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Riley GM, Steffner R, Kwong S, Chin A, Boutin RD. MRI of Soft-Tissue Tumors: What to Include in the Report. Radiographics 2024; 44:e230086. [PMID: 38696323 DOI: 10.1148/rg.230086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
MRI serves as a critical step in the workup, local staging, and treatment planning of extremity soft-tissue masses. For the radiologist to meaningfully contribute to the management of soft-tissue masses, they need to provide a detailed list of descriptors of the lesion outlined in an organized report. While it is occasionally possible to use MRI to provide a diagnosis for patients with a mass, it is more often used to help with determining the differential diagnosis and planning of biopsies, surgery, radiation treatment, and chemotherapy (when provided). Each descriptor on the list outlined in this article is specifically aimed to assist in one or more facets of the overall approach to soft-tissue masses. This applies to all masses, but in particular sarcomas. Those descriptors are useful to help narrow the differential diagnosis and ensure concordance with a pathologic diagnosis and its accompanying grade assignment of soft-tissue sarcomas. These include a lesion's borders and shape, signal characteristics, and contrast enhancement pattern; the presence of peritumoral edema and peritumoral enhancement; and the presence of lymph nodes. The items most helpful in assisting surgical planning include a lesion's anatomic location, site of origin, size, location relative to a landmark, relationship to adjacent structures, and vascularity including feeding and draining vessels. The authors provide some background information on soft-tissue sarcomas, including their diagnosis and treatment, for the general radiologist and as a refresher for radiologists who are more experienced in tumor imaging. ©RSNA, 2024 See the invited commentary by Murphey in this issue.
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Affiliation(s)
- Geoffrey M Riley
- From the Departments of Radiology (G.M.R., R.D.B.) and Orthopedic Surgery (R.S.), Stanford University Medical Center, 300 Pasteur Dr, Stanford, CA 94305-5105; Department of Radiology, The Permanente Medical Group, Oakland, Calif (S.K.); and Department of Radiation Oncology, Stanford Cancer Institute, Stanford, Calif (A.C.)
| | - Robert Steffner
- From the Departments of Radiology (G.M.R., R.D.B.) and Orthopedic Surgery (R.S.), Stanford University Medical Center, 300 Pasteur Dr, Stanford, CA 94305-5105; Department of Radiology, The Permanente Medical Group, Oakland, Calif (S.K.); and Department of Radiation Oncology, Stanford Cancer Institute, Stanford, Calif (A.C.)
| | - Steven Kwong
- From the Departments of Radiology (G.M.R., R.D.B.) and Orthopedic Surgery (R.S.), Stanford University Medical Center, 300 Pasteur Dr, Stanford, CA 94305-5105; Department of Radiology, The Permanente Medical Group, Oakland, Calif (S.K.); and Department of Radiation Oncology, Stanford Cancer Institute, Stanford, Calif (A.C.)
| | - Alexander Chin
- From the Departments of Radiology (G.M.R., R.D.B.) and Orthopedic Surgery (R.S.), Stanford University Medical Center, 300 Pasteur Dr, Stanford, CA 94305-5105; Department of Radiology, The Permanente Medical Group, Oakland, Calif (S.K.); and Department of Radiation Oncology, Stanford Cancer Institute, Stanford, Calif (A.C.)
| | - Robert D Boutin
- From the Departments of Radiology (G.M.R., R.D.B.) and Orthopedic Surgery (R.S.), Stanford University Medical Center, 300 Pasteur Dr, Stanford, CA 94305-5105; Department of Radiology, The Permanente Medical Group, Oakland, Calif (S.K.); and Department of Radiation Oncology, Stanford Cancer Institute, Stanford, Calif (A.C.)
