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Xiong X, Huo Q, Li K, Cui C, Chang C, Park C, Ku B, Hong CS, Lim H, Pandya PH, Saadatzadeh MR, Bijangi-Vishehsaraei K, Lin CC, Kacena MA, Pollok KE, Chen A, Liu J, Thompson WR, Li XL, Li BY, Yokota H. Enhancing anti-tumor potential: low-intensity vibration suppresses osteosarcoma progression and augments MSCs' tumor-suppressive abilities. Theranostics 2024; 14:1430-1449. [PMID: 38389836 PMCID: PMC10879868 DOI: 10.7150/thno.90945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/24/2024] [Indexed: 02/24/2024] Open
Abstract
Rationale: Osteosarcoma (OS), a common malignant bone tumor, calls for the investigation of novel treatment strategies. Low-intensity vibration (LIV) presents itself as a promising option, given its potential to enhance bone health and decrease cancer susceptibility. This research delves into the effects of LIV on OS cells and mesenchymal stem cells (MSCs), with a primary focus on generating induced tumor-suppressing cells (iTSCs) and tumor-suppressive conditioned medium (CM). Methods: To ascertain the influence of vibration frequency, we employed numerical simulations and conducted experiments to determine the most effective LIV conditions. Subsequently, we generated iTSCs and CM through LIV exposure and assessed the impact of CM on OS cells. We also explored the underlying mechanisms of the tumor-suppressive effects of LIV-treated MSC CM, with a specific focus on vinculin (VCL). We employed cytokine array, RNA sequencing, and Western blot techniques to investigate alterations in cytokine profiles, transcriptomes, and tumor suppressor proteins. Results: Numerical simulations validated LIV frequencies within the 10-100 Hz range. LIV induced notable morphological changes in OS cells and MSCs, confirming its dual role in inhibiting OS cell progression and promoting MSC conversion into iTSCs. Upregulated VCL expression enhanced MSC responsiveness to LIV, significantly bolstering CM's efficacy. Notably, we identified tumor suppressor proteins in LIV-treated CM, including procollagen C endopeptidase enhancer (PCOLCE), histone H4 (H4), peptidylprolyl isomerase B (PPIB), and aldolase A (ALDOA). Consistently, cytokine levels decreased significantly in LIV-treated mouse femurs, and oncogenic transcript levels were downregulated in LIV-treated OS cells. Moreover, our study demonstrated that combining LIV-treated MSC CM with chemotherapy drugs yielded additive anti-tumor effects. Conclusions: LIV effectively impeded the progression of OS cells and facilitated the transformation of MSCs into iTSCs. Notably, iTSC-derived CM demonstrated robust anti-tumor properties and the augmentation of MSC responsiveness to LIV via VCL. Furthermore, the enrichment of tumor suppressor proteins within LIV-treated MSC CM and the reduction of cytokines within LIV-treated isolated bone underscore the pivotal tumor-suppressive role of LIV within the bone tumor microenvironment.
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Affiliation(s)
- Xue Xiong
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Qingji Huo
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Kexin Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Changpeng Cui
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Chunyi Chang
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Charles Park
- Department of Physics, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - BonHeon Ku
- Department of Mechanical Engineering, Pusan National University, Busan 46241, Korea
| | - Chin-Suk Hong
- Department of Mechanical Engineering, Ulsan College, Ulsan 44022, Korea
| | - HeeChang Lim
- Department of Mechanical Engineering, Pusan National University, Busan 46241, Korea
| | - Pankita H. Pandya
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine; Indianapolis, IN 46202, USA
- Department of Pediatrics, Indiana University School of Medicine; Indianapolis, IN 46202, USA
| | - M. Reza Saadatzadeh
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine; Indianapolis, IN 46202, USA
- Department of Pediatrics, Indiana University School of Medicine; Indianapolis, IN 46202, USA
| | | | - Chien-Chi Lin
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine; Indianapolis, IN 46202, USA
| | - Melissa A. Kacena
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine; Indianapolis, IN 46202, USA
- Department of Orthopaedic Surgery, Indiana University School of Medicine; Indianapolis, IN 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine; Indianapolis, IN 46202, USA
| | - Karen E. Pollok
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine; Indianapolis, IN 46202, USA
- Department of Pediatrics, Indiana University School of Medicine; Indianapolis, IN 46202, USA
| | - Andy Chen
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202 USA
| | - Jing Liu
- Department of Physics, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine; Indianapolis, IN 46202, USA
| | - William R. Thompson
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine; Indianapolis, IN 46202, USA
- Department of Physical Therapy, Indiana University, Indianapolis, IN 46202, USA
| | - Xue-Lian Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Bai-Yan Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Hiroki Yokota
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine; Indianapolis, IN 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine; Indianapolis, IN 46202, USA
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Feng Y, Huo Q, Li BY, Yokota H. Unveiling the Dichotomy of Urinary Proteins: Diagnostic Insights into Breast and Prostate Cancer and Their Roles. Proteomes 2023; 12:1. [PMID: 38250812 PMCID: PMC10801584 DOI: 10.3390/proteomes12010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
This review covers the diagnostic potential of urinary biomarkers, shedding light on their linkage to cancer progression. Urinary biomarkers offer non-invasive avenues for detecting cancers, potentially bypassing the invasiveness of biopsies. The investigation focuses primarily on breast and prostate cancers due to their prevalence among women and men, respectively. The intricate interplay of urinary proteins is explored, revealing a landscape where proteins exhibit context-dependent behaviors. The review highlights the potential impact of physical activity on urinary proteins, suggesting its influence on tumorigenic behaviors. Exercise-conditioned urine may emerge as a potential diagnostic biomarker source. Furthermore, treatment effects, notably after lumpectomy and prostatectomy, induce shifts in the urinary proteome, indicating therapeutic impacts rather than activating oncogenic signaling. The review suggests further investigations into the double-sided, context-dependent nature of urinary proteins, the potential role of post-translational modifications (PTM), and the integration of non-protein markers like mRNA and metabolites. It also discusses a linkage of urinary proteomes with secretomes from induced tumor-suppressing cells (iTSCs). Despite challenges like cancer heterogeneity and sample variability due to age, diet, and comorbidities, harnessing urinary proteins and proteoforms may hold promise for advancing our understanding of cancer progressions, as well as the diagnostic and therapeutic role of urinary proteins.
