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Zhang Y, Li HH, Ye MF, Li WW, Zhang C, Wang HF. Unexpected Foreign Body-Induced Small Bowel adenocarcinoma: A Case Report. J Inflamm Res 2024; 17:6723-6728. [PMID: 39345894 PMCID: PMC11438445 DOI: 10.2147/jir.s477855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Accepted: 09/05/2024] [Indexed: 10/01/2024] Open
Abstract
Background Foreign body-induced cancer is a traditional way of understanding cancer development. The induction of cancers by exogenous foreign bodies has been identified in many organs. However, small bowel adenocarcinoma induced by foreign bodies has not been reported in the literature, although the incidence of small bowel adenocarcinoma is increasing globally. Case Presentation A 70-year-old man was hospitalized for persistent right-sided abdominal pain for 3 months. Abdominal computed tomography revealed localized thickening and clustering of the small bowel wall in the right abdominal cavity. A comminuted fracture of the right 11th rib protruding into the abdominal cavity was observed, with a bone fragment located within the intestinal mass. Exploratory laparotomy was performed, and extensive adhesions were noted among the greater omentum, small bowel, mesentery, and right abdominal wall. Radical resection and lymph node dissection of the affected small bowel and appendix were performed. We also excised the rib end and repaired the abdominal wall to prevent further irritation. The patient was discharged 12 days post-surgery and follow-up assessments revealed no reported discomfort. Conclusion We first report a case of small bowel adenocarcinoma induced by self-bone tissue, along with successful radical tumor excision and thorough foreign body removal. This case highlights the significant role of chronic inflammation in carcinogenesis.
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Affiliation(s)
- Yu Zhang
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, 312000, People's Republic of China
| | - Hong-Hai Li
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, 312000, People's Republic of China
| | - Min-Feng Ye
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, 312000, People's Republic of China
| | - Wei-Wei Li
- Department of Gastroenterology, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, 312000, People's Republic of China
| | - Chu Zhang
- Department of Thoracic Surgery, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, 312000, People's Republic of China
| | - Hai-Feng Wang
- Department of Gastrointestinal Surgery, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, 312000, People's Republic of China
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2
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Fonti N, Parisi F, Mancianti F, Freer G, Poli A. Cancerogenic parasites in veterinary medicine: a narrative literature review. Infect Agent Cancer 2023; 18:45. [PMID: 37496079 PMCID: PMC10373346 DOI: 10.1186/s13027-023-00522-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/17/2023] [Indexed: 07/28/2023] Open
Abstract
Parasite infection is one of the many environmental factors that can significantly contribute to carcinogenesis and is already known to be associated with a variety of malignancies in both human and veterinary medicine. However, the actual number of cancerogenic parasites and their relationship to tumor development is far from being fully understood, especially in veterinary medicine. Thus, the aim of this review is to investigate parasite-related cancers in domestic and wild animals and their burden in veterinary oncology. Spontaneous neoplasia with ascertained or putative parasite etiology in domestic and wild animals will be reviewed, and the multifarious mechanisms of protozoan and metazoan cancer induction will be discussed.
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Affiliation(s)
- Niccolò Fonti
- Dipartimento di Scienze veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy.
| | - Francesca Parisi
- Dipartimento di Scienze veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy
| | - Francesca Mancianti
- Dipartimento di Scienze veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy
| | - Giulia Freer
- Dipartimento di Ricerca Traslazionale e delle Nuove Tecnologie in Medicina e Chirurgia, Università di Pisa, Via Savi, 10, 56126, Pisa, Italy
| | - Alessandro Poli
- Dipartimento di Scienze veterinarie, Università di Pisa, Viale delle Piagge, 2, 56124, Pisa, Italy
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3
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Brown JS. Comparison of Oncogenes, Tumor Suppressors, and MicroRNAs Between Schizophrenia and Glioma: The Balance of Power. Neurosci Biobehav Rev 2023; 151:105206. [PMID: 37178944 DOI: 10.1016/j.neubiorev.2023.105206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/25/2023] [Accepted: 04/30/2023] [Indexed: 05/15/2023]
Abstract
The risk of cancer in schizophrenia has been controversial. Confounders of the issue are cigarette smoking in schizophrenia, and antiproliferative effects of antipsychotic medications. The author has previously suggested comparison of a specific cancer like glioma to schizophrenia might help determine a more accurate relationship between cancer and schizophrenia. To accomplish this goal, the author performed three comparisons of data; the first a comparison of conventional tumor suppressors and oncogenes between schizophrenia and cancer including glioma. This comparison determined schizophrenia has both tumor-suppressive and tumor-promoting characteristics. A second, larger comparison between brain-expressed microRNAs in schizophrenia with their expression in glioma was then performed. This identified a core carcinogenic group of miRNAs in schizophrenia offset by a larger group of tumor-suppressive miRNAs. This proposed "balance of power" between oncogenes and tumor suppressors could cause neuroinflammation. This was assessed by a third comparison between schizophrenia, glioma and inflammation in asbestos-related lung cancer and mesothelioma (ALRCM). This revealed that schizophrenia shares more oncogenic similarity to ALRCM than glioma.
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4
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Luo G, Xu Z, Zhong H, Shao H, Liao H, Liu N, Jiang X, Zhang Y, Ji X. Biodegradable photothermal thermosensitive hydrogels treat osteosarcoma by reprogramming macrophages. Biomater Sci 2023; 11:2818-2827. [PMID: 36826467 DOI: 10.1039/d2bm01900k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Osteosarcoma is one of the most common malignant tumors in children and tends to occur around the knee. Problems such as recurrence and metastasis are the outcomes of traditional treatment methods. One of the reasons for these issues is the infiltration of tumor-associated macrophages (TAMs) in the tumor microenvironment (TME). Photothermal immunotherapy has emerged as one of the most potent approaches for cancer treatment. In this study, we designed a biodegradable, injectable, and photothermal hydrogel that functions to reprogram TAMs into classically activated macrophages (M1) based on hydroxypropyl chitin (HPCH), tannic acid and ferric ions (HTA). We found that HTA had better photothermal efficiency than a pure hydrogel; its photothermal repeatability is good and it can be NIR (808 nm) irradiated as needed. In addition, the precooled hydrogel solution can be injected into the tumor and it can rapidly gel in situ. In vitro, HTA with NIR irradiation (HTA + NIR) induced the apoptosis of K7M2 cancer cells. In vivo, the local administration of HTA + NIR exerted photothermal killing of primary tumors and reprogramming of TAMs into M1-type macrophages in the TME. Therefore, the injectable photothermally active antitumor hydrogel has great potential for modulating the TME to treat bone tumors.
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Affiliation(s)
- Guowen Luo
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, China. .,Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China.
| | - Ziyang Xu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, China. .,Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China.
| | - Hua Zhong
- Department of Orthopaedics, The Fifth Affiliated Hospital, Southern Medical University, No.566, Congcheng Road, Conghua District, Guangzhou, Guangdong Province, 510900, China
| | - Hongwei Shao
- Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China. .,Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, No. 437, Ma Liu Shui, Shatin, New Territories, Hong Kong SAR, 999077, China
| | - Hongyi Liao
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, China.
| | - Nan Liu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, China.
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, China.
| | - Yu Zhang
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, 510006, China. .,Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China.
| | - Xiongfa Ji
- Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China.
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5
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Maitani K, Kadowaki M, Yasuhara Y, Yamaguchi S, Kubo T. Squamous Cell Carcinoma of the Scalp Arising in a Site of Synthetic Hair Grafts. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2022; 10:e4428. [PMID: 35923983 PMCID: PMC9325334 DOI: 10.1097/gox.0000000000004428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/19/2022] [Indexed: 11/25/2022]
Abstract
Synthetic hair implantation was developed in the 1970s and initially gained popularity until major cutaneous complications, such as facial swelling, severe dermatitis, recurrent cellulitis, and cicatricial alopecia, became an issue. In particular, the procedure has been suggested to have a possible causal relationship with squamous cell carcinoma (SCC). This article describes the third reported case in the English literature of SCC arising in a site of synthetic hair grafts. The patient was an 80-year-old man with a prominent verrucous tumor in the parietal region; he had undergone synthetic hair implantation for the past 28 years. The pathological diagnosis of SCC was made by dermal punch biopsy, and computed tomography images revealed cranial osteolytic changes, with possible direct dural tumor invasion. Extensive resection of the tumor and reconstruction were performed following downsizing radiotherapy. The protruding tumor was excised with the adjacent portion of the parietal bone. Several synthetic hair grafts were found stuck in the cranium. The defect area was reconstructed with a synthetic bone material and a free latissimus dorsi muscle flap with skin graft. The pathological examination revealed well-differentiated SCC surrounded by numerous synthetic hair grafts inducing inflammatory cell infiltration and severe cicatrizing fibrous changes. The postoperative course was uneventful, and no recurrence or metastasis was observed at 9 months postoperatively.
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6
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Carvalho J. A computational model of organism development and carcinogenesis resulting from cells' bioelectric properties and communication. Sci Rep 2022; 12:9206. [PMID: 35654933 PMCID: PMC9163332 DOI: 10.1038/s41598-022-13281-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 05/23/2022] [Indexed: 11/15/2022] Open
Abstract
A sound theory of biological organization is clearly missing for a better interpretation of observational results and faster progress in understanding life complexity. The availability of such a theory represents a fundamental progress in explaining both normal and pathological organism development. The present work introduces a computational implementation of some principles of a theory of organism development, namely that the default state of cells is proliferation and motility, and includes the principle of variation and organization by closure of constraints. In the present model, the bioelectric context of cells and tissue is the field responsible for organization, as it regulates cell proliferation and the level of communication driving the system's evolution. Starting from a depolarized (proliferative) cell, the organism grows to a certain size, limited by the increasingly polarized state after successive proliferation events. The system reaches homeostasis, with a depolarized core (proliferative cells) surrounded by a rim of polarized cells (non-proliferative in this condition). This state is resilient to cell death (random or due to injure) and to limited depolarization (potentially carcinogenic) events. Carcinogenesis is introduced through a localized event (a spot of depolarized cells) or by random depolarization of cells in the tissue, which returns cells to their initial proliferative state. The normalization of the bioelectric condition can reverse this out-of-equilibrium state to a new homeostatic one. This simplified model of embryogenesis, tissue organization and carcinogenesis, based on non-excitable cells' bioelectric properties, can be made more realistic with the introduction of other components, like biochemical fields and mechanical interactions, which are fundamental for a more faithful representation of reality. However, even a simple model can give insight for new approaches in complex systems and suggest new experimental tests, focused in its predictions and interpreted under a new paradigm.
