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Liu T, Ma J, Hou D, Wang W, Cao H. Haplotype-GGGT in long non-coding RNA MALAT1 inhibits brain metastatic lung cancer and lymph nodes of lung cancer via the MALAT1/miR-328/KATNB1. Aging (Albany NY) 2023; 15:1918-1930. [PMID: 36934373 PMCID: PMC10085600 DOI: 10.18632/aging.204563] [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: 10/29/2022] [Accepted: 02/15/2023] [Indexed: 03/20/2023]
Abstract
The up-regulation of Katanin P8 has been reported to be correlated with a larger tumor size and lymph node metastasis in non-small-cell lung cancer (NSCLC) patients. And lncRNA MALAT1 was demonstrated to promote the proliferation of chronic myeloid leukemia cells via modulating miR-328. 135 lung cancer patients were divided into 6 groups according to their genotypes of MALAT1. The expression of KATNB1 was negatively correlated with the GGGT genotype of MALAT1. Decreased lymph node size and tumor size of brain metastatic lung were observed in patients with GGGT genotype of MALAT1. The luciferase activities of MALAT1 and KATNB1 were remarkably suppressed by miR-328 in A549 and H460. And the down-regulation of MALAT1 or up-regulation of miR-328 significantly repressed the KATNB1 expression in A549 and H460 cells. MALAT1 expression was reduced in patients carrying haplotype GGGT. A signaling pathway of MALAT1/miR-328/KATNB1 was established to explain the down-regulation of KATNB1 mRNA in patients carrying haplotype GGGT and reduced lymph node size in lung cancer and tumor size in brain metastatic lung cancer.
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Affiliation(s)
- Tingting Liu
- Department of Medical Imaging, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Jianpeng Ma
- Department of Magnetic Resonance Imaging, Dingbian County People’s Hospital, Dingbian, Yulin, Shaanxi 718600, China
| | - Dongmei Hou
- Department of Medical Imaging, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Weiqi Wang
- School of Pharmacy, Nantong University, Nantong, Jiangsu 226001, China
| | - Hetao Cao
- Department of Medical Imaging, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
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Does Primary Tumor Resection Induce Accelerated Metastasis in Breast Cancer? A Review. J Surg Res 2023; 283:1005-1017. [PMID: 36914990 DOI: 10.1016/j.jss.2022.11.064] [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: 05/07/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Over a century of cumulative experimental results and clinical data have suggested that surgical procedures of primary tumors promote tumor progression and metastasis in breast cancer and other cancer patients, suggesting a potential interplay linking primary tumors and distant lesions that lead to metastasis development triggered by primary tumor removal. Such evidence may generate a departure in terms of our attitude toward the surgery. However, the reliability and prognostic benefits of tumor surgery, especially for chemotherapy-resistant patients, are indisputable. Thus, it is important to explore the mechanism underlying this surgery-induced cancer progression to guide individual clinical treatment and improve tumor control. MATERIALS AND METHODS We conducted a comprehensive review in PubMed in October 2021 to determine the article outline. Non-English and repetitive articles were excluded. The year, topic, key findings, and opinions of each article were gathered. RESULTS This review not only comprehensively summarizes the potential mechanisms of primary tumors interacting with the growth of metastases but also discusses whether and how surgical resection of primary lesions can trigger tumor metastasis and development. At the same time, this article also provides our understanding of clinical findings and future directions on this topic. In addition, the combination of surgery and some potentially beneficial therapeutic interventions for postoperative tumor metastasis control was also mentioned. CONCLUSIONS There are viewpoints supporting an acceleration of metastasis after surgery for breast cancer and fundamental research on relevant therapies, although controversial. Further attention should be focused on the gap between current preclinical data and the complicated clinical therapeutic combination during surgery in metastatic breast cancer patients.