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Affiliation(s)
- Yan Feng
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China;
| | - Qingji Huo
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin 150081, China;
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Bai-Yan Li
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin 150081, China;
| | - Hiroki Yokota
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN 46202, USA
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3
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Cui C, Huo Q, Xiong X, Li K, Fishel ML, Li B, Yokota H. Anticancer Peptides Derived from Aldolase A and Induced Tumor-Suppressing Cells Inhibit Pancreatic Ductal Adenocarcinoma Cells. Pharmaceutics 2023; 15:2447. [PMID: 37896207 PMCID: PMC10610494 DOI: 10.3390/pharmaceutics15102447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/29/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
PDAC (pancreatic ductal adenocarcinoma) is a highly aggressive malignant tumor. We have previously developed induced tumor-suppressing cells (iTSCs) that secrete a group of tumor-suppressing proteins. Here, we examined a unique procedure to identify anticancer peptides (ACPs), using trypsin-digested iTSCs-derived protein fragments. Among the 10 ACP candidates, P04 (IGEHTPSALAIMENANVLAR) presented the most efficient anti-PDAC activities. P04 was derived from aldolase A (ALDOA), a glycolytic enzyme. Extracellular ALDOA, as well as P04, was predicted to interact with epidermal growth factor receptor (EGFR), and P04 downregulated oncoproteins such as Snail and Src. Importantly, P04 has no inhibitory effect on mesenchymal stem cells (MSCs). We also generated iTSCs by overexpressing ALDOA in MSCs and peripheral blood mononuclear cells (PBMCs). iTSC-derived conditioned medium (CM) inhibited the progression of PDAC cells as well as PDAC tissue fragments. The inhibitory effect of P04 was additive to that of CM and chemotherapeutic drugs such as 5-Flu and gemcitabine. Notably, applying mechanical vibration to PBMCs elevated ALDOA and converted PBMCs into iTSCs. Collectively, this study presented a unique procedure for selecting anticancer P04 from ALDOA in an iTSCs-derived proteome for the treatment of PDAC.
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Affiliation(s)
- Changpeng Cui
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (C.C.); (Q.H.); (X.X.); (K.L.)
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Qingji Huo
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (C.C.); (Q.H.); (X.X.); (K.L.)
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Xue Xiong
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (C.C.); (Q.H.); (X.X.); (K.L.)
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Kexin Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (C.C.); (Q.H.); (X.X.); (K.L.)
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Melissa L. Fishel
- Department of Pediatrics, Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN 46202, USA
| | - Baiyan Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (C.C.); (Q.H.); (X.X.); (K.L.)
| | - Hiroki Yokota
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN 46202, USA
- Department of Pediatrics, Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Li K, Huo Q, Minami K, Tamari K, Ogawa K, Na S, Fishel ML, Li BY, Yokota H. Exploring the Tumor-Suppressing Potential of PSCA in Pancreatic Ductal Adenocarcinoma. Cancers (Basel) 2023; 15:4917. [PMID: 37894284 PMCID: PMC10605218 DOI: 10.3390/cancers15204917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/03/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with low survival rates. We explored an innovative therapeutic approach by leveraging prognostic oncogenic markers. Instead of inhibiting these marker genes, we harnessed their tumor-modifying potential in the extracellular domain. Surprisingly, many of the proteins highly expressed in PDAC, which is linked to poor survival, exhibited tumor-suppressing qualities in the extracellular environment. For instance, prostate stem cell antigens (PSCA), associated with reduced survival, acted as tumor suppressors when introduced extracellularly. We performed in vitro assays to assess the proliferation and migration and evaluated the tumor-modifying capacity of extracellular factors from peripheral blood mononuclear cells (PBMCs) in PDAC tissues. Molecular docking analysis, immunoprecipitation, Western blotting, and RNA interference were employed to study the regulatory mechanism. Extracellular PSCA recombinant protein notably curtailed the viability, motility, and transwell invasion of PDAC cells. Its anti-PDAC effects were partially mediated by Mesothelin (MSLN), another highly expressed tumor-associated antigen in PDAC. The anti-tumor effects of extracellular PSCA complemented those of chemotherapeutic agents like Irinotecan, 5-Fluorouracil, and Oxaliplatin. PSCA expression increased in a conditioned medium derived from PBMCs and T lymphocytes. This study unveils the paradoxical anti-PDAC potential of PSCA, hinting at the dual roles of oncoproteins like PSCA in PDAC suppression.