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Affiliation(s)
- Joao Carvalho
- CFisUC, Department of Physics, University of Coimbra, Coimbra, Portugal.
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7
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Cao T, Tong W, Feng F, Zhang S, Li Y, Liang S, Wang X, Chen Z, Zhang Y. H 2O 2 generation enhancement by ultrasonic nebulisation with a zinc layer for spray disinfection. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2022. [PMID: 34899039 DOI: 10.1016/j.cej.2022.134886] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
With the outbreak of COVID-19, microbial pollution has gained increasing attention as a threat to human health. Consequently, many research efforts are being devoted to the development of efficient disinfection methods. In this context, hydrogen peroxide (H2O2) stands out as a green and broad-spectrum disinfectant, which can be produced and sprayed in the air directly by cavitation in ultrasonic nebulisation. However, the yield of H2O2 obtained by ultrasonic nebulisation is too low to satisfy the requirements for disinfection by spraying and needs to be improved to achieve efficient disinfection of the air and objects. Herein, we report the introduction of a zinc layer into an ultrasonic nebuliser to improve the production of H2O2 and generate additional Zn2+ by self-corrosion, achieving good disinfecting performance. Specifically, a zinc layer was assembled on the oscillator plate of a commercial ultrasonic nebuliser, resulting in a 21-fold increase in the yield of H2O2 and the production of 4.75 μg/mL Zn2+ in the spraying droplets. When the generated water mist was used to treat a bottle polluted with Escherichia coli for 30 min, the sterilisation rate reached 93.53%. This ultrasonic nebulisation using a functional zinc layer successfully enhanced the production of H2O2 while generating Zn2+, providing a platform for the development of new methodologies of spray disinfection.
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Affiliation(s)
- Tingting Cao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Wangshu Tong
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Feng Feng
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Shuting Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Yanan Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Shaojie Liang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Xin Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Zhensheng Chen
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
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8
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BRAF Mutation Is Associated with Hyperplastic Polyp-Associated Gastric Cancer. Int J Mol Sci 2021; 22:ijms222312724. [PMID: 34884530 PMCID: PMC8657452 DOI: 10.3390/ijms222312724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 12/24/2022] Open
Abstract
Gastric hyperplastic polyps (GHP) are frequently found to be benign polyps and have been considered to have a low carcinogenic potential. The characteristics of the hyperplastic polyp-associated gastric cancer (HPAGC) remain unclear. Therefore, we analyzed samples from 102 GHP patients and identified 20 low-grade atypical GHPs (19.6%), 7 high-grade atypical GHPs (6.9%), and 5 intramucosal cancer samples (4.9%). GHP atypia was more common in the elderly and increased with increasing polyp size. In particular, polyps larger than 1 cm were associated with a higher grade and cancer. Furthermore, mucus production decreased with increasing atypia. Although no correlation was found between atypia and Helicobacter pylori infection or intestinal metaplasia, enhanced proliferative ability (Ki-67) did correlate with atypia, as did nuclear 8-hydroxy-2'-deoxyguanosine levels. Interestingly, 4-hydroxynonenal levels in granulation tissue and the area ratio of granulation tissue within polyps also correlated with GHP atypia. In five cases of HPAGC, three cases exhibited caudal type homeobox transcription factor (CDX2)-positive cells and a mixed mucin phenotype, which is considered to be related to H. pylori infection. By contrast, two cases were CDX2 negative, with a gastric mucin phenotype, and H. pylori infection was not observed in the tumor or the surrounding mucosa. In these cases, a v-raf murine sarcoma viral oncogene homolog B1 (BRAF) mutation (V600E) was detected. All cancer samples showed high stemness and p53 protein accumulation, but no KRAS mutations. The molecular and phenotypic characteristics of the cases characterized by BRAF mutations may represent a novel subtype of HPAGC, reflecting a conserved pathway to oncogenesis that does not involve H. pylori infection. These findings are worthy of further investigation in a large-scale study with a substantial cohort of HPAGC patients to establish their clinical significance.
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9
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Love EK, Leibman NF, Ringold R, Lamb K. Serum haptoglobin concentrations in feline inflammatory bowel disease and small-cell alimentary lymphoma: a potential biomarker for feline chronic enteropathies. J Feline Med Surg 2021; 23:959-964. [PMID: 33541236 PMCID: PMC11197119 DOI: 10.1177/1098612x21991448] [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] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate serum haptoglobin as a biomarker to differentiate between small-cell alimentary lymphoma and inflammatory bowel disease in cats. METHODS Client-owned domestic cats with and without chronic gastrointestinal signs were enrolled in the study. Serum was collected from each patient and serum haptoglobin levels were measured using ELISA. In cats with gastrointestinal signs, histopathologic evaluation of endoscopic biopsies harvested from the intestinal tract was used to separate them into inflammatory bowel disease and small-cell lymphoma cohorts. Serum haptoglobin levels were statistically analyzed and compared among the three groups: healthy cats; cats with inflammatory bowel disease; and cats with small-cell alimentary lymphoma. RESULTS Sixty-two cats were enrolled in the study, including 20 clinically normal cats, 14 cats with small-cell alimentary lymphoma and 28 cats with inflammatory bowel disease. The mean ± SD serum haptoglobin was 73.2 ± 39.1 mg/dl in normal cats, 115.3 ± 72.8 mg/dl in cats with inflammatory bowel disease and 133.1 ± 86.1 mg/dl in cats with small-cell alimentary lymphoma. Cats with inflammatory bowel disease and lymphoma had significantly higher serum haptoglobin than controls, with P values of 0.0382 and 0.0138, respectively. There was no statistical difference between the inflammatory bowel disease and lymphoma cohorts (P = 0.4235). For every one unit increase in serum haptoglobin, the odds of gastrointestinal inflammatory disease (inflammatory bowel disease or small-cell alimentary lymphoma) increased by 1.41% (P = 0.0165). CONCLUSIONS AND RELEVANCE Serum haptoglobin is a useful biomarker for distinguishing between normal cats and those with gastrointestinal inflammatory disease, but it could not significantly differentiate between inflammatory bowel disease and lymphoma. Additional studies may be beneficial in determining the prognostic significance of serum haptoglobin as it may relate to the severity of gastrointestinal inflammation.
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Affiliation(s)
- Edwina K Love
- The Cancer Institute, Animal Medical Center, New York, NY, USA
| | | | | | - Kenneth Lamb
- Lamb Statistical Consulting, West St Paul, MN, USA
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10
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Vechetti IJ, Wen Y, Hoffman JF, Alimov AP, Vergara VB, Kalinich JF, Gaitens JM, Hines SE, McDiarmid MA, McCarthy JJ, Peterson CA. Urine miRNAs as potential biomarkers for systemic reactions induced by exposure to embedded metal. Biomark Med 2021; 15:1397-1410. [PMID: 34541869 DOI: 10.2217/bmm-2021-0120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Aim: Explore the potential of urine microRNAs as biomarkers that may reflect the biological responses to pure metals embedded in skeletal muscle over time. Materials & methods: We tested a panel of military-relevant metals embedded in the gastrocnemius muscles of 3-month-old, male, Sprague-Dawley rats (n = 8/group) for a duration of 1, 3, 6 and 12 months, and performed small RNA-sequencing on the urine samples. Results: Results provide potential tissue targets affected by metal exposure and a list of unique or common urine microRNA biomarkers indicative of exposure to various metals, highlighting a complex systemic response. Conclusion: We have identified a panel of miRNAs as potential urine biomarkers to reflect the complex systemic response to embedded metal exposure.
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Affiliation(s)
- Ivan J Vechetti
- Department of Nutrition & Health Sciences, College of Education & Human Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Yuan Wen
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
| | - Jessica F Hoffman
- Internal Contamination & Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, MD 20814, USA
| | - Alexander P Alimov
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Vernieda B Vergara
- Internal Contamination & Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, MD 20814, USA
| | - John F Kalinich
- Internal Contamination & Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, MD 20814, USA
| | - Joanna M Gaitens
- Department of Veterans Affairs Medical Center Baltimore, Baltimore, MD 21201, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Stella E Hines
- Department of Veterans Affairs Medical Center Baltimore, Baltimore, MD 21201, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Melissa A McDiarmid
- Department of Veterans Affairs Medical Center Baltimore, Baltimore, MD 21201, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - John J McCarthy
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Charlotte A Peterson
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, KY 40536, USA
- Center for Muscle Biology, University of Kentucky, Lexington, KY 40536, USA
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11
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A bioelectric model of carcinogenesis, including propagation of cell membrane depolarization and reversal therapies. Sci Rep 2021; 11:13607. [PMID: 34193902 PMCID: PMC8245601 DOI: 10.1038/s41598-021-92951-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/19/2021] [Indexed: 12/26/2022] Open
Abstract
As the main theory of carcinogenesis, the Somatic Mutation Theory, increasingly presents difficulties to explain some experimental observations, different theories are being proposed. A major alternative approach is the Tissue Organization Field Theory, which explains cancer origin as a tissue regulation disease instead of having a mainly cellular origin. This work fits in the latter hypothesis, proposing the bioelectric field, in particular the cell membrane polarization state, and ionic exchange through ion channels and gap junctions, as an important mechanism of cell communication and tissue organization and regulation. Taking into account recent experimental results and proposed bioelectric models, a computational model of cancer initiation was developed, including the propagation of a cell depolarization wave in the tissue under consideration. Cell depolarization leads to a change in its state, with the activation and deactivation of several regulation pathways, increasing cell proliferation and motility, changing its epigenetic state to a more stem cell-like behavior without the requirement of genomic mutation. The intercellular communication via gap junctions leads, in certain circumstances, to a bioelectric state propagation to neighbor cells, in a chain-like reaction, till an electric discontinuity is reached. However, this is a reversible process, and it was shown experimentally that, by implementing a therapy targeted on cell ion exchange channels, it is possible to reverse the state and repolarize cells. This mechanism can be an important alternative way in cancer prevention, diagnosis and therapy, and new experiments are proposed to test the presented hypothesis.
