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Lu L, Liu N, Fan K, Zhang G, Li C, Yan Y, Liu T, Fu WH. A tetravalent single chain diabody (CD40/HER2) efficiently inhibits tumor proliferation through recruitment of T cells and anti-HER2 functions. Mol Immunol 2019; 109:149-156. [PMID: 30951934 DOI: 10.1016/j.molimm.2019.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 01/05/2023]
Abstract
Our aim was to construct a CD40×HER2 single chain diabody (ScDb) and determine its tumor-specific immune activation and anti-HER2 function. Overlap extension-polymerase chain reaction was applied in the construction of ScDb, and the protein was expressed with the pET28a (+)-Rosetta prokaryotic expression system. Soluble ScDb was purified by a nickel-nitrilotriacetic acid column. Dendritic cells (DC) was stimulated by ScDb and inhibited 4T1 cells proliferation in vitro. In 4T1 tumor mice model, lymphocyte infiltration was prominently detected in ScDb group, Caspase-3 expression was significantly upregulated. ScDb was labeled using quantum dots. Immunofluorescence assay indicated ScDb exhibited high affinity to HER2. T6-17 cells were inhibited by ScDb in vitro. The phosphorylation and expression levels of AKT, ERK were markedly decreased. In T6-17 tumor mice model. Compared to CD40 ScFv, HER2 ScFv and normal saline groups, tumor volume diminished significantly in ScDb group, and tumor cells showed extensive deformation, and pervasive karyopyknosis and karyorrhexis were found. In the present study, we successfully constructed a ScDb fragment and expressed it using a prokaryotic expression system. The in vivo and in vitro experimental results indicated that ScDb could inhibit the proliferation of tumor cells by stimulating the tumor-specific immunoreaction and blocking the HER2-related signaling pathway.
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Affiliation(s)
- Li Lu
- Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, China
| | - Ningbo Liu
- Department of Oncology Surgery, The first hospital of Handan, Hebei province China
| | - Kaihu Fan
- Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, China
| | - Guojing Zhang
- Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, China
| | - Chuan Li
- Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, China
| | - Yongjia Yan
- Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, China
| | - Tong Liu
- Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, China
| | - Wei-Huahua Fu
- Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, China.
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Lankadasari MB, Mukhopadhyay P, Mohammed S, Harikumar KB. TAMing pancreatic cancer: combat with a double edged sword. Mol Cancer 2019; 18:48. [PMID: 30925924 PMCID: PMC6441154 DOI: 10.1186/s12943-019-0966-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/21/2019] [Indexed: 12/11/2022] Open
Abstract
Among all the deadly cancers, pancreatic cancer ranks seventh in mortality. The absence of any grave symptoms coupled with the unavailability of early prognostic and diagnostic markers make the disease incurable in most of the cases. This leads to a late diagnosis, where the disease would have aggravated and thus, incurable. Only around 20% of the cases present the early disease diagnosis. Surgical resection is the prime option available for curative local disease but in the case of advanced cancer, chemotherapy is the standard treatment modality although the patients end up with drug resistance and severe side effects. Desmoplasia plays a very important role in chemoresistance associated with pancreatic cancer and consists of a thick scar tissue around the tumor comprised of different cell populations. The interplay between this heterogenous population in the tumor microenvironment results in sustained tumor growth and metastasis. Accumulating evidences expose the crucial role played by the tumor-associated macrophages in pancreatic cancer and this review briefly presents the origin from their parent lineage and the importance in maintaining tumor hallmarks. Finally we have tried to address their role in imparting chemoresistance and the therapeutic interventions leading to reduced tumor burden.
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Affiliation(s)
- Manendra Babu Lankadasari
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala State, 695014, India.,Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Pramiti Mukhopadhyay
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala State, 695014, India.,Present address: Graduate School of Biomedical Sciences, University of Texas Health Science Center, San Antonio, TX, 78229, USA
| | - Sabira Mohammed
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala State, 695014, India.,Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Kuzhuvelil B Harikumar
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology (RGCB), Thiruvananthapuram, Kerala State, 695014, India.