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Shanja-Grabarz X, Coste A, Entenberg D, Di Cristofano A. Real-time, high-resolution imaging of tumor cells in genetically engineered and orthotopic models of thyroid cancer. Endocr Relat Cancer 2020; 27:529-539. [PMID: 32698130 PMCID: PMC7450603 DOI: 10.1530/erc-20-0295] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 12/27/2022]
Abstract
Genetically engineered and orthotopic xenograft mouse models have been instrumental for increasing our understanding of thyroid cancer progression and for the development of novel therapeutic approaches in a setting that is more physiologically relevant than the classical subcutaneous flank implants. However, the anatomical location of the thyroid gland precludes a non-invasive analysis at the cellular level of the interactions between tumor cells and the surrounding microenvironment and does not allow a real-time evaluation of the response of tumor cells to drug treatments. As a consequence, such studies have generally only relied on endpoint approaches, limiting the amount and depth of the information that could be gathered. Here we describe the development of an innovative approach to imaging specific aspects of thyroid cancer biology, based on the implantation of a permanent, minimally invasive optical window that allows high-resolution, multi-day, intravital imaging of the behavior and cellular dynamics of thyroid tumors in the mouse. We show that this technology allows visualization of fluorescently tagged tumor cells both in immunocompetent, genetically engineered mouse models of anaplastic thyroid cancer (ATC) and in immunocompromised mice carrying orthotopic implanted human or mouse ATC cells. Furthermore, the use of recipient mice in which endothelial cells and macrophages are fluorescently labeled allows the detection of the spatial and functional relationship between tumor cells and their microenvironment. Finally, we show that ATC cells expressing a fluorescent biosensor for caspase 3 activity can be effectively utilized to evaluate, in real-time, the efficacy and kinetics of action of novel small molecule therapeutics. This novel approach to intravital imaging of thyroid cancer represents a platform that will allow, for the first time, the longitudinal, in situ analysis of tumor cell responses to therapy and of their interaction with the microenvironment.
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Affiliation(s)
- Xhesika Shanja-Grabarz
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Anouchka Coste
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - David Entenberg
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Antonio Di Cristofano
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
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Hem S, Beltrame S, Rasmussen J, Vecchi E, Landriel F, Yampolsky C. [Usefulness of minimally invasive spine surgery for the management of thoracolumbar spinal metastases]. Surg Neurol Int 2019; 10:S1-S11. [PMID: 31123635 PMCID: PMC6416751 DOI: 10.4103/sni.sni_288_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Indexed: 11/10/2022] Open
Abstract
Objetivo: Describir los resultados quirúrgicos y evolución de pacientes con metástasis espinales toraco-lumbares operadas con técnica mínimamente invasiva (MISS) utilizando para la decisión terapéutica la evaluación: Neurológica, Oncológica, Mecánica y Sistémica (NOMS). Material y Métodos: Se incluyeron en forma prospectiva pacientes con metástasis espinales toraco-lumbares operados con técnica MISS por el Servicio de Neurocirugía del Hospital Italiano de Buenos Aires entre Junio de 2014 y Junio de 2017. Se utilizó en todos los casos el algoritmo de evaluación NOMS para la decisión terapéutica. Se analizaron los resultados quirúrgicos postoperatorios como el Karnofsky performance status, dolor (VAS – visual analog scale), Frankel, pérdida sanguínea, necesidad de transfusiones, complicaciones, uso de opioides y días de internación. Se consideró como estadísticamente significativo una P < 0.05. Resultados: Durante el período de estudio 26 pacientes cumplieron los criterios de inclusión, de los cuales 13 fueron mujeres. La edad promedio fue 57 (27-83) años. El origen más frecuente de las lesiones fue cáncer de mama (27%). El síntoma más constante fue el dolor (96%), aunque 12 pacientes manifestaron inicialmente mielopatía (46%). Se observaron grados avanzados de invasión del canal con requerimiento de descompresión en el 65% de los casos. Acorde al Spinal Instability Neoplastic Score, 23 pacientes (89%) presentaron lesiones potencialmente inestables o inestables, requiriendo estabilización. Se evidenció una mejoría estadísticamente significativa del VAS en el 77% y del Frankel en el 67% de los casos tras la cirugía. No hubo necesidad de transfusiones. Se registró sólo una complicación quirúrgica leve (4%). La media de internación fue de 5.5 días. Conclusión: En nuestra serie y utilizando como algoritmo terapéutico el NOMS, la cirugía MISS resultó efectiva tanto para la descompresión como para la estabilización espinal, con baja tasa de complicaciones y rápida recuperación postoperatoria.