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12
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Hoffman JF, Vergara VB, Kalinich JF. Brain region- and metal-specific effects of embedded metals in a shrapnel wound model in the rat. Neurotoxicology 2021; 83:116-128. [PMID: 33453298 DOI: 10.1016/j.neuro.2021.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/03/2021] [Accepted: 01/03/2021] [Indexed: 02/07/2023]
Abstract
The health effects of prolonged exposure to embedded metal fragments, such as those found in shrapnel wounds sustained by an increasing number of military personnel, are not well known. As part of a large collaborative effort to expand this knowledge, we use an animal model of shrapnel wounds originally developed to investigate effects of embedded depleted uranium to investigate effects of military-relevant metals tungsten, nickel, cobalt, iron, copper, aluminum, lead, and depleted uranium compared to an inert control, tantalum. Rats are surgically implanted with pellets of one of the metals of interest in the gastrocnemius (leg) muscle and tracked until 1 month, 3 months, 6 months, or 12 months from the time of implant, at which point they are euthanized and multiple organs and tissue samples are collected for inspection. Here we focus on four regions of the brain: frontal cortex, hippocampus, amygdala, and cerebellum. We examined changes in accumulated metal concentration in each region as well as changes in expression of proteins related to blood brain barrier tight junction formation, occludin and ZO-1, and synapse function, PSD95, spinophilin, and synaptotagmin. We report few changes in metal accumulation or blood brain barrier protein expression, but a large number of synapse proteins have reduced expression levels, particularly within the first 6 months of exposure, but there are regional and metal-specific differences in effects.
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Affiliation(s)
- Jessica F Hoffman
- Internal Contamination and Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, MD, USA
| | - Vernieda B Vergara
- Internal Contamination and Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, MD, USA
| | - John F Kalinich
- Internal Contamination and Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, MD, USA.
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13
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Okada F, Izutsu R, Goto K, Osaki M. Inflammation-Related Carcinogenesis: Lessons from Animal Models to Clinical Aspects. Cancers (Basel) 2021; 13:cancers13040921. [PMID: 33671768 PMCID: PMC7926701 DOI: 10.3390/cancers13040921] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary In multicellular organisms, inflammation is the body’s most primitive and essential protective response against any external agent. Inflammation, however, not only causes various modern diseases such as cardiovascular disorders, neurological disorders, autoimmune diseases, metabolic syndrome, infectious diseases, and cancer but also shortens the healthy life expectancy. This review focuses on the onset of carcinogenesis due to chronic inflammation caused by pathogen infections and inhalation/ingestion of foreign substances. This study summarizes animal models associated with inflammation-related carcinogenesis by organ. By determining factors common to inflammatory carcinogenesis models, we examined strategies for the prevention and treatment of inflammatory carcinogenesis in humans. Abstract Inflammation-related carcinogenesis has long been known as one of the carcinogenesis patterns in humans. Common carcinogenic factors are inflammation caused by infection with pathogens or the uptake of foreign substances from the environment into the body. Inflammation-related carcinogenesis as a cause for cancer-related death worldwide accounts for approximately 20%, and the incidence varies widely by continent, country, and even region of the country and can be affected by economic status or development. Many novel approaches are currently available concerning the development of animal models to elucidate inflammation-related carcinogenesis. By learning from the oldest to the latest animal models for each organ, we sought to uncover the essential common causes of inflammation-related carcinogenesis. This review confirmed that a common etiology of organ-specific animal models that mimic human inflammation-related carcinogenesis is prolonged exudation of inflammatory cells. Genotoxicity or epigenetic modifications by inflammatory cells resulted in gene mutations or altered gene expression, respectively. Inflammatory cytokines/growth factors released from inflammatory cells promote cell proliferation and repair tissue injury, and inflammation serves as a “carcinogenic niche”, because these fundamental biological events are common to all types of carcinogenesis, not just inflammation-related carcinogenesis. Since clinical strategies are needed to prevent carcinogenesis, we propose the therapeutic apheresis of inflammatory cells as a means of eliminating fundamental cause of inflammation-related carcinogenesis.
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Affiliation(s)
- Futoshi Okada
- Division of Experimental Pathology, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (R.I.); (K.G.); (M.O.)
- Chromosome Engineering Research Center, Tottori University, Yonago 683-8503, Japan
- Correspondence: ; Tel.: +81-859-38-6241
| | - Runa Izutsu
- Division of Experimental Pathology, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (R.I.); (K.G.); (M.O.)
| | - Keisuke Goto
- Division of Experimental Pathology, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (R.I.); (K.G.); (M.O.)
- Division of Gastrointestinal and Pediatric Surgery, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Mitsuhiko Osaki
- Division of Experimental Pathology, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan; (R.I.); (K.G.); (M.O.)
- Chromosome Engineering Research Center, Tottori University, Yonago 683-8503, Japan
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14
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Wen Y, Vechetti IJ, Alimov AP, Hoffman JF, Vergara VB, Kalinich JF, McCarthy JJ, Peterson CA. Time-course analysis of the effect of embedded metal on skeletal muscle gene expression. Physiol Genomics 2020; 52:575-587. [PMID: 33017228 DOI: 10.1152/physiolgenomics.00096.2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
As a consequence of military operations, many veterans suffer from penetrating wounds and long-term retention of military-grade heavy metal fragments. Fragments vary in size and location, and complete surgical removal may not be feasible or beneficial in all cases. Increasing evidence suggests retention of heavy metal fragments may have serious biological implications, including increased risks for malignant transformation. Previous studies assessed the tumorigenic effects of metal alloys in rats, demonstrating combinations of metals are sufficient to induce tumor formation after prolonged retention in skeletal muscle tissue. In this study, we analyzed transcriptional changes in skeletal muscle tissue in response to eight different military-relevant pure metals over 12 mo. We found that most transcriptional changes occur at 1 and 3 mo after metal pellets are embedded in skeletal muscle and these effects resolve at 6 and 12 mo. We also report significant immunogenic effects of nickel and cobalt and suppressive effects of lead and depleted uranium on gene expression. Overall, skeletal muscle exhibits a remarkable capacity to adapt to and recover from internalized metal fragments; however, the cellular response to chronic exposure may be restricted to the metal-tissue interface. These data suggest that unless affected regions are specifically captured by biopsy, it would be difficult to reliably detect changes in muscle gene expression that would be indicative of long-term adverse health outcomes.
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Affiliation(s)
- Yuan Wen
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, Kentucky.,Center for Muscle Biology, University of Kentucky, Lexington, Kentucky
| | - Ivan J Vechetti
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky.,Department of Physiology, College of Medicine, University of Kentucky, Lexington, Kentucky
| | - Alexander P Alimov
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky.,Department of Physiology, College of Medicine, University of Kentucky, Lexington, Kentucky
| | - Jessica F Hoffman
- Internal Contamination and Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, Maryland
| | - Vernieda B Vergara
- Internal Contamination and Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, Maryland
| | - John F Kalinich
- Internal Contamination and Metal Toxicity Program, Armed Forces Radiobiology Research Institute, Uniformed Services University, Bethesda, Maryland
| | - John J McCarthy
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky.,Department of Physiology, College of Medicine, University of Kentucky, Lexington, Kentucky
| | - Charlotte A Peterson
- Department of Physical Therapy, College of Health Sciences, University of Kentucky, Lexington, Kentucky.,Center for Muscle Biology, University of Kentucky, Lexington, Kentucky
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15
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Gaitens JM, Potter BK, D'Alleyrand JG, Overmann AL, Gochfeld M, Smith DR, Breyer R, McDiarmid MA. The management of embedded metal fragment patients and the role of chelation Therapy: A workshop of the Department of Veterans Affairs-Walter Reed National Medical Center. Am J Ind Med 2020; 63:381-393. [PMID: 32144801 DOI: 10.1002/ajim.23098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/10/2020] [Accepted: 02/21/2020] [Indexed: 01/12/2023]
Abstract
Exposure to retained metal fragments from war-related injuries can result in increased systemic metal concentrations, thereby posing potential health risks to target organs far from the site of injury. Given the large number of veterans who have retained fragments and the lack of clear guidance on how to medically manage these individuals, the Department of Veterans Affairs (VA) convened a meeting of chelation experts and clinicians who care for embedded fragment patients to discuss current practices and provide medical management guidance. Based on this group's clinical expertise and review of published literature, the evidence presented suggests that, at least in the case of lead fragments, short-term chelation therapy may be beneficial for embedded fragment patients experiencing acute symptoms associated with metal toxicity; however, in the absence of clinical symptoms or significantly elevated blood lead concentrations (greater than 80 µg/dL), chelation therapy may offer little to no benefit for individuals with retained fragments and pose greater risks due to remobilization of metals stored in bone and other soft tissues. The combination of periodic biomonitoring to assess metal body burden, longitudinal fragment imaging, and selective fragment removal when metal concentrations approach critical injury thresholds offers a more conservative management approach to caring for patients with embedded fragments.
