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Teng Y, Mu J, Hu X, Samykutty A, Zhuang X, Deng Z, Zhang L, Cao P, Yan J, Miller D, Zhang HG. Grapefruit-derived nanovectors deliver miR-18a for treatment of liver metastasis of colon cancer by induction of M1 macrophages. Oncotarget 2018; 7:25683-97. [PMID: 27028860 PMCID: PMC5041936 DOI: 10.18632/oncotarget.8361] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 03/10/2016] [Indexed: 02/06/2023] Open
Abstract
Liver metastasis accounts for many of the cancer deaths in patients. Effective treatment for metastatic liver tumors is not available. Here, we provide evidence for the role of miR-18a in the induction of liver M1 (F4/80+interferon gamma (IFNγ)+IL-12+) macrophages. We found that miR-18a encapsulated in grapefruit-derived nanovector (GNV) mediated inhibition of liver metastasis that is dependent upon the induction of M1 (F4/80+IFNγ+IL-12+) macrophages; depletion of macrophages eliminated its anti-metastasis effect. Furthermore, the miR-18a mediated induction of macrophage IFNγ by targeting IRF2 is required for subsequent induction of IL-12. IL-12 then activates natural killer (NK) and natural killer T (NKT) cells for inhibition of liver metastasis of colon cancer. This conclusion is supported by the fact that knockout of IFNγ eliminates miR-18a mediated induction of IL-12, miR-18a treatment has an anti-metastatic effects in T cell deficient mice but there is no anti-metastatic effect on NK and NKT deficient mice. Co-delivery of miR-18a and siRNA IL-12 to macrophages did not result in activation of co-cultured NK and NKT cells. Taken together our results indicate that miR-18a can act as an inhibitor for liver metastasis through induction of M1 macrophages.
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Affiliation(s)
- Yun Teng
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Jingyao Mu
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Xin Hu
- Program in Biostatistics, Bioinformatics and Systems Biology, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA.,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Abhilash Samykutty
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Xiaoying Zhuang
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Zhongbin Deng
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Lifeng Zhang
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Pengxiao Cao
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Jun Yan
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Donald Miller
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA
| | - Huang-Ge Zhang
- Robley Rex VA Medical Center, Louisville, KY 40206, USA.,James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA.,Department of Microbiology and Immunology, University of Louisville, Louisville, KY 40202, USA
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Distribution profile of gadolinium in gadolinium chelate-treated renally-impaired rats: role of pharmaceutical formulation. Eur J Pharm Sci 2015; 72:46-56. [PMID: 25736527 DOI: 10.1016/j.ejps.2015.02.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 02/02/2015] [Accepted: 02/23/2015] [Indexed: 12/30/2022]
Abstract
While not acutely toxic, chronic hepatic effect of certain gadolinium chelates (GC), used as contrast agent for magnetic resonance imaging, might represent a risk in renally-impaired patients due to free gadolinium accumulation in the liver. To answer this question, this study investigated the consequences of the presence of small amounts of either a soluble gadolinium salt ("free" Gd) or low-stability chelating impurity in the pharmaceutical solution of gadoteric acid, a macrocyclic GC with high thermodynamic and kinetic stabilities, were investigated in renally-impaired rats. Renal failure was induced by adding 0.75% adenine in the diet for three weeks. The pharmaceutical and commercial solution of gadoteric acid was administered (5 daily intravenous injections of 2.5 mmol Gd/kg) either alone or after being spiked with either "free" gadolinium (i.e., 0.04% w/v) or low-stability impurity (i.e., 0.06 w/v). Another GC, gadodiamide (low thermodynamic and kinetic stabilities) was given as its commercial solution at a similar dose. Non-chelated gadolinium was tested at two doses (0.005 and 0.01 mmol Gd/kg) as acetate salt. Gadodiamide induced systemic toxicity (mortality, severe epidermal and dermal lesions) and substantial tissue Gd retention. The addition of very low amounts of "free", non-chelated gadolinium or low thermodynamic stability impurity to the pharmaceutical solution of the thermodynamically stable GC gadoteric acid resulted in substantial capture of metal by the liver, similar to what was observed in "free" gadolinium salt-treated rats. Relaxometry studies strongly suggested the presence of free and soluble gadolinium in the liver. Electron microscopy examinations revealed the presence of free and insoluble gadolinium deposits in hepatocytes and Kupffer cells of rats treated with gadoteric acid solution spiked with low-stability impurity, free gadolinium and gadodiamide, but not in rats treated with the pharmaceutical solution of gadoteric acid. The presence of impurities in the GC pharmaceutical solution may have long-term biological consequences.