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Zhang XP, Li YD, Luo LL, Liu YQ, Li Y, Guo C, Li ZD, Xie XR, Song HX, Yang LP, Sun SB, An FY. Astragalus Saponins and Liposome Constitute an Efficacious Adjuvant Formulation for Cancer Vaccines. Cancer Biother Radiopharm 2018; 33:25-31. [PMID: 29466034 DOI: 10.1089/cbr.2017.2369] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Cancer vaccines mostly aim to induce cytotoxic T lymphocytes (CTLs) against tumors. An appropriate adjuvant is of fundamental importance for inducing cellular immune response. Since the antigen in particulate form is substantially more immunogenic than soluble form antigen, it is beneficial to interact with antigen-presenting cells membrane to induce robust CD8+ T cell activation following vaccination. Based on previous research, we designed an adjuvant formulation by combining Astragalus saponins, cholesterol, and liposome to incorporate antigen into a particulate delivery system, so as to enhance cellular immune response. Meanwhile, angiogenesis contributes to tumor growth and metastasis, and basic fibroblast growth factor (bFGF) is involved in tumor angiogenesis. Therefore, using lipo-saponins adjuvant formulation and a human recombinant bFGF antigen protein, we tried to induce bFGF-specific CTL response to inhibit tumor angiogenesis to achieve antitumor activity. After five immunizations, the lipo-saponins/bFGF complex elicited robust antibody response and markedly higher amount of interferon-γ in BALB/c mice, resulting in superior antitumor activities. Decreased microvessel density in CD31 immunohistochemistry and the lysis of vascular endothelial cells by the T lymphocytes from the immunized mice indicated that the immunity inhibited the angiogenesis of tumors and further led to the inhibition of tumors. Our data suggest that the approach to construct adjuvant formulation between liposome and Astragalus saponins appeared highly desirable, and that Astragalus saponins may be utilized as a valuable additive for enhancing the effectiveness of vaccines and stimulating an appropriate immune response that can benefit tumor therapy.
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Affiliation(s)
- Xiao-Ping Zhang
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Ying-Dong Li
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Lu-Lu Luo
- 2 Affiliated Hospital, Gansu University of Chinese Medicine , Lanzhou, China
| | - Yong-Qi Liu
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Yang Li
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Chao Guo
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Zhen-Dong Li
- 3 Department of Ultrasound, The Second Hospital of Lanzhou University , Lanzhou, China
| | - Xiao-Rong Xie
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Hai-Xia Song
- 4 Department of Radiotherapy, Tumor Hospital of Gansu Province , Lanzhou, China
| | - Li-Ping Yang
- 5 Department of Oncology, The First Hospital of Lanzhou University , Lanzhou, China
| | - Shao-Bo Sun
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
| | - Fang-Yu An
- 1 Institute of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine , Lanzhou, China
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The Development of a Novel Therapeutic Strategy to Target Hyaluronan in the Extracellular Matrix of Pancreatic Ductal Adenocarcinoma. Int J Mol Sci 2017; 18:ijms18030600. [PMID: 28282922 PMCID: PMC5372616 DOI: 10.3390/ijms18030600] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/04/2017] [Accepted: 03/06/2017] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal diseases to affect humans, regardless of whether patients receive multimodal therapy (including surgery, radiotherapy, and chemotherapy). This resistance to intervention is currently considered to be caused by the desmoplastic change of the extracellular matrix (ECM) in PDAC tissues, which is characterized by the accumulation of cancer-associated fibroblasts, collagen, proteoglycan, and hyaluronan. Among these ECM components, hyaluronan has attracted interest because various studies have indicated that hyaluronan-rich PDAC is correlated with the progressive properties of cancer cells, both in experimental and clinical settings. Hence, the reduction of hyaluronan in cancer tissue may represent a novel therapeutic approach for PDAC. 4-methylumbelliferone (4-MU) is a derivative of coumarin that was reported to suppress the synthesis of hyaluronan in cultured human skin fibroblasts in 1995. As an additional study, our group firstly reported that 4-MU reduced the hyaluronan synthesis of mouse melanoma cells and exerted anti-cancer activity. Subsequently, we have showed that 4-MU inhibited liver metastasis in mice inoculated with human pancreatic cancer cells. Thereafter, 4-MU has been accepted as an effective agent for hyaluronan research and is expected to have clinical applications. This review provides an overview of the interaction between PDAC and hyaluronan, the properties of 4-MU as a suppressor of the synthesis of hyaluronan, and the perspectives of PDAC treatment targeting hyaluronan.
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