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Affiliation(s)
- Joanna M. Gaitens
- Department of Veterans Affairs Medical Center Baltimore and Department of MedicineUniversity of Maryland School of MedicineBaltimore Maryland
| | - Benjamin K. Potter
- Department of OrthopaedicsWalter Reed National Military Medical CenterBethesda Maryland
| | | | - Archie L. Overmann
- Department of OrthopaedicsWalter Reed National Military Medical CenterBethesda Maryland
| | - Michael Gochfeld
- Department of Environmental and Occupational Health, Environmental and Occupational Health Sciences InstituteRutgers Robert Wood Johnson Medical SchoolPiscataway New Jersey
| | - Donald R. Smith
- Department of Microbiology and Environmental ToxicologyUniversity of CaliforniaSanta Cruz California
| | - Richard Breyer
- Department of RadiologyBaltimore Veterans Affairs Medical CenterBaltimore Maryland
| | - Melissa A. McDiarmid
- Department of Veterans Affairs Medical Center Baltimore and Department of MedicineUniversity of Maryland School of MedicineBaltimore Maryland
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16
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Jo VY, Schoen FJ. Tumorigenesis and Biomaterials. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00053-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Setyo L, Sabater M, Young A, Rickman BH. Metastatic Osteolytic Angioleiomyosarcoma Induced by a Foreign Body in a Kangaroo (Macropus giganteus). Aust Vet J 2019; 97:357-360. [PMID: 31286481 DOI: 10.1111/avj.12849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 05/23/2019] [Accepted: 05/26/2019] [Indexed: 11/30/2022]
Abstract
An adult female Eastern Grey kangaroo (Macropus giganteus) was examined for lameness due to a mass located at the right tibiotarsal joint. Radiographs revealed a metal arrowhead-shaped foreign body within the mass alongside a pathologic fracture. Grossly, at necropsy, there was a multilobulated and haemorrhagic mass with intralesional metal fragments, associated osteolysis of the tibiotarsus and pulmonary metastatic nodules. Histologically the neoplasm was composed of plump elongated and fusiform cells that often formed concentrically around small vessels. The pulmonary nodules were composed of similar neoplastic cells, necrosis and haemorrhage. Neoplastic cells were positive immunohistochemically for vimentin and smooth muscle actin. The histological features, immunohistochemical profiles and behaviour of this tumour support a diagnosis of a primary angioleiomyosarcoma with lung metastasis associated with a metal foreign body.
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Affiliation(s)
- L Setyo
- The University of Sydney, University of Sydney Teaching Hospital Camden, 410 Werombi Rd, Camden, NSW, 2570
| | - M Sabater
- The University of Sydney, University of Sydney Teaching Hospital Camden, 410 Werombi Rd, Camden, NSW, 2570
| | - A Young
- The University of Sydney, University of Sydney Teaching Hospital Camden, 410 Werombi Rd, Camden, NSW, 2570
| | - B H Rickman
- The University of Sydney, University of Sydney Teaching Hospital Camden, 410 Werombi Rd, Camden, NSW, 2570
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Hu C, Wang G, Yin W, Zhou Y, Hou J, Wang X, Chen W, Yuan J. Central obesity transition increased urinary levels of 8-hydroxydeoxyguanosine in male adults: A 3-year follow up study. Metabolism 2019; 91:53-60. [PMID: 30513280 DOI: 10.1016/j.metabol.2018.11.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/19/2018] [Accepted: 11/27/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Association of oxidative DNA damage with gain in anthropometric indices has not been fully elucidated. METHODS In this study, participants (n = 1151) were derived from the baseline visit of Wuhan residents in the Wuhan-Zhuhai Cohort Study. The participants finished the physical examinations at both baseline and 3-year follow up. Urinary levels of 8-hydroxydeoxyguanosine (8-OHdG) were measured by gradient-elution high performance liquid chromatography method and then calibrated by urinary creatinine (Cr) values. RESULTS Generalized linear models showed that after adjusted for confounding factors, baseline central obesity individuals with a ≥2.5% hip circumference (HC) loss or >5% HC gain had a 0.290 μmol/mol Cr (95% confidence interval (CI): 0.108, 0.472) or 0.553 μmol/mol Cr (95% CI: 0.273, 0.833) increase in urinary 8-OHdG levels compared with those with a -2.5%-2.5% HC gain (both P < 0.05). Moreover, compared with non-central obesity at both baseline and 3-year follow-up, we observed that central obese men at both baseline and 3-year follow-up had a 0.46 μmol/mol Cr (95% CI: 0.16, 0.75) increased in urinary 8-OHdG levels. CONCLUSIONS HC gain showed dose-dependent associations with urinary 8-OHdG levels. Moreover, male central obesity at both baseline and 3-year follow-up had an increased risk for urinary 8-OHdG levels.
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Affiliation(s)
- Chen Hu
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China
| | - Guiyang Wang
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China
| | - Wenjun Yin
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China
| | - Yun Zhou
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China
| | - Jian Hou
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China
| | - Xian Wang
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China
| | - Weihong Chen
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China
| | - Jing Yuan
- Department of Occupational and Environmental Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan 430030, Hubei, PR China.
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Kutova OM, Guryev EL, Sokolova EA, Alzeibak R, Balalaeva IV. Targeted Delivery to Tumors: Multidirectional Strategies to Improve Treatment Efficiency. Cancers (Basel) 2019; 11:E68. [PMID: 30634580 PMCID: PMC6356537 DOI: 10.3390/cancers11010068] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 12/13/2022] Open
Abstract
Malignant tumors are characterized by structural and molecular peculiarities providing a possibility to directionally deliver antitumor drugs with minimal impact on healthy tissues and reduced side effects. Newly formed blood vessels in malignant lesions exhibit chaotic growth, disordered structure, irregular shape and diameter, protrusions, and blind ends, resulting in immature vasculature; the newly formed lymphatic vessels also have aberrant structure. Structural features of the tumor vasculature determine relatively easy penetration of large molecules as well as nanometer-sized particles through a blood⁻tissue barrier and their accumulation in a tumor tissue. Also, malignant cells have altered molecular profile due to significant changes in tumor cell metabolism at every level from the genome to metabolome. Recently, the tumor interaction with cells of immune system becomes the focus of particular attention, that among others findings resulted in extensive study of cells with preferential tropism to tumor. In this review we summarize the information on the diversity of currently existing approaches to targeted drug delivery to tumor, including (i) passive targeting based on the specific features of tumor vasculature, (ii) active targeting which implies a specific binding of the antitumor agent with its molecular target, and (iii) cell-mediated tumor targeting.
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Affiliation(s)
- Olga M Kutova
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Evgenii L Guryev
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Evgeniya A Sokolova
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Razan Alzeibak
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Irina V Balalaeva
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
- The Institute of Molecular Medicine, I.M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya str., Moscow 119991, Russia.
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20
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Kanda Y, Kawaguchi T, Osaki M, Onuma K, Ochiya T, Kitagawa T, Okada F. Fascin protein stabilization by miR-146a implicated in the process of a chronic inflammation-related colon carcinogenesis model. Inflamm Res 2018; 67:839-846. [PMID: 30056535 DOI: 10.1007/s00011-018-1175-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 07/24/2018] [Accepted: 07/26/2018] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE In sporadic colon tumors, multistep process of well-known genetic alterations accelerates carcinogenesis; however, this does not appear to be the case in inflammation-related ones. We previously established a model of inflammation-related colon carcinogenesis using human colonic adenoma cells, and identified fascin as a driver gene of this process. We analyzed the microRNAs involved in the stable fascin expression in colon adenocarcinoma cells. MATERIALS AND METHODS miRNA microarray analysis was performed using FPCK-1-1 adenoma cells and its-derived FPCKpP1-4 adenocarcinoma cells through chronic inflammation. To assess the involvement of miRNA in the inflammation-related carcinogenesis, sphere-forming ability, expression of colon cancer stemness markers, and stability of fascin protein via the proteasome using tough decoy RNA technique. RESULTS We found that 17 miRNAs including miR-146a were upregulated and 16 miRNAs were downregulated in FPCKpP1-4 adenocarcinoma cells. We revealed that miR-146a in the adenocarcinoma cells brought about acquisition of sphere formation, cancer stemness, and inhibition of proteasomal degradation of the fascin protein. CONCLUSIONS We found that stable fascin expression is brought about via the inhibition of proteasome degradation by miR-146a in the process of a chronic inflammation-related colon carcinogenesis.
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Affiliation(s)
- Yusuke Kanda
- Division of Pathological Biochemistry, Tottori University Faculty of Medicine, 86 Nishicho, Yonago, 683-8503, Japan
| | - Tokuichi Kawaguchi
- Japanese Foundation for Cancer Research, Cancer Institute, Tokyo, 135-8550, Japan
| | - Mitsuhiko Osaki
- Division of Pathological Biochemistry, Tottori University Faculty of Medicine, 86 Nishicho, Yonago, 683-8503, Japan
- Chromosome Engineering Research Center, Tottori University, Yonago, 683-8503, Japan
| | - Kunishige Onuma
- Division of Pathological Biochemistry, Tottori University Faculty of Medicine, 86 Nishicho, Yonago, 683-8503, Japan
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Tomoyuki Kitagawa
- Japanese Foundation for Cancer Research, Cancer Institute, Tokyo, 135-8550, Japan
| | - Futoshi Okada
- Division of Pathological Biochemistry, Tottori University Faculty of Medicine, 86 Nishicho, Yonago, 683-8503, Japan.
- Chromosome Engineering Research Center, Tottori University, Yonago, 683-8503, Japan.
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Kanda Y, Osaki M, Okada F. Chemopreventive Strategies for Inflammation-Related Carcinogenesis: Current Status and Future Direction. Int J Mol Sci 2017; 18:E867. [PMID: 28422073 PMCID: PMC5412448 DOI: 10.3390/ijms18040867] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 04/14/2017] [Accepted: 04/17/2017] [Indexed: 02/07/2023] Open
Abstract
A sustained and chronically-inflamed environment is characterized by the presence of heterogeneous inflammatory cellular components, including neutrophils, macrophages, lymphocytes and fibroblasts. These infiltrated cells produce growth stimulating mediators (inflammatory cytokines and growth factors), chemotactic factors (chemokines) and genotoxic substances (reactive oxygen species and nitrogen oxide) and induce DNA damage and methylation. Therefore, chronic inflammation serves as an intrinsic niche for carcinogenesis and tumor progression. In this article, we summarize the up-to-date findings regarding definitive/possible causes and mechanisms of inflammation-related carcinogenesis derived from experimental and clinical studies. We also propose 10 strategies, as well as candidate agents for the prevention of inflammation-related carcinogenesis.
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Affiliation(s)
- Yusuke Kanda
- Division of Pathological Biochemistry, Tottori University Faculty of Medicine, Yonago, Tottori 683-8503, Japan.
| | - Mitsuhiko Osaki
- Division of Pathological Biochemistry, Tottori University Faculty of Medicine, Yonago, Tottori 683-8503, Japan.
