Home LiteratureArticle Details
PMID: 20545610 Published · ppublish English Journal Article Review

Hedgehog signaling in the normal and neoplastic mammary gland.

Current drug targets ·Vol. 11 ·No. 9 ·2010-09-00 ·Pages 1103-11

Visbal AP, Lewis MT

Abstract

The hedgehog signal transduction network is a critical regulator of metazoan development. Inappropriate activation of this network is implicated in several different cancers, including breast. Genetic evidence in mice as well as molecular biological studies in human cells clearly indicate that activated signaling can lead to mammary hyperplasia and, in some cases, tumor formation. However, the exact role(s) activated hedgehog signaling plays in the development or progression of breast cancer also remain unclear. In this review, we have discussed recent data regarding the mechanism(s) by which the hedgehog network may signal in the mammary gland, as well as the data implicating activated signaling as a contributing factor to breast cancer development. Finally, we provide a brief update on the available hedgehog signaling inhibitors with respect to ongoing clinical trials, some of which will include locally advanced or metastatic breast cancers. Given the growing intensity with which the hedgehog signaling network is being studied in the normal and neoplastic mammary gland, a more complete understanding of this network should allow more effective targeting of its activities in breast cancer treatment or prevention.

MeSH Terms
Animals Breast Neoplasms/genetics,metabolism,pathology Female Hedgehog Proteins/genetics,metabolism Humans Mammary Glands, Animal/growth & development,metabolism,pathology Mammary Glands, Human/growth & development,metabolism,pathology Mice Mice, Knockout Mice, Transgenic Signal Transduction
Chemicals
Hedgehog Proteins
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Visbal Adriana P
The Lester and Sue Smith Breast Center, Baylor College of Medicine, One Baylor Plaza, BCM600, Room N1210, Houston, TX 77030, USA.
Lewis Michael T
References (105)
105 references, click to expand
  1. Intraflagellar transport, cilia, and mammalian Hedgehog signaling: analysis in mouse embryonic fibroblasts.
    Dev Dyn. 2008 Aug;237(8):2030-8 PMID: 18488998
  2. The ihog cell-surface proteins bind Hedgehog and mediate pathway activation.
    Cell. 2006 Apr 21;125(2):343-57 PMID: 16630821
  3. Hedgehog signalling in breast cancer.
    Carcinogenesis. 2009 Jun;30(6):903-11 PMID: 19237605
  4. Primary cilia can both mediate and suppress Hedgehog pathway-dependent tumorigenesis.
    Nat Med. 2009 Sep;15(9):1055-61 PMID: 19701205
  5. Hedgehog signaling and response to cyclopamine differ in epithelial and stromal cells in benign breast and breast cancer.
    Cancer Biol Ther. 2006 Jun;5(6):674-83 PMID: 16855373
  6. Activation of expression of hedgehog target genes in basal cell carcinomas.
    J Invest Dermatol. 2001 May;116(5):739-42 PMID: 11348463
  7. Ptch1 is required locally for mammary gland morphogenesis and systemically for ductal elongation.
    Development. 2009 May;136(9):1423-32 PMID: 19297414
  8. Mice with a targeted mutation of patched2 are viable but develop alopecia and epidermal hyperplasia.
    Mol Cell Biol. 2006 Sep;26(17):6609-22 PMID: 16914743
  9. Primary cilia regulate branching morphogenesis during mammary gland development.
    Curr Biol. 2010 Apr 27;20(8):731-7 PMID: 20381354
  10. Candidate genes in breast cancer revealed by microarray-based comparative genomic hybridization of archived tissue.
    Cancer Res. 2005 Jan 15;65(2):439-47 PMID: 15695385
  11. Teratogen-mediated inhibition of target tissue response to Shh signaling.
    Science. 1998 Jun 5;280(5369):1603-7 PMID: 9616123
  12. Activity-dependent internalization of smoothened mediated by beta-arrestin 2 and GRK2.