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Dobos J, Mohos A, Tóvári J, Rásó E, Lőrincz T, Zádori G, Tímár J, Ladányi A. Sex-dependent liver colonization of human melanoma in SCID mice--role of host defense mechanisms. Clin Exp Metastasis 2012. [PMID: 23203681 DOI: 10.1007/s10585-012-9554-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The possibility that endocrine factors may influence the clinical course of malignant melanoma is suggested by the superior survival data of women. In preclinical models we observed a higher rate of colony formation by human melanoma cells in male compared to female SCID mice, but only in the case of the liver and not in other organs. The gender difference could be seen at an early phase of colony formation. On the other hand, in our human melanoma cell lines we failed to detect steroid receptor protein expression, and treatment with sex hormones did not considerably influence their in vitro behavior. Investigating the possible contribution of host cells to the observed gender difference, we performed in vivo blocking experiments applying pretreatment of the animals with Kupffer cell inhibitor gadolinium chloride and the NK cell inhibitor anti-asialo GM1 antibody. While Kupffer cell blockade enhanced melanoma liver colonization equally in the two sexes, a more prominent increase was observed in female than in male mice in the case of NK cell inhibition. Further supporting the importance of NK cells in the lower liver colonization efficiency of melanoma cells in females, gender difference in colony formation was lost in NSG mice lacking NK activity. Although in humans no organ selectivity of gender difference in melanoma progression has been observed according to data in the literature, our results possibly indicate a contribution of natural host defense mechanisms to gender difference in survival of patients with melanoma or other tumor types as well.
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MESH Headings
- Animals
- Apoptosis
- Cell Adhesion
- Cell Proliferation
- Cytotoxicity, Immunologic/immunology
- Female
- Flow Cytometry
- G(M1) Ganglioside/pharmacology
- Gonadal Steroid Hormones/metabolism
- Humans
- Immunoenzyme Techniques
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Killer Cells, Natural/pathology
- Kupffer Cells/drug effects
- Kupffer Cells/immunology
- Kupffer Cells/pathology
- Liver Neoplasms, Experimental/drug therapy
- Liver Neoplasms, Experimental/immunology
- Liver Neoplasms, Experimental/secondary
- Male
- Melanoma/drug therapy
- Melanoma/immunology
- Melanoma/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Inbred NOD
- Mice, SCID
- Receptors, Steroid/metabolism
- Sex Factors
- Tumor Cells, Cultured
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Affiliation(s)
- Judit Dobos
- Department of Surgical and Molecular Pathology, National Institute of Oncology, 7-9. Ráth György u, Budapest 1122, Hungary
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4
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Notas G, Kisseleva T, Brenner D. NK and NKT cells in liver injury and fibrosis. Clin Immunol 2008; 130:16-26. [PMID: 18823822 DOI: 10.1016/j.clim.2008.08.008] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Accepted: 07/04/2008] [Indexed: 12/23/2022]
Abstract
The innate immune mechanisms of the liver represent an important first line of defense against bacterial products, toxins, and food antigens coming from the intestine. Natural Killer (NK) and Natural Killer T cells (NKT) are components of the innate immune system with increased presence in the liver compared to other organs and have been reported to participate in the inflammatory processes during hepatic diseases. However significant confusion has been noted in this field mainly due to changes in the characterization of these cells as new knowledge accumulates and due to differences in the approaches used for their study. Both cell types can mediate hepatic injury in several models but studies in human liver diseases have not managed to fully explain their functions. However accumulating evidence supports an antifibrotic role of NK cells mainly via an inhibitory effect on hepatic stellate cells by inducing apoptosis and via production of interferon-gamma. Therefore, downregulation of NK cells during most types of liver injury may facilitate liver fibrosis. Data about the role of NKT cells in liver fibrosis are limited. This review will summarize the studies about the role of NK and NKT cells in liver diseases with a special interest in hepatic injury and liver fibrosis.
