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Shao L, Srivastava R, Delgoffe GM, Thorne SH, Sarkar SN. An IRF2-Expressing Oncolytic Virus Changes the Susceptibility of Tumor Cells to Antitumor T Cells and Promotes Tumor Clearance. Cancer Immunol Res 2024; 12:779-790. [PMID: 38517470 PMCID: PMC11150089 DOI: 10.1158/2326-6066.cir-23-0573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/26/2023] [Accepted: 03/20/2024] [Indexed: 03/23/2024]
Abstract
IFN regulatory factor 1 (IRF1) can promote antitumor immunity. However, we have shown previously that in the tumor cell, IRF1 can promote tumor growth, and IRF1-deficient tumor cells exhibit severely restricted tumor growth in several syngeneic mouse tumor models. Here, we investigate the potential of functionally modulating IRF1 to reduce tumor progression and prolong survival. Using inducible IRF1 expression, we established that it is possible to regulate IRF1 expression to modulate tumor progression in established B16-F10 tumors. Expression of IRF2, which is a functional antagonist of IRF1, downregulated IFNγ-induced expression of inhibitory ligands, upregulated MHC-related molecules, and slowed tumor growth and extended survival. We characterized the functional domain(s) of IRF2 needed for this antitumor activity, showing that a full-length IRF2 was required for its antitumor functions. Finally, using an oncolytic vaccinia virus as a delivery platform, we showed that IRF2-expressing vaccinia virus suppressed tumor progression and prolonged survival in multiple tumor models. These results suggest the potency of targeting IRF1 and using IRF2 to modulate immunotherapy.
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Affiliation(s)
- Lulu Shao
- Cancer Virology Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Rashmi Srivastava
- Cancer Virology Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Greg M. Delgoffe
- Tumor Microenvironment Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA
- Department of Immunology, University of Pittsburgh School of Medicine
| | - Stephen H. Thorne
- Cancer Virology Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA
- KaliVir Immunotherapeutics, Inc., Pittsburgh, PA
| | - Saumendra N. Sarkar
- Cancer Virology Program, University of Pittsburgh Cancer Institute, Pittsburgh, PA
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA
- Department of Immunology, University of Pittsburgh School of Medicine
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Seo SY, Ju WS, Kim K, Kim J, Yu JO, Ryu JS, Kim JS, Lee HA, Koo DB, Choo YK. Quercetin Induces Mitochondrial Apoptosis and Downregulates Ganglioside GD3 Expression in Melanoma Cells. Int J Mol Sci 2024; 25:5146. [PMID: 38791186 PMCID: PMC11121576 DOI: 10.3390/ijms25105146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/03/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Malignant melanoma represents a form of skin cancer characterized by a bleak prognosis and heightened resistance to traditional therapies. Quercetin has demonstrated notable anti-carcinogenic, anti-inflammatory, anti-oxidant, and pharmacological effects across various cancer types. However, the intricate relationship between quercetin's anti-cancer properties and ganglioside expression in melanoma remains incompletely understood. In this study, quercetin manifests specific anti-proliferative, anti-migratory, and cell-cycle arrest effects, inducing mitochondrial dysfunction and apoptosis in two melanoma cancer cell lines. This positions quercetin as a promising candidate for treating malignant melanoma. Moreover, our investigation indicates that quercetin significantly reduces the expression levels of ganglioside GD3 and its synthetic enzyme. Notably, this reduction is achieved through the inhibition of the FAK/paxillin/Akt signaling pathway, which plays a crucial role in cancer development. Taken together, our findings suggest that quercetin may be a potent anti-cancer drug candidate for the treatment of malignant melanoma.
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Affiliation(s)
- Sang Young Seo
- Department of Biological Science, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea; (S.Y.S.); (W.S.J.); (K.K.); (J.K.); (J.O.Y.)
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, 1500 Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun 55365, Jeonbuk, Republic of Korea
| | - Won Seok Ju
- Department of Biological Science, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea; (S.Y.S.); (W.S.J.); (K.K.); (J.K.); (J.O.Y.)
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, 1500 Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun 55365, Jeonbuk, Republic of Korea
| | - Kyongtae Kim
- Department of Biological Science, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea; (S.Y.S.); (W.S.J.); (K.K.); (J.K.); (J.O.Y.)
| | - Juhwan Kim
- Department of Biological Science, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea; (S.Y.S.); (W.S.J.); (K.K.); (J.K.); (J.O.Y.)
| | - Jin Ok Yu
- Department of Biological Science, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea; (S.Y.S.); (W.S.J.); (K.K.); (J.K.); (J.O.Y.)
| | - Jae-Sung Ryu
- Division of Biodrug Evaluation, New Drug Development Center, Osong Medical Innovation Foundation (K-Bio Health), Cheongju 28160, Chungbuk, Republic of Korea;
| | - Ji-Su Kim
- Primate Resources Center (PRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup 56216, Jeonbuk, Republic of Korea;
| | - Hyun-A Lee
- Center for Animal Resources Development, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea;
| | - Deog-Bon Koo
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongsan 38453, Gyeongbuk, Republic of Korea;
| | - Young-Kug Choo
- Department of Biological Science, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea; (S.Y.S.); (W.S.J.); (K.K.); (J.K.); (J.O.Y.)