    Science. 2004 Dec 24;306(5705):2257-60 PMID: 15618519
  13. Kinesin-II is required for axonal transport of choline acetyltransferase in Drosophila.
    J Cell Biol. 1999 Nov 1;147(3):507-18 PMID: 10545496
  14. Medulloblastomas derived from Cxcr6 mutant mice respond to treatment with a smoothened inhibitor.
    Cancer Res. 2007 Apr 15;67(8):3871-7 PMID: 17413002
  15. Patching the gaps in Hedgehog signalling.
    Nat Cell Biol. 2007 Sep;9(9):1005-9 PMID: 17762891
  16. Teratogenic compounds of Veratrum californicum (Durand) X. Cyclopia in rabbits produced by cyclopamine.
    Teratology. 1970 May;3(2):175-80 PMID: 4986632
  17. Teratogenic effects of cyclopamine and jervine in rats, mice and hamsters.
    Proc Soc Exp Biol Med. 1975 May;149(1):302-6 PMID: 1144444
  18. Defects in mouse mammary gland development caused by conditional haploinsufficiency of Patched-1.
    Development. 1999 Nov;126(22):5181-93 PMID: 10529434
  19. Treatment of medulloblastoma with hedgehog pathway inhibitor GDC-0449.
    N Engl J Med. 2009 Sep 17;361(12):1173-8 PMID: 19726761
  20. The Hedgehog-binding proteins Gas1 and Cdo cooperate to positively regulate Shh signaling during mouse development.
    Genes Dev. 2007 May 15;21(10):1244-57 PMID: 17504941
  21. Decoding cilia function: defining specialized genes required for compartmentalized cilia biogenesis.
    Cell. 2004 May 14;117(4):527-39 PMID: 15137945
  22. Unmasking of epigenetically silenced genes reveals DNA promoter methylation and reduced expression of PTCH in breast cancer.
    Breast Cancer Res Treat. 2007 Oct;105(2):139-55 PMID: 17295047
  23. Altered neural cell fates and medulloblastoma in mouse patched mutants.
    Science. 1997 Aug 22;277(5329):1109-13 PMID: 9262482
  24. Mutations of the PATCHED gene in several types of sporadic extracutaneous tumors.
    Cancer Res. 1997 Jun 15;57(12):2369-72 PMID: 9192811
  25. Smoothened signal transduction is promoted by G protein-coupled receptor kinase 2.
    Mol Cell Biol. 2006 Oct;26(20):7550-60 PMID: 16908539
  26. Pathways of signal transduction employed by vertebrate Hedgehogs.
    Biochem J. 2007 May 1;403(3):369-79 PMID: 17419683
  27. Sonic hedgehog guides axons through a noncanonical, Src-family-kinase-dependent signaling pathway.
    Neuron. 2009 May 14;62(3):349-62 PMID: 19447091
  28. Hedgehog signaling pathway is a new therapeutic target for patients with breast cancer.
    Cancer Res. 2004 Sep 1;64(17):6071-4 PMID: 15342389
  29. GRKs and beta-arrestins: roles in receptor silencing, trafficking and signaling.
    Trends Endocrinol Metab. 2006 May-Jun;17(4):159-65 PMID: 16595179
  30. The primary cilium at the crossroads of mammalian hedgehog signaling.
    Curr Top Dev Biol. 2008;85:225-60 PMID: 19147008
  31. A two-hit model for developmental defects in Gorlin syndrome.
    Nat Genet. 1996 Jan;12(1):85-7 PMID: 8528259
  32. Integration of Notch and Wnt signaling in hematopoietic stem cell maintenance.
    Nat Immunol. 2005 Mar;6(3):314-22 PMID: 15665828
  33. Tissue repair and stem cell renewal in carcinogenesis.
    Nature. 2004 Nov 18;432(7015):324-31 PMID: 15549094
  34. G protein Galphai functions immediately downstream of Smoothened in Hedgehog signalling.
    Nature. 2008 Dec 18;456(7224):967-70 PMID: 18987629
  35. Sonic hedgehog is an autocrine viability factor for myofibroblastic hepatic stellate cells.
    J Hepatol. 2008 Jan;48(1):98-106 PMID: 18022723
  36. Intraflagellar transport is required in Drosophila to differentiate sensory cilia but not sperm.
    Curr Biol. 2003 Sep 30;13(19):1679-86 PMID: 14521833
  37. Patched1 interacts with cyclin B1 to regulate cell cycle progression.
    EMBO J. 2001 May 1;20(9):2214-23 PMID: 11331587
  38. The hedgehog signaling pathway: where did it come from?