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Affiliation(s)
- Kexin Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (K.L.); (Q.H.)
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA;
| | - Qingji Huo
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (K.L.); (Q.H.)
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA;
| | - Kazumasa Minami
- Department of Radiation Oncology, Graduate School of Medicine, Osaka University, Suita 565-0871, Osaka, Japan; (K.M.); (K.T.); (K.O.)
| | - Keisuke Tamari
- Department of Radiation Oncology, Graduate School of Medicine, Osaka University, Suita 565-0871, Osaka, Japan; (K.M.); (K.T.); (K.O.)
| | - Kazuhiko Ogawa
- Department of Radiation Oncology, Graduate School of Medicine, Osaka University, Suita 565-0871, Osaka, Japan; (K.M.); (K.T.); (K.O.)
| | - Sungsoo Na
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA;
| | - Melissa L. Fishel
- Department of Pediatrics, Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN 46202, USA
| | - Bai-Yan Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China; (K.L.); (Q.H.)
| | - Hiroki Yokota
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA;
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Huo Q, Li K, Sun X, Zhuang A, Minami K, Tamari K, Ogawa K, Fishel ML, Li BY, Yokota H. The inhibition of pancreatic cancer progression by K-Ras-overexpressing mesenchymal stem cell-derived secretomes. Sci Rep 2023; 13:15036. [PMID: 37699930 PMCID: PMC10497626 DOI: 10.1038/s41598-023-41835-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/31/2023] [Indexed: 09/14/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with poor survival. To explore an uncharted function of K-Ras proto-oncogene, K-Ras was activated in mesenchymal stem cells (MSCs) and the effects of MSC conditioned medium (CM) on PDAC were examined. Overexpression of K-Ras elevated PI3K signaling in MSCs, and K-Ras/PI3K-activated MSC-derived CM reduced the proliferation and migration of tumor cells, as well as the growth of ex vivo freshly isolated human PDAC cultures. CM's anti-tumor capability was additive with Gemcitabine, a commonly used chemotherapeutic drug in the treatment of PDAC. The systemic administration of CM in a mouse model suppressed the colonization of PDAC in the lung. MSC CM was enriched with Moesin (MSN), which acted as an extracellular tumor-suppressing protein by interacting with CD44. Tumor-suppressive CM was also generated by PKA-activated peripheral blood mononuclear cells. Collectively, this study demonstrated that MSC CM can be engineered to act as a tumor-suppressive agent by activating K-Ras and PI3K, and the MSN-CD44 regulatory axis is in part responsible for this potential unconventional option in the treatment of PDAC.
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Affiliation(s)
- Qingji Huo
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN, 46202, USA
| | - Kexin Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN, 46202, USA
| | - Xun Sun
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN, 46202, USA
| | - Adam Zhuang
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN, 46202, USA
| | - Kazumasa Minami
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Keisuke Tamari
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Kazuhiko Ogawa
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Melissa L Fishel
- Department of Pediatrics, Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
| | - Bai-Yan Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin, 150081, China.
| | - Hiroki Yokota
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN, 46202, USA.
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA.
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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Li K, Huo Q, Dimmitt NH, Qu G, Bao J, Pandya PH, Saadatzadeh MR, Bijangi-Vishehsaraei K, Kacena MA, Pollok KE, Lin CC, Li BY, Yokota H. Osteosarcoma-enriched transcripts paradoxically generate osteosarcoma-suppressing extracellular proteins. eLife 2023; 12:83768. [PMID: 36943734 PMCID: PMC10030111 DOI: 10.7554/elife.83768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 03/01/2023] [Indexed: 03/23/2023] Open
Abstract
Osteosarcoma (OS) is the common primary bone cancer that affects mostly children and young adults. To augment the standard-of-care chemotherapy, we examined the possibility of protein-based therapy using mesenchymal stem cells (MSCs)-derived proteomes and OS-elevated proteins. While a conditioned medium (CM), collected from MSCs, did not present tumor-suppressing ability, the activation of PKA converted MSCs into induced tumor-suppressing cells (iTSCs). In a mouse model, the direct and hydrogel-assisted administration of CM inhibited tumor-induced bone destruction, and its effect was additive with cisplatin. CM was enriched with proteins such as calreticulin, which acted as an extracellular tumor suppressor by interacting with CD47. Notably, the level of CALR transcripts was elevated in OS tissues, together with other tumor-suppressing proteins, including histone H4, and PCOLCE. PCOLCE acted as an extracellular tumor-suppressing protein by interacting with amyloid precursor protein, a prognostic OS marker with poor survival. The results supported the possibility of employing a paradoxical strategy of utilizing OS transcriptomes for the treatment of OS.