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Affiliation(s)
- George Notas
- Department of Medicine, University of California, San Diego, School of Medicine, 9500 Gilman Drive #0702, La Jolla, CA 92093, USA
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5
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Nickkholgh A, Barro-Bejarano M, Liang R, Zorn M, Mehrabi A, Gebhard MM, Büchler MW, Gutt CN, Schemmer P. Signs of reperfusion injury following CO2 pneumoperitoneum: an in vivo microscopy study. Surg Endosc 2007; 22:122-8. [PMID: 17483991 DOI: 10.1007/s00464-007-9386-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Revised: 01/30/2007] [Accepted: 02/24/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND During laparoscopic surgery, pneumoperitoneum is generally established by means of carbon dioxide (CO(2)) insufflation which may disturb hepatic microperfusion. It has been suggested that the desufflation at the end of the procedure creates a model of reperfusion in a previously ischemic liver, thus predisposing it to reperfusion injury. METHODS To study the effects of pneumoperitoneum on hepatic microcirculation, Sprague-Dawley rats underwent pneumoperitoneum with an intraabdominal pressure of 8 or 12 mmHg for 90 min. Subsequently, in vivo microscopy was performed to assess intrahepatic microcirculation and transaminases were measured to index liver injury. RESULTS A CO(2) pneumoperitoneum of 8 mmHg did not change serum transaminases; however, further increase of intraperitoneal pressure to 12 mmHg significantly increased AST, ALT, and LDH measured after desufflation to almost 1.5 times as much as control values of 49 +/- 5 U/L, 31 +/- 3 U/L, and 114 +/- 12 U/L. In parallel, in all subacinar zones the permanent adherence of both leukocytes and platelets to the endothelium increased by about sixfold and threefold, respectively. Furthermore, Kupffer cells labeled with latex beads as an index for their activation were significantly increased compared to controls. CONCLUSION This in vivo observation demonstrated traces of reperfusion injury in liver induced by the insufflation and desufflation of CO(2 )pneumoperitoneum. The clinical relevance of this finding and the issue of using hepatoprotective substances to prevent this injury should be further investigated.
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Affiliation(s)
- Arash Nickkholgh
- Department of General Surgery, Ruprecht-Karls-University, Heidelberg, Germany
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6
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Timmers M, Vekemans K, Vermijlen D, Asosingh K, Kuppen P, Bouwens L, Wisse E, Braet F. Interactions between rat colon carcinoma cells and Kupffer cells during the onset of hepatic metastasis. Int J Cancer 2004; 112:793-802. [PMID: 15386374 DOI: 10.1002/ijc.20481] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Liver sinusoids harbor populations of 2 important types of immunocompetent cells, Kupffer cells (KCs) and natural killer (NK) cells, which are thought to play an important role in controlling hepatic metastasis in the first 24 hr upon arrival of the tumor cells in the liver. We studied the early interaction of KCs, NK and CC531s colon carcinoma cells in a syngeneic rat model by confocal laser scanning microscopy. Results showed a minority of KCs (19% periportal and 7% pericentral) involved in the interaction with 94% of tumor cells and effecting the phagocytosis of 92% of them. NK cell depletion decreased the phagocytosis of tumor cells by KCs by 33% over a period of 24 hr, leaving 35% of the cancer cells free, as compared to 6% in NK-positive rats. Surviving cancer cells were primarily located close to the Glisson capsule, suggesting that metastasis would initiate from this region.
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Affiliation(s)
- Maarten Timmers
- Laboratory for Cell Biology and Histology, Free University of Brussels, Brussels, Belgium
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7
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Allendorf J, Ippagunta N, Emond J. Management of liver metastases: new horizons for biologically based therapy. J Surg Res 2004; 117:144-53. [PMID: 15013725 DOI: 10.1016/j.jss.2003.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2003] [Indexed: 12/21/2022]
Affiliation(s)
- John Allendorf
- Center for Liver Disease and Transplantation, Department of Surgery, Columbia University College of Physicians and Surgeons, New York, New York 10032 USA.
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8
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Sturm JW, Magdeburg R, Berger K, Petruch B, Samel S, Bönninghoff R, Keese M, Hafner M, Post S. Influence of TNFA on the formation of liver metastases in a syngenic mouse model. Int J Cancer 2003; 107:11-21. [PMID: 12925951 DOI: 10.1002/ijc.11320] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The level of TNFalpha expression is increased after partial hepatectomy, and experimental evidence exists that TNFalpha plays a key role in liver regeneration. Contradictory results are reported about the influence of TNFalpha on tumor growth: on the one hand, stimulation of tumor growth in various animal models and, on the other hand, intraperitoneally administered TNFalpha leads to reduced metastasis formation. TNFalpha may be one responsible factor for increased metastasis formation after surgical trauma. The objective of our study was to clarify the influence of TNFalpha on the formation of liver metastases in a syngenic mouse model in vivo. We used a novel marker system, EGFP transfected C26 tumor cells for in vivo observation of metastasis formation by intravital microscopy. We analyzed the effect of intraperitoneal TNFalpha-injection on tumor cell adhesion, extravasation and tumor development. The expression of ICAM-1, VCAM-1 and E-Selectin was measured by Western blot and immunohistochemical staining. Tumor load was assessed by determining EGFP in Western blots. GdCl(3) was employed 24 and 48 hr before tumor cell injection to selectively deplete the liver of functioning Kupffer cells. We observed significantly more extravasated tumor cells in the TNFalpha-pre-treated animals at early time points with increased expression of adhesion molecules. Measurement of the EGFP levels showed fewer liver metastases in the TNFalpha-pretreated animals at day 8. After GdCl(3) pretreatment even lower levels of EGFP, i.e., fewer metastases and also lower expression levels of ICAM-1, VCAM-1 and E-Selectin could be observed. TNFalpha, acts in a bidirectional manner: whereas TNFalpha facilitates tumor cell adhesion and extravasation of C26 tumor cells by inducing the expression of adhesion molecules, at later time points, TNFalpha seems to hinder the formation of liver metastases.