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Affiliation(s)
- Santiago Hem
- Departamento de Neurocirugía, Hospital Italiano de Buenos Aires, Peron, CABA, Argentina
| | - Sofía Beltrame
- Departamento de Neurocirugía, Hospital Italiano de Buenos Aires, Peron, CABA, Argentina
| | - Jorge Rasmussen
- Departamento de Neurocirugía, Hospital Italiano de Buenos Aires, Peron, CABA, Argentina
| | - Eduardo Vecchi
- Departamento de Neurocirugía, Hospital Italiano de Buenos Aires, Peron, CABA, Argentina
| | - Federico Landriel
- Departamento de Neurocirugía, Hospital Italiano de Buenos Aires, Peron, CABA, Argentina
| | - Claudio Yampolsky
- Departamento de Neurocirugía, Hospital Italiano de Buenos Aires, Peron, CABA, Argentina
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Jung JM, Chung CK, Kim CH, Yang SH. Minimally Invasive Surgery without Decompression for Hepatocellular Carcinoma Spinal Metastasis with Epidural Spinal Cord Compression Grade 2. J Korean Neurosurg Soc 2019; 62:467-475. [PMID: 30919607 PMCID: PMC6616991 DOI: 10.3340/jkns.2018.0199] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 11/20/2018] [Indexed: 11/27/2022] Open
Abstract
Objective There is a lack of knowledge regarding whether decompression is necessary in treating patients with epidural spinal cord compression (ESCC) grade 2. The purpose of this study was to compare the outcomes of minimally invasive surgery (MIS) without decompression and conventional open surgery (palliative laminectomy) for patients with hepatocellular carcinoma (HCC) spinal metastasis of ESCC grade 2.
Methods Patients with HCC spinal metastasis requiring surgery were retrospectively reviewed. Patients with ESCC grade 2, medically intractable mechanical back pain, a Nurick grade better than 3, 3–6 months of life expectancy, Tomita score ≥5, and Spinal Instability Neoplastic Score ≥7 were included. Patients with neurological deficits, other systemic illnesses and less than 1 month of life expectancy were excluded. Thirty patients were included in the study, including 17 in the open surgery group (until 2008) and 13 in the MIS group (since 2009).
Results The MIS group had a significantly shorter operative time (94.2±48.2 minutes vs. 162.9±52.3 minutes, p=0.001), less blood loss (140.0±182.9 mL vs. 1534.4±1484.2 mL, p=0.002), and less post-operative intensive care unit transfer (one patient vs. eight patients, p=0.042) than the open surgery group. The visual analogue scale for back pain at 3 months post-operation was significantly improved in the MIS group than in the open surgery group (3.0±1.2 vs. 4.3±1.2, p=0.042). The MIS group had longer ambulation time (183±33 days vs. 166±36 days) and survival time (216±38 days vs. 204±43 days) than the open surgery group without significant difference (p=0.814 and 0.959, respectively).
Conclusion MIS without decompression would be a good choice for patients with HCC spinal metastasis of ESCC grade 2, especially those with limited prognosis, mechanical instability and no neurologic deficit.