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Affiliation(s)
- Kexin Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, United States
| | - Qingji Huo
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, United States
| | - Nathan H Dimmitt
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, United States
| | - Guofan Qu
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Junjie Bao
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Pankita H Pandya
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, United States
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, United States
| | - M Reza Saadatzadeh
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, United States
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, United States
| | | | - Melissa A Kacena
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, United States
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, United States
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, United States
| | - Karen E Pollok
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, United States
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, United States
| | - Chien-Chi Lin
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, United States
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, United States
| | - Bai-Yan Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin, China
| | - Hiroki Yokota
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, United States
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, United States
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, United States
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Li K, Huo Q, Li BY, Yokota H. The Double-Edged Proteins in Cancer Proteomes and the Generation of Induced Tumor-Suppressing Cells (iTSCs). Proteomes 2023; 11:proteomes11010005. [PMID: 36810561 PMCID: PMC9944087 DOI: 10.3390/proteomes11010005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Unlike a prevalent expectation that tumor cells secrete tumor-promoting proteins and stimulate the progression of neighboring tumor cells, accumulating evidence indicates that the role of tumor-secreted proteins is double-edged and context-dependent. Some of the oncogenic proteins in the cytoplasm and cell membranes, which are considered to promote the proliferation and migration of tumor cells, may inversely act as tumor-suppressing proteins in the extracellular domain. Furthermore, the action of tumor-secreted proteins by aggressive "super-fit" tumor cells can be different from those derived from "less-fit" tumor cells. Tumor cells that are exposed to chemotherapeutic agents could alter their secretory proteomes. Super-fit tumor cells tend to secrete tumor-suppressing proteins, while less-fit or chemotherapeutic agent-treated tumor cells may secrete tumor-promotive proteomes. Interestingly, proteomes derived from nontumor cells such as mesenchymal stem cells and peripheral blood mononuclear cells mostly share common features with tumor cell-derived proteomes in response to certain signals. This review introduces the double-sided functions of tumor-secreted proteins and describes the proposed underlying mechanism, which would possibly be based on cell competition.
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Affiliation(s)
- Kexin Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Qingji Huo
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Bai-Yan Li
- Department of Pharmacology, School of Pharmacy, Harbin Medical University, Harbin 150081, China
- Correspondence: (B.-Y.L.); (H.Y.)
| | - Hiroki Yokota
- Department of Biomedical Engineering, Indiana University Purdue University Indianapolis, Indianapolis, IN 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Indiana University Simon Comprehensive Cancer Center, Indianapolis, IN 46202, USA
- Correspondence: (B.-Y.L.); (H.Y.)
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Li K, Huo Q, Li BY, Yokota H. Three unconventional maxims in the natural selection of cancer cells: Generation of induced tumor-suppressing cells (iTSCs). Int J Biol Sci 2023; 19:1403-1412. [PMID: 37056934 PMCID: PMC10086743 DOI: 10.7150/ijbs.79155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 02/16/2023] [Indexed: 03/14/2023] Open
Abstract
Induced tumor-suppressing cells (iTSCs) can be generated from cancer and non-cancer cells. Here, three paradoxical maxims for the action of iTSCs are reviewed: the secretion of tumor-suppressing proteins, their role as a "double-edged" sword, and the elimination of lesser-fit cancer cells. "Super-fit" cancer cells secrete an array of proteins, most of which contribute to enhancing their growth and removing "lesser-fit" cancer cells. These maxims explain the potential dilemma with therapeutic agents since the inhibitory agents tend to promote the synthesis of tumor-promoting proteins. The maxims suggest the possibility of a novel treatment option using cancer-guided evolutionary-fit iTSCs.
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Huo Q. A Combined Bioinformatic and Nanoparticle-Based Study Reveal the Role of ABCG2 in the Drug Resistant Breast Cancer. Recent Pat Anticancer Drug Discov 2021. [DOI: 10.2174/22123970mte0qmzcax] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Yang D, Xin M, Wang J, Xu H, Huo Q, Tang Z, Wang H. Chemokine receptor CXCR4 and its ligand CXCL12 expressions and clinical significance in bladder cancer. Genet Mol Res 2015; 14:17699-707. [DOI: 10.4238/2015.december.21.43] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wang HF, Yang H, Hu LB, Lei YH, Qin Y, Li J, Bi CW, Wang JS, Huo Q. Effect of siRNA targeting EZH2 on cell viability and apoptosis of bladder cancer T24 cells. Genet Mol Res 2014; 13:9939-50. [PMID: 25501205 DOI: 10.4238/2014.november.27.23] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We investigated the effect of siRNA targeting enhancer of EZH2 on cell proliferation, invasion, migration, and apoptosis of human bladder cancer T24 cells. An siRNA-expressing plasmid targeting the EZH2 gene was transfected into T24 cells. Quantitative polymerase chain reaction and Western blot analysis were used to detect EZH2 expression at the mRNA and protein levels, respectively. Proliferation, invasion, and migration of T24 cells were examined in vivo using MTT, wound healing, and transwell chamber migration assays, respectively. Annexin V-fluorescein isothiocyanate/propidium iodide flow cytometric analysis was performed to determine cell apoptosis levels. Expression of EZH2 in T24 cells was suppressed at the mRNA and protein levels. Following transfection for 48 h, growth was inhibited by 37.9%, which was markedly lower than that in the negative control group (P < 0.05). Following a wound-healing assay for 24 h, transfected cell migration distance was 1.37 ± 0.12, which was markedly less than the horizontal migration distance of negative control group cells (P < 0.01). In addition, the cell invasion ability of EZH2- siRNA group cells decreased by 67% compared with negative control group cells (P < 0.01). Following transfection for 48 h, early- and late-stage apoptosis rates for T24 cells were 22.8 and 3.60%, respectively, which were higher than in the negative control group (P < 0.01). EZH2 gene silencing effectively suppressed the proliferation, invasion, and migration abilities of human bladder cancer cells, promoting apoptosis.
