Abstract
The E48 antigen, a putative human homologue of the 20-kD protein present in desmosomal preparations of bovine muzzle, and formerly called desmoglein III (dg4), is a promising target antigen for antibody- based therapy of squamous cell carcinoma in man. To anticipate the effect of high antibody dose treatment, and to evaluate the possible biological involvement of the antigen in carcinogenesis, we set out to molecularly characterize the antigen. A cDNA clone encoding the E48 antigen was isolated by expression cloning in COS cells. Sequence analysis revealed that the clone contained an open reading frame of 128 amino acids, encoding a core protein of 13,286 kD. Database searching showed that the E48 antigen has a high level of sequence similarity with the mouse ThB antigen, a member of the Ly-6 antigen family. Phosphatidylinositol-specific (PI-specific) phospholipase-C treatment indicated that the E48 antigen is glycosylphosphatidylinositol-anchored (GPI-anchored) to the plasma membrane. The gene encoding the E48 antigen is a single copy gene, located on human chromosome 8 in the 8q24-qter region. The expression of the gene is confined to keratinocytes and squamous tumor cells. The putative mouse homologue, the ThB antigen, originally identified as an antigen on cells of the lymphocyte lineage, was shown to be highly expressed in squamous mouse epithelia. Moreover, the ThB expression level is in keratinocytes, in contrast to that in lymphocytes, not mouse strain related. Transfection of mouse SV40-polyoma transformed mouse NIH/3T3 cells with the E48 cDNA confirmed that the antigen is likely to be involved in cell-cell adhesion.
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- Aarts H. J., den Dunnen J. T., Leunissen J., Lubsen N. H., Schoenmakers J. G. The gamma-crystallin gene families: sequence and evolutionary patterns. J Mol Evol. 1988;27(2):163–172. doi: 10.1007/BF02138377. [DOI] [PubMed] [Google Scholar]
- Anderson R. G. Caveolae: where incoming and outgoing messengers meet. Proc Natl Acad Sci U S A. 1993 Dec 1;90(23):10909–10913. doi: 10.1073/pnas.90.23.10909. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bickmore W. A., Longbottom D., Oghene K., Fletcher J. M., van Heyningen V. Colocalization of the human CD59 gene to 11p13 with the MIC11 cell surface antigen. Genomics. 1993 Jul;17(1):129–135. doi: 10.1006/geno.1993.1293. [DOI] [PubMed] [Google Scholar]
- Blake P. G., Madrenas J., Halloran P. F. Ly-6 in kidney is widely expressed on tubular epithelium and vascular endothelium and is up-regulated by interferon gamma. J Am Soc Nephrol. 1993 Nov;4(5):1140–1150. doi: 10.1681/ASN.V451140. [DOI] [PubMed] [Google Scholar]
- Bohuslav J., Cinek T., Horejsí V. Large, detergent-resistant complexes containing murine antigens Thy-1 and Ly-6 and protein tyrosine kinase p56lck. Eur J Immunol. 1993 Apr;23(4):825–831. doi: 10.1002/eji.1830230409. [DOI] [PubMed] [Google Scholar]
- Brakenhoff R. H., Guerts van Kessel A. H., Oldenburg M., Wijnen J. T., Bloemendal H., Meera Khan P., Schoenmakers J. G. Human alpha B-crystallin (CRYA2) gene mapped to chromosome 11q12-q23. Hum Genet. 1990 Jul;85(2):237–240. doi: 10.1007/BF00193203. [DOI] [PubMed] [Google Scholar]
- Brakenhoff R. H., Henskens H. A., van Rossum M. W., Lubsen N. H., Schoenmakers J. G. Activation of the gamma E-crystallin pseudogene in the human hereditary Coppock-like cataract. Hum Mol Genet. 1994 Feb;3(2):279–283. doi: 10.1093/hmg/3.2.279. [DOI] [PubMed] [Google Scholar]
