1
|
Bhattacharya M, Sarkar A, Wen ZH, Wu YJ, Chakraborty C. Rational Design of a Multi-epitope Vaccine Using Neoantigen Against Colorectal Cancer Through Structural Immunoinformatics and ML-Enabled Simulation Approach. Mol Biotechnol 2024:10.1007/s12033-024-01242-2. [PMID: 39190054 DOI: 10.1007/s12033-024-01242-2] [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: 04/09/2024] [Accepted: 07/08/2024] [Indexed: 08/28/2024]
Abstract
Colorectal cancer poses a substantial global health burden. Regarding WHO, the global burden of colorectal cancer will be about 3.2 million new cases by the year 2040. Simultaneously, it indicated that this cancer will cause 6 million deaths per year. Despite advancements in chemotherapy and monoclonal antibody therapy, the disease remains a significant challenge due to the resistance of cancer stem cells. This study endeavors to design a multi-epitopic peptide (9-mer epitopes) neoantigen-based vaccine targeting the TLR4/MD2 complex as a potential vaccine candidate. These tumor-specific neoantigens (TSA) are considered novel antigens that can be used for vaccine development against cancer. To develop the neoantigen vaccine candidate, we used the SPENCER database, and 140 lncRNA-derived epitopes were retrieved. From 140 epitopes, we selected seven neoantigens with high antigenic properties for the vaccine construct. A novel vaccine containing epitopes, linkers (EAAAK and CPCPG), and adjuvants (ribosomal [50S] protein L7L12) was formulated utilizing immunoinformatics tools. The vaccine's biophysical properties were evaluated, revealing its antigenicity (0.6469), stability (instability index: 37.05), and potential for immune system interaction. In-depth structural analyses, molecular docking studies, and ML-enabled immune simulation profiling underscored the vaccine's structural integrity, binding affinity with TLR4, and ability to elicit robust immune responses against colorectal cancer antigens. These findings suggest that the multi-epitopic vaccine holds promise as a next-generation approach to combat colorectal cancer. Our in silico studies exhibit potentiality of the vaccine candidate; however, further in vivo and in vitro investigations are crucial to validate immunogenicity, safety, and efficacy before clinical implementation. Our study developed a first-time lncRNA-derived neoantigen-based cancer vaccine.
Collapse
Affiliation(s)
- Manojit Bhattacharya
- Department of Zoology, Fakir Mohan University, Vyasa Vihar, Balasore, Odisha, 756020, India
| | - Anindita Sarkar
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal, 700126, India
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Yueh-Jung Wu
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung, 80284, Taiwan.
| | - Chiranjib Chakraborty
- Department of Biotechnology, School of Life Science and Biotechnology, Adamas University, Kolkata, West Bengal, 700126, India.
| |
Collapse
|
2
|
Jing Y, Li C, Du T, Jiang T, Sun H, Yang J, Shi L, Gao M, Grzegorzek M, Li X. A comprehensive survey of intestine histopathological image analysis using machine vision approaches. Comput Biol Med 2023; 165:107388. [PMID: 37696178 DOI: 10.1016/j.compbiomed.2023.107388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/06/2023] [Accepted: 08/25/2023] [Indexed: 09/13/2023]
Abstract
Colorectal Cancer (CRC) is currently one of the most common and deadly cancers. CRC is the third most common malignancy and the fourth leading cause of cancer death worldwide. It ranks as the second most frequent cause of cancer-related deaths in the United States and other developed countries. Histopathological images contain sufficient phenotypic information, they play an indispensable role in the diagnosis and treatment of CRC. In order to improve the objectivity and diagnostic efficiency for image analysis of intestinal histopathology, Computer-aided Diagnosis (CAD) methods based on machine learning (ML) are widely applied in image analysis of intestinal histopathology. In this investigation, we conduct a comprehensive study on recent ML-based methods for image analysis of intestinal histopathology. First, we discuss commonly used datasets from basic research studies with knowledge of intestinal histopathology relevant to medicine. Second, we introduce traditional ML methods commonly used in intestinal histopathology, as well as deep learning (DL) methods. Then, we provide a comprehensive review of the recent developments in ML methods for segmentation, classification, detection, and recognition, among others, for histopathological images of the intestine. Finally, the existing methods have been studied, and the application prospects of these methods in this field are given.
Collapse
Affiliation(s)
- Yujie Jing
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, China; Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang, Liaoning, China
| | - Chen Li
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, China; Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang, Liaoning, China.
| | - Tianming Du
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, China; Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang, Liaoning, China
| | - Tao Jiang
- School of Intelligent Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China; International Joint Institute of Robotics and Intelligent Systems, Chengdu University of Information Technology, Chengdu, China
| | - Hongzan Sun
- Shengjing Hospital of China Medical University, Shenyang, China
| | - Jinzhu Yang
- Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang, Liaoning, China
| | - Liyu Shi
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, China; Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang, Liaoning, China
| | - Minghe Gao
- Microscopic Image and Medical Image Analysis Group, College of Medicine and Biological Information Engineering, Northeastern University, China; Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang, Liaoning, China
| | - Marcin Grzegorzek
- Institute for Medical Informatics, University of Luebeck, Luebeck, Germany; Department of Knowledge Engineering, University of Economics in Katowice, Katowice, Poland
| | - Xiaoyan Li
- Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China.
