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Yu J, Zhang Y, Xu M, Jiang D, Liu W, Jin H, Chen P, Xu J, Zhang L. Innovative gelatin-based micelles with AS1411 aptamer targeting and reduction responsiveness for doxorubicin delivery in tumor therapy. Biomed Pharmacother 2024; 174:116446. [PMID: 38513599 DOI: 10.1016/j.biopha.2024.116446] [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] [Received: 12/22/2023] [Revised: 03/03/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024] Open
Abstract
Herein, we constructed innovative reduction-sensitive and targeted gelatin-based micelles for doxorubicin (DOX) delivery in tumor therapy. AS1411 aptamer-modified gelatin-ss-tocopherol succinate (AGSST) and the control GSST without AS1411 modification were synthesized and characterized. Antitumor drug DOX-containing AGSST (AGSST-D) and GSST-D nanoparticles were prepared, and their shapes were almost spherical. Reduction-responsive characteristics of DOX release in vitro were revealed in AGSST-D and GSST-D. Compared with non-targeted GSST-D, AGSST-D demonstrated better intracellular uptake and stronger cytotoxicity against nucleolin-overexpressed A549 cells. Importantly, AGSST-D micelles showed more effective killing activity in A549-bearing mice than GSST-D and DOX⋅HCl. It was revealed that AGSST-D micelles had no obvious systemic toxicity. Overall, AGSST micelles would have the potential to be an effective drug carrier for targeted tumor therapy.
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Affiliation(s)
- Jingmou Yu
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Huzhou, Zhejiang 313000, China; Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L3G1, Canada; School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, Jiangxi 332000, China
| | - Yifei Zhang
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, Jiangxi 332000, China
| | - Meilin Xu
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, Jiangxi 332000, China
| | - Dengzhao Jiang
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, Jiangxi 332000, China
| | - Wenbo Liu
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, Jiangxi 332000, China
| | - Hongguang Jin
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, Jiangxi 332000, China
| | - Pu Chen
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L3G1, Canada
| | - Jing Xu
- Affiliated Hospital of Jiujiang University, Jiujiang, Jiangxi 332000, China.
| | - Lei Zhang
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L3G1, Canada.
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Yu J, Xu J, Jiang R, Yuan Q, Ding Y, Ren J, Jiang D, Wang Y, Wang L, Chen P, Zhang L. Versatile chondroitin sulfate-based nanoplatform for chemo-photodynamic therapy against triple-negative breast cancer. Int J Biol Macromol 2024; 265:130709. [PMID: 38462120 DOI: 10.1016/j.ijbiomac.2024.130709] [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] [Received: 12/20/2023] [Revised: 02/12/2024] [Accepted: 03/05/2024] [Indexed: 03/12/2024]
Abstract
Versatile nanoplatform equipped with chemo-photodynamic therapeutic attributes play an important role in improving the effectiveness of tumor treatments. Herein, we developed multifunctional nanoparticles based on chondroitin sulfate A (CSA) for the targeted delivery of chlorin e6 (Ce6) and doxorubicin (DOX), in a combined chemo-photodynamic therapy against triple-negative breast cancer. CSA was chosen for its hydrophilic properties and its affinity to CD44 receptor-overexpressed tumor cells. The CSA-ss-Ce6 (CSSC) conjugate was synthesized utilizing a disulfide linker. Subsequently, DOX-loaded CSSC (CSSC-D) nanoparticles were fabricated, showcasing a nearly spherical shape with an average particle size of 267 nm. In the CSSC-D nanoparticles, the chemically attached Ce6 constituted 1.53 %, while the physically encapsulated DOX accounted for 8.11 %. Both CSSC-D and CSSC nanoparticles demonstrated a reduction-sensitive release of DOX or Ce6 in vitro. Under near-infrared (NIR) laser irradiation, CSSC-D showed the enhanced generation of reactive oxygen species (ROS), improving cytotoxic effects against triple-negative breast cancer 4T1 and MDA-MB-231 cells. Remarkably, the CSSC-D with NIR exhibited the most potent tumor growth inhibition in comparison to other groups in the 4T1-bearing Balb/c mice model. Overall, this CSSC-D nanoplatform shows significant promise as a powerful tool for a synergetic approach in chemo-photodynamic therapy in triple-negative breast cancer.