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Affiliation(s)
- H F Wang
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - H Yang
- Department of Urology, Yunnan Provincial Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - L B Hu
- Department of Urology, Yunnan Provincial Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Y H Lei
- Department of Urology, Yunnan Provincial Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Y Qin
- Department of Urology, Yunnan Provincial Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - J Li
- Department of Urology, Yunnan Provincial Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - C W Bi
- Department of Urology, Yunnan Provincial Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - J S Wang
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Q Huo
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
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12
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Davila M, Robles-Carrillo L, Unruh D, Huo Q, Gardiner C, Sargent IL, Adam M, Woodhams BJ, Francis JL, Bogdanov VY, Amirkhosravi A. Microparticle association and heterogeneity of tumor-derived tissue factor in plasma: is it important for coagulation activation? J Thromb Haemost 2014; 12:186-96. [PMID: 24298933 DOI: 10.1111/jth.12475] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Tumor-derived tissue factor (TF) activates coagulation in vitro and in vivo in an orthotopic model of human pancreatic cancer. Here, we further characterized tumor-derived TF in this model. METHODS Conditioned medium (CM) of L3.6pl human pancreatic tumor cells and plasma from nude mice bearing L3.6pl tumors were ultracentrifuged, and the pellets were filtered through membranes with different pore sizes. The size distribution of particles was analyzed in CM or plasma fractions with nanoparticle tracking and dynamic light scattering. Human TF antigen and activity were measured in pellets and supernatants with ELISA and clotting or thrombin generation assays, respectively. Human alternatively spliced TF (asTF) was measured with ELISA. Human TF and thrombin-antithrombin complex (TAT) concentrations were assessed in plasma of mice injected with filtered fractions of CM. RESULTS Particles in both CM and plasma were < 0.4 μm. TF antigen and activity in the CM were mainly associated with microparticles (MP). Approximately 50% of antigen and 20% of activity were associated with particles of < 0.1 μm. Injection of < 0.1 μm particles into mice caused a 30% drop in platelet counts and an increase in TAT levels. In contrast, ~ 90% of TF antigen in tumor-bearing mice plasmas was non-sedimentable, whereas TF activity was exclusively associated with MP. Particles of < 0.1 μm and the supernatants of both CM and plasma gained TF activity after addition of exogenous phospholipids. Although asTF was found in MP-free CM supernatants, it was also present in CM and plasma pellets. CONCLUSIONS Tumor-derived particles of < 0.1 μm and non-sedimentable TF are or can become procoagulant in the presence of phospholipids, and may contribute to the procoagulant potential of circulating TF.
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Affiliation(s)
- M Davila
- Florida Hospital Center for Thrombosis Research, Orlando, FL, USA
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Zhang J, Zheng Y, Guo Z, Qiao J, Gesudu Q, Sun Z, Huo D, Huang W, Huo Q, Kwok L, Zhang H. The diversity of intestinal microbiota of Mongolians living in Inner Mongolia, China. Benef Microbes 2013; 4:319-328. [PMID: 24311315 DOI: 10.3920/bm2013.0028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2024]
Abstract
The Mongolian nationality has developed their unique lifestyle and dietary habit for thousands of years. However, by now, little research has been focused on Mongolian gut microbiota and how it is related to different dietary habits. In this study, denaturing gradient gel electrophoresis (DGGE) and quantitative polymerase chain reaction (qPCR) methods were applied to reveal the diversity of predominant gut bacteria of 48 healthy Mongolians recruited from Hohhot city and the Xilin Gol pasturing area in Inner Mongolia. Compared to similar studies of other nationalities, results from the present study have confirmed that the composition of Mongolian gut microbiota is highly similar at the phylum level (Firmicutes, Bacteroidetes, Proteobacteria and Actinobacteria) but variable at the genus level. Especially, the numbers of Phascolarctobacterium, Lactobacillus and Bifidobacterium are rather high. DGGE profiles of Lactobacillus and Bifidobacterium revealed that Lactobacillus casei, Bifidobacterium longum and Bifidobacterium animalis subsp. lactis were predominant in the gut of the Mongolian subjects studied. On the contrary, Lactobacillus helveticus was detected in every pasturing area Mongolian, but not in any of the Hohhot city Mongolians. qPCR results revealed that the numbers of Lactobacillus and Bifidobacterium of Xilin Gol Mongolians were significantly higher (P<0.05) than that of Hohhot Mongolians, whereas the numbers of Enterobacterium were significantly lower (P<0.05). In addition, by partial least squares discriminate analysis and cluster analysis of data generated from DGGE and qPCR experiments, a striking difference in the composition of intestinal microbiota of Mongolians living in Hohhot city and the Xilin Gol pasturing area has been found. This study clearly shows that diet affects the microbiota composition of Mongolians living in different circumstances, i.e. urban versus rural.
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Affiliation(s)
- J Zhang
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - Y Zheng
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - Z Guo
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - J Qiao
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - Q Gesudu
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - Z Sun
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - D Huo
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - W Huang
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - Q Huo
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - L Kwok
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
| | - H Zhang
- Key Laboratory of Dairy Biotechnology and Bioengineering, Education Ministry of P.R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, 306 Zhaowuda road, Hohhot 010018, China
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Glinka CJ, Nicol JM, Stucky GD, Ramli E, Margolese DI, Huo Q. Small Angle Neutron Scattering Study of the Structure and Formation of Ordered Mesopores in Silica. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-371-47] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractThe nanoscale structure and synthesis mechanisms of a recently developed class of inorganic mesoporous materials with ordered arrays of uniform mesopores have been investigated by small angle neutron scattering (SANS). SANS measurements with solvents imbibed into the pores to vary the scattering contrast demonstrate that the low angle diffraction peaks from these materials are entirely due to the pore structure and that the pores are fully accessible to both aqueous and organic solvents. SANS measurements on the concentrated cationic surfactant and silicate precursor solutions typically used in the synthesis of the mesopore materials indicate that the existence of preassembled supramolecular arrays that mimic the final pore structure is not essential for the synthesis of these materials.