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Faria RS, Silva HD, Mello-Andrade F, Pires WC, de Castro Pereira F, de Lima AP, de Fátima Oliveira Santos S, Teixeira TM, da Silva PFF, Naves PLF, Batista AA, da Silva Oliveira RJ, Reis RM, de Paula Silveira-Lacerda E. Ruthenium(II)/Benzonitrile Complex Induces Cytotoxic Effect in Sarcoma-180 Cells by Caspase-Mediated and Tp53/p21-Mediated Apoptosis, with Moderate Brine Shrimp Toxicity. Biol Trace Elem Res 2020; 198:669-680. [PMID: 32266641 DOI: 10.1007/s12011-020-02098-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 02/26/2020] [Indexed: 12/12/2022]
Abstract
Ruthenium(II)/benzonitrile complexes have demonstrated promising anticancer properties. Considering that there are no specific therapies for treating sarcoma, we decided to evaluate the cytotoxic, genotoxic, and lethal effects of cis-[RuCl(BzCN)(phen)(dppb)]PF6 (BzCN = benzonitrile; phen = 1,10-phenanthroline; dppb = 1,4-bis-(diphenylphosphino)butane), as well as the mechanism of cell death induction that occurs against murine sarcoma-180 tumor. Thus, MTT assay was applied to assess the ruthenium cytotoxicity, showing that the compound is a more potent inhibitor for the sarcoma-180 tumor cell viability than normal cells (lymphocytes). The comet assay indicated low genotoxic for normal cells. cis-[RuCl(BzCN)(phen)(dppb)]PF6 also showed moderate lethality in Artemia salina. The complex induced cell cycle arrest in the G0/G1 phase in sarcoma-180 cells. In addition, the complex caused S180 cells to die by apoptosis by an increase in Annexin-V-positive cells and morphological changes typical of apoptotic cells. Additionally, cis-[RuCl(BzCN)(phen)(dppb)]PF6 increased the gene expression of Bax, Casp3, and Tp53 in S180 cells. By using a western blot, we observed an increased protein level of TNF-R2, Bax, and p21. In conclusion, cis-[RuCl(BzCN)(phen)(dppb)]PF6 is active and selective for sarcoma-180 cells, leading to cell cycle arrest at the G0/G1 and cell death through a caspases-mediated and Tp53/p21-mediated pathway.
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Affiliation(s)
- Raquel Santos Faria
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
| | - Hugo Delleon Silva
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
- Uni-Anhanguera University Center of Goias, Goiania, Goiás, 74423-115, Brazil
| | - Francyelli Mello-Andrade
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
- Department of Chemistry, Federal Institute of Education, Science and Technology of Goiás, Goiania, Goiás, 74055-110, Brazil
| | - Wanessa Carvalho Pires
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
| | - Flávia de Castro Pereira
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
| | - Aliny Pereira de Lima
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
- Faculty of Brazil Institute (FIBRA), Anapolis, Goiás, 75133-050, Brazil
| | - Sônia de Fátima Oliveira Santos
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
| | - Thallita Monteiro Teixeira
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
| | - Paula Francinete Faustino da Silva
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil
| | | | - Alzir Azevedo Batista
- Department of Chemistry, Federal University of São Carlos, Sao Carlos, São Paulo, 13565-905, Brazil
| | | | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, 14784-400, Brazil
| | - Elisângela de Paula Silveira-Lacerda
- Department of Genetics, Laboratory of Molecular Genetics and Cytogenetics, Institute of Biological Sciences, Federal University of Goiás, Avenida Esperança, s/n, Campus Samambaia (Campus II), Cx. Postal 131, Goiania, GO, 74690-900, Brazil.