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Affiliation(s)
- Jingmou Yu
- Huzhou Key Laboratory of Medical and Environmental Applications Technologies, School of Life Sciences, Huzhou University, Huzhou 313000, China; Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L3G1, Canada; School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang 332000, China
| | - Jing Xu
- Affiliated Hospital of Jiujiang University, Jiujiang 332000, China
| | - Renliang Jiang
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang 332000, China; Affiliated Hospital of Jiujiang University, Jiujiang 332000, China
| | - Qinglan Yuan
- University Hospital, Jiujiang University, Jiujiang 332005, China
| | - Yuanyuan Ding
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang 332000, China
| | - Jing Ren
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang 332000, China
| | - Dengzhao Jiang
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang 332000, China
| | - Yiqiu Wang
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang 332000, China
| | - Liangliang Wang
- Affiliated Hospital of Jiujiang University, Jiujiang 332000, China
| | - Pu Chen
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L3G1, Canada.
| | - Lei Zhang
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L3G1, Canada.
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Iranpour S, Bahrami AR, Dayyani M, Saljooghi AS, Matin MM. A potent multifunctional ZIF-8 nanoplatform developed for colorectal cancer therapy by triple-delivery of chemo/radio/targeted therapy agents. J Mater Chem B 2024; 12:1096-1114. [PMID: 38229578 DOI: 10.1039/d3tb02571c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
BACKGROUND Multimodal cancer therapy has garnered significant interest due to its ability to target tumor cells from various perspectives. The advancement of novel nano-delivery platforms represents a promising approach for improving treatment effectiveness while minimizing detrimental effects on healthy tissues. METHODS This study aimed to develop a multifunctional nano-delivery system capable of simultaneously delivering an anti-cancer drug, a radiosensitizer agent, and a targeting moiety (three-in-one) for the triple combination therapy of colorectal cancer (CRC). This unique nano-platform, called Apt-PEG-DOX/ZIF-8@GQD, encapsulated both doxorubicin (DOX) and graphene quantum dots (GQDs) within the zeolitic imidazolate framework-8 (ZIF-8). To enhance the safety and anti-cancer potential of the platform, heterobifunctional polyethylene glycol (PEG) and an epithelial cell adhesion molecule (EpCAM) aptamer were conjugated with the system, resulting in the formation of targeted Apt-PEG-DOX/ZIF-8@GQD NPs. The physical and chemical characteristics of Apt-PEG-DOX/ZIF-8@GQD were thoroughly examined, and its therapeutic efficacy was evaluated in combination with radiotherapy (RT) against both EpCAM-positive HT-29 and EpCAM-negative CHO cells. Furthermore, the potential of Apt-PEG-DOX/ZIF-8@GQD as a tumor-specific, radio-enhancing, non-toxic, and controllable delivery system for in vivo cancer treatment was explored using immunocompromised C57BL/6 mice bearing human HT-29 tumors. RESULTS The large surface area of ZIF-8 (1013 m2 g-1) enabled successful loading of DOX with an encapsulation efficiency of approximately ∼90%. The synthesis of Apt-PEG-DOX/ZIF-8@GQD resulted in uniform particles with an average diameter of 100 nm. This targeted platform exhibited rapid decomposition under acidic conditions, facilitating an on-demand release of DOX after endosomal escape. In vitro experiments revealed that the biocompatible nano-platform induced selective toxicity in HT-29 cells by enhancing X-ray absorption. Moreover, in vivo experiments demonstrated that the therapeutic efficacy of Apt-PEG-ZIF-8/DOX@GQD against HT-29 tumors was enhanced through the synergistic effects of chemotherapy, radiotherapy, and targeted therapy, with minimal side effects. CONCLUSION The combination of Apt-PEG-DOX/ZIF-8@GQD with RT as a multimodal therapy approach demonstrated promising potential for the targeted treatment of CRC and enhancing therapeutic effectiveness. The co-delivery of DOX and GQD using this nano-platform holds great promise for improving the outcome of CRC treatment.