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Huo Q, Leon R, Petroff PM, Stucky GD. Mesostructure design with gemini surfactants: supercage formation in a three-dimensional hexagonal array. Science 2010; 268:1324-7. [PMID: 17778977 DOI: 10.1126/science.268.5215.1324] [Citation(s) in RCA: 616] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
At low temperatures, liquid crystal-like arrays made up of inorganic-cluster and organic molecular units readily undergo reversible lyotropic transformations. Gemini surfactants, with two quaternary ammonium head groups separated by a methylene chain of variable length and with each head group attached to a hydrophobic tail, can be used to control organic charge sitting relative to the bivariable hydrophobic tail configurations. This approach has led to the synthesis of a mesophase (SBA-2) that has three-dimensional hexagonal (P6(3)/mmc) symmetry, regular supercages that can be dimensionally tailored, and a large inner surface area. This mesostructure analog of a zeolite cage structure does not appear to have a lyotropic surfactant or lipid liquid crystal mesophase counterpart. Through the modification of gemini charge separation and each of the two organic tails, these syntheses can be used to optimize templating effects, including the synthesis of MCM-48 at room temperature.
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16
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Sui G, Jana S, Salehi-khojin A, Neema S, Zhong WH, Chen H, Huo Q. Thermal and mechanical properties of epoxy composites reinforced by a natural hydrophobic sand. J Appl Polym Sci 2008. [DOI: 10.1002/app.27321] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Stucky GD, Monnier A, Schüth F, Huo Q, Margolese D, Kumar D, Krishnamurty M, Petroff P, Firouzi A, Janicke M, Chmelka BF. Molecular and Atomic Arrays in Nano- and Mesoporous Materials Synthesis. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259408029730] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- G. D. Stucky
- a Department of Chemistry , University of California , Santa Barbara , California , 93106 , U.S.A
| | - A. Monnier
- a Department of Chemistry , University of California , Santa Barbara , California , 93106 , U.S.A
| | - F. Schüth
- a Department of Chemistry , University of California , Santa Barbara , California , 93106 , U.S.A
| | - Q. Huo
- a Department of Chemistry , University of California , Santa Barbara , California , 93106 , U.S.A
| | - D. Margolese
- a Department of Chemistry , University of California , Santa Barbara , California , 93106 , U.S.A
| | - D. Kumar
- a Department of Chemistry , University of California , Santa Barbara , California , 93106 , U.S.A
| | - M. Krishnamurty
- b Materials Department , University of California , Santa Barbara , California , 93106 , U.S.A
| | - P. Petroff
- b Materials Department , University of California , Santa Barbara , California , 93106 , U.S.A
| | - A. Firouzi
- c Department of Chemical and Nuclear Engineering , University of California , Santa Barbara , California , 93106 , U.S.A
| | - M. Janicke
- c Department of Chemical and Nuclear Engineering , University of California , Santa Barbara , California , 93106 , U.S.A
| | - B. F. Chmelka
- c Department of Chemical and Nuclear Engineering , University of California , Santa Barbara , California , 93106 , U.S.A
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Abstract
Langmuir monolayers made from peptide-lipid molecules represent a novel direction in the research areas of biomimetic interfaces and two-dimensional supramolecular chemistry. Peptide structures and molecular recognition activities toward other guest molecules have been the focus of previous study. This study reports the investigation of metal complexation to histidine-containing peptide lipids in the organized Langmuir, Langmuir-Schaefer, or Langmuir-Blodgett films. Three peptide lipids PEP1-PEP3, with a histidine amino acid incorporated in the middle of the peptide, were designed and synthesized. The monolayer structures and metal-binding activities of each peptide lipid and their 1:1:1 molar ratio mixture were studied by thermodynamic and spectroscopic techniques. It was found that hard Lewis acid type metal cations such as K+ and Mg2+, and borderline or soft metal cations such as Zn2+, Cu2+, and Cd2+ exhibit clearly different binding activity toward peptide-lipid monolayers. The conformational changes of peptides upon binding with Cu2+ and Zn2+ were partially revealed by FT-IR spectroscopic studies. Furthermore, by adding a fluorescent-probe lipid to the peptide monolayer, dramatic fluorescence change was observed when Cu2+ or Zn2+ bound to the Langmuir and Langmuir-Schaefer films of peptide-lipid monolayers. Metal-protein complexation plays a crucial role in the function and activity of proteins and enzymes. Investigation of metal complexation to organized peptide Langmuir monolayers may provide an alternative approach for the development of artificial metalloproteins and novel supramolecular systems or materials.