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Affiliation(s)
- Jörg W Sturm
- Chirurgische Klinik, Universitätsklinikum Mannheim, Mannheim, Germany.
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9
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Lau WY, Chen GG, Lai PB, Chun YS, Leung BC, Chak EC, Lee JF, Chui AK. Induction of Fas and Fas ligand expression on malignant glioma cells by Kupffer cells, a potential pathway of antiliver metastases. J Surg Res 2001; 101:44-51. [PMID: 11676553 DOI: 10.1006/jsre.2001.6253] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Kupffer cells play an important role in controlling the growth and development of liver metastases. However, the pathway of Kupffer cells against tumor metastases is not clear. In the present study, we set up an experimental model to investigate the mechanisms on how Kupffer cells kill tumor cells which metastasize to the liver. Malignant glioma cells were cocultured with Kupffer cells or treated with culture medium collected from lipopolysaccharide (LPS)-activated Kupffer cells. The results showed that the interaction between Kupffer cells and malignant glioma cells significantly stimulated the generation of tumor necrosis factoralpha (TNFalpha). TNFalpha was mainly produced by Kupffer cells, as its level in culture medium obtained from LPS-treated Kupffer cells was not significantly different from that of malignant glioma cells treated with the same medium. Both Kupffer cells and LPS/Kupffer cell-conditioned supernatants induced expression of Fas and Fas ligand on malignant glioma cells. Subsequently a significant proportion of malignant glioma cells became apoptotic, as evidenced by positive staining of annexin V and propidium iodine and an increase in cellular DNA fragmentation. Therefore, this study supports a novel pathway of Kupffer cells against liver metastases, in which tumor cells were apoptotic via the Fas-Fas ligand system induced by TNFalpha released from Kupffer cells.
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Affiliation(s)
- W Y Lau
- Department of Surgery, Prince of Wales Hospital, Shatin, N.T., Hong Kong.
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10
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Adding LC, Bannenberg GL, Gustafsson LE. Basic experimental studies and clinical aspects of gadolinium salts and chelates. CARDIOVASCULAR DRUG REVIEWS 2001; 19:41-56. [PMID: 11314600 DOI: 10.1111/j.1527-3466.2001.tb00182.x] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Gadolinium is a lanthanide that has in recent years become more commonly present in our society. Organic chelates of gadolinium are increasingly used as contrast agents for the imaging of body fluids. Although adverse reactions to these agents are uncommon, it is known that gadolinium salts can bring about a wide variety of changes in physiology. Gadolinium chloride is widely used experimentally as an inhibitor of stretch-activated ion channels and physiological responses of tissues to mechanical stimulation. It is also employed as a selective inhibitor of macrophages in vivo. In this review, the known biochemical actions of gadolinium are brought together with its in vivo pharmacology and toxicology.
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Affiliation(s)
- L C Adding
- Dept. of Physiology and Pharmacology, Karolinska Institute, S-17177 Stockholm, Sweden.
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11
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Volpe CM, Mehta N, Kim U, Hordines J, Doerr RJ, Cohen SA. AsGM1+ NK cells prevent metastasis of invading LD-MCA-38 tumor cells in the nude mouse. J Surg Res 1999; 84:157-61. [PMID: 10357913 DOI: 10.1006/jsre.1999.5631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Although the liver is a potent tumor cell killing organ it is frequently the site of lethal metastases often signifying the endstage for patients with colorectal cancers. Enhancing hepatic-associated immunity remains elusive until the interactions among hepatic nonparenchymal cells (NPC) are deciphered. We sought to modulate the cellular components of the hepatic immune system of mice with anti-NK and anti-T-cell-neutralizing antibodies in order to determine the cell type most efficacious in preventing liver metastasis. MATERIALS AND METHODS Liver-derived murine colon adenocarcinoma (LD-MCA-38) cells were injected into the ileocolic vein (ICV) of immunocompetent and immunodeficient C57BL/6 mice. Mice were pretreated 1 day prior to tumor cell injection with one of three antibodies: anti-AsGM1, Anti-NK1.1, or Anti-Thy1.2. On Day 21 laparotomy was performed to determine the extent of hepatic tumor foci. The number of hepatic tumor foci was recorded and compared by the Wilcoxon rank sum test. RESULTS Mice pretreated with anti-AsGM1 or Anti-NK1.1 developed a massive increase in the number of hepatic tumor foci and decreased survival compared to the control treated mice. Pretreatment with anti-Thy1.2 antibody resulted in a significant decrease in the number of hepatic tumor foci. LD-MCA-38 tumor cells were unable to colonize the liver of C57BL/6 athymic nude mice; however, anti-AsGM1 antibody abolished this antimetastatic effect. There was no difference in the extent of hepatic metastasis and survival between immunodeficient C57BL/6 bg/bg and their conventional littermates bg/+. CONCLUSION AsGM1+ NK cells exhibit a significant antitumor response in the absence of T-cells. The concept of stimulating NK cell activity and suppressing T-cell function may enhance liver-associated immunity and serve as a deterrent for blood-borne tumor cells metastasizing to the liver.