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Affiliation(s)
- Sonia Iranpour
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ahmad Reza Bahrami
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mahdieh Dayyani
- Radiation Oncology Department, Reza Radiotherapy and Oncology Center, Mashhad, Iran
| | - Amir Sh Saljooghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
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Ali N, Wolf C, Kanchan S, Veerabhadraiah SR, Bond L, Turner MW, Jorcyk CL, Hampikian G. 9S1R nullomer peptide induces mitochondrial pathology, metabolic suppression, and enhanced immune cell infiltration, in triple-negative breast cancer mouse model. Biomed Pharmacother 2024; 170:115997. [PMID: 38118350 PMCID: PMC10872342 DOI: 10.1016/j.biopha.2023.115997] [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: 09/30/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/22/2023] Open
Abstract
Nullomers are the shortest strings of absent amino acid (aa) sequences in a species or group of species. Primes are those nullomers that have not been detected in the genome of any species. 9S1R is a 5-aa peptide prime sequence attached to 5-arginine aa, used to treat triple negative breast cancer (TNBC) in an in vivo mouse model. This unique peptide, administered with a trehalose carrier (9S1R-NulloPT), offers enhanced solubility and exhibits distinct anti-cancer effects against TNBC. In our study, we investigated the effect of 9S1R-NulloPT on tumor growth, metabolism, metastatic burden, tumor immune-microenvironment (TME), and transcriptome of aggressive mouse TNBC tumors. Notably, treated mice had smaller tumors in the initial phase of the treatment, as compared to untreated control, and diminished in vivo and ex vivo bioluminescence at later-stages - indicative of metabolically quiescent, dying tumors. The treatment also caused changes in TME with increased infiltration of immune cells and altered tumor transcriptome, with 365 upregulated genes and 710 downregulated genes. Consistent with in vitro data, downregulated genes were enriched in cellular metabolic processes (179), specifically mitochondrial TCA cycle/oxidative phosphorylation (44), and translation machinery/ribosome biogenesis (45). The upregulated genes were associated with the developmental (13), ECM organization (12) and focal adhesion pathways (7). In conclusion, our study demonstrates that 9S1R-NulloPT effectively reduced tumor growth during its initial phase, altering the TME and tumor transcriptome. The treatment induced mitochondrial pathology which led to a metabolic deceleration in tumors, aligning with in vitro observations.
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Affiliation(s)
- Nilufar Ali
- Department of Biological Sciences, Boise State University, Boise, ID, USA.
| | - Cody Wolf
- Department of Biological Sciences, Boise State University, Boise, ID, USA; Biomolecular Sciences Graduate Programs, Boise State University, Boise, ID, USA
| | - Swarna Kanchan
- Department of Biological Sciences, Boise State University, Boise, ID, USA; Department of Biomedical Sciences, Jaon C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Shivakumar R Veerabhadraiah
- Department of Orthopaedics, University of Utah, Salt Lake City, UT, USA; Biomolecular Sciences Graduate Programs, Boise State University, Boise, ID, USA
| | - Laura Bond
- Center of Biomedical Research Excellence in Matrix Biology, Boise State University, Boise, ID, USA
| | - Matthew W Turner
- Biomolecular Research Center, Boise State University, Boise, ID, USA; Biomolecular Sciences Graduate Programs, Boise State University, Boise, ID, USA
| | - Cheryl L Jorcyk
- Department of Biological Sciences, Boise State University, Boise, ID, USA; Biomolecular Research Center, Boise State University, Boise, ID, USA; Biomolecular Sciences Graduate Programs, Boise State University, Boise, ID, USA
| | - Greg Hampikian
- Department of Biological Sciences, Boise State University, Boise, ID, USA.
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Xie X, Wang K, Zeng J, Xu MY, Qu XH, Xiang ZB, Tou FF, Huang S, Han XJ. A novel polymer enabled by polymerized small molecule strategy for tumor photothermal and photodynamic therapy. J Nanobiotechnology 2023; 21:497. [PMID: 38124097 PMCID: PMC10734082 DOI: 10.1186/s12951-023-02272-9] [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: 10/08/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023] Open
Abstract
Photothermal therapy (PTT) and photodynamic therapy (PDT) are effective method for tumor treatment. However, the limited variety and quantity of photothermal agents (PTAs) and photosensitizer (PSs) are still major challenges. Moreover, the cell apoptosis mechanism induced by PDT and PTT is still elusive. A fused-ring small molecule acceptor-donor acceptor' donor-acceptor (A-DA'D-A) type of Y5 (Scheme 1) has a narrow band-gap and strong light absorption. Herein, we used Y5 to polymerize with thiophene unit to obtain polymer PYT based on polymerized small molecule strategy, and PYT nanoparticles (PYT NPs) was prepared via one-step nanoprecipitation strategy with DSPE-PEG2000. PYT NPs had excellent biocompatibility, good photostability, high photothermal conversion efficiency (67%) and reactive oxygen species (ROS) production capacity under 808 nm laser irradiation (PYT NPs + NIR). In vitro and in vivo experiments revealed that PYT NPs + NIR had the ability to completely ablate tumor cells. It was demonstrated that cell apoptosis induced by PYT NPs + NIR was closely related to mitochondrial damage. This study provides valuable guidance for constructing high-performance organic PTAs and PSs for tumor treatment. Scheme 1 PYT enabled by polymerized small molecule strategy for tumor photothermal and photodynamic therapy.
