^ 1.01.1Ingham PW, Nakano Y, Seger C. Mechanisms and functions of Hedgehog signalling across the metazoa. Nature Reviews Genetics. June 2011, 12 (6): 393–406. PMID 21502959. S2CID 33769324. doi:10.1038/nrg2984.
^Alcedo J, Zou Y, Noll M. Posttranscriptional regulation of smoothened is part of a self-correcting mechanism in the Hedgehog signaling system. Molecular Cell. August 2000, 6 (2): 457–65. PMID 10983991. doi:10.1016/S1097-2765(00)00044-7.
^Apionishev S, Katanayeva NM, Marks SA, Kalderon D, Tomlinson A. Drosophila Smoothened phosphorylation sites essential for Hedgehog signal transduction. Nature Cell Biology. January 2005, 7 (1): 86–92. PMID 15592457. S2CID 5958856. doi:10.1038/ncb1210.
^Ho KS, Suyama K, Fish M, Scott MP. Differential regulation of Hedgehog target gene transcription by Costal2 and Suppressor of Fused. Development. March 2005, 132 (6): 1401–12. PMID 15750186. doi:10.1242/dev.01689.
^ 16.016.116.2Ingham PW, McMahon AP. Hedgehog signaling in animal development: paradigms and principles. Genes & Development. December 2001, 15 (23): 3059–87. PMID 11731473. doi:10.1101/gad.938601.
^Aspiras AC, Prasad R, Fong DW, Carlini DB, Angelini DR. Parallel reduction in expression of the eye development gene hedgehog in separately derived cave populations of the amphipod Gammarus minus. Journal of Evolutionary Biology. May 2012, 25 (5): 995–1001. PMID 22462461. S2CID 37541721. doi:10.1111/j.1420-9101.2012.02481.x.
^Banavali NK. The Mechanism of Cholesterol Modification of Hedgehog Ligand. Journal of Computational Chemistry. November 2019, 41 (6): 520–527. PMID 31823413. doi:10.1002/jcc.26097.
^Strutt H, Thomas C, Nakano Y, Stark D, Neave B, Taylor AM, Ingham PW. Mutations in the sterol-sensing domain of Patched suggest a role for vesicular trafficking in Smoothened regulation. Current Biology. April 2001, 11 (8): 608–13. PMID 11369206. S2CID 235311937. doi:10.1016/S0960-9822(01)00179-8.
^Zaphiropoulos PG, Undén AB, Rahnama F, Hollingsworth RE, Toftgård R. PTCH2, a novel human patched gene, undergoing alternative splicing and up-regulated in basal cell carcinomas. Cancer Research. February 1999, 59 (4): 787–92. PMID 10029063.
^Jeong J, McMahon AP. Growth and pattern of the mammalian neural tube are governed by partially overlapping feedback activities of the hedgehog antagonists patched 1 and Hhip1. Development. January 2005, 132 (1): 143–54. PMID 15576403. doi:10.1242/dev.01566.
^J.W. Saunders, M.T. Gasseling, Ectodermal-mesenchymal interactions in the origin of limb symmetry
R. Fleischmajer, R.E. Billingham (Eds.), Epithelial-Mesenchymal Interactions, Williams & Wilkins, Baltimore (1968), pp. 78-97
^SAUNDERS JW Jr. The proximo-distal sequence of origin of the parts of the chick wing and the role of the ectoderm. J Exp Zool. 1948 Aug;108(3):363-403. doi: 10.1002/jez.1401080304. PMID 18882505.
^Harfe BD, Scherz PJ, Nissim S, Tian H, McMahon AP, Tabin CJ. Evidence for an expansion-based temporal Shh gradient in specifying vertebrate digit identities. Cell. August 2004, 118 (4): 517–28. PMID 15315763. S2CID 16280983. doi:10.1016/j.cell.2004.07.024.
^Bhardwaj G, Murdoch B, Wu D, Baker DP, Williams KP, Chadwick K, Ling LE, Karanu FN, Bhatia M. Sonic hedgehog induces the proliferation of primitive human hematopoietic cells via BMP regulation. Nature Immunology. February 2001, 2 (2): 172–80. PMID 11175816. S2CID 27907370. doi:10.1038/84282.
^Paladini RD, Saleh J, Qian C, Xu GX, Rubin LL. Modulation of hair growth with small molecule agonists of the hedgehog signaling pathway. The Journal of Investigative Dermatology. October 2005, 125 (4): 638–46. PMID 16185261. doi:10.1111/j.0022-202X.2005.23867.x.