    PLoS Biol. 2009 Jun 30;7(6):e1000146 PMID: 19564910
  39. Sertoli cell signaling by Desert hedgehog regulates the male germline.
    Curr Biol. 1996 Mar 1;6(3):298-304 PMID: 8805249
  40. Inhibition of Hedgehog signaling by direct binding of cyclopamine to Smoothened.
    Genes Dev. 2002 Nov 1;16(21):2743-8 PMID: 12414725
  41. The cell surface membrane proteins Cdo and Boc are components and targets of the Hedgehog signaling pathway and feedback network in mice.
    Dev Cell. 2006 May;10(5):647-56 PMID: 16647304
  42. The patched polymorphism Pro1315Leu (C3944T) may modulate the association between use of oral contraceptives and breast cancer risk.
    Int J Cancer. 2003 Mar 1;103(6):779-83 PMID: 12516098
  43. Mutations affecting segment number and polarity in Drosophila.
    Nature. 1980 Oct 30;287(5785):795-801 PMID: 6776413
  44. No evidence for the H133Y mutation in SONIC HEDGEHOG in a collection of common tumour types.
    Oncogene. 1998 Feb 26;16(8):1091-3 PMID: 9519883
  45. Constitutive activation of smoothened (SMO) in mammary glands of transgenic mice leads to increased proliferation, altered differentiation and ductal dysplasia.
    Development. 2007 Mar;134(6):1231-42 PMID: 17287253
  46. Hedgehog proteins activate pro-angiogenic responses in endothelial cells through non-canonical signaling pathways.
    Cell Cycle. 2010 Feb 1;9(3):570-79 PMID: 20081366
  47. The Hedgehog signalling pathway as a therapeutic target in early breast cancer development.
    Expert Opin Ther Targets. 2009 Sep;13(9):1095-103 PMID: 19659449
  48. The consensus coding sequences of human breast and colorectal cancers.
    Science. 2006 Oct 13;314(5797):268-74 PMID: 16959974
  49. Comparative gene expression profile analysis of GLI and c-MYC in an epithelial model of malignant transformation.
    Cancer Res. 2002 Oct 15;62(20):5867-73 PMID: 12384550
  50. Paracrine Hedgehog signaling in stomach and intestine: new roles for hedgehog in gastrointestinal patterning.
    Gastroenterology. 2009 Aug;137(2):618-28 PMID: 19445942
  51. Divergence of hedgehog signal transduction mechanism between Drosophila and mammals.
    Dev Cell. 2006 Feb;10(2):177-86 PMID: 16459297
  52. The hedgehog pathway transcription factor GLI1 promotes malignant behavior of cancer cells by up-regulating osteopontin.
    J Biol Chem. 2009 Aug 21;284(34):22888-97 PMID: 19556240
  53. Cilia and Hedgehog responsiveness in the mouse.
    Proc Natl Acad Sci U S A. 2005 Aug 9;102(32):11325-30 PMID: 16061793
  54. The Hedgehog signaling pathway plays an essential role in maintaining the CD44+CD24-/low subpopulation and the side population of breast cancer cells.
    Anticancer Res. 2009 Jun;29(6):2147-57 PMID: 19528475
  55. High resolution genomic analysis of sporadic breast cancer using array-based comparative genomic hybridization.
    Breast Cancer Res. 2005;7(6):R1186-98 PMID: 16457699
  56. An orally bioavailable small-molecule inhibitor of Hedgehog signaling inhibits tumor initiation and metastasis in pancreatic cancer.
    Mol Cancer Ther. 2008 Sep;7(9):2725-35 PMID: 18790753
  57. The teratogenic Veratrum alkaloid cyclopamine inhibits sonic hedgehog signal transduction.
    Development. 1998 Sep;125(18):3553-62 PMID: 9716521
  58. The patched/hedgehog/smoothened signalling pathway in human breast cancer: no evidence for H133Y SHH, PTCH and SMO mutations.
    Eur J Cancer. 1999 May;35(5):711-3 PMID: 10505029
  59. The hedgehog signaling molecule Gli2 induces parathyroid hormone-related peptide expression and osteolysis in metastatic human breast cancer cells.
    Cancer Res. 2006 Aug 1;66(15):7548-53 PMID: 16885353
  60. Inhibition of neuroepithelial patched-induced apoptosis by sonic hedgehog.
    Science. 2003 Aug 8;301(5634):843-6 PMID: 12907805