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Rodrigues HF, Capistrano G, Mello FM, Zufelato N, Silveira-Lacerda E, Bakuzis AF. Precise determination of the heat delivery duringin vivomagnetic nanoparticle hyperthermia with infrared thermography. Phys Med Biol 2017; 62:4062-4082. [DOI: 10.1088/1361-6560/aa6793] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Delang L, Scheers E, Grabner M, Verpaalen B, Helsen N, Vanstreels E, Daelemans D, Verfaillie C, Neyts J. Understanding the molecular mechanism of host-based statin resistance in hepatitis C virus replicon containing cells. Biochem Pharmacol 2015; 96:190-201. [PMID: 26070251 DOI: 10.1016/j.bcp.2015.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 06/02/2015] [Indexed: 12/16/2022]
Abstract
A number of statins, the cholesterol-lowering drugs, inhibit the in vitro replication of hepatitis C virus (HCV). In HCV-infected patients, addition of statins to the earlier standard of care therapy (pegIFN-α and ribavirin) resulted in increased sustained virological response rates. The mechanism by which statins inhibit HCV replication has not yet been elucidated. In an attempt to gain insight in the underlying mechanism, hepatoma cells carrying an HCV replicon were passaged in the presence of increasing concentrations of fluvastatin. Fluvastatin-resistant replicon containing cells could be generated and proved ∼8-fold less susceptible to fluvastatin than wild-type cultures. The growth efficiency of the resistant replicon containing cells was comparable to that of wild-type replicon cells. The fluvastatin-resistant phenotype was not conferred by mutations in the viral genome but is caused by cellular changes. The resistant cell line had a markedly increased HMG-CoA reductase expression upon statin treatment. Furthermore, the expression of the efflux transporter P-gp was increased in fluvastatin-resistant replicon cells (determined by qRT-PCR and flow cytometry). This increased expression resulted also in an increased functional transport activity as measured by the P-gp mediated efflux of calcein AM. In conclusion, we demonstrate that statin resistance in HCV replicon containing hepatoma cells is conferred by changes in the cellular environment.
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Affiliation(s)
- Leen Delang
- Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Els Scheers
- Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Mareike Grabner
- Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Ben Verpaalen
- Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Nicky Helsen
- Stem Cell Biology and Embryology, University of Leuven, O&N IV Herestraat 49 - bus 804, 3000 Leuven, Belgium.
| | - Els Vanstreels
- Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Dirk Daelemans
- Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Catherine Verfaillie
- Stem Cell Biology and Embryology, University of Leuven, O&N IV Herestraat 49 - bus 804, 3000 Leuven, Belgium.
| | - Johan Neyts
- Rega Institute for Medical Research, University of Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
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Establishment of surfactant-associated protein a suicide gene system and analysis of its activity. ACTA ACUST UNITED AC 2014; 34:337-342. [DOI: 10.1007/s11596-014-1279-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 03/17/2014] [Indexed: 11/26/2022]
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Sellner L, Stiefelhagen M, Kleinschmidt JA, Laufs S, Wenz F, Fruehauf S, Zeller WJ, Veldwijk MR. Generation of efficient human blood progenitor-targeted recombinant adeno-associated viral vectors (AAV) by applying an AAV random peptide library on primary human hematopoietic progenitor cells. Exp Hematol 2008; 36:957-64. [PMID: 18495326 DOI: 10.1016/j.exphem.2008.03.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2007] [Revised: 02/27/2008] [Accepted: 03/11/2008] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Currently standard recombinant adeno-associated virus serotype 2(rAAV2)-based vectors lack the efficiency for gene transfer into primary human CD34(+) peripheral blood progenitor cells (PBPC). MATERIALS AND METHODS An advancement in vector development now allows the generation of rAAV capsid mutants that offer higher target cell efficiency and specificity. To increase the gene transfer into hematopoietic progenitor cells, we applied this method for the first time on primary human CD34(+) PBPC cells. RESULTS On a panel of leukemia cell lines (CML/AML), significantly higher gene transfer efficiency of the rAAV capsid mutants (up to 100% gene transfer) was observed compared to standard rAAV2 vectors. A higher transduction efficiency in the imatinib-resistant cell line LAMA84-R than in their sensitive counterpart LAMA84-S and a pronounced difference in susceptibility for the capsid mutants vs rAAV2 in LAMA84-S were particularly striking. On solid tumor cell lines, on the other hand, rAAV2 was more efficient than the capsid mutants, suggesting an increased specificity of our capsid mutants for hematopoietic progenitor cells. On primary human CD34(+) PBPC significantly higher (up to eightfold; 16% green fluorescent protein-positive) gene transfer could be obtained with the newly generated vectors compared to standard rAAV2 vectors. CONCLUSION These novel vectors may enable efficient gene transfer using rAAV-based vectors into primary human blood progenitor cells for a future clinical application.