| |
Collapse
|
3
|
Lin Z, Li Q, Zhao Y, Lin Z, Cheng N, Zhang D, Liu G, Lin J, Zhang H, Lin D. Combination of Auranofin and ICG-001 Suppress the Proliferation and Metastasis of Colon Cancer. Front Oncol 2021; 11:738085. [PMID: 34900688 PMCID: PMC8651623 DOI: 10.3389/fonc.2021.738085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/01/2021] [Indexed: 01/02/2023] Open
Abstract
Colon cancer is one of the deadliest tumors in the world, and with high metastasis rate and mortality, effective drugs for its treatment are still in need. Auranofin (AF) is a gold complex that has been attested by FDA for treating human rheumatism, and researchers have found that AF acts as a great antitumor drug in recent years. ICG-001 is a small molecule inhibitor of Wnt/β-catenin pathway. In the present study, we aimed to explore the synergistic antitumor effects and the underlying mechanisms of AF and ICG-001 combination therapy on human colon cancer. The results showed that AF and ICG-001 synergistically depressed the growth and invasion of human colon cancer cells by inhibiting the phosphorylation of Signal Transducer and Activator of Transcription 3 (STAT3) and its downstream mediator B-cell lymphoma-2-like 1 (Bcl-xL) and inducing caspase-3-dependent apoptosis. Moreover, AF combined with ICG-001 synergistically inhibited the growth of colon cancer in subcutaneous xenograft mice models and restrained metastasis in lung metastasis mice models. In conclusion, our results demonstrated that combination of AF and ICG-001 suppressed the proliferation and metastasis of colon cancer by inhibiting STAT3 phosphorylation. Therefore, this combination therapy may possess potential therapeutic properties for human colon cancer.
Collapse
Affiliation(s)
- Zhaoyan Lin
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Qingqing Li
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ying Zhao
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Zixiang Lin
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Nan Cheng
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Di Zhang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Gang Liu
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jiahao Lin
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hong Zhang
- College of Animal Science and Technology, Hainan University, Haikou, China
| | - Degui Lin
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| |
Collapse
|
4
|
Zhang Y, Jiang Q, Liu X, Peng L, Tang X, Li L, Ling X, Yang X, He C, Tao X, Hou D. A Study of Hydrophobically Modified Pullulan Nanoparticles with Different Hydrophobic Densities on the Effect of Anti-Colon Cancer Cell Efficiency. J Biomed Nanotechnol 2021; 17:1972-1983. [PMID: 34706797 DOI: 10.1166/jbn.2021.3173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To discuss the effect of hydrophobic groups of a polymer on the structural properties and function of polymer nanoparticles (NPs), we grafted chenodeoxycholic acid (CDCA) with pullulan (PU) to form hydrophobically modified PU (PUC). Three PUC polymers, namely, PUC-1, PUC-2, and PUC-3, with different degrees of substitution were designed by changing the feed ratio of CDCA and PU. 1H-NMR spectra showed that the PUC polymer was successfully synthesized, and the degrees of hydrophobic substitution for PUC-1, PUC-2, and PUC-3 were calculated to be 10.66%, 13.92%, and 16.94%, respectively. The PUC NPs were prepared by the dialysis method and were shown to be uniformly spherical by transmission electron microscopy (TEM). The average sizes were about (220±10) nm, (203±7) nm, and (163±6) nm under dynamic light scattering (DLS) for PUC-1 NPs, PUC-2 NPs, and PUC-3 NPs, respectively. Drug release experiments showed that the three PUC/DOX NPs exhibited good sustained release. At 48 h, the IC50 of doxorubicin in inhibiting colon cancer HCT116 cells was 0.0904 μg/mL. A cell study showed that PUC-3/DOX NPs had the highest uptake efficiency by HCT116 cells with the most cytotoxicity and inhibited the migration of HCT116 cells with the highest efficiency. The structural properties and function of polymer NPs were closely related to the hydrophobic groups in the polymer, and NPs with higher hydrophobicity showed a smaller size, higher drug capacity, and greater cell efficiency.
Collapse
Affiliation(s)
- Yi Zhang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Qing Jiang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xinyi Liu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Liping Peng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xinyi Tang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Ling Li
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xiao Ling
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xiaoping Yang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Chunlian He
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Xiaojun Tao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| | - Defu Hou
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine; Key Laboratory of Protein Chemistry and Developmental Biology of Fish of Ministry of Education, Hunan Normal University, Changsha, 410013, PR China
| |
Collapse
|
5
|
Sieminska I, Baran J. Myeloid-Derived Suppressor Cells in Colorectal Cancer. Front Immunol 2020; 11:1526. [PMID: 32849517 PMCID: PMC7426395 DOI: 10.3389/fimmu.2020.01526] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/10/2020] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) remains one of the most common malignancies diagnosed worldwide. The pathogenesis of CRC is complex and involves, among others, accumulation of genetic predispositions and epigenetic factors, dietary habits, alterations in gut microbiota, and lack of physical activity. A growing body of evidence suggests that immune cells play different roles in CRC, comprising both pro- and anti-tumorigenic functions. Immunosuppression observed during cancer development and progression is a result of the orchestration of many cell types, including myeloid-derived suppressor cells (MDSCs). MDSCs, along with other cells, stimulate tumor growth, angiogenesis, and formation of metastases. This article focuses on MDSCs in relation to their role in the initiation and progression of CRC. Possible forms of immunotherapies targeting MDSCs in CRC are also discussed.
Collapse
Affiliation(s)
| | - Jarek Baran
- Department of Clinical Immunology, Jagiellonian University Medical College, Krakow, Poland
| |
Collapse
|
6
|
Ferrari LF, Bogen O, Green P, Levine JD. Contribution of Piezo2 to endothelium-dependent pain. Mol Pain 2015; 11:65. [PMID: 26497944 PMCID: PMC4619430 DOI: 10.1186/s12990-015-0068-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 10/09/2015] [Indexed: 12/11/2022] Open
Abstract
Background We evaluated the role of a mechanically-gated ion channel, Piezo2, in mechanical stimulation-induced enhancement of hyperalgesia produced by the pronociceptive vasoactive mediator endothelin-1, an innocuous mechanical stimulus-induced enhancement of hyperalgesia that is vascular endothelial cell dependent. We also evaluated its role in a preclinical model of a vascular endothelial cell dependent painful peripheral neuropathy. Results The local administration of oligodeoxynucleotides antisense to Piezo2 mRNA, at the site of nociceptive testing in the rat’s hind paw, but not intrathecally at the central terminal of the nociceptor, prevented innocuous stimulus-induced enhancement of hyperalgesia produced by endothelin-1 (100 ng). The mechanical hyperalgesia induced by oxaliplatin (2 mg/kg. i.v.), which was inhibited by impairing endothelial cell function, was similarly attenuated by local injection of the Piezo2 antisense. Polymerase chain reaction analysis demonstrated for the first time the presence of Piezo2 mRNA in endothelial cells. Conclusions These results support the hypothesis that Piezo2 is a mechano-transducer in the endothelial cell where it contributes to stimulus-dependent hyperalgesia, and a model of chemotherapy-induced painful peripheral neuropathy.