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Affiliation(s)
- Q Huo
- Center for Supramolecular Science, Department of Chemistry, University of Miami, Coral Gables, FL 33124, USA
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19
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Zheng Y, Huo Q, Kele P, Andreopoulos FM, Pham SM, Leblanc RM. A new fluorescent chemosensor for copper ions based on tripeptide glycyl-histidyl-lysine (GHK). Org Lett 2001; 3:3277-80. [PMID: 11594813 DOI: 10.1021/ol0101638] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text]. A new fluorescent chemosensor for Cu2+ ions was synthesized by modifying the tripeptide glycyl-histidyl-lysine (GHK) with 9-carbonylanthracene via the standard Fmoc solid-phase peptide synthesis method. While significant fluorescence quenching was observed from the molecule upon binding with Cu2+, addition of Fe2+, Co2+, Ni2+, and Zn2+ to the peptide solution caused a minimum fluorescence emission spectral change, indicating a high specificity of this chemosensor for Cu2+ ions. Effects of pH were also investigated.
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Affiliation(s)
- Y Zheng
- Center for Supramolecular Science and Department of Chemistry, University of Miami, PO Box 249118, Coral Gables, Florida 33124, USA
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20
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La L, Jiang X, Huo Q. [The preparation of collagen burn pellicle of compound sulfadiazine silver and assessment of its efficacy in an animal experiment on deep partial thickness burn wound]. Hua Xi Yi Ke Da Xue Xue Bao 2001; 32:419-23. [PMID: 12536582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To prepare the collagen burn pellicle of compound sulfadiazine sliver and observe its therapeutic effect on deep partial thickness burn wound. METHODS The initator method was adopted for preparing the collagen burn pellicle of compound sulfadiazine sliver. A model of deep partial thickness burn wound was established in 84 SD rats for the observation of the effect of collagen burn pellicle of compound sulfadiazine sliver on burn wound healing. RESULTS The collagen burn pellicle of compound sulfadiazine sliver enhanced the coming off of necrotic tissues and the healing of burn wound. The hydroxyproline content of burn wound was higher in the experiment group than that in the comparison groups, (P < 0.05). The percentage of G0/G1-phase in full skin cells of burn wound at 5, 7, 10 and 14 days after burn was lower than that in the comparison groups (P < 0.05). The percentage of S-phase at 5, 7 and 14 days was higher in the experiment group than that in the comparison groups (P < 0.05). The water content in full skin cells of burn wound at 24, 36 and 48 hours after burn was significantly lower in the experiment group than that the comparison groups (P < 0.05). CONCLUSION The collagen burn pellicle of compound sulfadiazine sliver can enhance wound healing in the management of deep partial thickness burn wound.
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Affiliation(s)
- L La
- Department of Pharmacy, Nan Fang Hospital, Frist Military Medical University, Guangzhou 510515, China
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Huo Q, Sui G, Kele P, Leblanc RM. Combinatorial Surface Chemistry-Is it Possible? The authors thank the Charles E. Culpeper Foundation for the financial support of this work. Angew Chem Int Ed Engl 2000; 39:1854-1857. [PMID: 10934385 DOI: 10.1002/(sici)1521-3773(20000515)39:10<1854::aid-anie1854>3.0.co;2-u] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Q Huo
- Center for Supramolecular Science Department of Chemistry University of Miami 1301 Memorial Drive, Cox 315, Coral Gables, FL 33124 (USA)
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22
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Cheng Y, Huo Q, Lu J, Li R, Wang K. The transport kinetics of lanthanide species in a single erythrocyte probed by confocal laser scanning microscopy. J Biol Inorg Chem 1999; 4:447-56. [PMID: 10555579 DOI: 10.1007/s007750050331] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel method has been developed to visualize and follow the temporal course of lanthanide transport across the membrane into a single living erythrocyte. By means of confocal scanning microscopy and the optical section technique, the entry of lanthanide ions was followed by the fluorescence quenching of fluorescein isothiocyanate (FITC)-labeled membrane and cytosol. From the difference of the quenching kinetics of the whole section and the central area, the time for diffusion through the membrane and the diffusion in the extracellular and intracellular media can be deduced. To clarify the mechanism of lanthanide-induced fluorescence quenching of FITC-labeled erythrocytes and to ensure that this reaction can be used in this method, the reaction was investigated by steady-state fluorescence techniques. The results showed that the lanthanides strongly quenched the florescence emitted by FITC covalently bound to membrane proteins and cytosolic proteins. The static quenching mechanism is responsible for the fluorescence quenching of FITC-labeled proteins by Ln species. The quenching mechanism is discussed on the basis of complex formation. The dependence of fluorescence quenching on both ion size and the total orbital angular momentum L supports the complexation mechanism. The transport time across the membrane is strikingly correlated with Ln species and extracellular concentration. For a given concentration, the transport time of [Ln(cit)2]3- is much shorter than that of Ln3+, since they enter the cells via the anion channel. This is supported by the inhibition effect of 4,4'-diisothiocyanato-2,2'-stilbenendisulfonate on the transport of [Ln(cit)2]3-. On the other hand, the transport of free Ln3+ might be attributed to the enhanced permeability of erythrocytes owing to Ln3+ binding. These findings strongly demonstrate the existence of the non-internalization mechanism of Ln species uptake by erythrocytes.