- Brakenhoff R. H., Knippels E. M., van Dongen G. A. Optimization and simplification of expression cloning in eukaryotic vector/host systems. Anal Biochem. 1994 May 1;218(2):460–463. doi: 10.1006/abio.1994.1208. [DOI] [PubMed] [Google Scholar]
- Brown D. A., Rose J. K. Sorting of GPI-anchored proteins to glycolipid-enriched membrane subdomains during transport to the apical cell surface. Cell. 1992 Feb 7;68(3):533–544. doi: 10.1016/0092-8674(92)90189-j. [DOI] [PubMed] [Google Scholar]
- Bruynzeel I., Van der Raaij L. M., Boorsma D. M., De Haan P., Scheper R. J., Kraal G., Willemze R. Spectophotometric quantification of cell-cell adherence by an enzyme-linked immuno-cell adhesion assay. J Immunol Methods. 1990 Aug 28;132(1):51–56. doi: 10.1016/0022-1759(90)90397-e. [DOI] [PubMed] [Google Scholar]
- Buxton R. S., Cowin P., Franke W. W., Garrod D. R., Green K. J., King I. A., Koch P. J., Magee A. I., Rees D. A., Stanley J. R. Nomenclature of the desmosomal cadherins. J Cell Biol. 1993 May;121(3):481–483. doi: 10.1083/jcb.121.3.481. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Coney L. R., Tomassetti A., Carayannopoulos L., Frasca V., Kamen B. A., Colnaghi M. I., Zurawski V. R., Jr Cloning of a tumor-associated antigen: MOv18 and MOv19 antibodies recognize a folate-binding protein. Cancer Res. 1991 Nov 15;51(22):6125–6132. [PubMed] [Google Scholar]
- Cray C., Keane R. W., Malek T. R., Levy R. B. Regulation and selective expression of Ly-6A/E, a lymphocyte activation molecule, in the central nervous system. Brain Res Mol Brain Res. 1990 Jun;8(1):9–15. doi: 10.1016/0169-328x(90)90003-v. [DOI] [PubMed] [Google Scholar]
- Cross G. A. Glycolipid anchoring of plasma membrane proteins. Annu Rev Cell Biol. 1990;6:1–39. doi: 10.1146/annurev.cb.06.110190.000245. [DOI] [PubMed] [Google Scholar]
- Davies A., Simmons D. L., Hale G., Harrison R. A., Tighe H., Lachmann P. J., Waldmann H. CD59, an LY-6-like protein expressed in human lymphoid cells, regulates the action of the complement membrane attack complex on homologous cells. J Exp Med. 1989 Sep 1;170(3):637–654. doi: 10.1084/jem.170.3.637. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Eidelman F. J., Fuks A., DeMarte L., Taheri M., Stanners C. P. Human carcinoembryonic antigen, an intercellular adhesion molecule, blocks fusion and differentiation of rat myoblasts. J Cell Biol. 1993 Oct;123(2):467–475. doi: 10.1083/jcb.123.2.467. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Feinberg A. P., Vogelstein B. A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity. Anal Biochem. 1983 Jul 1;132(1):6–13. doi: 10.1016/0003-2697(83)90418-9. [DOI] [PubMed] [Google Scholar]
- Ferguson M. A., Williams A. F. Cell-surface anchoring of proteins via glycosyl-phosphatidylinositol structures. Annu Rev Biochem. 1988;57:285–320. doi: 10.1146/annurev.bi.57.070188.001441. [DOI] [PubMed] [Google Scholar]
- Fleming T. J., O'hUigin C., Malek T. R. Characterization of two novel Ly-6 genes. Protein sequence and potential structural similarity to alpha-bungarotoxin and other neurotoxins. J Immunol. 1993 Jun 15;150(12):5379–5390. [PubMed] [Google Scholar]
- Forsberg U. H., Bazil V., Stefanová I., Schröder J. Gene for human CD59 (likely Ly-6 homologue) is located on the short arm of chromosome 11. Immunogenetics. 1989;30(3):188–193. doi: 10.1007/BF02421205. [DOI] [PubMed] [Google Scholar]