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MESH Headings
- Adenocarcinoma/prevention & control
- Adenocarcinoma/secondary
- Animals
- Antibodies/pharmacology
- Antibodies, Monoclonal/pharmacology
- Antigens/immunology
- Antigens, Ly
- Antigens, Surface
- Colonic Neoplasms/pathology
- G(M1) Ganglioside/immunology
- G(M1) Ganglioside/metabolism
- Immunocompetence/physiology
- Killer Cells, Natural/metabolism
- Killer Cells, Natural/physiology
- Lectins, C-Type
- Liver Neoplasms/prevention & control
- Liver Neoplasms/secondary
- Lymphocyte Count/drug effects
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL/genetics
- Mice, Nude/immunology
- NK Cell Lectin-Like Receptor Subfamily B
- Neoplasm Invasiveness/prevention & control
- Neoplasm Transplantation
- Proteins/immunology
- T-Lymphocytes/pathology
- Thy-1 Antigens/immunology
- Tumor Cells, Cultured
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Affiliation(s)
- C M Volpe
- Department of Surgery, Buffalo VA Medical Center and CGF Health Systems, Buffalo, New York, 14203, USA.
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12
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Rushfeldt C, Sveinbjørnsson B, Seljelid R, Smedsrød B. Early events of hepatic metastasis formation in mice: role of Kupffer and NK-cells in natural and interferon-gamma-stimulated defense. J Surg Res 1999; 82:209-15. [PMID: 10090831 DOI: 10.1006/jsre.1998.5532] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Surgical manipulation of a tumor may result in increased influx of tumor cells into the systemic and portal circulation and give rise to formation of metastases. In addition, major surgery has been reported to cause profound immunosuppression. In an attempt to increase the host-antitumor immune mechanisms following surgery we have studied the effect of preoperative administration of interferon-gamma, related to the antimetastatic effects of Kupffer cells (KC) and natural killer cells (NK-cells) in the early phase of liver metastasis formation. Colon carcinoma cells were injected into the superior mesenteric vein of syngeneic mice and after 17 days metastases were quantified by weight, number, and uptake of [125I]iododeoxyuridine. Unstimulated control mice developed 10.5 surface nodules per liver 17 days following injection of colon carcinoma cells into the superior mesenteric vein of syngeneic mice. This figure was only 2.6 in mice stimulated with a single dose of 1000 IU IFN-gamma 4 h prior to inoculation of tumor cells. Administration of GdCl3, which is reported to deplete and block the function of Kupffer cells, 24 h prior to tumor cell inoculation resulted in a 5-fold tumor mass increase relative to control. Injection of anti-asiolo-GM1 antiserum, which eliminates the hepatic NK-cells, induced a 10-fold increase in tumor mass. These results indicate an important early antimetastatic function of hepatic NK-cells and KC and that presurgical administration of IFN-gamma may be important for eliminating circulating tumor cells and inhibiting development of residual tumors.
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Affiliation(s)
- C Rushfeldt
- Department of Experimental Pathology, Institute of Medical Biology, Tromsø, N-9037, Norway
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13
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Sveinbjørnsson B, Rushfeldt C, Seljelid R, Smedsrød B. Inhibition of establishment and growth of mouse liver metastases after treatment with interferon gamma and beta-1,3-D-glucan. Hepatology 1998; 27:1241-8. [PMID: 9581677 DOI: 10.1002/hep.510270509] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
The purpose of this study was to investigate the combined antitumor effect of aminated beta-1,3-D-glucan (AG) and interferon-gamma (IFN-gamma) in an experimental liver metastasis model. Liver metastases were established by inoculation of C-26 colon carcinoma cells into the superior mesenteric vein of syngeneic mice. Treatment of mice started 24 hours after inoculation of tumor cells by daily intravenous injections of either AG, IFN-gamma, or a combination of both for a duration of 6 days. The resultant liver metastases were then quantified after an additional period of 11 days. Combination of IFN-gamma and AG inhibited the growth of liver metastases almost entirely. IFN-gamma was also very efficient, while AG alone did not exert any significant antitumor effect. These results, along with histological studies from mice receiving AG and IFN-gamma, indicated that activation and recruitment of liver macrophages may be a part of the mechanism responsible for the inhibition of metastatic growth observed in this study.