Collapse
Affiliation(s)
- Luiz F Ferrari
- Division of Neuroscience, Department of Medicine, University of California, San Francisco, 521 Parnassus Avenue, San Francisco, CA, 94143-0440, USA.
| | - Oliver Bogen
- Division of Neuroscience, Department of Medicine, University of California, San Francisco, 521 Parnassus Avenue, San Francisco, CA, 94143-0440, USA.
| | - Paul Green
- Division of Neuroscience, Department of Medicine, University of California, San Francisco, 521 Parnassus Avenue, San Francisco, CA, 94143-0440, USA.
| | - Jon D Levine
- Division of Neuroscience, Department of Medicine, University of California, San Francisco, 521 Parnassus Avenue, San Francisco, CA, 94143-0440, USA.
| |
Collapse
|
7
|
Cho JH, Kim S, Namgung M, Choi YS, Kim HK, Zo JI, Shim YM, Kim J. The prognostic importance of the number of metastases in pulmonary metastasectomy of colorectal cancer. World J Surg Oncol 2015. [PMID: 26205014 PMCID: PMC4522996 DOI: 10.1186/s12957-015-0621-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background The presence of multiple metastatic pulmonary nodules is a predictor of poor survival after pulmonary metastasectomy. However, there is a paucity of data addressing the exact number of pulmonary metastases over which prognosis becomes grave. The aim of our study is to investigate the prognosis of pulmonary metastasectomy from colorectal cancer (CRC) depending on the number of pulmonary metastases. Methods Patients who had undergone pulmonary metastasectomy for CRC between November 1994 and December 2013 were included. Survival and recurrence patterns were analyzed with regard to the number of pulmonary metastases. Patients were divided into three groups depending on the number of pulmonary metastases that were detected by the final pathologic report: group I—single metastasis; group II—2–3 metastases; and group III—4+ metastases. Results A total of 615 patients who had undergone pulmonary metastasectomy from colorectal cancer were included. The median follow-up period was 31 months (range 2–211 months). The median disease-free interval (DFI) from the time of the primary operation for colorectal cancer was 20 months (range 0–209 months). There were 414 patients in group I (single metastasis), 159 in group II (2–3 metastases), and 42 in group III (4+ metastases). The overall 5-year survival rate was 64.2 %. The 5-year survival rates in groups I, II, and III were 70.0, 56.2, and 33.7 %, respectively (group I vs. II, p < 0.001; group II vs. III, p = 0.012). The 5-year recurrence-free rates were 39.5, 30.6, and 8.5 % in groups I, II, and III, respectively (group I vs. II, p < 0.001; group II vs. III, p = 0.056). Multivariable analysis revealed that age, multiple pulmonary nodules, thoracic lymph node metastasis, and adjuvant chemotherapy are independent predictors of survival. Conclusions The overall survival and recurrence after pulmonary metastasectomy for CRC is dependent on the number of metastases. Surgical treatment can be offered to patients with three or fewer pulmonary metastases. However, more meticulous patient selection is required to decide whether a surgical approach is feasible in patients with four or more pulmonary metastases.
Collapse
Affiliation(s)
- Jong Ho Cho
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea
| | - Seok Kim
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea
| | - Mi Namgung
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea
| | - Yong Soo Choi
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea
| | - Hong Kwan Kim
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea
| | - Jae Ill Zo
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea
| | - Young Mog Shim
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea
| | - Jhingook Kim
- Department of Thoracic and Cardiovascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Gangnam-gu, Seoul, 135-710, South Korea.
| |
Collapse
|
8
|
Yang S, Liu G, Zheng S, Dong K, Ma Y, Xiao X. Signet-ring cell carcinoma of the colon: A case report of a 9-year-old boy. Oncol Lett 2015; 10:1632-1634. [PMID: 26622723 DOI: 10.3892/ol.2015.3403] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 05/07/2015] [Indexed: 12/14/2022] Open
Abstract
Colorectal carcinomas are common in adults; however, they rarely occur in children. The present study reported the case of a colorectal carcinoma diagnosed as signet-ring cell carcinoma in a 9-year-old boy. The patient presented with acute intestinal obstruction symptoms, which persisted following 3 days of conservative treatment. The diagnosis was determined by emergency laparotomy and a mass was identified in the transverse colon proximal to the splenic flexure. Histological examination of the mass revealed signet-ring cell carcinoma. In addition, the present study aimed to discuss the diagnostic establishment and treatment of this rare disease in children. Due to the high mortality rate caused by delays in accurate diagnoses, signet-ring cell carcinoma in children promotes a specific diagnostic and surgical challenge.