  61. Autocrine and paracrine Shh signaling are necessary for tooth morphogenesis, but not tooth replacement in snakes and lizards (Squamata).
    Dev Biol. 2010 Jan 1;337(1):171-86 PMID: 19850027
  62. Next stop, the twilight zone: hedgehog network regulation of mammary gland development.
    J Mammary Gland Biol Neoplasia. 2004 Apr;9(2):165-81 PMID: 15300011
  63. Reciprocal intraepithelial interactions between TP63 and hedgehog signaling regulate quiescence and activation of progenitor elaboration by mammary stem cells.
    Stem Cells. 2008 May;26(5):1253-64 PMID: 18292212
  64. Transcriptional profiling of the Sonic hedgehog response: a critical role for N-myc in proliferation of neuronal precursors.
    Proc Natl Acad Sci U S A. 2003 Jun 10;100(12):7331-6 PMID: 12777630
  65. The Gli2 transcription factor is required for normal mouse mammary gland development.
    Dev Biol. 2001 Oct 1;238(1):133-44 PMID: 11783999
  66. Targeted expression of GLI1 in the mammary gland disrupts pregnancy-induced maturation and causes lactation failure.
    J Biol Chem. 2007 Dec 7;282(49):36090-101 PMID: 17928300
  67. Smoothened activates Galphai-mediated signaling in frog melanophores.
    J Biol Chem. 2000 Aug 25;275(34):26322-7 PMID: 10835429
  68. Gli2 and Gli3 localize to cilia and require the intraflagellar transport protein polaris for processing and function.
    PLoS Genet. 2005 Oct;1(4):e53 PMID: 16254602
  69. Patched1 functions as a gatekeeper by promoting cell cycle progression.
    Cancer Res. 2006 Feb 15;66(4):2081-8 PMID: 16489008
  70. The effect of pertussis toxin on zebrafish development: a possible role for inhibitory G-proteins in hedgehog signaling.
    Dev Biol. 1998 Feb 15;194(2):166-71 PMID: 9501021
  71. Paracrine Hedgehog signaling in cancer.
    Cancer Res. 2009 Aug 1;69(15):6007-10 PMID: 19638582
  72. Hedgehog signaling and Bmi-1 regulate self-renewal of normal and malignant human mammary stem cells.
    Cancer Res. 2006 Jun 15;66(12):6063-71 PMID: 16778178
  73. Hedgehog signaling pathway is activated in diffuse large B-cell lymphoma and contributes to tumor cell survival and proliferation.
    Leukemia. 2010 May;24(5):1025-36 PMID: 20200556
  74. Role of Notch signaling in cell-fate determination of human mammary stem/progenitor cells.
    Breast Cancer Res. 2004;6(6):R605-15 PMID: 15535842
  75. The heterotrimeric protein Go is required for the formation of heart epithelium in Drosophila.
    J Cell Biol. 1999 May 31;145(5):1063-76 PMID: 10352022
  76. A paracrine requirement for hedgehog signalling in cancer.
    Nature. 2008 Sep 18;455(7211):406-10 PMID: 18754008
  77. Small-molecule inhibitors of the hedgehog signaling pathway as cancer therapeutics.
    ChemMedChem. 2010 Apr 6;5(4):500-12 PMID: 20229564
  78. G proteins in development.
    Nat Rev Mol Cell Biol. 2005 Sep;6(9):689-701 PMID: 16231420
  79. Hedgehog signaling.
    J Cell Sci. 2007 Jan 1;120(Pt 1):3-6 PMID: 17182898
  80. Expression of Indian Hedgehog signaling molecules in breast cancer.
    J Cancer Res Clin Oncol. 2009 Feb;135(2):235-40 PMID: 18636275
  81. Hedgehog beyond medulloblastoma and basal cell carcinoma.
    Biochim Biophys Acta. 2010 Apr;1805(2):181-208 PMID: 20085802
  82. The G protein-coupled receptor regulatory kinase GPRK2 participates in Hedgehog signaling in Drosophila.
    Proc Natl Acad Sci U S A. 2007 May 8;104(19):7963-8 PMID: 17483466
  83. Vertebrate Smoothened functions at the primary cilium.
    Nature. 2005 Oct 13;437(7061):1018-21 PMID: 16136078
  84. Gas1 extends the range of Hedgehog action by facilitating its signaling.
    Genes Dev. 2007 May 15;21(10):1231-43 PMID: 17504940
  85. Signaling from Smo to Ci/Gli: conservation and divergence of Hedgehog pathways from Drosophila to vertebrates.
    Development. 2006 Jan;133(1):3-14 PMID: 16339192