- Fournié J. J., Mullins R. J., Basten A. Isolation and structural characteristics of a monoclonal antibody-defined cross-reactive phospholipid antigen from Mycobacterium tuberculosis and Mycobacterium leprae. J Biol Chem. 1991 Jan 15;266(2):1211–1219. [PubMed] [Google Scholar]
- Franke W. W., Schmid E., Grund C., Müller H., Engelbrecht I., Moll R., Stadler J., Jarasch E. D. Antibodies to high molecular weight polypeptides of desmosomes: specific localization of a class of junctional proteins in cells and tissue. Differentiation. 1981;20(3):217–241. doi: 10.1111/j.1432-0436.1981.tb01178.x. [DOI] [PubMed] [Google Scholar]
- Garcia M., Mirre C., Quaroni A., Reggio H., Le Bivic A. GPI-anchored proteins associate to form microdomains during their intracellular transport in Caco-2 cells. J Cell Sci. 1993 Apr;104(Pt 4):1281–1290. doi: 10.1242/jcs.104.4.1281. [DOI] [PubMed] [Google Scholar]
- Geiger B., Ayalon O. Cadherins. Annu Rev Cell Biol. 1992;8:307–332. doi: 10.1146/annurev.cb.08.110192.001515. [DOI] [PubMed] [Google Scholar]
- Gorbsky G., Steinberg M. S. Isolation of the intercellular glycoproteins of desmosomes. J Cell Biol. 1981 Jul;90(1):243–248. doi: 10.1083/jcb.90.1.243. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gordon D. L., Sadlon T., Hefford C., Adrian D. Expression of CD59, a regulator of the membrane attack complex of complement, on human astrocytes. Brain Res Mol Brain Res. 1993 Jun;18(4):335–338. doi: 10.1016/0169-328x(93)90098-a. [DOI] [PubMed] [Google Scholar]
- Gough N. M. Rapid and quantitative preparation of cytoplasmic RNA from small numbers of cells. Anal Biochem. 1988 Aug 15;173(1):93–95. doi: 10.1016/0003-2697(88)90164-9. [DOI] [PubMed] [Google Scholar]
- Gumley T. P., McKenzie I. F., Kozak C. A., Sandrin M. S. Isolation and characterization of cDNA clones for the mouse thymocyte B cell antigen (ThB). J Immunol. 1992 Oct 15;149(8):2615–2618. [PubMed] [Google Scholar]
- Gumley T. P., McKenzie I. F., Sandrin M. S. Polymorphism at the mouse Thb locus. Immunogenetics. 1994;39(6):390–394. doi: 10.1007/BF00176155. [DOI] [PubMed] [Google Scholar]
- Havran W. L., Lancki D. W., Moldwin R. L., Dialynas D. P., Fitch F. W. Characterization of an anti-Ly-6 monoclonal antibody which defines and activates cytolytic T lymphocytes. J Immunol. 1988 Feb 15;140(4):1034–1042. [PubMed] [Google Scholar]
- Henderson G. B., Zevely E. M. Transport of methotrexate in L1210 cells: effect of ions on the rate and extent of uptake. Arch Biochem Biophys. 1980 Mar;200(1):149–155. doi: 10.1016/0003-9861(80)90341-0. [DOI] [PubMed] [Google Scholar]
- Hogarth P. M., McKenzie I. F., Sutton V. R., Curnow K. M., Lee B. K., Eicher E. M. Mapping of the mouse Ly-6, Xp-14, and Gdc-1 loci to chromosome 15. Immunogenetics. 1987;25(1):21–27. doi: 10.1007/BF00768829. [DOI] [PubMed] [Google Scholar]
- HogenEsch H., de Geus B., Tielen F., Rozing J. Constitutive expression of Ly-6.A2 on murine keratinocytes and inducible expression on TCR gamma delta+ dendritic epidermal T cells. J Dermatol Sci. 1993 Apr;5(2):114–121. doi: 10.1016/0923-1811(93)90079-5. [DOI] [PubMed] [Google Scholar]
- Kamiura S., Nolan C. M., Meruelo D. Long-range physical map of the Ly-6 complex: mapping the Ly-6 multigene family by field-inversion and two-dimensional gel electrophoresis. Genomics. 1992 Jan;12(1):89–105. doi: 10.1016/0888-7543(92)90411-k. [DOI] [PubMed] [Google Scholar]