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori 683-8503, Japan.
| | - Futoshi Okada
- Division of Pathological Biochemistry, Tottori University Faculty of Medicine, Yonago, Tottori 683-8503, Japan.
- Chromosome Engineering Research Center, Tottori University, Yonago, Tottori 683-8503, Japan.
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Ruple A, Morley PS. Risk Factors Associated with Development of Histiocytic Sarcoma in Bernese Mountain Dogs. J Vet Intern Med 2016; 30:1197-203. [PMID: 27160025 PMCID: PMC5084741 DOI: 10.1111/jvim.13964] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/05/2016] [Accepted: 04/21/2016] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Histiocytic sarcoma (HS) is a rare but aggressive malignancy in humans that is poorly responsive to existing treatments. Although rare in most breeds of dogs, HS is common in Bernese mountain dogs (BMDs). OBJECTIVE Determine risk factors associated with development of HS in BMD. ANIMALS A total of 216 BMD were registered with the Berner-Garde Foundation. METHODS An internet-based cross-sectional survey was used to collect information from owners of BMD diagnosed with HS and owners of disease-free littermates of dogs with HS. Mixed-effects logistic regression (MELR) and conditional logistic regression (CLR) were used in parallel to examine associations between potential risk factors and the occurrence of HS. RESULTS When controlling for litter as a marker of relatedness, dogs diagnosed with orthopedic conditions were found to be more likely to develop HS (MELR, OR: 2.5, 95% CI: 1.5, 5.2; CLR, OR: 2.81, 95% CI: 1.1, 7.3), whereas dogs receiving prescription anti-inflammatory medications were found to be at considerably lower risk of developing HS (MELR, OR: 0.42, 95% CI: 0.2, 0.8; CLR, OR: 0.32, 95% CI: 0.1, 0.8). CONCLUSIONS AND CLINICAL IMPORTANCE These results suggest inflammation may be a modifiable risk factor for the development of HS in BMD.
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Affiliation(s)
- A Ruple
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - P S Morley
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
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Velnar T, Bunc G, Klobucar R, Gradisnik L. Biomaterials and host versus graft response: a short review. Bosn J Basic Med Sci 2016; 16:82-90. [PMID: 26894284 PMCID: PMC4853000 DOI: 10.17305/bjbms.2016.525] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 02/18/2016] [Accepted: 07/16/2015] [Indexed: 01/27/2023] Open
Abstract
Biomaterials and biotechnology are increasing becoming an important area in modern medicine. The main aim in this area is the development of materials, which are biocompatible to normal tissue. Tissue-implant interactions with molecular, biological and cellular characteristics at the implant-tissue interface are important for the use and development of implants. Implantation may cause an inflammatory and immune response in tissue, foreign body reaction, systemic toxicity and imminent infection. Tissue-implant interactions determine the implant life-period. The aims of the study are to consider the biological response to implants. Biomaterials and host reactions to implants and their mechanisms are also briefly discussed.
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Affiliation(s)
- Tomaz Velnar
- University Medical Centre Maribor, Department of Neurosurgery.
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Yang Z, Ge C, Liu J, Chong Y, Gu Z, Jimenez-Cruz CA, Chai Z, Zhou R. Destruction of amyloid fibrils by graphene through penetration and extraction of peptides. NANOSCALE 2015; 7:18725-37. [PMID: 26503908 DOI: 10.1039/c5nr01172h] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Current therapies for Alzheimer's disease (AD) can provide a moderate symptomatic reduction or delay progression at various stages of the disease, but such treatments ultimately do not arrest the advancement of AD. As such, novel approaches for AD treatment and prevention are urgently needed. We here provide both experimental and computational evidence that pristine graphene and graphene-oxide nanosheets can inhibit Aβ peptide monomer fibrillation and clear mature amyloid fibrils, thus impacting the central molecular superstructures correlated with AD pathogenesis. Our molecular dynamics simulations for the first time reveal that graphene nanosheets can penetrate and extract a large number of peptides from pre-formed amyloid fibrils; these effects seem to be related to exceptionally strong dispersion interactions between peptides and graphene that are further enhanced by strong π-π stacking between the aromatic residues of extracted Aβ peptides and the graphene surface. Atomic force microscopy images confirm these predictions by demonstrating that mature amyloid fibrils can be cut into pieces and cleared by graphene oxides. Thioflavin fluorescence assays further illustrate the detailed dynamic processes by which graphene induces inhibition of monomer aggregation and clearance of mature amyloid fibrils, respectively. Cell viability and ROS assays indicate that graphene oxide can indeed mitigate cytotoxicity of Aβ peptide amyloids. Our findings provide new insights into the underlying molecular mechanisms that define graphene-amyloid interaction and suggest that further research on nanotherapies for Alzheimer's and other protein aggregation-related diseases is warranted.
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Affiliation(s)
- Zaixing Yang
- Institute of Quantitative Biology and Medicine, SRMP and RAD-X, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China.
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Kalani A, Kapali M, Orr T, Petrie A, Lawson M. Chronic inflammation predisposing to cancer metastasis: lesson learned from a chronically embedded foreign body in a duodenal diverticulum. J Gastrointest Cancer 2015; 45 Suppl 1:136-9. [PMID: 24633596 DOI: 10.1007/s12029-014-9593-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Amir Kalani
- Division of Internal Medicine, Drexel University College of Medicine, Philadelphia, PA, USA,
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Chong Y, Ge C, Yang Z, Garate JA, Gu Z, Weber JK, Liu J, Zhou R. Reduced Cytotoxicity of Graphene Nanosheets Mediated by Blood-Protein Coating. ACS NANO 2015; 9:5713-24. [PMID: 26040772 DOI: 10.1021/nn5066606] [Citation(s) in RCA: 205] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The advent and pending wide use of nanoscale materials urges a biosafety assessment and safe design of nanomaterials that demonstrate applicability to human medicine. In biological microenvironment, biomolecules will bind onto nanoparticles forming corona and endow nanoparticles new biological identity. Since blood-circulatory system will most likely be the first interaction organ exposed to these nanomaterials, a deep understanding of the basic interaction mechanisms between serum proteins and foreign nanoparticles may help to better clarify the potential risks of nanomaterials and provide guidance on safe design of nanomaterials. In this study, the adsorption of four high-abundance blood proteins onto the carbon-based nanomaterial graphene oxide (GO) and reduced GO (rGO) were investigated via experimental (AFM, florescence spectroscopy, SPR) and simulation-based (molecular dynamics) approaches. Among the proteins in question, we observe competitive binding to the GO surface that features a mélange of distinct packing modes. Our MD simulations reveal that the protein adsorption is mainly enthalpically driven through strong π-π stacking interactions between GO and aromatic protein residues, in addition to hydrophobic interactions. Overall, these results were in line with previous findings related to adsorption of serum proteins onto single-walled carbon nanotubes (SWCNTs), but GO exhibits a dramatic enhancement of adsorption capacity compared to this one-dimensional carbon form. Encouragingly, protein-coated GO resulted in a markedly less cytotoxicity than pristine and protein-coated SWCNTs, suggesting a useful role for this planar nanomaterial in biomedical applications.
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Affiliation(s)
- Yu Chong
- †Institute of Quantitative Biology and Medicine, SRMP and RAD-X, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Cuicui Ge
- †Institute of Quantitative Biology and Medicine, SRMP and RAD-X, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Zaixing Yang
- †Institute of Quantitative Biology and Medicine, SRMP and RAD-X, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jose Antonio Garate
- ‡IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - Zonglin Gu
- †Institute of Quantitative Biology and Medicine, SRMP and RAD-X, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jeffrey K Weber
- ‡IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598, United States
| | - Jiajia Liu
- †Institute of Quantitative Biology and Medicine, SRMP and RAD-X, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Ruhong Zhou
- †Institute of Quantitative Biology and Medicine, SRMP and RAD-X, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
- ‡IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598, United States
- §Department of Chemistry, Columbia University, New York, New York 10027, United States
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Agha-Hosseini F, Mirzaii-Dizgah I, Mahboobi N, Shirazian S, Harirchi I. Serum and Saliva MMP-3 in Patients with OLP and Oral SCC. J Contemp Dent Pract 2015; 16:107-111. [PMID: 25906800 DOI: 10.5005/jp-journals-10024-1645] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Matrix metalloproteinase-3 (MMP-3) plays a key role in development of cancer. The purpose of this study was to assess MMP-3 in the serum and saliva of patients with oral lichen planus (OLP) and oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS Thirty patients with OLP (8 reticular and 22 erosive forms), and 20 patients with OSCC (6 in low stage and 14 in advanced stage), were enrolled in this study, conducted at the Cancer Department, Clinic of Oral Medicine, Tehran University of Medical Sciences. The serum and saliva MMP-3 was assayed by ELISA method. Statistical analysis of the Student's t-test, ANOVA and Pearson correlation coefficient was performed. The mean saliva and serum levels of MMP-3 were significantly higher in patients with OSCC compared with OLP. RESULTS The serum and saliva MMP-3 concentrations increased from reticular form of OLP to erosive form of OLP, and increased further to low stage of OSCC and advanced stage of OSCC. Serum MMP-3 correlated significantly with unstimulated (r = 0.310, p = 0.038) and stimulated (r = 0.365, p < 0.026) saliva MMP-3. CONCLUSION Serum and saliva MMP-3 levels appear associated with OLP and OSCC.
