|
|
||||||||

*
Division of Biochemistry and Molecular Biology, The John Curtin School of Medical Research, Australian National University, Canberra, Australia; and
Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom
In this investigation, we have examined the integrated relationship between IL-13, IL-4, and IL-5 for the development of airways hyperreactivity (AHR) in a model of asthma in BALB/c mice. Sensitization and aeroallergen challenge of both wild-type (WT) and IL-13 gene-targeted (IL-13-/-) mice induced allergic disease that was characterized by pulmonary eosinophilia and AHR to ß-methacholine. Although these responses in IL-13-/- mice were heightened compared with WT, they could be reduced to the level in nonallergic mice by the concomitant neutralization of IL-4. Mice in which both IL-4 and IL-13 were depleted displayed a marked reduction in tissue eosinophils, despite the development of a blood eosinophilia. Similar neutralization of IL-4 in WT mice only partially reduced AHR with no effect on tissue eosinophilia. In addition, neutralization of IL-5 in IL-13-/- mice, but not in WT mice, inhibited AHR, suggesting that tissue eosinophilia is linked to the mechanism underlying AHR only in the absence of IL-13. Additionally, mucus hypersecretion was attenuated in IL-13-/- mice, despite the persistence of AHR. Taken together, our data suggest both a modulatory role for IL-13 during sensitization and a proinflammatory role during aeroallergen challenge. The latter process appears redundant with respect to IL-4.
This article has been cited by other articles:
![]() |
Y. Cai, R. K. Kumar, J. Zhou, P. S. Foster, and D. C. Webb Ym1/2 Promotes Th2 Cytokine Expression by Inhibiting 12/15(S)-Lipoxygenase: Identification of a Novel Pathway for Regulating Allergic Inflammation J. Immunol., May 1, 2009; 182(9): 5393 - 5399. [Abstract] [Full Text] [PDF] |
||||
![]() |
I. S. Junttila, K. Mizukami, H. Dickensheets, M. Meier-Schellersheim, H. Yamane, R. P. Donnelly, and W. E. Paul Tuning sensitivity to IL-4 and IL-13: differential expression of IL-4R{alpha}, IL-13R{alpha}1, and {gamma}c regulates relative cytokine sensitivity J. Exp. Med., October 27, 2008; 205(11): 2595 - 2608. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. R. Walsh, N. Sahu, J. Kearley, E. Benjamin, B. H. Kang, A. Humbles, and A. August Strain-specific requirement for eosinophils in the recruitment of T cells to the lung during the development of allergic asthma J. Exp. Med., June 9, 2008; 205(6): 1285 - 1292. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Ohta, M. Hayashi, T. Kanemaru, K. Abe, Y. Ito, and M. Oike Dual Modulation of Airway Smooth Muscle Contraction by Th2 Cytokines via Matrix Metalloproteinase-1 Production J. Immunol., March 15, 2008; 180(6): 4191 - 4199. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. M. Akk, P. M. Simmons, H. W. Chan, E. Agapov, M. J. Holtzman, M. H. Grayson, and C. T. N. Pham Dipeptidyl Peptidase I-Dependent Neutrophil Recruitment Modulates the Inflammatory Response to Sendai Virus Infection J. Immunol., March 1, 2008; 180(5): 3535 - 3542. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y.-C. Su, M. S. Rolph, N. G. Hansbro, C. R. Mackay, and W. A. Sewell Granulocyte-Macrophage Colony-Stimulating Factor Is Required for Bronchial Eosinophilia in a Murine Model of Allergic Airway Inflammation J. Immunol., February 15, 2008; 180(4): 2600 - 2607. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. G. P. Guedes, J. A. Jude, J. Paulin, H. Kita, F. E. Lund, and M. S. Kannan Role of CD38 in TNF-{alpha}-induced airway hyperresponsiveness Am J Physiol Lung Cell Mol Physiol, February 1, 2008; 294(2): L290 - L299. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. L. Asquith, H. S. Ramshaw, P. M. Hansbro, K. W. Beagley, A. F. Lopez, and P. S. Foster The IL-3/IL-5/GM-CSF Common Receptor Plays a Pivotal Role in the Regulation of Th2 Immunity and Allergic Airway Inflammation J. Immunol., January 15, 2008; 180(2): 1199 - 1206. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. Zheng, W. Liu, S.-Y. Oh, Z. Zhu, B. Hu, R. J. Homer, L. Cohn, M. J. Grusby, and J. A. Elias IL-13 Receptor {alpha}2 Selectively Inhibits IL-13-Induced Responses in the Murine Lung J. Immunol., January 1, 2008; 180(1): 522 - 529. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. P. Vieira, R. C. Claudino, A. C. S. Duarte, A. B. G. Santos, A. Perini, H. C. C. Faria Neto, T. Mauad, M. A. Martins, M. Dolhnikoff, and C. R. F. Carvalho Aerobic Exercise Decreases Chronic Allergic Lung Inflammation and Airway Remodeling in Mice Am. J. Respir. Crit. Care Med., November 1, 2007; 176(9): 871 - 877. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Mishra, M. Wang, J. Schlotman, N. M. Nikolaidis, C. W. DeBrosse, M. L. Karow, and M. E. Rothenberg Resistin-like molecule-beta is an allergen-induced cytokine with inflammatory and remodeling activity in the murine lung Am J Physiol Lung Cell Mol Physiol, August 1, 2007; 293(2): L305 - L313. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Zhao, D. He, J. Zhao, L. Wang, A. R. Leff, E. Wm. Spannhake, S. Georas, and V. Natarajan Lysophosphatidic Acid Induces Interleukin-13 (IL-13) Receptor {alpha}2 Expression and Inhibits IL-13 Signaling in Primary Human Bronchial Epithelial Cells J. Biol. Chem., April 6, 2007; 282(14): 10172 - 10179. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. C. Webb, Y. Cai, K. I. Matthaei, and P. S. Foster Comparative Roles of IL-4, IL-13, and IL-4R{alpha} in Dendritic Cell Maturation and CD4+ Th2 Cell Function J. Immunol., January 1, 2007; 178(1): 219 - 227. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. Tabata, W. Chen, M. R. Warrier, A. M. Gibson, M. O. Daines, and G. K. K. Hershey Allergy-Driven Alternative Splicing of IL-13 Receptor {alpha}2 Yields Distinct Membrane and Soluble Forms J. Immunol., December 1, 2006; 177(11): 7905 - 7912. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Yang, D. Rangasamy, K. I. Matthaei, A. J. Frew, N. Zimmmermann, S. Mahalingam, D. C. Webb, D. J. Tremethick, P. J. Thompson, S. P. Hogan, et al. Inhibition of Arginase I Activity by RNA Interference Attenuates IL-13-Induced Airways Hyperresponsiveness J. Immunol., October 15, 2006; 177(8): 5595 - 5603. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. M. Gwinn, J. M. Damsker, R. Falahati, I. Okwumabua, A. Kelly-Welch, A. D. Keegan, C. Vanpouille, J. J. Lee, L. A. Dent, D. Leitenberg, et al. Novel Approach to Inhibit Asthma-Mediated Lung Inflammation Using Anti-CD147 Intervention J. Immunol., October 1, 2006; 177(7): 4870 - 4879. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Nagatani, M. Dohi, Y. To, R. Tanaka, K. Okunishi, K. Nakagome, K. Sagawa, Y. Tanno, Y. Komagata, and K. Yamamoto Splenic Dendritic Cells Induced by Oral Antigen Administration Are Important for the Transfer of Oral Tolerance in an Experimental Model of Asthma J. Immunol., February 1, 2006; 176(3): 1481 - 1489. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. R. McDermott, N. E. Humphreys, S. P. Forman, D. D. Donaldson, and R. K. Grencis Intraepithelial NK Cell-Derived IL-13 Induces Intestinal Pathology Associated with Nematode Infection J. Immunol., September 1, 2005; 175(5): 3207 - 3213. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. O. Abonyo, M. S. Alexander, and A. S. Heiman Autoregulation of CCL26 synthesis and secretion in A549 cells: a possible mechanism by which alveolar epithelial cells modulate airway inflammation Am J Physiol Lung Cell Mol Physiol, September 1, 2005; 289(3): L478 - L488. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. Zimmermann, M. P. Doepker, D. P. Witte, K. F. Stringer, P. C. Fulkerson, S. M. Pope, E. B. Brandt, A. Mishra, N. E. King, N. M. Nikolaidis, et al. Expression and Regulation of Small Proline-Rich Protein 2 in Allergic Inflammation Am. J. Respir. Cell Mol. Biol., May 1, 2005; 32(5): 428 - 435. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. M. Matheson, V. J. Johnson, and M. I. Luster Immune Mediators in a Murine Model for Occupational Asthma: Studies with Toluene Diisocyanate Toxicol. Sci., March 1, 2005; 84(1): 99 - 109. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Leigh, D. S. Southam, R. Ellis, J. N. Wattie, R. Sehmi, Y. Wan, and M. D. Inman T-cell-mediated inflammation does not contribute to the maintenance of airway dysfunction in mice J Appl Physiol, December 1, 2004; 97(6): 2258 - 2265. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. K. Kumar, C. Herbert, D. C. Webb, L. Li, and P. S. Foster Effects of Anticytokine Therapy in a Mouse Model of Chronic Asthma Am. J. Respir. Crit. Care Med., November 15, 2004; 170(10): 1043 - 1048. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Wittke, V. Weaver, B. D. Mahon, A. August, and M. T. Cantorna Vitamin D Receptor-Deficient Mice Fail to Develop Experimental Allergic Asthma J. Immunol., September 1, 2004; 173(5): 3432 - 3436. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Clark, L. Simson, N. Newcombe, A. M. L. Koskinen, J. Mattes, N. A. Lee, J. J. Lee, L. A. Dent, K. I. Matthaei, and P. S. Foster Eosinophil degranulation in the allergic lung of mice primarily occurs in the airway lumen J. Leukoc. Biol., June 1, 2004; 75(6): 1001 - 1009. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Ishii, T. Nagase, H. Shindou, H. Takizawa, Y. Ouchi, and T. Shimizu Platelet-Activating Factor Receptor Develops Airway Hyperresponsiveness Independently of Airway Inflammation in a Murine Asthma Model J. Immunol., June 1, 2004; 172(11): 7095 - 7102. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Leigh, R. Ellis, J. N. Wattie, J. A. Hirota, K. I. Matthaei, P. S. Foster, P. M. O'Byrne, and M. D. Inman Type 2 Cytokines in the Pathogenesis of Sustained Airway Dysfunction and Airway Remodeling in Mice Am. J. Respir. Crit. Care Med., April 1, 2004; 169(7): 860 - 867. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Castro, S. R. Bloch, M. V. Jenkerson, S. DeMartino, D. L. Hamilos, R. B. Cochran, X. E. L. Zhang, H. Wang, J. P. Bradley, K. B. Schechtman, et al. Asthma Exacerbations after Glucocorticoid Withdrawal Reflects T Cell Recruitment to the Airway Am. J. Respir. Crit. Care Med., April 1, 2004; 169(7): 842 - 849. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. Zimmermann, A. Mishra, N. E. King, P. C. Fulkerson, M. P. Doepker, N. M. Nikolaidis, L. E. Kindinger, E. A. Moulton, B. J. Aronow, and M. E. Rothenberg Transcript Signatures in Experimental Asthma: Identification of STAT6-Dependent and -Independent Pathways J. Immunol., February 1, 2004; 172(3): 1815 - 1824. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. C. Webb, K. I. Matthaei, Y. Cai, A. N. J. McKenzie, and P. S. Foster Polymorphisms in IL-4R{alpha} Correlate with Airways Hyperreactivity, Eosinophilia, and Ym Protein Expression in Allergic IL-13-/- Mice J. Immunol., January 15, 2004; 172(2): 1092 - 1098. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. Smart, P. S. Foster, M. E. Rothenberg, T. J. V. Higgins, and S. P. Hogan A Plant-Based Allergy Vaccine Suppresses Experimental Asthma Via an IFN-{gamma} and CD4+CD45RBlow T Cell-Dependent Mechanism J. Immunol., August 15, 2003; 171(4): 2116 - 2126. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. L. Hardy, L. Kenins, A. C. Drew, J. M. Rolland, and R. E. O'Hehir Characterization of a Mouse Model of Allergy to a Major Occupational Latex Glove Allergen Hev b 5 Am. J. Respir. Crit. Care Med., May 15, 2003; 167(10): 1393 - 1399. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. H. Shen, S. I. Ochkur, M. P. McGarry, J. R. Crosby, E. M. Hines, M. T. Borchers, H. Wang, T. L. Biechelle, K. R. O'Neill, T. L. Ansay, et al. A Causative Relationship Exists Between Eosinophils and the Development of Allergic Pulmonary Pathologies in the Mouse J. Immunol., March 15, 2003; 170(6): 3296 - 3305. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Perez-Vilar, J. K. Sheehan, and S. H. Randell Making More MUCS Am. J. Respir. Cell Mol. Biol., March 1, 2003; 28(3): 267 - 270. [Full Text] [PDF] |