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Affiliation(s)
- B Sveinbjørnsson
- Department of Experimental Pathology, Institute of Medical Biology, University of Tromsø, Norway
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14
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Okuno K, Hirai N, Lee YS, Kawai I, Shigeoka H, Yasutomi M. Involvement of liver-associated immunity in hepatic metastasis formation. J Surg Res 1998; 75:148-52. [PMID: 9655087 DOI: 10.1006/jsre.1998.5272] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
AIMS Hepatic metastasis formation and prevention were studied from the viewpoint of liver-associated immunity. METHODS RCN-9, a colonic cancer cell line derived from Fischer rats, and its subclone RCN-H4, in which the cancer is highly metastatic to the liver, were used. Fischer rats that were inoculated with parent RCN-9 colonic cancer cells (5 x 10(6)) via the portal vein showed liver metastasis in less than 60% of the animals. In contrast, all rats (100%) that received RCN-H4 produced multiple liver metastases. To investigate the difference of hepatic metastasis formation, we assessed the susceptibility of both cell lines against hepatic sinusoidal lymphocytes (HSL) by 51Cr-release assay, and the expression of MHC class I and class II of both cell lines by flow cytometry. In addition, we examined whether activation of HSL by interleukin-12 (IL-12) can prevent liver metastasis of highly metastatic clone RCN-H4. RESULTS The RCN-H4 clone showed decreased susceptibility to lysis by natural cytotoxic cells in HSL. This decrease in cell susceptibility was attributable to an increase in cell surface expression of MHC class I antigen. Administration of IL-12, a potent NK/CTL stimulatory cytokine, augmented the cytotoxic activity against the RCN-H4 clone and prevented liver metastasis of RCN-H4 inoculated into the portal vein. CONCLUSIONS Liver metastasis formation is positively correlated with the strength of the hepatic immune system which mainly consists of ontogenetically primitive T cells. As these effectors exert their cytotoxicity in a MHC-nonrestricted fashion, tumor cells that highly express MHC class I antigen can readily avoid hepatic surveillance and apt to cause liver metastasis. Augmentation of the hepatic immune system, for instance, with IL-12 administration, can prevent liver metastasis even in tumor cells with a high potential for liver metastasis.
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Affiliation(s)
- K Okuno
- First Department of Surgery, Kinki University School of Medicine, Osaka, Japan.
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15
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Crommelin D, Daemen T, Scherphof G, Vingerhoeds M, Heeremans J, Kluft C, Storm G. Liposomes: vehicles for the targeted and controlled delivery of peptides and proteins. J Control Release 1997. [DOI: 10.1016/s0168-3659(96)01583-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Daemen T, Regts J, Meesters M, Ten Kate MT, Bakker-Woudenberg IA, Scherphof GL. Toxicity of doxorubicin entrapped within long-circulating liposomes. J Control Release 1997. [DOI: 10.1016/s0168-3659(96)01501-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Wasserman AJ, Monticello TM, Feldman RS, Gitlitz PH, Durham SK. Utilization of electron probe microanalysis in gadolinium-treated mice. Toxicol Pathol 1996; 24:588-94. [PMID: 8923680 DOI: 10.1177/019262339602400508] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Gadolinium is used as a contrast media for magnetic resonance imaging and, experimentally, to block Kupffer cell phagocytosis. In this study, we utilize electron probe microanalysis to determine the subcellular localization of gadolinium chloride (GdCl3) administered to mice in a short-term toxicology study. Male CD-1 mice were administered 0.0, 2.5, or 8.0 mg/kg GdCl3 iv for 14 consecutive weekdays. Liver-associated enzymes were significantly elevated in high-dose animals only and correlated histologically with multifocal, hepatocellular degeneration associated with a neutrophilic infiltrate. Morphological investigations were performed on high-dose animals. Hepatocytes and Kupffer cells had morphologic features of cellular injury consisting of swollen mitochondria and vesiculated profiles of endoplasmic reticulum. Hepatocytes, Kupffer cells, bile canaliculi, and neutrophils in the liver contained discrete aggregates of electron-dense granular material, as did pulmonary interstitial macrophages, splenic macrophages, and mesangial cells of the renal glomerulus. The intracellular granular material in the liver, lung, spleen, and kidney was confirmed as gadolinium by qualitative electron probe microanalysis. These results document both hepatic and extra-hepatic accumulation of gadolinium in cells of the mononuclear phagocytic system and highlight the importance of electron probe microanalysis in toxicologic assessment.