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Affiliation(s)
- Xin Xie
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
- Institute of Geriatrics, Jiangxi Provincial People's Hospital &, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Ke Wang
- Department of Clinical Laboratory, Jiangxi Provincial Children's Hospital, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Jie Zeng
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
- Institute of Geriatrics, Jiangxi Provincial People's Hospital &, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Miao-Yan Xu
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
- Institute of Geriatrics, Jiangxi Provincial People's Hospital &, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Xin-Hui Qu
- The Second Department of Neurology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Zheng-Bin Xiang
- The Second Department of Neurology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Fang-Fang Tou
- Department of Oncology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Shaorong Huang
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China.
- Institute of Geriatrics, Jiangxi Provincial People's Hospital &, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China.
| | - Xiao-Jian Han
- Institute of Geriatrics, Jiangxi Provincial People's Hospital &, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China.
- The Second Department of Neurology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, 330006, Jiangxi, People's Republic of China.
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Zeng W, Luo Y, Gan D, Zhang Y, Deng H, Liu G. Advances in Doxorubicin-based nano-drug delivery system in triple negative breast cancer. Front Bioeng Biotechnol 2023; 11:1271420. [PMID: 38047286 PMCID: PMC10693343 DOI: 10.3389/fbioe.2023.1271420] [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: 08/03/2023] [Accepted: 10/30/2023] [Indexed: 12/05/2023] Open
Abstract
Triple positive breast cancer (TPBC) is one of the most aggressive breast cancer. Due to the unique cell phenotype, aggressiveness, metastatic potential and lack of receptors or targets, chemotherapy is the choice of treatment for TNBC. Doxorubicin (DOX), one of the representative agents of anthracycline chemotherapy, has better efficacy in patients with metastatic TNBC (mTNBC). DOX in anthracycline-based chemotherapy regimens have higher response rates. Nano-drug delivery systems possess unique targeting and ability of co-load, deliver and release chemotherapeutic drugs, active gene fragments and immune enhancing factors to effectively inhibit or kill tumor cells. Therefore, advances in nano-drug delivery systems for DOX therapy have attracted a considerable amount of attention from researchers. In this article, we have reviewed the progress of nano-drug delivery systems (e.g., Nanoparticles, Liposomes, Micelles, Nanogels, Dendrimers, Exosomes, etc.) applied to DOX in the treatment of TNBC. We also summarize the current progress of clinical trials of DOX combined with immune checkpoint inhibitors (ICIS) for the treatment of TNBC. The merits, demerits and future development of nanomedicine delivery systems in the treatment of TNBC are also envisioned, with the aim of providing a new class of safe and efficient thoughts for the treatment of TNBC.