- Institute for Glycoscience, Wonkwang University, Iksan 54538, Jeonbuk, Republic of Korea
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Lin P, Qian J, Huang CC, Xu WM, Wang YY, Gao ZR, Zheng SQ, Wang P, Jia DQ, Feng Q, Yang JL. RGD-p21Ras-scFv expressed prokaryotically on a pilot scale inhibits ras-driven colorectal cancer growth by blocking p21Ras-GTP. BMC Cancer 2024; 24:71. [PMID: 38216883 PMCID: PMC10787443 DOI: 10.1186/s12885-023-11686-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 11/28/2023] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Ras gene mutation and/or overexpression are drivers in the progression of cancers, including colorectal cancer. Blocking the Ras signaling has become a significant strategy for cancer therapy. Previously, we constructed a recombinant scFv, RGD-p21Ras-scFv by linking RGD membrane-penetrating peptide gene with the anti-p21Ras scFv gene. Here, we expressed prokaryotically RGD-p21Ras-scFv on a pilot scale, then investigated the anti-tumor effect and the mechanism of blocking Ras signaling. METHODS The E. coli bacteria which could highly express RGD-p21Ras-scFv was screened and grown in 100 L fermentation tank to produce RGD-p21Ras-scFv on optimized induced expression conditions. The scFv was purified from E. coli bacteria using His Ni-NTA column. ELISA was adopted to test the immunoreactivity of RGD-p21Ras-scFv against p21Ras proteins, and the IC50 of RGD-p21Ras-scFv was analyzed by CCK-8. Immunofluorescence colocalization and pull-down assays were used to determine the localization and binding between RGD-p21Ras-scFv and p21Ras. The interaction forces between RGD-p21Ras-scFv and p21Ras after binding were analyzed by molecular docking, and the stability after binding was determined by molecular dynamics simulations. p21Ras-GTP interaction was detected by Ras pull-down. Changes in the MEK-ERK /PI3K-AKT signaling paths downstream of Ras were detected by WB assays. The anti-tumor activity of RGD-p21Ras-scFv was investigated by nude mouse xenograft models. RESULTS The technique of RGD-p21Ras-scFv expression on a pilot scale was established. The wet weight of the harvested bacteria was 31.064 g/L, and 31.6 mg RGD-p21Ras-scFv was obtained from 1 L of bacterial medium. The purity of the recombinant antibody was above 85%, we found that the prepared on a pilot scale RGD-p21Ras-scFv could penetrate the cell membrane of colon cancer cells and bind to p21Ras, then led to reduce of p21Ras-GTP (active p21Ras). The phosphorylation of downstream effectors MEK-ERK /PI3K-AKT was downregulated. In vivo antitumor activity assays showed that the RGD-p21Ras-scFv inhibited the proliferation of colorectal cancer cell lines. CONCLUSION RGD-p21Ras-scFv prokaryotic expressed on pilot-scale could inhibited Ras-driven colorectal cancer growth by partially blocking p21Ras-GTP and might be able to be a hidden therapeutic antibody for treating RAS-driven tumors.
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Affiliation(s)
- Peng Lin
- Medical school, Kunming University of Science and Technology, Kunming, 650500, P.R. China
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
| | - Jing Qian
- Medical school, Kunming University of Science and Technology, Kunming, 650500, P.R. China
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
- Faculty of Life science and Technology, Kunming University of Science and Technology, Kunming, 650500, P.R. China
| | - Cheng-Cheng Huang
- Medical school, Kunming University of Science and Technology, Kunming, 650500, P.R. China
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
| | - Wen-Mang Xu
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
| | - Yuan-Yuan Wang
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
| | - Zi-Ran Gao
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
| | - Shi-Qi Zheng
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
- The Graduate School, Kunming Medical University, Kunming, 650500, P.R. China
| | - Peng Wang
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
| | - Da-Qi Jia
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China
- The Graduate School, Kunming Medical University, Kunming, 650500, P.R. China
| | - Qiang Feng
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China.
| | - Ju-Lun Yang
- Department of Pathology, 920th Hospital of the Joint Logistics Support Force of PLA, 212 Daguan Rd, Kunming, 650032, P.R. China.
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Tripathi AK, Singh J, Trivedi R, Ranade P. Shaping the Future of Antimicrobial Therapy: Harnessing the Power of Antimicrobial Peptides in Biomedical Applications. J Funct Biomater 2023; 14:539. [PMID: 37998108 PMCID: PMC10672284 DOI: 10.3390/jfb14110539] [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: 09/25/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023] Open
Abstract
Antimicrobial peptides (AMPs) have emerged as a promising class of bioactive molecules with the potential to combat infections associated with medical implants and biomaterials. This review article aims to provide a comprehensive analysis of the role of antimicrobial peptides in medical implants and biomaterials, along with their diverse clinical applications. The incorporation of AMPs into various medical implants and biomaterials has shown immense potential in mitigating biofilm formation and preventing implant-related infections. We review the latest advancements in biomedical sciences and discuss the AMPs that were immobilized successfully to enhance their efficacy and stability within the implant environment. We also highlight successful examples of AMP coatings for the treatment of surgical site infections (SSIs), contact lenses, dental applications, AMP-incorporated bone grafts, urinary tract infections (UTIs), medical implants, etc. Additionally, we discuss the potential challenges and prospects of AMPs in medical implants, such as effectiveness, instability and implant-related complications. We also discuss strategies that can be employed to overcome the limitations of AMP-coated biomaterials for prolonged longevity in clinical settings.
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Affiliation(s)
- Amit Kumar Tripathi
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (R.T.); (P.R.)
| | - Jyotsana Singh
- Hematopoietic Biology and Malignancy, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Rucha Trivedi
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (R.T.); (P.R.)
| | - Payal Ranade
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (R.T.); (P.R.)
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