Collapse
Affiliation(s)
- Shaobo Yang
- Department of Surgery, Children's Hospital of Fudan University, Minhang, Shanghai 201102, P.R. China
| | - Gongbao Liu
- Department of Surgery, Children's Hospital of Fudan University, Minhang, Shanghai 201102, P.R. China
| | - Shan Zheng
- Department of Surgery, Children's Hospital of Fudan University, Minhang, Shanghai 201102, P.R. China
| | - Kuiran Dong
- Department of Surgery, Children's Hospital of Fudan University, Minhang, Shanghai 201102, P.R. China
| | - Yangyang Ma
- Department of Pathology, Children's Hospital of Fudan University, Minhang, Shanghai 201102, P.R. China
| | - Xianmin Xiao
- Department of Surgery, Children's Hospital of Fudan University, Minhang, Shanghai 201102, P.R. China
| |
Collapse
|
9
|
Esmaelbeygi E, Khoei S, Khoee S, Eynali S. Role of iron oxide core of polymeric nanoparticles in the thermosensitivity of colon cancer cell line HT-29. Int J Hyperthermia 2015; 31:489-97. [PMID: 25960148 DOI: 10.3109/02656736.2015.1035766] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
PURPOSE In this study the effect of PLGA polymeric nanoparticles as a 5-fluorouracil (5-FU) carrier with and without iron oxide core and hyperthermia were investigated on the level of DNA damage in a spheroid culture model of HT-29 colon cancer cell lines by alkaline comet assay. MATERIALS AND METHODS First, HT-29 colon cancer cells were cultured in vitro as spheroids with a mean diameter of 100 µm. The spheroids were then treated with different concentrations of 5-FU or nanoparticles as 5-FU carriers with and without an iron oxide core for one volume-doubling time of the spheroids (71 h) and hyperthermia at 43 °C for 1 h. Finally, the effect of treatment on viability and level of DNA damage was examined using trypan blue dye exclusion assay and alkaline comet assay, respectively. RESULTS Results showed that hyperthermia in combination with 5-FU or nanoparticles as 5-FU carriers significantly induced the most DNA damage as compared with the control group. The extent of DNA damage following treatment with 5-FU-loaded nanoparticles combined with hyperthermia was significantly more than for 5-FU combined with hyperthermia. In comparison to the effect of 5-FU-loaded nanoparticles with the iron oxide core and 5-FU-loaded nanoparticle without the iron oxide core, the nanoparticles with the iron oxide core combined with hyperthermia induced more DNA damage than the nanoparticles without the iron oxide core. CONCLUSIONS According to this study, hyperthermia is a harmful agent and nanoparticles are effective delivery vehicles for drugs into colon cancer cells. The iron oxide filled nanoparticles increased the effect of the hyperthermia. All these factors have a significant role in the treatment of colorectal cancer cells.
Collapse
Affiliation(s)
- Elaheh Esmaelbeygi
- Medical Physics and Biomedical Engineering Department, School of Medicine, Tehran University of Medical Sciences (TUMS) , Tehran
| | | | | | | |
Collapse
|
10
|
Wang L, Yu K, Zhou BB, Su ZH, Gao S, Chu LL, Liu JR. The inhibitory effects of a new cobalt-based polyoxometalate on the growth of human cancer cells. Dalton Trans 2014; 43:6070-8. [PMID: 24463531 DOI: 10.1039/c3dt53030b] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Lu Wang
- Key Laboratory of Synthesis of Functional Materials and Green Catalysis Colleges of Heilongjiang Province, School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin, Heilongjiang 150025, the People's Republic of China.
| | | | | | | | | | | | | |
Collapse
|
11
|
Qian J, Liu H, Chen W, Wen K, Lu W, Huang C, Fu Z. Knockdown of Slug by RNAi inhibits the proliferation and invasion of HCT116 colorectal cancer cells. Mol Med Rep 2013; 8:1055-9. [PMID: 23900394 DOI: 10.3892/mmr.2013.1604] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 04/09/2013] [Indexed: 11/06/2022] Open
Abstract
Colorectal cancer is one of the most common alimentary malignancies. Slug has been shown to be an ideal target for cancer gene therapy by numerous studies due to its strong anti‑apoptotic effect. The elevated expression of Slug is a frequent genetic abnormality observed in colorectal cancer. In the present study, a Slug short hairpin RNA (shRNA) expression vector that was able to efficiently inhibit the expression of Slug in HCT116 cells was prepared. Following transfection, the mRNA expression levels were detected by RT‑PCR analysis. Western blotting detected a similar inhibition of the Slug protein levels in the cells transfected with the pGCsi‑Slug plasmid. Downregulation of Slug resulted in a significant inhibition of cancer cell growth in vitro. Cell invasion and apoptosis were decreased concomitantly with the reduction in Slug protein expression. These results suggested that RNA interference (RNAi) was able to downregulate the Slug protein level in HCT116 cells and significantly inhibit tumor growth in vitro. These findings suggest that RNAi has therapeutic potential for the treatment of colorectal cancer, as well as other types of cancer, by targeting the overexpression of oncogenes, including Slug.
Collapse
Affiliation(s)
- Jiang Qian
- Department of General Surgery, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, P.R. China
| | | | | | | | | | | | | |
Collapse
|
12
|
Sericin consumption suppresses development and progression of colon tumorigenesis in 1,2-dimethylhydrazine-treated rats. Biologia (Bratisl) 2012. [DOI: 10.2478/s11756-012-0093-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
13
|
Abstract
The burden of cancer is growing worldwide and with it a more desperate need for better tools to detect, diagnose and monitor the disease is required. It is well recognized that cancer cells are characterized by distinct metabolic perturbations. The metabolomics approach involves the comprehensive profiling of the full complement of low MW compounds in a biological system. By applying advanced analytical and statistical tools, the 'metabolome' is mined for biomarkers that are associated with the state of cancer. This review presents an introduction to the main analytical platforms used in metabolomics analyses, such as NMR spectroscopy and MS, as well as the statistical tools used to mine these datasets. The discussion focuses on 'state-of-the-art' investigations on the four cancer types that have received the most study by metabolomics, namely breast, prostate, colorectal and liver cancer.