  86. Integrative genomic analyses on GLI1: positive regulation of GLI1 by Hedgehog-GLI, TGFbeta-Smads, and RTK-PI3K-AKT signals, and negative regulation of GLI1 by Notch-CSL-HES/HEY, and GPCR-Gs-PKA signals.
    Int J Oncol. 2009 Jul;35(1):187-92 PMID: 19513567
  87. Decoding the Hedgehog signal in animal development.
    Cell Mol Life Sci. 2006 Jun;63(11):1249-65 PMID: 16596340
  88. In vivo functions of the patched protein: requirement of the C terminus for target gene inactivation but not Hedgehog sequestration.
    Mol Cell. 2000 Aug;6(2):467-78 PMID: 10983992
  89. Cyclopamine, a steroidal alkaloid, disrupts development of cranial neural crest cells in Xenopus.
    Dev Dyn. 1995 Mar;202(3):255-70 PMID: 7780175
  90. Hedgehog signaling in mouse mammary gland development and neoplasia.
    J Mammary Gland Biol Neoplasia. 2001 Jan;6(1):53-66 PMID: 11467452
  91. Communicating with Hedgehogs.
    Nat Rev Mol Cell Biol. 2005 Apr;6(4):306-17 PMID: 15803137
  92. Gli3-mediated repression of Hedgehog targets is required for normal mammary development.
    Development. 2006 Sep;133(18):3661-70 PMID: 16914490
  93. Cyclopamine inhibition of human breast cancer cell growth independent of Smoothened (Smo).
    Breast Cancer Res Treat. 2009 Jun;115(3):505-21 PMID: 18563554
  94. Spatial regulation of a zebrafish patched homologue reflects the roles of sonic hedgehog and protein kinase A in neural tube and somite patterning.
    Development. 1996 Sep;122(9):2835-46 PMID: 8787757
  95. Hedgehog signal transduction: signal integration and cross talk in development and cancer.
    Cell Cycle. 2006 Aug;5(15):1612-5 PMID: 16880744
  96. Development of mammary tumors by conditional expression of GLI1.
    Cancer Res. 2009 Jun 1;69(11):4810-7 PMID: 19458072
  97. Inhibition of the hedgehog pathway in advanced basal-cell carcinoma.
    N Engl J Med. 2009 Sep 17;361(12):1164-72 PMID: 19726763
  98. Mammary development in the embryo and adult: a journey of morphogenesis and commitment.
    Development. 2008 Mar;135(6):995-1003 PMID: 18296651
  99. GLI1 is regulated through Smoothened-independent mechanisms in neoplastic pancreatic ducts and mediates PDAC cell survival and transformation.
    Genes Dev. 2009 Jan 1;23(1):24-36 PMID: 19136624
  100. Development of the human breast.
    Maturitas. 2004 Sep 24;49(1):2-15 PMID: 15351091
  101. Activation of heterotrimeric G proteins by Smoothened.
    Proc Natl Acad Sci U S A. 2006 Aug 15;103(33):12607-12 PMID: 16885213
  102. Development. Longing for ligand: hedgehog, patched, and cell death.
    Science. 2003 Aug 8;301(5634):774-6 PMID: 12907783
  103. The Shh-independent activator function of the full-length Gli3 protein and its role in vertebrate limb digit patterning.
    Dev Biol. 2007 May 15;305(2):460-9 PMID: 17400206
  104. Developmental roles and clinical significance of hedgehog signaling.
    Curr Top Dev Biol. 2003;53:1-114 PMID: 12509125
  105. The G12 family of heterotrimeric G proteins and Rho GTPase mediate Sonic hedgehog signalling.
    Genes Cells. 2004 Jan;9(1):49-58 PMID: 14723707
Article Info
Journal
Current drug targets
Abbr.
Curr Drug Targets
ISSN
1873-5592
Published
2010-09-00
Pages
1103-11
Language
English
Region
United Arab Emirates
NLM ID
100960531
PMCID
PMC5499530
Subset
IM
Grants
NCI NIH HHS · P01 CA030195 · United States
NCI NIH HHS · R01 CA127857 · United States
NCI NIH HHS · R01 CA127857-01A1 · United States
Analysis Services
Analysis Services

Contact

No. 2 Wenbo Road, Zhangqiu District, Jinan, Shandong

Qilu Normal University · Genelibs Bioinformatics Lab

750 Shunhua Rd, Jinan

2F, Bldg F, University Science Park

Tel: 0531-88819269

WeChat Official Account

Follow our WeChat subscription account for real-time updates and the latest in medical and biological research.


Business Email

E-mail: [email protected]