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Affiliation(s)
- Jong-Myung Jung
- Department of Neurosurgery, Spine Center, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea
| | - Chun Kee Chung
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.,Neuroscience Research Institute, Seoul National University Medical Research Center, Seoul, Korea.,Clinical Research Institute, Seoul National University Hospital, Seoul, Korea.,Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea
| | - Chi Heon Kim
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.,Neuroscience Research Institute, Seoul National University Medical Research Center, Seoul, Korea.,Clinical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Seung Heon Yang
- Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.,Neuroscience Research Institute, Seoul National University Medical Research Center, Seoul, Korea.,Clinical Research Institute, Seoul National University Hospital, Seoul, Korea
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Mussawy H, Viezens L, Schroeder M, Hettenhausen S, Sündermann J, Wellbrock J, Kossow K, Schaefer C. The bone microenvironment promotes tumor growth and tissue perfusion compared with striated muscle in a preclinical model of prostate cancer in vivo. BMC Cancer 2018; 18:979. [PMID: 30326868 PMCID: PMC6192198 DOI: 10.1186/s12885-018-4905-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 10/05/2018] [Indexed: 12/21/2022] Open
Abstract
Background Prostate cancer-related morbidity is associated with its preferential spread to the bone. Although the molecular interactions between the bone microenvironment and cancer cells have been researched extensively, the relevance of the microvascular properties of prostate cancer bone metastases remains largely unknown. Most preclinical studies focusing on microvascular analyses are based on heterotopic tumor implantation, whereas the impact of the microenvironment on site-specific growth behavior and angiogenesis is rarely addressed. Methods The microvascular changes associated with tumor growth in bone and soft tissue were characterized by implanting single cell suspensions of LnCap, Du145, and Pc3 cells into the femur (femur window) or striated muscle (dorsal skinfold chamber) of NSG mice. Tumor growth and the local microvasculature were analyzed for 21 days using intravital fluorescence microscopy. Results The results showed a higher engraftment of tumor cells in bone than in striated muscle associated with accelerated growth of LnCap cells and Pc3 cells. Permeability, blood flow, and tissue perfusion rates were greater in bone than in striated muscle. Du145 cells showed similar growth behavior in both tissues with similar vascular properties. The bone microenvironment facilitated tumor engraftment and growth. Increased microvascular density in striated muscle led to a higher tumor burden during early growth, whereas the increased perfusion promoted later prostate cancer growth in bone. Conclusions Monitoring prostate cancer microcirculation in bone and soft tissue may be useful to evaluate the organ-specific efficacy of new treatments. Electronic supplementary material The online version of this article (10.1186/s12885-018-4905-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Haider Mussawy
- Department of Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.
| | - Lennart Viezens
- Department of Trauma, Orthopaedic, and Plastic Surgery, University Medical Center Goettingen, Goettingen, Germany
| | - Malte Schroeder
- Department of Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.,Department of Spine Surgery, Klinikum Bad Bramstedt, 24576, Bad Bramstedt, Germany
| | - Svenja Hettenhausen
- Department of Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Jördis Sündermann
- Department of Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Jasmin Wellbrock
- Department of Hematology, Oncology and Stem Cell Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Kai Kossow
- Center of Psychosocial Medicine, Institute and Policlinics of Medical Psychology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Christian Schaefer
- Department of Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.,Department of Spine Surgery, Klinikum Bad Bramstedt, 24576, Bad Bramstedt, Germany
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The Potential of Minimally Invasive Surgery to Treat Metastatic Spinal Disease versus Open Surgery: A Systematic Review and Meta-Analysis. World Neurosurg 2018; 112:e859-e868. [DOI: 10.1016/j.wneu.2018.01.176] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 01/23/2018] [Indexed: 01/28/2023]
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Mussawy H, Viezens L, Hauenherm G, Schroeder M, Schaefer C. In vivo functional and morphological characterization of bone and striated muscle microcirculation in NSG mice. PLoS One 2017; 12:e0183186. [PMID: 28800593 PMCID: PMC5553939 DOI: 10.1371/journal.pone.0183186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 07/30/2017] [Indexed: 11/18/2022] Open
Abstract
Organ-specific microcirculation plays a central role in tumor growth, tumor cell homing, tissue engineering, and wound healing. Mouse models are widely used to study these processes; however, these mouse strains often possess unique microhemodynamic parameters, making it difficult to directly compare experiments. The full functional characterization of bone and striated muscle microcirculatory parameters in non-obese diabetic-severe combined immunodeficiency/y-chain; NOD-Prkds IL2rg (NSG) mice has not yet been reported. Here, we established either a dorsal skinfold chamber or femur window in NSG mice (n = 23), allowing direct analysis of microcirculatory parameters in vivo by intravital fluorescence microscopy at 7, 14, 21, and 28 days after chamber preparation. Organ-specific differences were observed. Bone had a significantly lower vessel density but a higher vessel diameter than striated muscle. Bone also showed higher effective vascular permeability than striated muscle. The centerline velocity values were similar in the femur window and dorsal skinfold chamber, with a higher volumetric blood flow in bone. Interestingly, bone and striated muscle showed similar tissue perfusion rates. Knowledge of physiological microhemodynamic values of bone and striated muscle in NSG mice makes it possible to analyze pathophysiological processes at these anatomic sites, such as tumor growth, tumor metastasis, and tumor microcirculation, as well as the response to therapeutic agents.
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Affiliation(s)
- Haider Mussawy
- Department of Orthopaedic Surgery, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
- * E-mail:
| | - Lennart Viezens
- Department of Orthopaedic Surgery, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
- Department of Trauma-, Hand-, and Reconstructive Surgery, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Gerrit Hauenherm
- Department of Orthopaedic Surgery, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Malte Schroeder
- Department of Orthopaedic Surgery, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
- Department of Spine Surgery, Klinikum Bad Bramstedt, Bad Bramstedt, Germany
| | - Christian Schaefer
- Department of Orthopaedic Surgery, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
- Department of Spine Surgery, Klinikum Bad Bramstedt, Bad Bramstedt, Germany
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Comparison Between Minimally Invasive Surgery and Conventional Open Surgery for Patients With Spinal Metastasis: A Prospective Propensity Score-Matched Study. Spine (Phila Pa 1976) 2017; 42:789-797. [PMID: 27584676 DOI: 10.1097/brs.0000000000001893] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Prospective propensity score-matched study. OBJECTIVE To compare the outcomes of minimal invasive surgery (MIS) and conventional open surgery for spinal metastasis patients. SUMMARY OF BACKGROUND DATA There is lack of knowledge on whether MIS is comparable to conventional open surgery in treating spinal metastasis. METHODS Patients with spinal metastasis requiring surgery from January 2008 to December 2010 in two spine centers were recruited. The demographic, preoperative, operative, perioperative and postoperative data were collected and analyzed. Thirty MIS patients were matched with 30 open surgery patients using propensity score matching technique with a match tolerance of 0.02 based on the covariate age, tumor type, Tokuhashi score, and Tomita score. RESULTS Both groups had significant improvements in Eastern Cooperative Oncology Group (ECOG), Karnofsky scores, visual analogue scale (VAS) for pain and neurological status postoperatively. However, the difference comparing the MIS and open surgery group was not statistically significant. MIS group had significantly longer instrumented segments (5.5 ± 3.1) compared with open group (3.8 ± 1.7). Open group had significantly longer decompressed segment (1.8 ± 0.8) than MIS group (1.0 ± 1.0). Open group had significantly more blood loss (2062.1 ± 1148.0 mL) compared with MIS group (1156.0 ± 572.3 mL). More patients in the open group (76.7%) needed blood transfusions (with higher average units of blood transfused) compared with MIS group (40.0%). Fluoroscopy time was significantly longer in MIS group (116.1 ± 63.3 s) compared with open group (69.9 ± 42.6 s). Open group required longer hospitalization (21.1 ± 10.8 days) compared with MIS group (11.0 ± 5.0 days). CONCLUSION This study demonstrated that MIS resulted in comparable outcome to open surgery for patients with spinal metastasis but has the advantage of less blood loss, blood transfusions, and shorter hospital stay. LEVEL OF EVIDENCE 3.