Collapse
|
14
|
Gil J, Ramsey D, Stembalska A, Karpinski P, Pesz KA, Laczmanska I, Leszczynski P, Grzebieniak Z, Sasiadek MM. The C/A polymorphism in intron 11 of the XPC gene plays a crucial role in the modulation of an individual's susceptibility to sporadic colorectal cancer. Mol Biol Rep 2011. [PMID: 21559836 DOI: 10.1007/s11033-0110767-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Epidemiological data show that colorectal cancer (CRC) is the second most frequent malignancy worldwide. The involvement of "minor impact genes" such as XME and DNA-repair genes in the etiology of sporadic cancer has been postulated by other authors. We focused on analyzing polymorphisms in DNA-repair genes in CRC. We considered the following genes involved in DNA-repair pathways: base excision repair (OGG1 Ser326Cys, XRCC1 Trp194Arg and Arg399Gln); nucleotide excision repair [XPA (-4)G/A, XPC C/A (i11) and A33512C (Lys939Gln), XPD Asp312Asn and A18911C (Lys751Gln), XPF Arg415Gln, XPG Asp1104His, ERCC1 C118T]; homologous recombination repair [NBS1 Glu185Gln, Rad51 135G/C, XRCC3 C18067 (Thr241Met)]. The study group consisted of 133 patients diagnosed with sporadic CRC, while the control group was composed of 100 age-matched non-cancer volunteers. Genotyping was performed by PCR and PCR-RFLP. Fisher's exact test with a Bonferroni correction for multiple testing was used. We found that: (i) XPC C/A (i11) heterozygous variant is associated with increased risk of CRC [OR is 2.07 (95% CI 1.1391, 3.7782) P=0.038], (ii) XPD A18911C (Lys751Gln) is associated with decreased risk of CRC [OR=0.4497, (95% CI 0.2215, 0.9131) P=0.031] for an individual with at least one A allele at this locus. (1) The XPC C/A (i11) genotype is associated with an increased risk of sporadic colorectal cancer. (2) The NER pathway has been highlighted in our study, as a most important in modulation of individual susceptibility to sCRC.
Collapse
Affiliation(s)
- Justyna Gil
- Department of Genetics, Medical University of Wroclaw, Marcinkowskiego 1, 50-368, Wroclaw, Poland.
| | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Gil J, Ramsey D, Stembalska A, Karpinski P, Pesz KA, Laczmanska I, Leszczynski P, Grzebieniak Z, Sasiadek MM. The C/A polymorphism in intron 11 of the XPC gene plays a crucial role in the modulation of an individual's susceptibility to sporadic colorectal cancer. Mol Biol Rep 2011; 39:527-34. [PMID: 21559836 DOI: 10.1007/s11033-011-0767-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 04/27/2011] [Indexed: 12/19/2022]
Abstract
Epidemiological data show that colorectal cancer (CRC) is the second most frequent malignancy worldwide. The involvement of "minor impact genes" such as XME and DNA-repair genes in the etiology of sporadic cancer has been postulated by other authors. We focused on analyzing polymorphisms in DNA-repair genes in CRC. We considered the following genes involved in DNA-repair pathways: base excision repair (OGG1 Ser326Cys, XRCC1 Trp194Arg and Arg399Gln); nucleotide excision repair [XPA (-4)G/A, XPC C/A (i11) and A33512C (Lys939Gln), XPD Asp312Asn and A18911C (Lys751Gln), XPF Arg415Gln, XPG Asp1104His, ERCC1 C118T]; homologous recombination repair [NBS1 Glu185Gln, Rad51 135G/C, XRCC3 C18067 (Thr241Met)]. The study group consisted of 133 patients diagnosed with sporadic CRC, while the control group was composed of 100 age-matched non-cancer volunteers. Genotyping was performed by PCR and PCR-RFLP. Fisher's exact test with a Bonferroni correction for multiple testing was used. We found that: (i) XPC C/A (i11) heterozygous variant is associated with increased risk of CRC [OR is 2.07 (95% CI 1.1391, 3.7782) P=0.038], (ii) XPD A18911C (Lys751Gln) is associated with decreased risk of CRC [OR=0.4497, (95% CI 0.2215, 0.9131) P=0.031] for an individual with at least one A allele at this locus. (1) The XPC C/A (i11) genotype is associated with an increased risk of sporadic colorectal cancer. (2) The NER pathway has been highlighted in our study, as a most important in modulation of individual susceptibility to sCRC.
Collapse
Affiliation(s)
- Justyna Gil
- Department of Genetics, Medical University of Wroclaw, Marcinkowskiego 1, 50-368, Wroclaw, Poland.
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Qiu Y, Cai G, Su M, Chen T, Zheng X, Xu Y, Ni Y, Zhao A, Xu LX, Cai S, Jia W. Serum metabolite profiling of human colorectal cancer using GC-TOFMS and UPLC-QTOFMS. J Proteome Res 2010; 8:4844-50. [PMID: 19678709 DOI: 10.1021/pr9004162] [Citation(s) in RCA: 307] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Colorectal carcinogenesis involves the overexpression of many immediate-early response genes associated with growth and inflammation, which significantly alters downstream protein synthesis and small-molecule metabolite production. We have performed a serum metabolic analysis to test the hypothesis that the distinct metabolite profiles of malignant tumors are reflected in biofluids. In this study, we have analyzed the serum metabolites from 64 colorectal cancer (CRC) patients and 65 healthy controls using gas chromatography time-of-flight mass spectrometry (GC-TOFMS) and Acquity ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry (Acquity UPLC-QTOFMS). Orthogonal partial least-squares discriminate analysis (OPLS-DA) models generated from GC-TOFMS and UPLC-QTOFMS metabolic profile data showed robust discrimination from CRC patients and healthy controls. A total of 33 differential metabolites were identified using these two analytical platforms, five of which were detected in both instruments. These metabolites potentially reveal perturbation of glycolysis, arginine and proline metabolism, fatty acid metabolism and oleamide metabolism, associated with CRC morbidity. These results suggest that serum metabolic profiling has great potential in detecting CRC and helping to understand its underlying mechanisms.
