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Guan JJ, England RW, Hegde S, Pang S, Solomon AJ, Hong KK, Singh H. Clinical Outcomes of Percutaneous Biliary Endoscopy: A 7-Year Single-Institution Experience. J Vasc Interv Radiol 2022; 34:660-668. [PMID: 36543319 DOI: 10.1016/j.jvir.2022.12.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 12/07/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022] Open
Abstract
PURPOSE To evaluate safety and effectiveness of percutaneous biliary endoscopy (PBE) performed on patients ineligible for surgery or endoscopic retrograde cholangiopancreatography. MATERIALS AND METHODS Retrospective review was conducted for all patients who underwent PBE at a single academic institution between June 2013 and February 2020; 39 patients underwent 58 choledochoscopy sessions, and 21 patients underwent 48 cholecystoscopy sessions. Choledochoscopy indications included stone removal (23 of 39 patients) or biliary stenosis evaluation (19 of 39 patients). Cholecystoscopy indications included calculous cholecystitis (18 of 21 patients) and symptomatic cholelithiasis (3 of 21 patients). Technical success, procedural and fluoroscopy times, and tube-free survival were assessed. RESULTS For all PBEs performed for stone clearance, using disposable endoscopes led to shorter mean ± SD procedural (128.7 minutes ± 56.2 vs 240.2 minutes ± 184.6; P < .01) and fluoroscopy times (10.7 minutes ± 7.9 vs 16.5 minutes ± 12.0; P = .01) than using reusable endoscopes. Increasing institutional experience was associated with reduced procedural time (β = -56.73; P < .001). Choledochoscopy technical success was 94.8% with 1 adverse event of bile duct perforation with bile leak requiring drainage. For patients with choledocholithiasis, biliary drains were removed in 14 (60.9%) patients, with a mean tube-free survival of 22.1 months ± 23.8. For cholecystoscopy, technical success was 93.8% with no adverse events. Cholecystostomy tubes were removed in 15 (71.4%) patients, with a mean tube-free survival of 7.5 months ± 8.8. CONCLUSIONS This study supports PBE as a safe and feasible option for nonsurgical patients or those with altered anatomy precluding endoscopic retrograde cholangiopancreatography. Moreover, PBE may result in tube-free survival.
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Affiliation(s)
- Justin J Guan
- Division of Interventional Radiology, Department of Radiology, Cleveland Clinic, Cleveland, Ohio.
| | - Ryan W England
- Division of Interventional Radiology, Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Siddhi Hegde
- Division of Interventional Radiology, Department of Radiology, Cleveland Clinic, Cleveland, Ohio
| | - Sharon Pang
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Alex J Solomon
- Division of Interventional Radiology, Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Kelvin K Hong
- Division of Interventional Radiology, Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Harjit Singh
- Division of Interventional Radiology, Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland
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Nezami N, Georgiades C, Hong KK, Buethe J. Bronchial Artery Chemoembolization With Radiopaque Doxorubicin Eluding Beads in Patients With Malignant Hemoptysis from Metastatic Lung Cancer. Technol Cancer Res Treat 2022; 21:15330338221131167. [PMID: 36226988 PMCID: PMC9577079 DOI: 10.1177/15330338221131167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Purpose:This pilot study was designed to assess the technical feasibility and safety of bronchial artery chemoembolization with radiopaque doxorubicin eluting beads (DEB-BACE) in patients with malignant hemoptysis from pulmonary metastasis. Materials & Methods: Four patients underwent DEB-BACE using 70-150 μm radiopaque DEB (LC Beads LUMI, Boston Scientific). Beads delivery and deposition were assessed under fluoroscopy and cone beam computed tomography (CT), respectively. Results: All 4 procedures were technically successful. Beads delivery and deposition were successfully visualized under fluoroscopy and cone beam CT guidance in all cases. Hemoptysis was resolved after embolization in all 4 patients. There were no adverse events or immediate or early complications after DEB-BACE. Two patients (50%) required repeat DEB-BACE within 1 week due to recurrent hemoptysis, and 1 patient had DEB-BACE 1.5 years later due to recurrent hemoptysis from the contralateral lung. All targeted lesions decreased in size in follow-up studies (mean 16 months, range 1-33 months). One patient died of progressive cancer disease invading the heart 1 month after DEB-BACE. Conclusions: DEB-BACE using radiopaque LC Beads LUMI loaded with doxorubicin is technically feasible and safe for controlling hemoptysis and cancer progression in patients with metastatic lung tumors. Visualization of beads delivery under fluoroscopy and deposition of beads under cone beam CT facilitate delivery of beads and embolization of bronchial arteries.