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Affiliation(s)
- Farzaneh Agha-Hosseini
- Department of Oral Medicine/Dental Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran, Phone: +98-21-66402095, e-mail:
| | - Iraj Mirzaii-Dizgah
- Department of Physiology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Nima Mahboobi
- Department of Oral Medicine/Dental Research Center School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Shiva Shirazian
- Department of Oral Medicine/Dental Research Center School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Iraj Harirchi
- Cancer Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
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Nemet AY, Vinker S, Segal O, Mimouni M, Kaiserman I. Epidemiology and Associated Morbidity of Pterygium: A Large, Community-Based Case-Control Study. Semin Ophthalmol 2014; 31:446-51. [PMID: 25392263 DOI: 10.3109/08820538.2014.962169] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND To evaluate the prevalence and risk factors of various conditions among patients with pterygium. METHODS A retrospective observational case control study of 4,037 patients who were diagnosed with pterygium in the Central District of Clalit Health Services in Israel from 2000-2009. A total of 16,054 randomly selected controls from the district HMO members. Personal, medical, and demographic information were extracted from patients' files. We calculated the prevalence of various ocular, systemic, and demographic conditions as risk factors for pterygium. RESULTS The average age of pterygium patients was 58.4 ± 14 years; 56.9% were male. A significant tendency to develop pterygium was found among individuals of lower socioeconomic status (p < 0.001) and in populations living in rural areas (p < 0.001). A logistic regression model adjusted to marital status, socio-economic class, and area of living was performed. The following conditions were significantly associated with pterygium: blepharitis (OR = 1.71; 99.9% CI: 1.53-1.93), chalazia (OR = 1.46; 99.9% CI: (1.19-1.78)), anxiety (OR = 1.14, 99.9% CI: 0.98-1.33), and G6PD deficiency (OR = 1.85; 99.9% CI: 1.11-3.07). Schizophrenia (OR 0.31; 99.9% CI: 0.19-0.50) and smoking (OR 0.82; 99.9% CI: 0.76-0.89) were significantly less prevalent among pterygium patients. CONCLUSIONS Pterygium etiology is multifactorial. Some demographic, systemic, and periocular conditions are significantly more prevalent and some are less prevalent among pterygium patients. Better understanding of the pathophysiological association between those diseases and pterygium may help in its prevention and treatment.
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Affiliation(s)
- Arie Y Nemet
- a Department of Ophthalmology , Meir Medical Center , Kfar Saba , Israel
| | - Shlomo Vinker
- b Department of Family Medicine , Clalit Health Services , Central District , Rehovot , Israel .,c Department of Family Medicine, Sackler Faculty of Medicine , Tel Aviv University , Tel Aviv , Israel , and
| | - Ori Segal
- a Department of Ophthalmology , Meir Medical Center , Kfar Saba , Israel
| | - Michael Mimouni
- a Department of Ophthalmology , Meir Medical Center , Kfar Saba , Israel
| | - Igor Kaiserman
- d Department of Ophthalmology , Barzilai Medical Center, Ashkelon, Israel, Faculty of Health Sciences, Ben-Gurion University , Beer-Sheva , Israel
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Zhou R, Gao H. Cytotoxicity of graphene: recent advances and future perspective. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 6:452-74. [PMID: 24957946 DOI: 10.1002/wnan.1277] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 01/22/2023]
Abstract
Graphene, a unique two-dimensional single-atom-thin nanomaterial with exceptional structural, mechanical, and electronic properties, has spurred an enormous interest in many fields, including biomedical applications, which at the same time ignites a growing concern on its biosafety and potential cytotoxicity to human and animal cells. In this review, we present a summary of some very recent studies on this important subject with both experimental and theoretical approaches. The molecular interactions of graphene with proteins, DNAs, and cell membranes (both bacteria and mammalian cells) are discussed in detail. Severe distortions in structures and functions of these biomacromolecules by graphene are identified and characterized. For example, the graphene is shown to disrupt bacteria cell membranes by insertion/cutting as well as destructive extraction of lipid molecules directly. More interestingly, this cytotoxicity has been shown to have implications in de novo design of nanomedicine, such as graphene-based band-aid, a potential 'green' antibiotics due to its strong physical-based (instead of chemical-based) antibacterial capability. These studies have provided a better understanding of graphene nanotoxicity at both cellular and molecular levels, and also suggested therapeutic potential by using graphene's cytotoxicity against bacteria cells.
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Affiliation(s)
- Ruhong Zhou
- Computational Biology Center, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, USA; Department of Chemistry, Columbia University, New York, NY, USA
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Strickertsson JAB, Desler C, Rasmussen LJ. Impact of bacterial infections on aging and cancer: impairment of DNA repair and mitochondrial function of host cells. Exp Gerontol 2014; 56:164-74. [PMID: 24704713 DOI: 10.1016/j.exger.2014.03.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 03/19/2014] [Accepted: 03/26/2014] [Indexed: 02/06/2023]
Abstract
The commensal floras that inhabit the gastrointestinal tract play critical roles in immune responses, energy metabolism, and even cancer prevention. Pathogenic and out of place commensal bacteria, can however have detrimental effects on the host, by introducing genomic instability and mitochondrial dysfunction, which are hallmarks of both aging and cancer. Helicobacter pylori and Enterococcus faecalis are bacteria of the gastrointestinal tract that have been demonstrated to affect these two hallmarks. These, and other bacteria, have been shown to decrease the transcription and translation of essential DNA repair subunits of major DNA repair pathways and increase production of reactive oxygen species (ROS). Defects in DNA repair cause mutations and genomic instability and are found in several cancers as well as in progeroid syndromes. This review describes our contemporary view on how bacterial infections impact DNA repair and damage, and the consequence on the mitochondrial and nuclear genomes. We argue that in the gastrointestinal tract, these mechanisms can contribute to tumorigenesis as well as cellular aging of the digestive system.
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Affiliation(s)
- Jesper A B Strickertsson
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Claus Desler
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Lene Juel Rasmussen
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, DK-2200 Copenhagen, Denmark.
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Panico C, Nylen E. Procalcitonin beyond the acute phase: novel biomediator properties? BMC Med 2013; 11:189. [PMID: 23984981 PMCID: PMC3765476 DOI: 10.1186/1741-7015-11-189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 08/15/2013] [Indexed: 12/24/2022] Open
Abstract
Since inflammation has been linked to carcinogenic events, discovery of relevant biomarkers may have important preventative implications. Procalcitonin (ProCT) has been shown to be an important prognostic biomarker in severe inflammatory conditions, but there is no data regarding its biomarker role, if any, beyond the acute phase. In a recent study published in BMC Medicine, Cotoi et al. analyzed whether serum ProCT levels in healthy individuals are associated with mortality outcomes. The results are affirmative in that baseline ProCT was shown to be strongly and independently associated with all-cause and cancer mortality and with the incidence of colon cancer in men. By contrast, the study indicated that high sensitivity C-reactive protein was independently associated with cardiovascular mortality but not with cancer mortality in men. Thus, baseline levels of ProCT appear to have prognostic biomarker implications potentially related to its emerging biomediator action(s).
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Affiliation(s)
- Carolina Panico
- Department Endocrinology, VAMC, and George Washington University School of Medicine, Washington, DC, USA.
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Tu Y, Lv M, Xiu P, Huynh T, Zhang M, Castelli M, Liu Z, Huang Q, Fan C, Fang H, Zhou R. Destructive extraction of phospholipids from Escherichia coli membranes by graphene nanosheets. NATURE NANOTECHNOLOGY 2013; 8:594-601. [PMID: 23832191 DOI: 10.1038/nnano.2013.125] [Citation(s) in RCA: 878] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Accepted: 05/28/2013] [Indexed: 05/20/2023]
Abstract
Understanding how nanomaterials interact with cell membranes is related to how they cause cytotoxicity and is therefore critical for designing safer biomedical applications. Recently, graphene (a two-dimensional nanomaterial) was shown to have antibacterial activity on Escherichia coli, but its underlying molecular mechanisms remain unknown. Here we show experimentally and theoretically that pristine graphene and graphene oxide nanosheets can induce the degradation of the inner and outer cell membranes of Escherichia coli, and reduce their viability. Transmission electron microscopy shows three rough stages, and molecular dynamics simulations reveal the atomic details of the process. Graphene nanosheets can penetrate into and extract large amounts of phospholipids from the cell membranes because of the strong dispersion interactions between graphene and lipid molecules. This destructive extraction offers a novel mechanism for the molecular basis of graphene's cytotoxicity and antibacterial activity.
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Affiliation(s)
- Yusong Tu
- Institute of Systems Biology, Shanghai University, Shanghai 200444, China
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Maeda H. The link between infection and cancer: tumor vasculature, free radicals, and drug delivery to tumors via the EPR effect. Cancer Sci 2013; 104:779-89. [PMID: 23495730 PMCID: PMC7657157 DOI: 10.1111/cas.12152] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 03/10/2013] [Indexed: 12/16/2022] Open
Abstract
This review focuses primarily on my own research, including pathogenic mechanisms of microbial infection, vascular permeability in infection and tumors, and effects of nitric oxide (NO), superoxide anion radical (O₂⁻), and 8-nitroguanosine in the enhanced permeability and retention (EPR) effect for the tumor-selective delivery of macromolecular agents (nanomedicines). Infection-induced vascular permeability is mediated by activation of the kinin-generating protease cascade (kallikrein-kinin) triggered by exogenous microbial proteases. A similar mechanism operates in cancer tissues and in carcinomatosis of the pleural and peritoneal cavities. Infection also stimulates O₂⁻ generation via activation of xanthine oxidase while generating NO by inducing NO synthase. These chemicals function in mutation and carcinogenesis and promote inflammation, in which peroxynitrite (a product of O₂⁻ and NO) activates MMP, damages DNA and RNA, and regenerates 8-nitroguanosine and 8-oxoguanosine. We showed vascular permeability by using macromolecular drugs, which are not simply extravasated through the vascular wall into the tumor interstitium but remain there for prolonged periods. We thus discovered the EPR effect, which led to the rational development of tumor-selective delivery of polymer conjugates, micellar and liposomal drugs, and genes. Our styrene-maleic acid copolymer conjugated with neocarzinostatin was the first agent of its kind used to treat hepatoma. The EPR effect occurs not only because of defective vascular architecture but also through the generation of various vascular mediators such as kinin, NO, and vascular endothelial growth factor. Although most solid tumors, including human tumors, show the EPR effect, heterogeneity of tumor tissue may impede drug delivery. This review describes the barriers and countermeasures for improved drug delivery to tumors by using nanomedicines.
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Affiliation(s)
- Hiroshi Maeda
- Institute of Drug Delivery System Research, Sojo University, Kumamoto, Japan.