Collapse
Affiliation(s)
- Yunping Qiu
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Yavari K, Taghikhani M, Ghannadi Maragheh M, Mesbah-Namin SA, Babaei MH. Downregulation of IGF-IR expression by RNAi inhibits proliferation and enhances chemosensitization of human colon cancer cells. Int J Colorectal Dis 2010; 25:9-16. [PMID: 19669768 DOI: 10.1007/s00384-009-0783-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/14/2009] [Indexed: 02/04/2023]
Abstract
PURPOSE Colon cancer is the second leading cause of cancer death worldwide. Elevated expression of insulin-like growth factor-I receptor (IGF-IR) is a frequent genetic abnormality seen in this malignancy. For a better understanding of its role in maintaining the malignant phenotype, we used RNA interference (RNAi) directed against IGF-IR in our study. The aim of this study was to examine the anti-proliferation and chemosensitization effects elicited by a decrease in the transcription and protein levels of IGF-IR by RNAi in SW480 colon cancer cells. METHODS A plasmid-based polymerase III promoter system was used to deliver and express short interfering RNA (siRNA) targeting IGF-IR to reduce its expression in SW480 cells. Western blot analysis was used to measure the protein level of IGF-IR. We assessed the effects of IGF-IR silencing on cancer cell growth by a cell growth curve. The effect of the 5-fluorouracil (5-FU)-induced cell death by knockdown of IGF-IR was also investigated by methyl thiazolyl tetrazolium assay. RESULTS Transfection of siRNA targeting IGF-IR was shown to reduce IGF-IR messenger RNA levels by 95%. Western blotting detected a similar inhibition of IGF-IR protein levels in those cells. The cells transfected with PKD-short hairpin RNA-IGF-IR-V2 significantly decreased cell growth and rendered cells more sensitive to chemotherapy. The highest proliferation inhibitory and chemosensitization ratios were 53 +/- 2% and 1.78, respectively. CONCLUSION This study indicates that downregulation of IGF-IR results in significant inhibition of tumor growth in vitro. It also provides a promising strategy to chemotherapy efficacy in human tumors and forming a basis for future in vivo trials.
Collapse
Affiliation(s)
- Kamal Yavari
- Department of Clinical Biochemistry, Tarbiat Modares University, Tehran, Iran
| | | | | | | | | |
Collapse
|
18
|
Yavari K, Taghikhani M, Maragheh MG, Mesbah-Namin SA, Babaei MH, Arfaee AJ, Madani H, Mirzaei HR. SiRNA-mediated IGF-1R inhibition sensitizes human colon cancer SW480 cells to radiation. Acta Oncol 2009; 49:70-5. [PMID: 20001499 DOI: 10.3109/02841860903334429] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE Insulin like growth factor receptor 1 (IGF-1R) is well-documented to play a key role in radiation response and tumor radiosensitivity, thus offering an attractive clinic drug target to enhance tumor sensitivity to anti-cancer radiotherapy. MATERIAL AND METHODS Human colon carcinoma SW480 cells were transfected with the specific small interference RNA (siRNA) expression vector (pkD-shRNA-IGF-1R-V2) designed to target IGF-1R mRNA. The expression of IGF-1R mRNA and its protein among the transfected and untransfected cells were detected by semi-quantitative RT-PCR and ELISA assay. The changes in cell radiosensitivity were examined by MTT assay. RESULTS Transfection of mammalian expression vector pkD containing IGF-1R siRNA was shown to reduce IGF-1R mRNA levels by up to 95%. ELISA assay detected a similar inhibition of IGF-1R protein levels in cells transfected with IGF-1R siRNA. SW480 cells transfected with the expression vector for siRNA significantly rendered cells more sensitive to radiation and the highest radiation enhancement ratio was 2.02 +/- 0.08. CONCLUSION These data provide the first evidence that specific siRNA fragment (pkD-shRNA-IGF-1R-V2) targeting human IGF-1R mRNA is able to enhance colon cancer radiosensitivity. Also results indicated that, combining IGF-1R siRNA and radiation significantly enhances antitumor efficacy compared with either modality alone.
Collapse
Affiliation(s)
- Kamal Yavari
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Colorectal cancer mortality trends in Córdoba, Argentina. Cancer Epidemiol 2009; 33:406-12. [DOI: 10.1016/j.canep.2009.09.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 08/31/2009] [Accepted: 09/30/2009] [Indexed: 02/06/2023]
|
20
|
Yavari K, Taghikhani M, Maragheh MG, Mesbah-Namin SA, Babaei MH. Knockdown of IGF-IR by RNAi inhibits SW480 colon cancer cells growth in vitro. Arch Med Res 2009; 40:235-40. [PMID: 19608011 DOI: 10.1016/j.arcmed.2009.03.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2008] [Accepted: 02/03/2009] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Colon cancer is the second leading cause of death due to cancer worldwide. Elevated expression of IGF-IR is a frequent genetic abnormality seen in this malignancy. The aim of the study was to examine the anti-growth effects elicited by a decrease in the protein level of IGF-IR by RNA interference (RNAi) in SW480 cells. METHODS A plasmid-based polymerase III promoter system was used to deliver and express short interfering RNA (siRNA) targeting IGF-IR to reduce its expression in SW480 cells. The expression of IGF-1R protein was detected by Western blot. We assessed the effects of IGF-IR silencing on cancer cell growth by a growth curve. RESULTS We prepared a type of IGF-IR short hairpin RNA (shRNA) expression vector that could efficiently inhibit the expression of IGF-IR in SW480 cells. At 48 h after transfection, the expression inhibition rate was 92 +/- 2% at mRNA level detected by RT-PCR analysis. Western blotting detected a similar inhibition of IGF-IR protein levels in cells transfected with pkD-shRNA-IGF-IR-V2. Downregulation of IGF-IR resulted in significant inhibition of cancer cell growth in vitro. The cell growth inhibition rates at 24, 48, and 72 h after pkD-shRNA-IGF-IR-V2 transfection were 32.06, 47.61, and 35.36%, respectively. CONCLUSIONS Our data show that decreasing the IGF-IR protein level in SW480 cells by RNAi could significantly inhibit tumor growth in vitro, implying the therapeutic potential of RNAi on the treatment of colon cancer by targeting overexpression oncogenes such as IGF-IR. IGF-IR may be a potential therapeutic target for human colon cancer.