- Korty P. E., Brando C., Shevach E. M. CD59 functions as a signal-transducing molecule for human T cell activation. J Immunol. 1991 Jun 15;146(12):4092–4098. [PubMed] [Google Scholar]
- Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
- LeClair K. P., Palfree R. G., Flood P. M., Hammerling U., Bothwell A. Isolation of a murine Ly-6 cDNA reveals a new multigene family. EMBO J. 1986 Dec 1;5(12):3227–3234. doi: 10.1002/j.1460-2075.1986.tb04633.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Luhrs C. A., Slomiany B. L. A human membrane-associated folate binding protein is anchored by a glycosyl-phosphatidylinositol tail. J Biol Chem. 1989 Dec 25;264(36):21446–21449. [PubMed] [Google Scholar]
- MacNeil I., Kennedy J., Godfrey D. I., Jenkins N. A., Masciantonio M., Mineo C., Gilbert D. J., Copeland N. G., Boyd R. L., Zlotnik A. Isolation of a cDNA encoding thymic shared antigen-1. A new member of the Ly6 family with a possible role in T cell development. J Immunol. 1993 Dec 15;151(12):6913–6923. [PubMed] [Google Scholar]
- Malek T. R., Ortega G., Chan C., Kroczek R. A., Shevach E. M. Role of Ly-6 in lymphocyte activation. II. Induction of T cell activation by monoclonal anti-Ly-6 antibodies. J Exp Med. 1986 Sep 1;164(3):709–722. doi: 10.1084/jem.164.3.709. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mayor S., Rothberg K. G., Maxfield F. R. Sequestration of GPI-anchored proteins in caveolae triggered by cross-linking. Science. 1994 Jun 24;264(5167):1948–1951. doi: 10.1126/science.7516582. [DOI] [PubMed] [Google Scholar]
- Palfree R. G., Sirlin S., Dumont F. J., Hämmerling U. N-terminal and cDNA characterization of murine lymphocyte antigen Ly-6C.2. J Immunol. 1988 Jan 1;140(1):305–310. [PubMed] [Google Scholar]
- Palfree R. Ly-6 nomenclature. Immunol Today. 1991 Jan;12(1):45–46. doi: 10.1016/0167-5699(91)90112-7. [DOI] [PubMed] [Google Scholar]
- Proudfoot N. J. How RNA polymerase II terminates transcription in higher eukaryotes. Trends Biochem Sci. 1989 Mar;14(3):105–110. doi: 10.1016/0968-0004(89)90132-1. [DOI] [PubMed] [Google Scholar]
- Proudfoot N. Poly(A) signals. Cell. 1991 Feb 22;64(4):671–674. doi: 10.1016/0092-8674(91)90495-k. [DOI] [PubMed] [Google Scholar]
- Quak J. J., Balm A. J., van Dongen G. A., Brakkee J. G., Scheper R. J., Snow G. B., Meijer C. J. A 22-kd surface antigen detected by monoclonal antibody E 48 is exclusively expressed in stratified squamous and transitional epithelia. Am J Pathol. 1990 Jan;136(1):191–197. [PMC free article] [PubMed] [Google Scholar]
- Rock K. L., Reiser H., Bamezai A., McGrew J., Benacerraf B. The LY-6 locus: a multigene family encoding phosphatidylinositol-anchored membrane proteins concerned with T-cell activation. Immunol Rev. 1989 Oct;111:195–224. doi: 10.1111/j.1600-065x.1989.tb00547.x. [DOI] [PubMed] [Google Scholar]
- Rommens C. M., van der Biezen E. A., Ouwerkerk P. B., Nijkamp H. J., Hille J. Ac-induced disruption of the double Ds structure in tomato. Mol Gen Genet. 1991 Sep;228(3):453–458. doi: 10.1007/BF00260639. [DOI] [PubMed] [Google Scholar]
- Rothberg K. G., Heuser J. E., Donzell W. C., Ying Y. S., Glenney J. R., Anderson R. G. Caveolin, a protein component of caveolae membrane coats. Cell. 1992 Feb 21;68(4):673–682. doi: 10.1016/0092-8674(92)90143-z. [DOI] [PubMed] [Google Scholar]