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Overexpression of peroxiredoxin 2 in pterygium. A proteomic approach. Exp Eye Res 2013; 110:70-5. [DOI: 10.1016/j.exer.2013.03.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 01/16/2013] [Accepted: 03/01/2013] [Indexed: 11/17/2022]
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Jachak AC, Creighton M, Qiu Y, Kane AB, Hurt RH. Biological interactions and safety of graphene materials. MRS BULLETIN 2012; 37:1307-1313. [PMID: 25018584 PMCID: PMC4088959 DOI: 10.1557/mrs.2012.181] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
As graphene technologies progress to commercialization and large-scale manufacturing, issues of material and processing safety will need to be more seriously considered. The single word "graphene" actually represents a family of related materials with large variations in number of layers, surface area, lateral dimensions, stiffness, and surface chemistry. Many of these materials have aerodynamic diameters below 5 μm and can potentially be inhaled into the human lung. Graphene materials show several unique modes of interaction with biological molecules, tissues, and cells. The limited literature suggests that graphene materials can be either benign or harmful and that the biological response varies according to a material's physicochemical properties and biologically effective dose. The present article reviews the current literature on the graphene-biological interface with an emphasis on the mechanisms and fundamental biological responses relevant to material safety and also to potential biomedical applications.
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Affiliation(s)
- Ashish C. Jachak
- Department of Pathology and Laboratory Medicine, Brown University
| | | | - Yang Qiu
- School of Engineering, Brown University
| | - Agnes B. Kane
- Department of Pathology and Laboratory Medicine, Brown University
| | - Robert H. Hurt
- School of Engineering and Institute for Molecular and Nanoscale Innovation, Brown University
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Xu J, Futakuchi M, Shimizu H, Alexander DB, Yanagihara K, Fukamachi K, Suzui M, Kanno J, Hirose A, Ogata A, Sakamoto Y, Nakae D, Omori T, Tsuda H. Multi-walled carbon nanotubes translocate into the pleural cavity and induce visceral mesothelial proliferation in rats. Cancer Sci 2012; 103:2045-50. [PMID: 22938569 DOI: 10.1111/cas.12005] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 08/20/2012] [Accepted: 08/22/2012] [Indexed: 11/30/2022] Open
Abstract
Multi-walled carbon nanotubes have a fibrous structure similar to asbestos and induce mesothelioma when injected into the peritoneal cavity. In the present study, we investigated whether carbon nanotubes administered into the lung through the trachea induce mesothelial lesions. Male F344 rats were treated with 0.5 mL of 500 μg/mL suspensions of multi-walled carbon nanotubes or crocidolite five times over a 9-day period by intrapulmonary spraying. Pleural cavity lavage fluid, lung and chest wall were then collected. Multi-walled carbon nanotubes and crocidolite were found mainly in alveolar macrophages and mediastinal lymph nodes. Importantly, the fibers were also found in the cell pellets of the pleural cavity lavage, mostly in macrophages. Both multi-walled carbon nanotube and crocidolite treatment induced hyperplastic proliferative lesions of the visceral mesothelium, with their proliferating cell nuclear antigen indices approximately 10-fold that of the vehicle control. The hyperplastic lesions were associated with inflammatory cell infiltration and inflammation-induced fibrotic lesions of the pleural tissues. The fibers were not found in the mesothelial proliferative lesions themselves. In the pleural cavity, abundant inflammatory cell infiltration, mainly composed of macrophages, was observed. Conditioned cell culture media of macrophages treated with multi-walled carbon nanotubes and crocidolite and the supernatants of pleural cavity lavage fluid from the dosed rats increased mesothelial cell proliferation in vitro, suggesting that mesothelial proliferative lesions were induced by inflammatory events in the lung and pleural cavity and likely mediated by macrophages. In conclusion, intrapulmonary administration of multi-walled carbon nanotubes, like asbestos, induced mesothelial proliferation potentially associated with mesothelioma development.
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Affiliation(s)
- Jiegou Xu
- Laboratory of Nanotoxicology Project, Nagoya City University, Nagoya, Japan
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Kaplan M, Iyiköşker HI. A new complication of retained surgical gauze: development of malignant fibrous histiocytoma--report of a case with a literature review. World J Surg Oncol 2012; 10:139. [PMID: 22776249 PMCID: PMC3411509 DOI: 10.1186/1477-7819-10-139] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 07/09/2012] [Indexed: 11/25/2022] Open
Abstract
Background Primary visceral malignant fibrous histiocytoma (MFH) is a rare disease, and few cases have been reported in the English literature. However, retained foreign bodies in the abdomen after surgical procedures are important causes of intra-abdominal infections. For legal and ethical reasons, there are few publications in the literature. In this article, we describe for the first time a case of malign abdominal fibrous histiocytoma associated with a surgical sponge forgotten in the abdominal cavity a long time ago. Case presentation A 64-year-old male presented to our surgical department with cachexia, abdominal pain, distention and pyrexia of unknown origin. He had a medical history of abdominal surgery for peptic ulcer perforation 32 years ago. Clinical examination revealed fever with a distended and painful abdominal wall. Radiological imaging of the abdomen showed multiple heterogeneous masses in one large cystic cavityalmost completely filling the abdomen. The patient underwent a laparotomy, and interestingly, opening the cyst revealed retained surgical gauze (RSG). The origin of the tumor was the visceral peritoneum, and it was excised totally. Conclusions Primary intra-abdominal MFH can present as a complication of long-lasting RSG. Therefore, clinicians must remember this while establishing the differential diagnosis for patients with a history of previous abdominal surgery and presenting with symptoms associated with both the tumor and systemic inflammatory response.
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Affiliation(s)
- Mehmet Kaplan
- Department of General Surgery, Medical Park Gaziantep Hospital, Mucahitler mah, 52063 sk, No:2 Sehitkamil, Gaziantep, 27090, Turkey.
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Murphy FA, Schinwald A, Poland CA, Donaldson K. The mechanism of pleural inflammation by long carbon nanotubes: interaction of long fibres with macrophages stimulates them to amplify pro-inflammatory responses in mesothelial cells. Part Fibre Toxicol 2012; 9:8. [PMID: 22472194 PMCID: PMC3352110 DOI: 10.1186/1743-8977-9-8] [Citation(s) in RCA: 152] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 04/03/2012] [Indexed: 11/10/2022] Open
Abstract
Carbon nanotubes (CNT) are high aspect ratio nanoparticles with diameters in the nanometre range but lengths extending up to hundreds of microns. The structural similarities between CNT and asbestos have raised concern that they may pose a similar inhalation hazard. Recently CNT have been shown to elicit a length-dependent, asbestos-like inflammatory response in the pleural cavity of mice, where long fibres caused inflammation but short fibres did not. However the cellular mechanisms governing this response have yet to be elucidated. This study examined the in vitro effects of a range of CNT for their ability to stimulate the release of the acute phase cytokines; IL-1β, TNFα, IL-6 and the chemokine, IL-8 from both Met5a mesothelial cells and THP-1 macrophages. Results showed that direct exposure to CNT resulted in significant cytokine release from the macrophages but not mesothelial cells. This pro-inflammatory response was length dependent but modest and was shown to be a result of frustrated phagocytosis. Furthermore the indirect actions of the CNT were examined by treating the mesothelial cells with conditioned media from CNT-treated macrophages. This resulted in a dramatic amplification of the cytokine release from the mesothelial cells, a response which could be attenuated by inhibition of phagocytosis during the initial macrophage CNT treatments. We therefore hypothesise that long fibres elicit an inflammatory response in the pleural cavity via frustrated phagocytosis in pleural macrophages. The activated macrophages then stimulate an amplified pro-inflammatory cytokine response from the adjacent pleural mesothelial cells. This mechanism for producing a pro-inflammatory environment in the pleural space exposed to long CNT has implications for the general understanding of fibre-related pleural disease and design of safe nanofibres.
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Affiliation(s)
- Fiona A Murphy
- MRC/University of Edinburgh Centre for Inflammation Research, ELEGI Colt Laboratory, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Anja Schinwald
- MRC/University of Edinburgh Centre for Inflammation Research, ELEGI Colt Laboratory, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Craig A Poland
- Institute of Occupational Medicine, Research Avenue North, Riccarton, Edinburgh EH14 4AP, UK
| | - Ken Donaldson
- MRC/University of Edinburgh Centre for Inflammation Research, ELEGI Colt Laboratory, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
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Kotton DN, Muse VV, Nishino M. Case records of the Massachusetts General Hospital. Case 2-2012. A 63-year-old woman with dyspnea and rapidly progressive respiratory failure. N Engl J Med 2012; 366:259-69. [PMID: 22256809 DOI: 10.1056/nejmcpc1109274] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Morrison WB. Inflammation and cancer: a comparative view. J Vet Intern Med 2011; 26:18-31. [PMID: 22151229 DOI: 10.1111/j.1939-1676.2011.00836.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 09/22/2011] [Accepted: 10/05/2011] [Indexed: 12/11/2022] Open
Abstract
Rudolph Virchow first speculated on a relationship between inflammation and cancer more than 150 years ago. Subsequently, chronic inflammation and associated reactive free radical overload and some types of bacterial, viral, and parasite infections that cause inflammation were recognized as important risk factors for cancer development and account for one in four of all human cancers worldwide. Even viruses that do not directly cause inflammation can cause cancer when they act in conjunction with proinflammatory cofactors or when they initiate or promote cancer via the same signaling pathways utilized in inflammation. Whatever its origin, inflammation in the tumor microenvironment has many cancer-promoting effects and aids in the proliferation and survival of malignant cells and promotes angiogenesis and metastasis. Mediators of inflammation such as cytokines, free radicals, prostaglandins, and growth factors can induce DNA damage in tumor suppressor genes and post-translational modifications of proteins involved in essential cellular processes including apoptosis, DNA repair, and cell cycle checkpoints that can lead to initiation and progression of cancer.
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Affiliation(s)
- Wallace B Morrison
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN, USA.