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Affiliation(s)
- A J Wasserman
- Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, New Jersey 08543-4000, USA
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18
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Affiliation(s)
- K P de Jong
- Department of Surgery, University Hospital, Groningen, The Netherlands
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19
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Daemen T, Hoedemakers R, Storm G, Scherphof GL. Opportunities in targeted drug delivery to Kupffer cells: delivery of immunomodulators to Kupffer cells-activation of tumoricidal properties. Adv Drug Deliv Rev 1995. [DOI: 10.1016/0169-409x(95)00038-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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20
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de Jong KP, Lont HE, Bijma AM, Brouwers MA, de Vries EG, van Veen ML, Marquet RL, Slooff MJ, Terpstra OT. The effect of partial hepatectomy on tumor growth in rats: in vivo and in vitro studies. Hepatology 1995. [PMID: 7557880 DOI: 10.1002/hep.1840220436] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Residual tumor in the remnant liver after partial hepatectomy (PH) for colorectal liver metastases is a serious clinical problem. This fact is reflected by the high number of recurrences after potentially curative liver resections. Liver regeneration, it appears, might influence the growth of remaining micrometastases in the liver. Using rats, we demonstrated enhancement of growth of a syngeneic colon carcinoma (CC 531) in the remnant liver after 70% PH. Fourteen days after PH, tumor weights in the liver were twice as high as those of sham-operated rats. This difference in tumor weight was not found in extrahepatic tumors. In vitro experiments did not show stimulation of cultured CC 531 cells by portal or systemic serum withdrawn 24 hours or 14 days after hepatectomy as compared with sera obtained after sham operation. Co-cultures of CC 531 cells and hepatocytes (in ratios of 1:10 or 1:1) demonstrated a higher 3H-thymidine incorporation than was the case in separately cultured cells. In co-cultures, bromodeoxyuridine (BrdU) incorporation in DNA was found primarily in CC 531 cells and rarely in hepatocytes. Cell density appeared to be of influence on 3H-thymidine incorporation in co-cultures. Hepatocytes were found to have a stimulating effect on CC 531 cells in low-density cultures, whereas high-density cultures exhibited an inhibiting effect after a culture time of 120 hours. These results show that, depending on cell density in co-cultures, a paracrine stimulating influence of hepatocytes on this type of colon carcinoma cells (CC 531) might be responsible for the increased tumor growth in vivo.
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Affiliation(s)
- K P de Jong
- Laboratory for Experimental Surgery, University Hospital Dijkzigt, Rotterdam, The Netherlands
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21
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Holmberg SB, Naredi PL, Lindnér GO, Karlberg IH, Daneryd PL, Karlsson LM, Pettersson A, Stenram U, Hafström LR. Influence of zymosan (a non-specific macrophage stimulator) and of indomethacin on liver tumours--an experimental study in rats. J Cancer Res Clin Oncol 1995; 121:463-8. [PMID: 7642688 DOI: 10.1007/bf01218362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Zymosan--a non-specific macrophage-stimulating agent--reduces tumour take in the liver. The mechanism for this effect is not clear, but it may be mediated via the Kupffer cells and prostaglandins. On the other hand, the Prostaglandin-synthesis inhibitor, indomethacin, inhibits tumour growth. Pretreatment with zymosan (3 mg 100 g-1) for 3 days of two different strains of rats, inoculated in the liver with a hepatoma or an adenocarcinoma cell suspension respectively, reduced tumour take and also initial tumour growth. The effect on tumour take and initial growth was inhibited by concomitant administration of indomethacin (0.2 mg 100 g-1). When zymosan was administered after tumour cell inoculation the growth rate of the hepatoma was retarded, but this effect was not abrogated by indomethacin. Pretreatment with indomethacin had no significant effect on tumour take or initial growth. When given after the tumour was established in the liver, indomethacin reduced the growth rate of the hepatoma, but not of the adenocarcinoma. These results suggest that there are different mechanisms for the effects of zymosan on tumour take and on growth of an established tumour. In immunoincompetent nude mice the effect on the hepatoma was similar to the effect in the rat. In vitro both tumours were insensitive to zymosan and indomethacin. This study confirms that pretreatment with a non-specific macrophage stimulator (zymosan) diminishes tumour take and growth in the liver, that the effect of zymosan on tumour take in the liver is abrogated by indomethacin and that the zymosan effect on tumour take in the liver is at least partly mediated by the Kupffer cells and prostaglandins.