Collapse
Affiliation(s)
- Kamal Yavari
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | | | | | | |
Collapse
|
21
|
Xu WL, Liu JR, Liu HK, Qi GY, Sun XR, Sun WG, Chen BQ. Inhibition of proliferation and induction of apoptosis by gamma-tocotrienol in human colon carcinoma HT-29 cells. Nutrition 2009; 25:555-66. [PMID: 19121919 DOI: 10.1016/j.nut.2008.10.019] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Revised: 10/09/2008] [Accepted: 10/17/2008] [Indexed: 01/05/2023]
Abstract
OBJECTIVE gamma-Tocotrienol is a major component of the tocotrienol-rich fraction of palm oil, but there is limited evidence that it has antitumor activity. In particular, the effects of gamma-tocotrienol on human colon carcinoma cells have not been reported. To investigate the chemopreventive effects of gamma-tocotrienol on colon cancer, we examined its capacity to inhibit proliferation and induce apoptosis in HT-29 cells and explored the mechanism underlying these effects. METHODS We cultured HT-29 cells in the presence of gamma-tocotrienol. The effect of gamma-tocotrienol on cell proliferation was investigated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, mitotic index, and colony formation. The cell-cycle distribution was investigated by flow cytometry. We measured apoptosis by nuclear staining, transmission electron microscopy, and DNA fragmentation. Apoptosis-related proteins and the nuclear factor-kappaB p65 protein were determined by western blotting and immunofluorescence. RESULTS gamma-Tocotrienol inhibited cell growth and arrested HT-29 cells in G(0)/G(1) phase. The 50% inhibitory concentration was 31.7 micromol/L (48 h). gamma-Tocotrienol-induced apoptosis in HT-29 cells was accompanied by downregulation of Bcl-2, upregulation of Bax, and activation of caspase-3. Furthermore, we found that gamma-tocotrienol reduced the expression level of total nuclear factor-kappaB p65 protein and inhibited its nuclear translocation. CONCLUSION The results indicated that gamma-tocotrienol inhibits cell proliferation and induces apoptosis in HT-29 cells in a time- and dose-dependent manner, and that this process is accompanied by cell-cycle arrest at G(0)/G(1), an increased Bax/Bcl-2 ratio, and activation of caspase-3. Our data also indicated that nuclear factor-kappaB p65 protein may be involved in these effects.
Collapse
Affiliation(s)
- Wei-Li Xu
- Department of Nutrition and Food Hygiene, Public Health School, Harbin Medical University, Harbin, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
22
|
Joseph EK, Chen X, Bogen O, Levine JD. Oxaliplatin Acts on IB4-Positive Nociceptors to Induce an Oxidative Stress-Dependent Acute Painful Peripheral Neuropathy. THE JOURNAL OF PAIN 2008; 9:463-72. [DOI: 10.1016/j.jpain.2008.01.335] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2007] [Revised: 01/22/2008] [Accepted: 01/24/2008] [Indexed: 12/27/2022]
|
23
|
de Heer P, Sandel MH, Guertens G, de Boeck G, Koudijs MM, Nagelkerke JF, Junggeburt JMC, de Bruijn EA, van de Velde CJH, Kuppen PJK. Celecoxib inhibits growth of tumors in a syngeneic rat liver metastases model for colorectal cancer. Cancer Chemother Pharmacol 2008; 62:811-9. [PMID: 18247029 PMCID: PMC2516537 DOI: 10.1007/s00280-007-0668-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2007] [Accepted: 12/21/2007] [Indexed: 12/13/2022]
Abstract
Introduction Nonsteroidal anti-inflammatory drugs (NSAIDs) have been shown to reduce the risk of colorectal cancer in cyclooxygenase-2 (COX-2) overexpressing colorectal cancers. The present study was designed to evaluate the inhibitory effects of the COX-2 inhibitor celecoxib on the growth of colorectal cancer liver metastases in a syngeneic rat model, CC531. Materials and methods The effects of celecoxib on cell viability in vitro were evaluated by treatment of CC531 tumor cell cultures with celecoxib. In vivo, Wag/Rij rats were inoculated with CC531 tumor cells at two sites in the liver and treated with celecoxib starting one week before, or directly after tumor inoculation. Control rats were inoculated without treatment. Three weeks after tumor inoculation rats were sacrificed. Tumor size, immune cell infiltration, caspase-3 activity, PGE2 and celecoxib levels were determined. Results CC531 tumors did not show COX-2 expression. Tumor growth was significantly inhibited by celecoxib treatment in a dose dependent manner. Immune cell infiltration was decreased after celecoxib treatment, indicating that the immune system was not involved in preventing tumor growth. Tumor caspase-3 levels were only significantly increased if treatment was started before tumor inoculation. Celecoxib serum concentration starting at 0.84 μg/ml significantly inhibited the outgrowth of CC531 liver tumors. In contrast, in vitro concentrations of celecoxib of at least 12 μg/ml were needed to affect tumor cell viability. Conclusion These results suggest that the inhibitory effects of celecoxib on tumor growth are not by direct cytotoxicity, but by creating an unfavorable environment for tumor growth.