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41
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Sanchez VC, Jachak A, Hurt RH, Kane AB. Biological interactions of graphene-family nanomaterials: an interdisciplinary review. Chem Res Toxicol 2011; 25:15-34. [PMID: 21954945 DOI: 10.1021/tx200339h] [Citation(s) in RCA: 740] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Graphene is a single-atom thick, two-dimensional sheet of hexagonally arranged carbon atoms isolated from its three-dimensional parent material, graphite. Related materials include few-layer-graphene (FLG), ultrathin graphite, graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanosheets (GNS). This review proposes a systematic nomenclature for this set of Graphene-Family Nanomaterials (GFNs) and discusses specific materials properties relevant for biomolecular and cellular interactions. We discuss several unique modes of interaction between GFNs and nucleic acids, lipid bilayers, and conjugated small molecule drugs and dyes. Some GFNs are produced as dry powders using thermal exfoliation, and in these cases, inhalation is a likely route of human exposure. Some GFNs have aerodynamic sizes that can lead to inhalation and substantial deposition in the human respiratory tract, which may impair lung defense and clearance leading to the formation of granulomas and lung fibrosis. The limited literature on in vitro toxicity suggests that GFNs can be either benign or toxic to cells, and it is hypothesized that the biological response will vary across the material family depending on layer number, lateral size, stiffness, hydrophobicity, surface functionalization, and dose. Generation of reactive oxygen species (ROS) in target cells is a potential mechanism for toxicity, although the extremely high hydrophobic surface area of some GFNs may also lead to significant interactions with membrane lipids leading to direct physical toxicity or adsorption of biological molecules leading to indirect toxicity. Limited in vivo studies demonstrate systemic biodistribution and biopersistence of GFNs following intravenous delivery. Similar to other smooth, continuous, biopersistent implants or foreign bodies, GFNs have the potential to induce foreign body tumors. Long-term adverse health impacts must be considered in the design of GFNs for drug delivery, tissue engineering, and fluorescence-based biomolecular sensing. Future research is needed to explore fundamental biological responses to GFNs including systematic assessment of the physical and chemical material properties related to toxicity. Complete materials characterization and mechanistic toxicity studies are essential for safer design and manufacturing of GFNs in order to optimize biological applications with minimal risks for environmental health and safety.
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Affiliation(s)
- Vanesa C Sanchez
- Department of Pathology and Laboratory Medicine, Brown University , Providence, Rhode Island 02912, United States
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Woodward KN. Origins of injection-site sarcomas in cats: the possible role of chronic inflammation-a review. ISRN VETERINARY SCIENCE 2011; 2011:210982. [PMID: 23738095 PMCID: PMC3658838 DOI: 10.5402/2011/210982] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Accepted: 02/13/2011] [Indexed: 12/26/2022]
Abstract
The etiology of feline injection-site sarcomas remains obscure. Sarcomas and other tumors are known to be associated with viral infections in humans and other animals, including cats. However, the available evidence suggests that this is not the case with feline injection-site sarcomas. These tumors have more in common with sarcomas noted in experimental studies with laboratory animals where foreign materials such as glass, plastics, and metal are the causal agent. Tumors arising with these agents are associated with chronic inflammation at the injection or implantation sites. Similar tumors have been observed, albeit infrequently, at microchip implantation sites, and these also are associated with chronic inflammation. It is suggested that injection-site sarcomas in cats may arise at the administration site as a result of chronic inflammation, possibly provoked by adjuvant materials, with subsequent DNA damage, cellular transformation, and clonal expansion. However, more fundamental research is required to elucidate the mechanisms involved.
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Affiliation(s)
- Kevin N. Woodward
- Technology Sciences (Europe) Limited, Concordia House, St James Business Park, Grimbald Crag Court, Knaresborough, North Yorkshire, HG5 8QB, UK
- Intervet/Schering-Plough Animal Health, Breakspear Road South, Harefield, Uxbridge, Middlesex, UB9 6LS, UK
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Development of a quantitative bioassay to assess preventive compounds against inflammation-based carcinogenesis. Nitric Oxide 2011; 25:183-94. [PMID: 21345376 DOI: 10.1016/j.niox.2011.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Revised: 02/15/2011] [Accepted: 02/15/2011] [Indexed: 02/06/2023]
Abstract
Reducing cancer incidence and mortality by use of cancer-chemopreventive agents is an important goal. We have established an in vitro bioassay that is able to screen large numbers of candidate chemicals that are positive for prevention of inflammation-related carcinogenesis. To accomplish this we have added candidate chemicals or vehicles and freshly isolated, fluorescent dye-labeled inflammatory cells that were overlaid on TNF-alpha-stimulated mouse endothelial cells in a 96-well plate. Inhibition of inflammatory cell attachment to the endothelial cells by the chemicals was quantified by the intensity of fluorescence from the adherent inflammatory cells after removing unattached cells. Using this assay, we selected two chemicals, auraptene and turmerones, for further study. As an in vivo test, diets containing these test chemicals were administered to mice with a piece of foreign body, gelatin sponge, that had been implanted to cause inflammation, and we found that the number of inflammatory cells that infiltrated into the subcutaneously implanted gelatin sponge was reduced compared to that found in the mice fed with a control diet. Moreover, diets containing either of the two chemicals prevented inflammation-based carcinogenesis in a mouse model. We found that the compounds reduced not only the number of infiltrating cells but also the expression of inducible nitric oxide synthase (iNOS) or formation of 8-hydroxy-2'-deoxyguanine (8-OHdG) in the infiltrated cells. Moreover, both compounds but not controls sustained the reducing activity in the inflammatory lesion, and this finding was confirmed by using non-invasive in vivo electron spin resonance. The newly established in vitro screening assay will be useful for finding biologically effective chemopreventive agents against inflammation-related carcinogenesis.
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Kang NS, Qin DP. Cancer-like foreign-body in rectum wall: A case report. World J Gastrointest Surg 2010; 2:32-4. [PMID: 21160833 PMCID: PMC2999196 DOI: 10.4240/wjgs.v2.i1.32] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 08/12/2009] [Accepted: 08/19/2009] [Indexed: 02/06/2023] Open
Abstract
Foreign bodies in the rectum wall, whose most common causes are aberrant sexual activity and intake of small fishbone fragments by mistake, usually have a clear history, presenting an acute upset. However, chronic presence of a foreign-body can result in inflammatory reaction and stromal proliferation, and can even accelerate the occurrence and deterioration of tumors through different mechanisms, such as reactive oxygen species. Foreign bodies in the rectum wall may induce complications and lead to misdiagnosis. Colonoscopy and biopsy pathology are one of the most trusted techniques for diagnosis.
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Affiliation(s)
- Nian-Song Kang
- Nian-Song Kang, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
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Onuma K, Sato Y, Ogawara S, Shirasawa N, Kobayashi M, Yoshitake J, Yoshimura T, Iigo M, Fujii J, Okada F. Nano-scaled particles of titanium dioxide convert benign mouse fibrosarcoma cells into aggressive tumor cells. THE AMERICAN JOURNAL OF PATHOLOGY 2009; 175:2171-83. [PMID: 19815711 DOI: 10.2353/ajpath.2009.080900] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Nanoparticles are prevalent in both commercial and medicinal products; however, the contribution of nanomaterials to carcinogenesis remains unclear. We therefore examined the effects of nano-sized titanium dioxide (TiO(2)) on poorly tumorigenic and nonmetastatic QR-32 fibrosarcoma cells. We found that mice that were cotransplanted subcutaneously with QR-32 cells and nano-sized TiO(2), either uncoated (TiO(2)-1, hydrophilic) or coated with stearic acid (TiO(2)-2, hydrophobic), did not form tumors. However, QR-32 cells became tumorigenic after injection into sites previously implanted with TiO(2)-1, but not TiO(2)-2, and these developing tumors acquired metastatic phenotypes. No differences were observed either histologically or in inflammatory cytokine mRNA expression between TiO(2)-1 and TiO(2)-2 treatments. However, TiO(2)-2, but not TiO(2)-1, generated high levels of reactive oxygen species (ROS) in cell-free conditions. Although both TiO(2)-1 and TiO(2)-2 resulted in intracellular ROS formation, TiO(2)-2 elicited a stronger response, resulting in cytotoxicity to the QR-32 cells. Moreover, TiO(2)-2, but not TiO(2)-1, led to the development of nuclear interstices and multinucleate cells. Cells that survived the TiO(2) toxicity acquired a tumorigenic phenotype. TiO(2)-induced ROS formation and its related cell injury were inhibited by the addition of antioxidant N-acetyl-l-cysteine. These results indicate that nano-sized TiO(2) has the potential to convert benign tumor cells into malignant ones through the generation of ROS in the target cells.
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Affiliation(s)
- Kunishige Onuma
- Department of Biochemistry and Molecular Biology, Yamagata University, Japan
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de Wailly P, Desurmont T, Arnault V, Soro K, Huten N, Kraimps JL. [Postoperative textiloma and cancer]. JOURNAL DE CHIRURGIE 2009; 146:327-328. [PMID: 19640532 DOI: 10.1016/j.jchir.2009.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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47
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Ohishi T, Nukuzuma C, Seki A, Watanabe M, Tomiyama-Miyaji C, Kainuma E, Inoue M, Kuwano Y, Abo T. Alkalization of blood pH is responsible for survival of cancer patients by mild hyperthermia. Biomed Res 2009; 30:95-100. [DOI: 10.2220/biomedres.30.95] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Awasthi S, Singhal SS, Awasthi YC, Martin B, Woo JH, Cunningham CC, Frankel AE. RLIP76 and Cancer. Clin Cancer Res 2008; 14:4372-7. [PMID: 18628450 DOI: 10.1158/1078-0432.ccr-08-0145] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
RLIP76 is a multifunctional membrane protein that transports glutathione conjugates of electrophilic compounds and other xenobiotics including chemotherapy agents out of cells. The protein is overexpressed in lung carcinomas, ovarian carcinomas, and melanomas. The protein also binds Ral and participates in mitotic spindle function, clathrin-dependent endocytosis, and triggers GTPase-activating protein activity. It is found throughout the cell, in membrane, cytosol, and the nucleus, and is known to shift between these compartments in response to stress. Loss of RLIP76 by antibody or antisense therapy is associated with increased sensitivity to radiation and chemotherapy. Conversely, liposomally delivered RLIP may treat poisoning and wounds.
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Affiliation(s)
- Sanjay Awasthi
- Department of Molecular Biology and Immunology, University of North Texas Health Science Center, Fort Worth, Texas, USA
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