^Xie J, Murone M, Luoh SM, Ryan A, Gu Q, Zhang C, Bonifas JM, Lam CW, Hynes M, Goddard A, Rosenthal A, Epstein EH, de Sauvage FJ. Activating Smoothened mutations in sporadic basal-cell carcinoma. Nature. January 1998, 391 (6662): 90–2. Bibcode:1998Natur.391...90X. PMID 9422511. S2CID 205003240. doi:10.1038/34201.
^Cigna N, Farrokhi Moshai E, Brayer S, Marchal-Somme J, Wémeau-Stervinou L, Fabre A, et al. The hedgehog system machinery controls transforming growth factor-β-dependent myofibroblastic differentiation in humans: involvement in idiopathic pulmonary fibrosis. The American Journal of Pathology. December 2012, 181 (6): 2126–37. PMID 23031257. doi:10.1016/j.ajpath.2012.08.019.
^Nakamura M, Kubo M, Yanai K, Mikami Y, Ikebe M, Nagai S, Yamaguchi K, Tanaka M, Katano M. Anti-patched-1 antibodies suppress hedgehog signaling pathway and pancreatic cancer proliferation. Anticancer Research. 2007, 27 (6A): 3743–7. PMID 17970037.
^Hunt R, Bragina O, Drews M, Kasak L, Timmusk S, Valkna A, Kogerman P, Järvekülg L. Generation and characterization of mouse monoclonal antibody 5E1 against human transcription factor GLI3. Hybridoma. August 2007, 26 (4): 231–40. PMID 17725385. doi:10.1089/hyb.2007.0507.
^Stecca B, Mas C, Ruiz i Altaba A. Interference with HH-GLI signaling inhibits prostate cancer. Trends in Molecular Medicine. May 2005, 11 (5): 199–203. PMID 15882606. doi:10.1016/j.molmed.2005.03.004.
^Elamin MH, Shinwari Z, Hendrayani SF, Al-Hindi H, Al-Shail E, Khafaga Y, et al. Curcumin inhibits the Sonic Hedgehog signaling pathway and triggers apoptosis in medulloblastoma cells. Molecular Carcinogenesis. March 2010, 49 (3): 302–14. PMID 20025076. S2CID 31459213. doi:10.1002/mc.20604.
^Lee SW, Moskowitz MA, Sims JR. Sonic hedgehog inversely regulates the expression of angiopoietin-1 and angiopoietin-2 in fibroblasts. International Journal of Molecular Medicine. March 2007, 19 (3): 445–51. PMID 17273793. doi:10.3892/ijmm.19.3.445.
^Adolphe C, Hetherington R, Ellis T, Wainwright B. Patched1 functions as a gatekeeper by promoting cell cycle progression. Cancer Research. February 2006, 66 (4): 2081–8. PMID 16489008. doi:10.1158/0008-5472.CAN-05-2146.
^Athar M, Li C, Tang X, Chi S, Zhang X, Kim AL, Tyring SK, Kopelovich L, Hebert J, Epstein EH, Bickers DR, Xie J. Inhibition of smoothened signaling prevents ultraviolet B-induced basal cell carcinomas through regulation of Fas expression and apoptosis. Cancer Research. October 2004, 64 (20): 7545–52. PMID 15492281. doi:10.1158/0008-5472.CAN-04-1393.
^Clinical trial number NCT00636610 for "A Study of GDC-0449 (Hedgehog Pathway Inhibitor) With Concurrent Chemotherapy and Bevacizumab As First-Line Therapy for Metastatic Colorectal Cancer" at ClinicalTrials.gov
^Clinical trial number NCT01108094 for "Pilot Biomarker Trial to Evaluate the Efficacy of Itraconazole in Patients w/ Basal Cell Carcinomas" at ClinicalTrials.gov
^Nusse R. Wnts and Hedgehogs: lipid-modified proteins and similarities in signaling mechanisms at the cell surface. Development. November 2003, 130 (22): 5297–305. PMID 14530294. doi:10.1242/dev.00821.
^Varjosalo M, Li SP, Taipale J. Divergence of hedgehog signal transduction mechanism between Drosophila and mammals. Developmental Cell. February 2006, 10 (2): 177–86. PMID 16459297. doi:10.1016/j.devcel.2005.12.014.
^Huangfu D, Anderson KV. Signaling from Smo to Ci/Gli: conservation and divergence of Hedgehog pathways from Drosophila to vertebrates. Development. January 2006, 133 (1): 3–14. PMID 16339192. doi:10.1242/dev.02169.