Collapse
Affiliation(s)
- Pieter de Heer
- Department of Surgery, K6-R, Leiden University Medical Center, P.O. Box 9600, 2300, RC, Leiden, The Netherlands
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Cardoso J, Boer J, Morreau H, Fodde R. Expression and genomic profiling of colorectal cancer. Biochim Biophys Acta Rev Cancer 2006; 1775:103-37. [PMID: 17010523 DOI: 10.1016/j.bbcan.2006.08.004] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 08/11/2006] [Accepted: 08/12/2006] [Indexed: 12/13/2022]
Abstract
Colorectal cancer still represents a paradigm for the elucidation of the cellular, genetic and molecular mechanisms that underly solid tumor initiation, progression to malignancy, and metastasis to distal organ sites. The relative ease with which pathological specimens can be obtained by either surgery or endoscopy from different stages of tumor progression has facilitated the application of omics technologies to allow the genome-wide analysis both at the RNA (gene expression) and DNA (aneuploidy) levels. Here, we have reviewed the multiplicity of studies appeared to date in the scientific literature on the expression and genomic analysis of colorectal cancer, and attempted an integration of the profiling data generated and made available in the public domain. This approach is likely to pinpoint specific chromosomal loci and the corresponding genes which (i) play rate-limiting roles in colorectal cancer, (ii) represent putative diagnostic and prognostic markers for the accurate prediction of clinical outcome and response to treatment, and (iii) encompass potential therapeutic targets. Moreover, cross-species data mining and integration of the human colorectal cancer profiles with those obtained from mouse models of intestinal tumorigenesis will even more contribute to the elucidation of highly conserved pathways and cellular functions underlying malignancy in the GI tract. Notwithstanding the above promises, tumor heterogeneity, limited cohort sizes, and methodological differences among experimental and bioinformatic approaches still poses main obstacles towards the optimal utilization and integration of omics profiles.
Collapse
Affiliation(s)
- J Cardoso
- Department of Pathology, Josephine Nefkens Institute, Erasmus University Medical Center, 3000CA Rotterdam, The Netherlands
| | | | | | | |
Collapse
|
25
|
Song G, Mao YB, Cai QF, Yao LM, Ouyang GL, Bao SD. Curcumin induces human HT-29 colon adenocarcinoma cell apoptosis by activating p53 and regulating apoptosis-related protein expression. Braz J Med Biol Res 2005; 38:1791-8. [PMID: 16302093 DOI: 10.1590/s0100-879x2005001200007] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Curcumin, a major yellow pigment and active component of turmeric, has multiple anti-cancer properties. However, its molecular targets and mechanisms of action on human colon adenocarcinoma cells are unknown. In the present study, we examined the effects of curcumin on the proliferation of human colon adenocarcinoma HT-29 cells by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide method and confirmed the curcumin-induced apoptosis by morphology and DNA ladder formation. At the same time, p53, phospho-p53 (Ser15), and other apoptosis-related proteins such as Bax, Bcl-2, Bcl-xL, pro-caspase-3, and pro-caspase-9 were determined by Western blot analysis. The colon adenocarcinoma cells were treated with curcumin (0-75 microM) for 0-24 h. We observed that p53 was highly expressed in HT-29 cells and curcumin could up-regulate the serine phosphorylation of p53 in a time- and concentration-dependent manner. An increase in expression of the pro-apoptotic factor Bax and a decrease in expression of the anti-apoptotic factor Bcl-2 were also observed in a time-dependent manner after exposure of 50 microM curcumin, while the expression of the anti-apoptotic factor Bcl-xL was unchanged. Curcumin could also down-regulate the expression of pro-caspase-3 and pro-caspase-9 in a time-dependent manner. These data suggest a possible underlying molecular mechanism whereby curcumin could induce the apoptosis signaling pathway in human HT-29 colon adenocarcinoma cells by p53 activation and by the regulation of apoptosis-related proteins. This property of curcumin suggests that it could have a possible therapeutic potential in colon adenocarcinoma patients.
Collapse
Affiliation(s)
- G Song
- The Key Laboratory, Ministry of Education for Cell Biology and Tumor Cell Engineering, Xiamen University, 422 South Siming Road, Xiamen 361005, China
| | | | | | | | | | | |
Collapse
|
26
|
Shichijo S, Ito M, Azuma K, Komatsu N, Maeda Y, Ishihara Y, Nakamura T, Harada M, Itoh K. A unique gene having homology with the kinesin family member 18A encodes a tumour-associated antigen recognised by cytotoxic T lymphocytes from HLA-A2+ colon cancer patients. Eur J Cancer 2005; 41:1323-30. [PMID: 15939267 DOI: 10.1016/j.ejca.2005.02.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2004] [Revised: 02/15/2005] [Accepted: 02/17/2005] [Indexed: 12/22/2022]
Abstract
Colon cancer is one of the major malignant tumours for which the development of a new treatment modality is needed. To provide the scientific basis for a specific immunotherapy for colon cancer, we looked for tumour-associated antigens recognised by cytotoxic T lymphocytes (CTLs) from human leukocyte antigen (HLA)-A2+ colon cancer patients. We report here a unique gene, 3362 base-pairs (bp) long, which has homology with the kinesin family member 18A. This gene was expressed at the mRNA level in the majority of tumour cells, but not in any normal tissues tested except for testis and lung. Two of 16 peptides with HLA-A2-binding motifs were recognised by tumour-reactive CTLs. In addition, these two peptides had the ability to induce HLA-A2-restricted and cancer-reactive CTLs from peripheral blood mononuclear cells (PBMCs) of colon cancer patients with several HLA-A2 subtypes. Overall, this study provides new information about a colon cancer-related antigen that might be an appropriate target for specific immunotherapy in HLA-A2+ colon cancer patients.
Collapse
Affiliation(s)
- Shigeki Shichijo
- Department of Immunology, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|