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Schroeder M, Viezens L, Wellbrock J, Fiedler W, Rüther W, Algenstaedt P, Hansen-Algenstaedt N, Schaefer C. Sunitinib treatment reduces tumor growth and limits changes in microvascular properties after minor surgical intervention in an in vivo model of secondary breast cancer growth in bone. J Surg Oncol 2016; 113:515-21. [DOI: 10.1002/jso.24185] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 01/13/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Malte Schroeder
- Department of Trauma, Hand, and Reconstructive Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany
- Department of Orthopaedics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Lennart Viezens
- Department of Trauma, Hand, and Reconstructive Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany
- Department of Orthopaedics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Jasmin Wellbrock
- Department of Oncology and Hematology With The Sections Pneumonology and Bone Marrow Transplantation; Hubertus Wald Tumor Center; University Cancer Center Hamburg; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Walter Fiedler
- Department of Oncology and Hematology With The Sections Pneumonology and Bone Marrow Transplantation; Hubertus Wald Tumor Center; University Cancer Center Hamburg; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Wolfgang Rüther
- Department of Orthopaedics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Petra Algenstaedt
- Department of Internal Medicine; University Medical Center Hamburg-Eppendorf; Germany
- Medicum Eppendorf; Hamburg Germany
| | - Nils Hansen-Algenstaedt
- Department of Orthopaedics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
- OrthoCentrum Hamburg; Parkklinik Manhagen; Hamburg Germany
| | - Christian Schaefer
- Department of Orthopaedics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
- Department of Spine Surgery; Klinikum Bad Bramstedt; Bad Bramstedt Germany
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Coghlin C, Murray GI. The role of gene regulatory networks in promoting cancer progression and metastasis. Future Oncol 2014; 10:735-48. [DOI: 10.2217/fon.13.264] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
ABSTRACT: The majority of deaths owing to cancer are ultimately caused by metastatic disease. However, most research, to date, has focused on the molecular features of cancers at their primary sites rather than on understanding disseminated malignancy in its systemic form. The dynamic nature of metastatic malignancy and its behavior as a co-ordinated systemic disease require a cancer progression paradigm that is integrative and can incorporate both the proximate causes of cancer and the broader ultimate causes in an evolutionary and developmental context. The study of robust cellular attractor states that arise directly from the architectural patterns contained within gene regulatory networks is proposed as a conceptual framework through which many of the other disparate models of cancer metastasis can be more clearly viewed and, ultimately, unified, thus providing a new conceptual framework in which to understand cancer progression and metastasis.
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Affiliation(s)
- Caroline Coghlin
- Department of Pathology, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, UK
| | - Graeme I Murray
- Pathology, Division of Applied Medicine, School of Medicine & Dentistry, University of Aberdeen, Aberdeen, UK
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Finley SD, Dhar M, Popel AS. Compartment model predicts VEGF secretion and investigates the effects of VEGF trap in tumor-bearing mice. Front Oncol 2013; 3:196. [PMID: 23908970 PMCID: PMC3727077 DOI: 10.3389/fonc.2013.00196] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 07/13/2013] [Indexed: 12/19/2022] Open
Abstract
Angiogenesis, the formation of new blood vessels from existing vasculature, is important in tumor growth and metastasis. A key regulator of angiogenesis is vascular endothelial growth factor (VEGF), which has been targeted in numerous anti-angiogenic therapies aimed at inhibiting tumor angiogenesis. Systems biology approaches, including computational modeling, are useful for understanding this complex biological process and can aid in the development of novel and effective therapeutics that target the VEGF family of proteins and receptors. We have developed a computational model of VEGF transport and kinetics in the tumor-bearing mouse, which includes three-compartments: normal tissue, blood, and tumor. The model simulates human tumor xenografts and includes human (VEGF121 and VEGF165) and mouse (VEGF120 and VEGF164) isoforms. The model incorporates molecular interactions between these VEGF isoforms and receptors (VEGFR1 and VEGFR2), as well as co-receptors (NRP1 and NRP2). We also include important soluble factors: soluble VEGFR1 (sFlt-1) and α-2-macroglobulin. The model accounts for transport via macromolecular transendothelial permeability, lymphatic flow, and plasma clearance. We have fit the model to available in vivo experimental data on the plasma concentration of free VEGF Trap and VEGF Trap bound to mouse and human VEGF in order to estimate the rates at which parenchymal cells (myocytes and tumor cells) and endothelial cells secrete VEGF. Interestingly, the predicted tumor VEGF secretion rates are significantly lower (0.007-0.023 molecules/cell/s, depending on the tumor microenvironment) than most reported in vitro measurements (0.03-2.65 molecules/cell/s). The optimized model is used to investigate the interstitial and plasma VEGF concentrations and the effect of the VEGF-neutralizing agent, VEGF Trap (aflibercept). This work complements experimental studies performed in mice and provides a framework with which to examine the effects of anti-VEGF agents, aiding in the optimization of such anti-angiogenic therapeutics as well as analysis of clinical data. The model predictions also have implications for biomarker discovery with anti-angiogenic therapies.
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Affiliation(s)
- Stacey D Finley
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine , Baltimore, MD , USA
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