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Affiliation(s)
- Y Cheng
- National Research Laboratories of Natural and Biomimetic Drugs, Beijing Medical University, China
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23
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Zhao D, Feng J, Huo Q, Melosh N, Fredrickson GH, Chmelka BF, Stucky GD. Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores. Science 1998; 279:548-52. [PMID: 9438845 DOI: 10.1126/science.279.5350.548] [Citation(s) in RCA: 5570] [Impact Index Per Article: 214.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Use of amphiphilic triblock copolymers to direct the organization of polymerizing silica species has resulted in the preparation of well-ordered hexagonal mesoporous silica structures (SBA-15) with uniform pore sizes up to approximately 300 angstroms. The SBA-15 materials are synthesized in acidic media to produce highly ordered, two-dimensional hexagonal (space group p6mm) silica-block copolymer mesophases. Calcination at 500 degrees C gives porous structures with unusually large interlattice d spacings of 74.5 to 320 angstroms between the (100) planes, pore sizes from 46 to 300 angstroms, pore volume fractions up to 0.85, and silica wall thicknesses of 31 to 64 angstroms. SBA-15 can be readily prepared over a wide range of uniform pore sizes and pore wall thicknesses at low temperature (35 degrees to 80 degrees C), using a variety of poly(alkylene oxide) triblock copolymers and by the addition of cosolvent organic molecules. The block copolymer species can be recovered for reuse by solvent extraction with ethanol or removed by heating at 140 degrees C for 3 hours, in both cases, yielding a product that is thermally stable in boiling water.
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Affiliation(s)
- D Zhao
- D. Zhao, Q. Huo, G. D. Stucky, Department of Chemistry and Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA. J. Feng, Department of Chemistry and Center for Quantized Electronic Structures, University of
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Abstract
Ordered mesostructured porous silicas that are also macroscopically structured were created by control of the interface on two different length scales simultaneously. Micellar arrays controlled the nanometer-scale assembly, and at the static boundary between an aqueous phase and an organic phase, control was achieved on the micrometer to centimeter scale. Acid-prepared mesostructures of silica were made with the p6, Pm3n, and the P63/mmc structures in the form of porous fibers 50 to 1000 micrometers in length, hollow spheres with diameters of 1 to 100 micrometers, and thin sheets up to 10 centimeters in diameter and about 10 to 500 micrometers in thickness. These results might have implications for technical applications, such as slow drug-release systems or membranes, and in biomineralization, where many processes are also interface-controlled.
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Affiliation(s)
- S Schacht
- S. Schacht and F. Schuth, Institut fur Anorganische Chemie, Johann Wolfgang Goethe Universitat Frankfurt, Marie Curie Strasse 11, 60439 Frankfurt, Germany. Q. Huo and G. D. Stucky, Department of Chemistry, University of California, Santa Barbara, CA 93106, USA. I. G. Voigt-Martin, Institut fur Physikalische Chemie, Johannes Gutenberg-Universitat Mainz, Welderweg 11, 55099 Mainz, Germany
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Firouzi A, Kumar D, Bull LM, Besier T, Sieger P, Huo Q, Walker SA, Zasadzinski JA, Glinka C, Nicol J. Cooperative organization of inorganic-surfactant and biomimetic assemblies. Science 1995; 267:1138-43. [PMID: 7855591 DOI: 10.1126/science.7855591] [Citation(s) in RCA: 664] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A model that makes use of the cooperative organization of inorganic and organic molecular species into three dimensionally structured arrays is generalized for the synthesis of nanocomposite materials. In this model, the properties and structure of a system are determined by dynamic interplay among ion-pair inorganic and organic species, so that different phases can be readily obtained through small variations of controllable synthesis parameters, including mixture composition and temperature. Nucleation, growth, and phase transitions may be directed by the charge density, coordination, and steric requirements of the inorganic and organic species at the interface and not necessarily by a preformed structure. A specific example is presented in which organic molecules in the presence of multiply charged silicate oligomers self-assemble into silicatropic liquid crystals. The organization of these silicate-surfactant mesophases is investigated with and without interfacial silicate condensation to separate the effects of self-assembly from the kinetics of silicate polymerization.
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Affiliation(s)
- A Firouzi
- Department of Chemical Engineering, University of California, Santa Barbara 93106
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Chippindale AM, Powell AV, Jones RH, Thomas JM, Cheetham AK, Huo Q, Xu R. A three-dimensional framework aluminophosphate (CH3NH3)+[Al3P3O13H]−. Acta Crystallogr C 1994. [DOI: 10.1107/s0108270194003537] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Monnier A, Schüth F, Huo Q, Kumar D, Margolese D, Maxwell RS, Stucky GD, Krishnamurty M, Petroff P, Firouzi A, Janicke M, Chmelka BF. Cooperative Formation of Inorganic-Organic Interfaces in the Synthesis of Silicate Mesostructures. Science 1993; 261:1299-303. [PMID: 17731857 DOI: 10.1126/science.261.5126.1299] [Citation(s) in RCA: 711] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A model is presented to explain the formation and morphologies of surfactant-silicate mesostructures. Three processes are identified: multidentate binding of silicate oligomers to the cationic surfactant, preferential silicate polymerization in the interface region, and charge density matching between the surfactant and the silicate. The model explains present experimental data, including the transformation between lamellar and hexagonal mesophases, and provides a guide for predicting conditions that favor the formation of lamellar, hexagonal, or cubic mesostructures. Model Q(230) proposed by Mariani and his co-workers satisfactorily fits the x-ray data collected on the cubic mesostructure material. This model suggests that the silicate polymer forms a unique infinite silicate sheet sitting on the gyroid minimal surface and separating the surfactant molecules into two disconnected volumes.
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