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Affiliation(s)
- Nariman Nezami
- Division of Vascular and Interventional Radiology, Department of
Diagnostic Radiology and Nuclear Medicine, University of Maryland School of
Medicine, Baltimore, MD, USA,Experimental Therapeutics Program, University of Maryland Marlene
and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA,Ji Buethe, MD, Division of Vascular and
Interventional Radiology, Department of Radiology and Radiological Sciences,
Johns Hopkins Hospital, 1800 Orleans, Suite 7203, Baltimore, MD 21287, USA.
| | - Christos Georgiades
- Division of Vascular and Interventional Radiology, Department of
Radiology and Radiological Sciences, the Johns Hopkins Hospital, Baltimore, MD,
USA
| | - Kelvin K. Hong
- Division of Vascular and Interventional Radiology, Department of
Radiology and Radiological Sciences, the Johns Hopkins Hospital, Baltimore, MD,
USA
| | - Ji Buethe
- Division of Vascular and Interventional Radiology, Department of
Radiology and Radiological Sciences, the Johns Hopkins Hospital, Baltimore, MD,
USA
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Adam LC, Savic LJ, Chapiro J, Letzen B, Lin M, Georgiades C, Hong KK, Nezami N. Response assessment methods for patients with hepatic metastasis from rare tumor primaries undergoing transarterial chemoembolization. Clin Imaging 2022; 89:112-119. [PMID: 35777239 PMCID: PMC9470015 DOI: 10.1016/j.clinimag.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 06/17/2022] [Accepted: 06/19/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE This study assessed the response to conventional transarterial chemoembolization (cTACE) in patients with liver metastases from rare tumor primaries using one-dimensional (1D) and three-dimensional (3D) quantitative response assessment methods, and investigate the relationship of lipiodol deposition in predicting response. MATERIALS AND METHODS This retrospective bicentric study included 16 patients with hepatic metastases from rare tumors treated with cTACE between 2002 and 2017. Multi-phasic MR imaging obtained before and after cTACE was used for assessment of response. Response evaluation criteria in solid tumors (RECIST) and modified-RECIST (mRECIST) were utilized for 1D response assessment, and volumetric RECIST (vRECIST) and enhancement-based quantitative European Association for Study of the Liver EASL (qEASL) were used for 3D response assessment. The same day post-cTACE CT scan was analyzed to quantify intratumoral lipiodol deposition (%). RESULTS The mean and standard deviation (SD) of diameter of treated lesions per targeted area was 7.5 ± 5.4 cm, and the mean and SD of number of metastases in each targeted area was 4.2 ± 4.6. cTACE was technically successful in all patients, without major complications. While RECIST and vRECIST methods did not allocate patients with partial response, mRECIST and qEASL identified patients with partial response. Intratumoral lipiodol deposition significantly predicted treatment response according qEASL (R2 = 0.470, p < 0.01), while no association was shown between lipiodol deposition within treated tumor area and RECIST or mRECIST (p > 0.212). CONCLUSION 3D quantitative volumetric response analysis can be used for stratification of response to cTACE in patients with hepatic metastases originating from rare primary tumors. Lipiodol deposition could potentially be used as an early surrogate to predict response to cTACE.