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Affiliation(s)
- Weiwei Zeng
- Department of Pharmacy, Shenzhen Longgang Second People’s Hospital, Shenzhen, Guangdong, China
| | - Yuning Luo
- Department of Pharmacy, Shenzhen Longgang Second People’s Hospital, Shenzhen, Guangdong, China
| | - Dali Gan
- Department of Pharmacy, Shenzhen Longgang Second People’s Hospital, Shenzhen, Guangdong, China
| | - Yaofeng Zhang
- Department of Pharmacy, Shenzhen Longgang Second People’s Hospital, Shenzhen, Guangdong, China
| | - Huan Deng
- Department of Pharmacy, Shenzhen Longgang Second People’s Hospital, Shenzhen, Guangdong, China
| | - Guohui Liu
- Shenzhen Longhua Maternity and Child Healthcare Hospital, Shenzhen, Guangdong, China
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Liang L, Ren J, Dai J, Liu J, Zhang L, Li D, Yang C, Yu J. Layered double hydroxides - poloxamer 188 nanocomposites based on exfoliation reassembling for improved cellular uptake and controlled delivery of methotrexate. Pharm Dev Technol 2023; 28:743-754. [PMID: 37577952 DOI: 10.1080/10837450.2023.2246555] [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] [Received: 03/04/2023] [Revised: 07/18/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023]
Abstract
Exploitation of advanced methotrexate (MTX) delivery with nanocomposites has important clinical application value. Poloxamer 188 micelle and layered double hydroxide loaded with MTX (LDH-MTX) by exfoliation reassembling were used to prepare LDH-MTX-poloxamer 188 nanocomposites with good dispersibility and efficient cellular uptake for controlled drug delivery. The LDH-MTX-poloxamer 188 nanocomposites with sphere-like morphology, of which the average hydrodynamic diameter was <100 nm, were shown to have better dispersion state than naked LDH-MTX. Importantly, the LDH-MTX-poloxamer 188 nanocomposites could achieve significant sustained drug release and have obvious pH dependent responsive release ability. In addition, these nanocomposites also exhibited long-term and excellent in vitro antitumor efficacy as opposed to pure MTX or LDH-MTX as evident from cell viability. More interestingly, compared to pure FITC used to simulate MTX, LDH nanocomposites labeled with FITC were considered to have better cell adhesion through cell uptake. Therefore, the studied nanocomposites of LDH-MTX-poloxamer 188 can be further used as a new advanced MTX delivery nanovehicles with desired properties in future therapeutic aspects.
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Affiliation(s)
- Liang Liang
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Jin Ren
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, China
| | - Jun Dai
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Jianyun Liu
- Key Laboratory of Jiangxi Province for the Systems Biomedicine, Jiujiang University, Jiujiang, China
| | - Lifang Zhang
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, China
| | - Donglin Li
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Chao Yang
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Jingmou Yu
- Key Laboratory of Jiangxi Province for the Systems Biomedicine, Jiujiang University, Jiujiang, China
- School of Life Sciences, Huzhou University, Huzhou, Zhejiang, China
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8
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Ali N, Wolf C, Kanchan S, Veerabhadraiah SR, Bond L, Turner MW, Jorcyk CL, Hampikian G. Nullomer peptide increases immune cell infiltration and reduces tumor metabolism in triple negative breast cancer mouse model. RESEARCH SQUARE 2023:rs.3.rs-3097552. [PMID: 37461536 PMCID: PMC10350184 DOI: 10.21203/rs.3.rs-3097552/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Background Nullomers are the shortest strings of absent amino acid (aa) sequences in a species or group of species. Primes are those nullomers that have not been detected in the genome of any species. 9S1R is a 5-aa peptide derived from a prime sequence that is tagged with 5 arginine aa, used to treat triple negative breast cancer (TNBC) in an in vivo TNBC mouse model. 9S1R is administered in trehalose (9S1R-NulloPT), which enhances solubility and exhibits some independent effects against tumor growth and is thus an important component in the drug preparation. Method We examined the effect of 9S1R-NulloPT on tumor growth, metabolism, metastatic burden, necrosis, tumor immune microenvironment, and the transcriptome of aggressive mouse TNBC tumors. Results The peptide-treated mice had smaller tumors in the initial phase of the treatment, as compared to the untreated control, and reduced in vivo bioluminescence at later stages, which is indicative of metabolically inactive tumors. A decrease in ex vivo bioluminescence was also observed in the excised tumors of treated mice, but not in the secondary metastasis in the lungs. The treatment also caused changes in tumor immune microenvironment with increased infiltration of immune cells and margin inflammation. The treatment upregulated 365 genes and downregulated 710 genes in tumors compared to the untreated group. Consistent with in vitro findings in breast cancer cell lines, downregulated genes in the treated TNBC tumors include Cellular Metabolic Process Related genes (179), specifically mitochondrial genes associated with TCA cycle/oxidative phosphorylation (44), and translation machinery/ribosome biogenesis genes (45). Among upregulated genes, the Developmental Pathway (13), ECM Organization (12) and Focal Adhesion Related Pathways (7) were noteworthy. We also present data from a pilot study using a bilateral BC mouse model, which supports our findings. Conclusion In conclusion, although 9S1R-NulloPT was moderate at reducing the tumor volume, it altered the tumor immune microenvironment as well as the tumor transcriptome, rendering tumors metabolically less active by downregulating the mitochondrial function and ribosome biogenesis. This corroborates previously published in vitro findings.
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