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Affiliation(s)
- Leopold Sellner
- Pharmacology of Cancer Treatment (G402), German Cancer Research Center, Heidelberg, Germany
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Li C, Bowles DE, van Dyke T, Samulski RJ. Adeno-associated virus vectors: potential applications for cancer gene therapy. Cancer Gene Ther 2006; 12:913-25. [PMID: 15962012 PMCID: PMC1361306 DOI: 10.1038/sj.cgt.7700876] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Augmenting cancer treatment by protein and gene delivery continues to gain momentum based on success in animal models. The primary hurdle of fully exploiting the arsenal of molecular targets and therapeutic transgenes continues to be efficient delivery. Vectors based on adeno-associated virus (AAV) are of particular interest as they are capable of inducing transgene expression in a broad range of tissues for a relatively long time without stimulation of a cell-mediated immune response. Perhaps the most important attribute of AAV vectors is their safety profile in phase I clinical trials ranging from CF to Parkinson's disease. The utility of AAV vectors as a gene delivery agent in cancer therapy is showing promise in preclinical studies. In this review, we will focus on the basic biology of AAV as well as recent progress in the use of this vector in cancer gene therapy.
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Affiliation(s)
- Chengwen Li
- Gene Therapy Center, University of North Carolina (UNC) at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Dawn E Bowles
- Gene Therapy Center, University of North Carolina (UNC) at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Terry van Dyke
- Department of Biochemistry and Biophysics, University of North Carolina (UNC) at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina (UNC) at Chapel Hill, Chapel Hill, North Carolina 27599, USA; and
| | - Richard Jude Samulski
- Gene Therapy Center, University of North Carolina (UNC) at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Department of Pharmacology, University of North Carolina (UNC) at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Address correspondence and reprint requests to: Professor Richard Jude Samulski/Terry van Dyke, Gene Therapy Center, University of North Carolina (UNC) at Chapel Hill, CB#7352, Chapel Hill, NC27599, USA. E-mails: or
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Mocellin S, Rossi CR, Brandes A, Nitti D. Adult soft tissue sarcomas: Conventional therapies and molecularly targeted approaches. Cancer Treat Rev 2006; 32:9-27. [PMID: 16338075 DOI: 10.1016/j.ctrv.2005.10.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2005] [Revised: 09/21/2005] [Indexed: 01/12/2023]
Abstract
The therapeutic approach to soft tissue sarcomas (STS) has evolved over the past two decades based on the results from randomized controlled trials, which are guiding physicians in the treatment decision-making process. Despite significant improvements in the control of local disease, a significant number of patients ultimately die of recurrent/metastatic disease following radical surgery due to a lack of effective adjuvant treatments. In addition, the characteristic chemoresistance of STS has compromised the therapeutic value of conventional antineoplastic agents in cases of unresectable advanced/metastatic disease. Therefore, novel therapeutic strategies are urgently needed to improve the prognosis of patients with STS. Recent advances in STS biology are paving the way to the development of molecularly targeted therapeutic strategies, the efficacy of which relies not only on the knowledge of the molecular mechanisms underlying cancer development/progression but also on the personalization of the therapeutic regimen according to the molecular features of individual tumours. In this work, we review the state-of-the-art of conventional treatments for STS and summarize the most promising findings in the development of molecularly targeted therapeutic approaches.
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Affiliation(s)
- Simone Mocellin
- Surgery Branch, Department of Oncological and Surgical Sciences, University of Padova, Via Giustiniani 2, 35128 Padua, Italy.
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Nagy KZ, Laufs S, Gentner B, Naundorf S, Kuehlcke K, Topaly J, Buss EC, Zeller WJ, Fruehauf S. Clonal analysis of individual marrow-repopulating cells after experimental peripheral blood progenitor cell transplantation. Stem Cells 2005; 22:570-9. [PMID: 15277702 DOI: 10.1634/stemcells.22-4-570] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Methods to analyze the clonality of an adverse event in preclinical or clinical retroviral stem cell gene therapy protocols are needed. We analyzed the progeny of retrovirally transduced human peripheral blood progenitor cells (PBPCs) after transplantation and engraftment in immune-deficient mice. The integration site of the provirus serves as a unique tag of the individual transduced PBPC. A plasmid library of junctions between proviral and human genomic DNA was generated. We were able to detect individual transduced cell clones that amounted to 0.14%-0.0001% of chimeric bone marrow cells. This is the first report in which the contribution of individual marrow-repopulating cells to human hematopoiesis is directly quantified.
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