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Affiliation(s)
- Lucas C Adam
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA; Institute of Radiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität, and Berlin Institute of Health, 10117 Berlin, Germany
| | - Lynn J Savic
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA; Institute of Radiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität, and Berlin Institute of Health, 10117 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité (Junior) (Digital) Clinician Scientist Program, Charitéplatz 1, 10117 Berlin, Germany
| | - Julius Chapiro
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA
| | - Brian Letzen
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA
| | - MingDe Lin
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA; Visage Imaging, Inc., San Diego, CA, USA
| | - Christos Georgiades
- Division of Vascular and Interventional Radiology, Russel H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kelvin K Hong
- Division of Vascular and Interventional Radiology, Russel H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nariman Nezami
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT, USA; Division of Vascular and Interventional Radiology, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA; Experimental Therapeutics Program, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA.
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Zhao Y, Haroun RR, Sahu S, Schernthaner RE, Smolka S, Lin MD, Hong KK, Georgiades C, Duran R. Three-Dimensional Quantitative Tumor Response and Survival Analysis of Hepatocellular Carcinoma Patients Who Failed Initial Transarterial Chemoembolization: Repeat or Switch Treatment? Cancers (Basel) 2022; 14:cancers14153615. [PMID: 35892874 PMCID: PMC9329887 DOI: 10.3390/cancers14153615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/18/2022] [Accepted: 07/22/2022] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVES The purpose of this study was to assess treatment responses and evaluate survival outcomes between responders and non-responders after each transarterial chemoembolization (TACE) session using the 3D quantitative criteria of the European Association for the Study of the Liver (qEASL) in hepatocellular carcinoma (HCC) patients. METHODS A total of 94 consecutive patients who underwent MR imaging before and after TACE were retrospectively included. Volumetric tumor enhancement (qEASL) was expressed in cubic centimeters (cm3). The Kaplan-Meier method with the log-rank test was used to calculate the overall survival (OS) for the non-/responders. RESULTS In total, 28 (29.8%) patients showed a response after the first TACE. These responders demonstrated a clear trend toward longer OS compared with the non-responders (36.7 vs. 21.5 months, p = 0.071). Of the 43 initial non-responders who underwent a second TACE within 3 months and had complete follow-up imaging, 15/43 (34.9%) achieved a response, and their median OS was significantly longer than that of the 28 non-responders to the second TACE (47.8 vs. 13.6 months, p = 0.01). Furthermore, there was no significant difference in OS between the 28 patients who achieved a response after the first TACE and the 15 initial non-responders who achieved a response after the second TACE (36.7 vs. 47.8 months, p = 0.701). The difference in OS between the responders and non-responders after the third TACE was not significant (11.4 months vs. 13.5 months, p = 0.986). CONCLUSION Our study quantitatively demonstrated that a second TACE can be beneficial in terms of tumor response and survival for HCC patients who do not initially respond to TACE.
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Affiliation(s)
- Yan Zhao
- Department of Gastroenterology, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China;
- Russell H. Morgan Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins Hospital, Sheikh Zayed Tower, Ste 7203, 1800 Orleans St, Baltimore, MD 21287, USA; (R.R.H.); (S.S.); (R.E.S.); (K.K.H.); (C.G.)
| | - Reham R. Haroun
- Russell H. Morgan Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins Hospital, Sheikh Zayed Tower, Ste 7203, 1800 Orleans St, Baltimore, MD 21287, USA; (R.R.H.); (S.S.); (R.E.S.); (K.K.H.); (C.G.)
