivator of transcription protein is one of the most promising AIDS vaccine candidates and plays central roles in the virus life cycle and pathogenesis. Understanding structural properties of vaccine candidate antigens leads to rational design of vaccines which improves their presentation to immune system and facilitates their manufacturing and storage. This study aims to investigate structural properties and stability of one variant of HIV-1 Tat recombinant protein using different spectroscopic, electrophoretic, and microscopic methods. Therefore, after the gene transformation, protein expression was optimized in E. coli cells and the C-terminal His6-tagged protein was purified using Ni-NTA resin. The structural stability of the pure protein was then investigated under different conditions including pH, Zn2+ ions, thermal and chemical stress. Acidic and alkaline pHs affects spectroscopic properties of the vaccine in different ways. The structure unfolding experiment shows relatively poor stability of the zinc-free protein sample compared to the ion-containing one. According to the quenching experiment and also thermal stability study results, the protein has attained more structural compactness in the presence of Zn2+. Secondary structure of the protein is mainly disordered and didn't significantly affect under various conditions. Finally, different degrees of oligomerization and aggregation were found under physiological conditions.
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Affiliation(s)
- Zahra Falahati
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, P.O. Box 451951159, Zanjan, Iran
| | - Atiyeh Mahdavi
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, P.O. Box 451951159, Zanjan, Iran.
| | - Leila Hassani
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, P.O. Box 451951159, Zanjan, Iran
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Alipour S, Mahdavi A. Boosting Tat DNA vaccine with Tat protein stimulates strong cellular and humoral immune responses in mice. Biotechnol Lett 2020; 42:505-517. [PMID: 31974645 DOI: 10.1007/s10529-020-02801-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 12/09/2019] [Indexed: 12/18/2022]
Abstract
The aim of the present study was to evaluate the efficacy of a novel DNA priming-protein boosting regimen in simultaneous enhancing humoral and cellular immunogenicity of the HIV-1-Tat-based candidate vaccines in mice. The experimental BALB/c mice were successfully immunized with the HIV-1-Tat DNA vaccine and boosted with the corresponding protein vaccine over a two-week interval and the elicitation of cellular and humoral immune responses were simultaneously assessed. The results showed that the prime-boost immunization has significantly given rise to lymphocyte proliferation and CTL responses, as well as the levels of both IgG and IgG antibodies compared to the other candidate vaccines. The results of the Th polarization also revealed that the Th1: Th2 indexes in the mice vaccinated with the HIV-1 Tat protein, Tat DNA, and the prime-boost vaccines were 1.03, 1.19, and 1.25, respectively. The results suggest that co-administration of the HIV-1-Tat DNA with the corresponding protein may serve as a potential formulation for enhancing of Tat vaccineinduced immunity and has measurable effects on shaping vaccines' induced Th polarization.
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Affiliation(s)
- Samira Alipour
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), P. O. Box 45195-1159, Zanjan, Iran
| | - Atiyeh Mahdavi
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), P. O. Box 45195-1159, Zanjan, Iran.
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Sadati SF, Jamali A, Abdoli A, Abedi-Valugerdi M, Gholami S, Alipour S, Soleymani S, Kheiri MT, Atyabi F. Simultaneous formulation of influenza vaccine and chitosan nanoparticles within CpG oligodesoxi nucleotides leads to dose-sparing and protects against lethal challenge in the mouse model. Pathog Dis 2018; 76:5089974. [PMID: 30184220 DOI: 10.1093/femspd/fty070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 09/01/2018] [Indexed: 12/22/2022] Open
Abstract
Lack of efficient delivery systems for transporting antigenic molecules to the cytosol of antigen-presenting cells presents a major obstacle for antigen uptake by immune cells. To this end, influenza whole inactivated virus vaccines were formulated with chitosan nanoparticles and CpG oligonucleotide as a biodegradable delivery system and a Th1-specific adjuvant, respectively. Intradermal injections of a single high dose and low dose of formulated candidate vaccines were carried out. Thirty days after injection, cell proliferation assay (MTT), IFN-gamma and IL-4 ELISpot assays were conducted. Sera samples were collected 21 days after immunization to measure IgG1 and IgG2a levels. In addition, the mice challenged with mouse-adopted virus were monitored for weight loss. The results show a significant stimulation of both humoral and cellular immunities; also, weight gain and a decrease in mortality in the mice receiving both dosages of inactivated influenza virus vaccines with CpG and Chitosan coating were observed. Based on the results, it can be concluded that formulation of inactivated influenza virus with CpG and its delivery by chitosan as low-dose can return the same results as with high-dose balanced between cellular and humeral immune responses. This formulation could potentially lead to a significant saving in vaccine production.
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Affiliation(s)
- Seyed Farid Sadati
- Department of Medical Microbiology, Ondokuz Mayis University Medical School, Samsun, Turkey.,Amasya University Research Laboratory Center, Ipekkoy Campus, Amasya, Turkey
| | - Abbas Jamali
- Influenza Unit, Pasteur Institute of Iran, Tehran, Iran
| | - Asghar Abdoli
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | | | - Shima Gholami
- Department of Pharmaceutical Biotechnology, Pasteur Institute of Iran, Tehran, Iran
| | - Samira Alipour
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45195-1159, Iran
| | - Sepehr Soleymani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | | | - Fatemeh Atyabi
- Department of Pharmaceutical Nanotechnology, Tehran University of Medical Sciences, Tehran, Iran
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Subcutaneous administration CpG-ODNs acts as a potent adjuvant for an HIV-1-tat-based vaccine candidate to elicit cellular immunity in BALB/c mice. Biotechnol Lett 2018; 40:527-533. [PMID: 29313255 DOI: 10.1007/s10529-017-2497-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 12/20/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To evaluate the combined effects of CpG oligodeoxynucleotides (CpG-ODNs) adjuvant and subcutaneous injection route on efficacy of a HIV-1-tat DNA vaccine candidate using BALB/c mice as an animal model. RESULTS Evaluation of cellular and humoral immunity of mice injected subcutaneously with HIV-1-tat gene cloned into a pcDNA3.1 vector indicated that significant levels of IFN-γ cytokine secretion (900 pg/ml), lymphocyte proliferation (2.5 stimulation index) and IgG2a (1.45 absorbance 450 nm) production could be achieved. These indicators of stimulated cellular immunity were elicited 2 weeks after the last injection (P < 0.05). CONCLUSIONS Formulation of HIV-1-tat DNA vaccine candidate with CpG-ODNs as an adjuvant while administrated subcutaneously are a promising approach to induce effective cellular immunity responses against HIV-1 infection.
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