- Sargiacomo M., Sudol M., Tang Z., Lisanti M. P. Signal transducing molecules and glycosyl-phosphatidylinositol-linked proteins form a caveolin-rich insoluble complex in MDCK cells. J Cell Biol. 1993 Aug;122(4):789–807. doi: 10.1083/jcb.122.4.789. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schmidt J. W., Piepenhagen P. A., Nelson W. J. Modulation of epithelial morphogenesis and cell fate by cell-to-cell signals and regulated cell adhesion. Semin Cell Biol. 1993 Jun;4(3):161–173. doi: 10.1006/scel.1993.1020. [DOI] [PubMed] [Google Scholar]
- Schrijvers A. H., Gerretsen M., Fritz J. M., van Walsum M., Quak J. J., Snow G. B., van Dongen G. A. Evidence for a role of the monoclonal antibody E48 defined antigen in cell-cell adhesion in squamous epithelia and head and neck squamous cell carcinoma. Exp Cell Res. 1991 Oct;196(2):264–269. doi: 10.1016/0014-4827(91)90260-2. [DOI] [PubMed] [Google Scholar]
- Schrijvers A. H., Gerretsen M., van Walsum M., Braakhuis B. J., Quak J. J., Snow G. B., van Dongen G. A. Potential for targeting head and neck squamous cell carcinoma with monoclonal antibody K984. Cancer Immunol Immunother. 1992;34(4):252–258. doi: 10.1007/BF01741793. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schwarz M. A., Owaribe K., Kartenbeck J., Franke W. W. Desmosomes and hemidesmosomes: constitutive molecular components. Annu Rev Cell Biol. 1990;6:461–491. doi: 10.1146/annurev.cb.06.110190.002333. [DOI] [PubMed] [Google Scholar]
- Seed B. An LFA-3 cDNA encodes a phospholipid-linked membrane protein homologous to its receptor CD2. 1987 Oct 29-Nov 4Nature. 329(6142):840–842. doi: 10.1038/329840a0. [DOI] [PubMed] [Google Scholar]
- Seed B., Aruffo A. Molecular cloning of the CD2 antigen, the T-cell erythrocyte receptor, by a rapid immunoselection procedure. Proc Natl Acad Sci U S A. 1987 May;84(10):3365–3369. doi: 10.1073/pnas.84.10.3365. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shenoy-Scaria A. M., Gauen L. K., Kwong J., Shaw A. S., Lublin D. M. Palmitylation of an amino-terminal cysteine motif of protein tyrosine kinases p56lck and p59fyn mediates interaction with glycosyl-phosphatidylinositol-anchored proteins. Mol Cell Biol. 1993 Oct;13(10):6385–6392. doi: 10.1128/mcb.13.10.6385. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shenoy-Scaria A. M., Kwong J., Fujita T., Olszowy M. W., Shaw A. S., Lublin D. M. Signal transduction through decay-accelerating factor. Interaction of glycosyl-phosphatidylinositol anchor and protein tyrosine kinases p56lck and p59fyn 1. J Immunol. 1992 Dec 1;149(11):3535–3541. [PubMed] [Google Scholar]
- Skerrow C. J., Hunter I., Skerrow D. Dissection of the bovine epidermal desmosome into cytoplasmic protein and membrane glycoprotein domains. J Cell Sci. 1987 Apr;87(Pt 3):411–421. doi: 10.1242/jcs.87.3.411. [DOI] [PubMed] [Google Scholar]
- Stefanová I., Horejsí V., Ansotegui I. J., Knapp W., Stockinger H. GPI-anchored cell-surface molecules complexed to protein tyrosine kinases. Science. 1991 Nov 15;254(5034):1016–1019. doi: 10.1126/science.1719635. [DOI] [PubMed] [Google Scholar]
- Su L. K., Vogelstein B., Kinzler K. W. Association of the APC tumor suppressor protein with catenins. Science. 1993 Dec 10;262(5140):1734–1737. doi: 10.1126/science.8259519. [DOI] [PubMed] [Google Scholar]
- Suijkerbuijk R. F., Looijenga L., de Jong B., Oosterhuis J. W., Cassiman J. J., Geurts van Kessel A. Verification of isochromosome 12p and identification of other chromosome 12 aberrations in gonadal and extragonadal human germ cell tumors by bicolor double fluorescence in situ hybridization. Cancer Genet Cytogenet. 1992 Oct 1;63(1):8–16. doi: 10.1016/0165-4608(92)90056-e. [DOI] [PubMed] [Google Scholar]