- Department of Radiology, University of Michigan, 1500 E Medical Center Dr, Ann Arbor, MI 48109, USA
| | - Sonia Sahu
- Russell H. Morgan Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins Hospital, Sheikh Zayed Tower, Ste 7203, 1800 Orleans St, Baltimore, MD 21287, USA; (R.R.H.); (S.S.); (R.E.S.); (K.K.H.); (C.G.)
| | - Ruediger E. Schernthaner
- Russell H. Morgan Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins Hospital, Sheikh Zayed Tower, Ste 7203, 1800 Orleans St, Baltimore, MD 21287, USA; (R.R.H.); (S.S.); (R.E.S.); (K.K.H.); (C.G.)
| | - Susanne Smolka
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, 330 Cedar Street, TE 2-230, New Haven, CT 06520, USA; (S.S.); (M.-D.L.)
| | - Ming-De Lin
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, 330 Cedar Street, TE 2-230, New Haven, CT 06520, USA; (S.S.); (M.-D.L.)
| | - Kelvin K. Hong
- Russell H. Morgan Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins Hospital, Sheikh Zayed Tower, Ste 7203, 1800 Orleans St, Baltimore, MD 21287, USA; (R.R.H.); (S.S.); (R.E.S.); (K.K.H.); (C.G.)
| | - Christos Georgiades
- Russell H. Morgan Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins Hospital, Sheikh Zayed Tower, Ste 7203, 1800 Orleans St, Baltimore, MD 21287, USA; (R.R.H.); (S.S.); (R.E.S.); (K.K.H.); (C.G.)
| | - Rafael Duran
- Russell H. Morgan Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins Hospital, Sheikh Zayed Tower, Ste 7203, 1800 Orleans St, Baltimore, MD 21287, USA; (R.R.H.); (S.S.); (R.E.S.); (K.K.H.); (C.G.)
- Department of Radiology and Interventional Radiology, Lausanne University Hospital, University of Lausanne, Rue du Bugnon 46, CH-1011 Lausanne, Switzerland
- Correspondence: ; Tel.: +41-(21)-3144444; Fax: +41-(21)-3144443
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Fan KY, Wild AT, Halappa VG, Kumar R, Ellsworth S, Ziegler M, Garg T, Rosati LM, Su Z, Hacker-Prietz A, Pawlik TM, Cosgrove DP, Hong KK, Kamel IR, Geschwind JF, Herman JM. Neuroendocrine tumor liver metastases treated with yttrium-90 radioembolization. Contemp Clin Trials 2016; 50:143-9. [PMID: 27520932 DOI: 10.1016/j.cct.2016.08.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 07/21/2016] [Accepted: 08/08/2016] [Indexed: 01/30/2023]
Abstract
OBJECTIVE Yttrium-90 (Y-90) radioembolization is an emerging treatment option for unresectable neuroendocrine liver metastases (NELM). However, the data regarding this treatment are currently limited. This study evaluates the efficacy and tolerability of Y-90 radioembolization and identifies prognostic factors for radiographic response and survival. METHODS AND MATERIALS Thirty-eight patients underwent Y-90 radioembolization for NELM at our institution between April 2004 and February 2012. Patients were assessed radiographically (RECIST criteria, enhancement), serologically, and clinically at 1month, and then at every 3months after treatment for tumor response, toxicity, and survival outcomes. RESULTS Median length of follow-up was 17.0months (IQR, 9.0-37.0). Median survival was 29.2months. Three patients (9%) had a radiographic complete response to treatment, 6 (17%) had a partial response, 21 (60%) had stable disease, and 5 (14%) developed progressive disease. Two factors were significantly associated with a good radiographic response (complete/partial response): islet cell histological subtype (p=0.043) and hepatic tumor burden ≥33% (p=0.031). Multivariate analysis revealed that patients requiring multiple Y-90 treatments (HR 2.9, p=0.035) and patients who had previously failed systemic therapy with octreotide/chemotherapy (HR 4.4, p=0.012) had worse survival. Grade 3 serologic toxicity was observed in 2 patients (5%; hyperbilirubinemia, elevated alkaline phosphatase) after treatment. Grade 3 non-serologic toxicities included abdominal pain (11%), fatigue (11%), nausea/vomiting (5%), ascites (5%), dyspnea (3%), diarrhea (3%), and peripheral edema (3%). No grade 4 or 5 toxicity was reported. CONCLUSIONS Y-90 radioembolization is a promising treatment option for inoperable NELM and is associated with low rates of grade≥3 toxicity.
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Affiliation(s)
- Katherine Y Fan
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Aaron T Wild
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Vivek G Halappa
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rachit Kumar
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Susannah Ellsworth
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mark Ziegler
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tanu Garg
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lauren M Rosati
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Zheng Su
- Department of Statistics, Deerfield Institute, New York, NY, USA; Department of Statistics, Stanford University, Palo Alto, CA, USA
| | - Amy Hacker-Prietz
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Timothy M Pawlik
- Surgery, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David P Cosgrove
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kelvin K Hong
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ihab R Kamel
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jean-Francois Geschwind
- Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Joseph M Herman
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Mandrella B, Hong KK, Vuthy C, Lao Hy T, Abdurahman M, Abebaw TH. [Ilisarov callus distraction and callus compression in treatment of defect gunshot fractures, pseudarthroses and post-traumatic deformities in developing countries. A report of experiences in Cambodian and Ethiopian provincial hospitals]. Unfallchirurg 1995; 98:344-9. [PMID: 7644921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Between March 1989 and May 1993, a total of 22 patients were treated by Ilisarov's method of callus distraction and compression in provincial hospitals in Cambodia and Ethiopia. In both countries were times of civil war and unrest. The indications were high-velocity gunshot and explosive injuries with defect fractures (9 patients), infected and non-infected non-unions after gunshot injuries (6 patients) and civil accidents (3 patients), and deformities after civil accidents and gunshot injuries (4 patients). The deformities were leg shortening by between 5 and 7 cm and in 1 case ankylosis of the knee joint in 110 degrees flexion. A simple unilateral or V-shaped external fixator with devices for distraction and compression was applied. The results in 19 patients are known, while 3 patients have been lost to follow-up since discharge. In 1 case of an infected defect fracture (12 cm) fo the femur amputation was necessary because of sepsis. In all 6 other cases the bone defects were bridged by means of segmental transport, distraction and compression; in all 3 cases of shortening it was possible to restore the original length; similarly, in the case of knee joint ankylosis flexion of 10 degrees was achieved. All 5 infected non-unions healed well after sequesterectomy and segmental bone transport with distraction and compression, and the same holds for the 3 non-infected non-unions. However, in 7 cases a minor spongiosa bone graft was needed to consolidate the ossification at the contact point after distraction and/or compression.(ABSTRACT TRUNCATED AT 250 WORDS)
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Anderson SK, Hong KK, Hoskin DW, Abramow-Newerly W, Fulop GM, Phillips RA, Hozumi N, Roder JC. Murine lymphocytes with natural killer activity express CTL-derived serine protease genes. Immunology 1989; 67:269-73. [PMID: 2787782 PMCID: PMC1385269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Serine protease genes (C11, B10 and HF) derived from activated cytolytic T lymphocytes have been shown to be important in CTL-mediated cytotoxicity. In this study, we examined the expression of these genes in fresh natural killer (NK) cells from severe combined immunodeficiency (SCID) and athymic nude mice, as well as in T-cell lines with NK activity. All of these serine protease genes were expressed in NK cells freshly isolated from SCID and athymic nude mice. In addition, all lines showed similar strong levels of expression of C11 and B10 genes, but not the HF gene. However, levels of expression in the T-cell lines did not correlate with levels of NK-like cytotoxicity. These results suggest that C11, B10 and HF serine protease genes are necessary but not sufficient for NK-like cytotoxicity.
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Affiliation(s)
- S K Anderson
- Department of Medical Genetics, University of Toronto, Ontario, Canada
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