1,25-Dihydroxyvitamin D3 and phorbol esters (TPA) may induce select in vitro differentiation pathways in the HL60 promyelocytic cell line

P. Rossi, L. Chini, A. Fattorossi, M. Gidlund, E. Galli, K. Laan, M. Jondal, H. Wigzell

Research output: Contribution to journalArticle

Abstract

Monocytic features can be induced in the myeloid cell line HL60 in order to provide a suitable in vitro model for the investigation of in vitro activity in mononuclear phagocytes. 1,25-Dihydroxyvitamin D3 (calcitriol) induced the HL60 cell line to express the monocytic differentiation antigen Leu M3 in about 30-50% of the cells along with an increase (up to 20%) in the expression of HLA-DR but not HLA-DQ class II antigen. Functional investigation showed that calcitriol-treated cells formed rosettes with sheep erythrocytes coated with an anti-sheep erythrocyte-specific IgG2a mouse MoAb and readily ingested them. In addition, these same sensitized erythrocytes were lysed in an 18-hr antibody-dependent cellular cytotoxicity (ADCC) assay. All together these data indicate the presence of functionally active Fc-IgG receptors (FcR). Sorting experiments demonstrated that only Leu M3+ HLA-DR+ cells contained the effector cell population; such was also the case for blood monocytes. This phenotypic profile was, however, not predictive per se of FcR presence and function, as 12,O-tetradecanoylphorbol-13-acetate (TPA)-induced HL60 cells neither formed rosettes nor phagocytosed nor exhibited ADCC activity, although they express Leu M3 and HLA-DR (as well as HLA-DQ) antigens. These results suggest that calcitriol and TPA cause the differentiation of HL60 cells along distinct pathways. On the other hand, different subpopulations with given predetermined differentiation capabilities may coexist in HL60 cell line. This hypothesis gains support by the observation that when TPA and calcitriol were added together to the undifferentiated cells, the resulting phenotypic pattern was representative of the different activities of both of the inducers as they were used separately.

Original languageEnglish
Pages (from-to)308-316
Number of pages9
JournalClinical Immunology and Immunopathology
Volume44
Issue number3
DOIs
Publication statusPublished - 1987

Fingerprint

Calcitriol
HL-60 Cells
Phorbol Esters
Tetradecanoylphorbol Acetate
HLA-DR Antigens
Cell Line
HLA-DQ Antigens
IgG Receptors
Fc Receptors
Erythrocytes
Sheep
Antibodies
Histocompatibility Antigens Class II
Differentiation Antigens
Myeloid Cells
Phagocytes
Phagocytosis
Monocytes
In Vitro Techniques
Population

ASJC Scopus subject areas

  • Immunology
  • Immunology and Allergy
  • Pathology and Forensic Medicine

Cite this

1,25-Dihydroxyvitamin D3 and phorbol esters (TPA) may induce select in vitro differentiation pathways in the HL60 promyelocytic cell line. / Rossi, P.; Chini, L.; Fattorossi, A.; Gidlund, M.; Galli, E.; Laan, K.; Jondal, M.; Wigzell, H.

In: Clinical Immunology and Immunopathology, Vol. 44, No. 3, 1987, p. 308-316.

Research output: Contribution to journalArticle

Rossi, P. ; Chini, L. ; Fattorossi, A. ; Gidlund, M. ; Galli, E. ; Laan, K. ; Jondal, M. ; Wigzell, H. / 1,25-Dihydroxyvitamin D3 and phorbol esters (TPA) may induce select in vitro differentiation pathways in the HL60 promyelocytic cell line. In: Clinical Immunology and Immunopathology. 1987 ; Vol. 44, No. 3. pp. 308-316.
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abstract = "Monocytic features can be induced in the myeloid cell line HL60 in order to provide a suitable in vitro model for the investigation of in vitro activity in mononuclear phagocytes. 1,25-Dihydroxyvitamin D3 (calcitriol) induced the HL60 cell line to express the monocytic differentiation antigen Leu M3 in about 30-50{\%} of the cells along with an increase (up to 20{\%}) in the expression of HLA-DR but not HLA-DQ class II antigen. Functional investigation showed that calcitriol-treated cells formed rosettes with sheep erythrocytes coated with an anti-sheep erythrocyte-specific IgG2a mouse MoAb and readily ingested them. In addition, these same sensitized erythrocytes were lysed in an 18-hr antibody-dependent cellular cytotoxicity (ADCC) assay. All together these data indicate the presence of functionally active Fc-IgG receptors (FcR). Sorting experiments demonstrated that only Leu M3+ HLA-DR+ cells contained the effector cell population; such was also the case for blood monocytes. This phenotypic profile was, however, not predictive per se of FcR presence and function, as 12,O-tetradecanoylphorbol-13-acetate (TPA)-induced HL60 cells neither formed rosettes nor phagocytosed nor exhibited ADCC activity, although they express Leu M3 and HLA-DR (as well as HLA-DQ) antigens. These results suggest that calcitriol and TPA cause the differentiation of HL60 cells along distinct pathways. On the other hand, different subpopulations with given predetermined differentiation capabilities may coexist in HL60 cell line. This hypothesis gains support by the observation that when TPA and calcitriol were added together to the undifferentiated cells, the resulting phenotypic pattern was representative of the different activities of both of the inducers as they were used separately.",
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AU - Chini, L.

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AU - Laan, K.

AU - Jondal, M.

AU - Wigzell, H.

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AB - Monocytic features can be induced in the myeloid cell line HL60 in order to provide a suitable in vitro model for the investigation of in vitro activity in mononuclear phagocytes. 1,25-Dihydroxyvitamin D3 (calcitriol) induced the HL60 cell line to express the monocytic differentiation antigen Leu M3 in about 30-50% of the cells along with an increase (up to 20%) in the expression of HLA-DR but not HLA-DQ class II antigen. Functional investigation showed that calcitriol-treated cells formed rosettes with sheep erythrocytes coated with an anti-sheep erythrocyte-specific IgG2a mouse MoAb and readily ingested them. In addition, these same sensitized erythrocytes were lysed in an 18-hr antibody-dependent cellular cytotoxicity (ADCC) assay. All together these data indicate the presence of functionally active Fc-IgG receptors (FcR). Sorting experiments demonstrated that only Leu M3+ HLA-DR+ cells contained the effector cell population; such was also the case for blood monocytes. This phenotypic profile was, however, not predictive per se of FcR presence and function, as 12,O-tetradecanoylphorbol-13-acetate (TPA)-induced HL60 cells neither formed rosettes nor phagocytosed nor exhibited ADCC activity, although they express Leu M3 and HLA-DR (as well as HLA-DQ) antigens. These results suggest that calcitriol and TPA cause the differentiation of HL60 cells along distinct pathways. On the other hand, different subpopulations with given predetermined differentiation capabilities may coexist in HL60 cell line. This hypothesis gains support by the observation that when TPA and calcitriol were added together to the undifferentiated cells, the resulting phenotypic pattern was representative of the different activities of both of the inducers as they were used separately.

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