- Takeichi M. Cadherins: a molecular family important in selective cell-cell adhesion. Annu Rev Biochem. 1990;59:237–252. doi: 10.1146/annurev.bi.59.070190.001321. [DOI] [PubMed] [Google Scholar]
- Tone M., Walsh L. A., Waldmann H. Gene structure of human CD59 and demonstration that discrete mRNAs are generated by alternative polyadenylation. J Mol Biol. 1992 Oct 5;227(3):971–976. doi: 10.1016/0022-2836(92)90239-g. [DOI] [PubMed] [Google Scholar]
- Troyanovsky S. M., Eshkind L. G., Troyanovsky R. B., Leube R. E., Franke W. W. Contributions of cytoplasmic domains of desmosomal cadherins to desmosome assembly and intermediate filament anchorage. Cell. 1993 Feb 26;72(4):561–574. doi: 10.1016/0092-8674(93)90075-2. [DOI] [PubMed] [Google Scholar]
- Tsukita S., Oishi K., Akiyama T., Yamanashi Y., Yamamoto T., Tsukita S. Specific proto-oncogenic tyrosine kinases of src family are enriched in cell-to-cell adherens junctions where the level of tyrosine phosphorylation is elevated. J Cell Biol. 1991 May;113(4):867–879. doi: 10.1083/jcb.113.4.867. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Vleminckx K., Vakaet L., Jr, Mareel M., Fiers W., van Roy F. Genetic manipulation of E-cadherin expression by epithelial tumor cells reveals an invasion suppressor role. Cell. 1991 Jul 12;66(1):107–119. doi: 10.1016/0092-8674(91)90143-m. [DOI] [PubMed] [Google Scholar]
- Wahle E., Keller W. The biochemistry of 3'-end cleavage and polyadenylation of messenger RNA precursors. Annu Rev Biochem. 1992;61:419–440. doi: 10.1146/annurev.bi.61.070192.002223. [DOI] [PubMed] [Google Scholar]
- Wheelock M. J., Jensen P. J. Regulation of keratinocyte intercellular junction organization and epidermal morphogenesis by E-cadherin. J Cell Biol. 1992 Apr;117(2):415–425. doi: 10.1083/jcb.117.2.415. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wickens M. How the messenger got its tail: addition of poly(A) in the nucleus. Trends Biochem Sci. 1990 Jul;15(7):277–281. doi: 10.1016/0968-0004(90)90054-f. [DOI] [PubMed] [Google Scholar]
- Wijngaard P. L., Metzelaar M. J., MacHugh N. D., Morrison W. I., Clevers H. C. Molecular characterization of the WC1 antigen expressed specifically on bovine CD4-CD8- gamma delta T lymphocytes. J Immunol. 1992 Nov 15;149(10):3273–3277. [PubMed] [Google Scholar]
- Zurzolo C., Lisanti M. P., Caras I. W., Nitsch L., Rodriguez-Boulan E. Glycosylphosphatidylinositol-anchored proteins are preferentially targeted to the basolateral surface in Fischer rat thyroid epithelial cells. J Cell Biol. 1993 Jun;121(5):1031–1039. doi: 10.1083/jcb.121.5.1031. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zurzolo C., van't Hof W., van Meer G., Rodriguez-Boulan E. VIP21/caveolin, glycosphingolipid clusters and the sorting of glycosylphosphatidylinositol-anchored proteins in epithelial cells. EMBO J. 1994 Jan 1;13(1):42–53. doi: 10.1002/j.1460-2075.1994.tb06233.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- de Bree R., Roos J. C., Quak J. J., den Hollander W., van den Brekel M. W., van der Wal J. E., Tobi H., Snow G. B., van Dongen G. A. Clinical imaging of head and neck cancer with technetium-99m-labeled monoclonal antibody E48 IgG or F(ab')2. J Nucl Med. 1994 May;35(5):775–783. [PubMed] [Google Scholar]