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Affiliation(s)
- S B Holmberg
- Department of Surgery, Sahlgrenska Hospital, Göteborg, Sweden
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22
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Piscatelli JJ, Cohen SA, Berenson CS, Lance P. Determinants of differential liver-colonizing potential of variants of the MCA-38 murine colon cancer cell line. Clin Exp Metastasis 1995; 13:141-50. [PMID: 7882616 DOI: 10.1007/bf00133619] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We investigated factors that might contribute to the differing liver tumor colonizing potentials of MCA-38 colonic cancer cell line variants injected into the ileocolic veins of C57Bl/6J mice. Non-colonizing (MCA-38 CD) cells were sensitive to lysis by hepatic natural killer (NK) cells in vitro (51Cr-release assay) and cells with high liver-colonizing potential (MCA-38 LD) were resistant. Following abrogation of NK activity by treatment with anti-asialoGM1, liver-colonizing ability to LD cells but not CD cells was enhanced. MCA-38 CD cells were, however, capable of initial liver colonization after ileocolic vein injection. Differing patterns of membrane sialylation may have contributed to the contrasting hepatic tumorigenicities of LD and CD cells; beta-galactoside alpha 2,6-sialyltransferase mRNA levels and activity were approximately four-fold higher in LD than CD cells and qualitative and quantitative differences existed between their ganglioside profiles. In the MCA-38 model outlined, tumor cell susceptibility or resistance to NK lysis was a relatively unimportant determinant of liver-colonizing potential.
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Affiliation(s)
- J J Piscatelli
- Department of Medicine, State University of New York, Buffalo
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23
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Kan Z, Ivancev K, Lunderquist A, McCuskey PA, McCuskey RS, Wallace S. In vivo microscopy of hepatic metastases: dynamic observation of tumor cell invasion and interaction with Kupffer cells. Hepatology 1995. [PMID: 7843723 DOI: 10.1002/hep.1840210233] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In vivo microscopy was used in the study of the biological behavior of tumor cells and of the activity of Kupffer cells in hepatic tumors in situ. Three tumor models, Friend erythroleukemia inoculated into Dilute Brown Aguti (DBA)/2 mice, murine colon adenocarcinoma (CT)-26 in Bagg Albino inbred albino (BALB)/c mice, and mammary cancer 13762 NF in Fischer rats, were investigated. Tumor cells showed a strong tendency to adhere to the sinusoidal endothelium, most frequently in the sinusoids near the tumors. Mechanical trapping of tumor cells in the narrow portion of hepatic sinusoids, a phenomenon suggested by previous investigators as a predominant pattern for tumor cells to arrest in the liver, was not confirmed. Our study documented that in tumor-bearing livers, as compared with normal control livers, the population size and the phagocytic capacity of Kupffer cells are increased in nontumorous areas but are significantly decreased inside the tumors. In vivo microscopic images showed that Kupffer cells are not only attracted to tumor cells in the hepatic circulation but also have the ability to phagocytose those tumor cells. In vivo microscopy has been shown to be a useful tool for dynamic studies in tumor biology, pathology, and pharmacology.
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Affiliation(s)
- Z Kan
- Department of Diagnostic Radiology, University of Texas, M. D. Anderson Cancer Center, Houston 77030
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24
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McCuskey PA, Kan Z, Wallace S. An electron microscopy study of Kupffer cells in livers of mice having Friend erythroleukemia hepatic metastases. Clin Exp Metastasis 1994; 12:416-26. [PMID: 7923994 DOI: 10.1007/bf01755885] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Kupffer cells, which are part of the reticuloendothelial system, play an important role in clearing pathogenic substances, including tumor cells, from the liver. The role of Kupffer cells in tumor development is very important as Kupffer cells can be manipulated to a tumoricidal state with biological response modifiers to kill tumor cells and thus to decrease tumor burden and extend survival time. To gain additional information on the role of Kupffer cells and their interaction with tumor cells in hepatic metastases, we studied an established experimental hematogenous metastatic model (Friend erythroleukemia) in mouse livers by light and electron microscopy. Highly activated Kupffer cells were observed in close contact with tumor cells in sinusoids and also in tumor forming foci within the hepatic parenchyma. The Kupffer cells were activated by the presence of the hematogenous tumor cells and were able to lyse and phagocytose them. However, some tumor cells evaded the Kupffer cells as metastases still occurred. Kupffer cells and other macrophages were found to leave the sinusoids and migrate to sites of potential tumor development where they interacted with tumor cells and intimately wrapped their processes around fat storing cells. It is possible that these macrophages which cross biological barriers could be used to deliver drug-loaded microparticles (liposomes and microcapsules) to tumors.
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Affiliation(s)
- P A McCuskey
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston 77030
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