||||
![]() |
J. P. Justice, M. T. Borchers, J. R. Crosby, E. M. Hines, H. H. Shen, S. I. Ochkur, M. P. McGarry, N. A. Lee, and J. J. Lee Ablation of eosinophils leads to a reduction of allergen-induced pulmonary pathology Am J Physiol Lung Cell Mol Physiol, January 1, 2003; 284(1): L169 - L178. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Leigh, R. Ellis, J. Wattie, D. S. Southam, M. de Hoogh, J. Gauldie, P. M. O'Byrne, and M. D. Inman Dysfunction and Remodeling of the Mouse Airway Persist after Resolution of Acute Allergen-Induced Airway Inflammation Am. J. Respir. Cell Mol. Biol., November 1, 2002; 27(5): 526 - 535. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Whittaker, N. Niu, U.-A. Temann, A. Stoddard, R. A. Flavell, A. Ray, R. J. Homer, and L. Cohn Interleukin-13 Mediates a Fundamental Pathway for Airway Epithelial Mucus Induced by CD4 T Cells and Interleukin-9 Am. J. Respir. Cell Mol. Biol., November 1, 2002; 27(5): 593 - 602. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. S. Welch, L. Escoubet-Lozach, D. B. Sykes, K. Liddiard, D. R. Greaves, and C. K. Glass TH2 Cytokines and Allergic Challenge Induce Ym1 Expression in Macrophages by a STAT6-dependent Mechanism J. Biol. Chem., November 1, 2002; 277(45): 42821 - 42829. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. W. Wong, P. S. Foster, S. Yasuda, J. C. Qi, S. Mahalingam, E. A. Mellor, G. Katsoulotos, L. Li, J. A. Boyce, S. A. Krilis, et al. Biochemical and Functional Characterization of Human Transmembrane Tryptase (TMT)/Tryptase gamma . TMT IS AN EXOCYTOSED MAST CELL PROTEASE THAT INDUCES AIRWAY HYPERRESPONSIVENESS IN VIVO VIA AN INTERLEUKIN-13/INTERLEUKIN-4 RECEPTOR alpha /SIGNAL TRANSDUCER AND ACTIVATOR OF TRANSCRIPTION (STAT) 6-DEPENDENT PATHWAY J. Biol. Chem., October 25, 2002; 277(44): 41906 - 41915. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. M. Khan, O. Elidemir, C. E. Epstein, K. P. Lally, H. Xue, M. Blackburn, G. L. Larsen, and G. N. Colasurdo Meconium aspiration produces airway hyperresponsiveness and eosinophilic inflammation in a murine model Am J Physiol Lung Cell Mol Physiol, October 1, 2002; 283(4): L785 - L790. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. K. Kumar and P. S. Foster Modeling Allergic Asthma in Mice: Pitfalls and Opportunities Am. J. Respir. Cell Mol. Biol., September 1, 2002; 27(3): 267 - 272. [Abstract] [Full Text] |
||||
![]() |
K. A. Risma, N. Wang, R. P. Andrews, C. M. Cunningham, M. B. Ericksen, J. A. Bernstein, R. Chakraborty, and G. K. K. Hershey V75R576 IL-4 Receptor {alpha} Is Associated with Allergic Asthma and Enhanced IL-4 Receptor Function J. Immunol., August 1, 2002; 169(3): 1604 - 1610. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Mattes, M. Yang, S. Mahalingam, J. Kuehr, D. C. Webb, L. Simson, S. P. Hogan, A. Koskinen, A. N.J. McKenzie, L. A. Dent, et al. Intrinsic Defect in T Cell Production of Interleukin (IL)-13 in the Absence of Both IL-5 and Eotaxin Precludes the Development of Eosinophilia and Airways Hyperreactivity in Experimental Asthma J. Exp. Med., June 3, 2002; 195(11): 1433 - 1444. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. O. Daines and G. K. K. Hershey A Novel Mechanism by Which Interferon-gamma Can Regulate Interleukin (IL)-13 Responses. EVIDENCE FOR INTRACELLULAR STORES OF IL-13 RECEPTOR alpha -2 AND THEIR RAPID MOBILIZATION BY INTERFERON-gamma J. Biol. Chem., March 15, 2002; 277(12): 10387 - 10393. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. M. Grunstein, H. Hakonarson, J. Leiter, M. Chen, R. Whelan, J. S. Grunstein, and S. Chuang IL-13-dependent autocrine signaling mediates altered responsiveness of IgE-sensitized airway smooth muscle Am J Physiol Lung Cell Mol Physiol, March 1, 2002; 282(3): L520 - L528. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Blease, C. Jakubzick, J. M. Schuh, B. H. Joshi, R. K. Puri, and C. M. Hogaboam IL-13 Fusion Cytotoxin Ameliorates Chronic Fungal-Induced Allergic Airway Disease in Mice J. Immunol., December 1, 2001; 167(11): 6583 - 6592. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. C. Webb, A. N. J. McKenzie, and P. S. Foster Expression of the Ym2 Lectin-binding Protein Is Dependent on Interleukin (IL)-4 and IL-13 Signal Transduction. IDENTIFICATION OF A NOVEL ALLERGY-ASSOCIATED PROTEIN J. Biol. Chem., November 2, 2001; 276(45): 41969 - 41976. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. M. Walter, J. J. McIntire, G. Berry, A. N. J. McKenzie, D. D. Donaldson, R. H. DeKruyff, and D. T. Umetsu Critical Role for IL-13 in the Development of Allergen-Induced Airway Hyperreactivity J. Immunol., October 15, 2001; 167(8): 4668 - 4675. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Yang, S. P. Hogan, P. J. Henry, K. I. Matthaei, A. N. J. McKenzie, I. G. Young, M. E. Rothenberg, and P. S. Foster Interleukin-13 Mediates Airways Hyperreactivity through the IL-4 Receptor-Alpha Chain and STAT-6 Independently of IL-5 and Eotaxin Am. J. Respir. Cell Mol. Biol., October 1, 2001; 25(4): 522 - 530. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Hertz, S. Mahalingam, I. Dalum, S. Klysner, J. Mattes, A. Neisig, S. Mouritsen, P. S. Foster, and A. Gautam Active Vaccination Against IL-5 Bypasses Immunological Tolerance and Ameliorates Experimental Asthma J. Immunol., October 1, 2001; 167(7): 3792 - 3799. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Mattes, M. Yang, A. Siqueira, K. Clark, J. MacKenzie, A. N. J. McKenzie, D. C. Webb, K. I. Matthaei, and P. S. Foster IL-13 Induces Airways Hyperreactivity Independently of the IL-4R{alpha} Chain in the Allergic Lung J. Immunol., August 1, 2001; 167(3): 1683 - 1692. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. G. Ford, D. Rennick, D. D. Donaldson, R. Venkayya, C. McArthur, E. Hansell, V. P. Kurup, M. Warnock, and G. Grunig IL-13 and IFN-{gamma}: Interactions in Lung Inflammation J. Immunol., August 1, 2001; 167(3): 1769 - 1777. [Abstract] [Full Text] [PDF] |
||||
![]() |
J.C. Kips Cytokines in asthma Eur. Respir. J., July 2, 2001; 18(34_suppl): 24S - 33s. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. J. Dobrzanski, J. B. Reome, and R. W. Dutton Role of Effector Cell-Derived IL-4, IL-5, and Perforin in Early and Late Stages of Type 2 CD8 Effector Cell-Mediated Tumor Rejection J. Immunol., July 1, 2001; 167(1): 424 - 434. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. Blease, C. Jakubzick, J. Westwick, N. Lukacs, S. L. Kunkel, and C. M. Hogaboam Therapeutic Effect of IL-13 Immunoneutralization During Chronic Experimental Fungal Asthma J. Immunol., April 15, 2001; 166(8): 5219 - 5224. [Abstract] [Full Text] [PDF] |
||||
![]() |
J.C. Kips, K.G. Tournoy, and R.A. Pauwels New anti-asthma therapies: suppression of the effect of interleukin (IL)-4 and IL-5 Eur. Respir. J., March 1, 2001; 17(3): 499 - 506. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Kawasaki, H. Takizawa, H. Yoneyama, T. Nakayama, R. Fujisawa, M. Izumizaki, T. Imai, O. Yoshie, I. Homma, K. Yamamoto, et al. Intervention of Thymus and Activation-Regulated Chemokine Attenuates the Development of Allergic Airway Inflammation and Hyperresponsiveness in Mice J. Immunol., February 1, 2001; 166(3): 2055 - 2062. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |