background: recently there is a high tendency among exotic pet owners for keeping hedgehogs. this mammal can transfer some significant zoonotic patho-gens to human. hence, the present study was conducted for the first time to pre-pare a list of helminth parasites of hedgehogs ( erinaceus concolor ) in north of iran. methods: ten (four males and six females) road killed hedgehogs were collected ...

background : hedgehogs are small, nocturnal mammals which become popular in the world and have important role in transmission of zoonotic agents. thus, the present study aimed to survey ectoparasite infestation from april 2010 to december 2011 in urban and suburban parts of urmia and tabriz cities, northwest of iran. methods : a total number of 84 hedgehogs (40 females and 44 males) were examin...

In the Drosophila wing, Hedgehog is made by cells of the posterior compartment and acts as a morphogen to pattern cells of the anterior compartment. High Hedgehog levels instruct L3/4 intervein fate, whereas lower levels instruct L3 vein fate. Transcriptional responses to Hedgehog are mediated by the balance between repressor and activator forms of Cubitus interruptus, CiR and CiA. Hedgehog reg...

Background and aim: Basal cell carcinoma (BCC) is the most common cancer in humans. Activation of Hedgehog (Hh) signal has a key role in development of BCC. The end result of Hedgehog signal are Gli proteing. Gli 1 is a member of this family which activates DNA transcription. Previous studies showed increased expression of Gli 1 in BCC.Materials and methods: In this study 38 pathologic samples ...

OBJECTIVES Androgen-deprivation therapy effectively shrinks hormone-naïve prostate cancer, both in the prostate and at sites of distant metastasis. However prolonged androgen deprivation generally results in relapse and androgen-independent tumour growth, which is inevitably fatal. The molecular events that enable prostate cancer cells to proliferate in reduced androgen conditions are poorly un...

In addition to its role in embryonic development, the Hedgehog pathway has been shown to be an active participant in cancer development, progression, and metastasis. Although this pathway is activated by autocrine signaling by Hedgehog ligands, it can also initiate paracrine signaling with cells in the microenvironment. This creates a network of Hedgehog signaling that determines the malignant ...

Hedgehog signaling is known to regulate tissue morphogenesis and cell differentiation in a dose-dependent manner. Loss of Indian hedgehog (Ihh) results in reduction in pancreas size, indicating a requirement for hedgehog signaling during pancreas development. By contrast, ectopic expression of sonic hedgehog (Shh) inhibits pancreatic marker expression and results in transformation of pancreatic...

The hedgehog (Hh) signaling pathway plays a central role during embryonic development, and its aberrant activation has been implicated in the development and progression of several human cancers. Major efforts toward the identification of chemical modulators of the hedgehog pathway have yielded several antagonists of the GPCR-like smoothened receptor. In contrast, potent inhibitors of the sonic...

For homeostasis, lingual taste papilla organs require regulation of epithelial cell survival and renewal, with sustained innervation and stromal interactions. To investigate a role for Hedgehog/GLI signaling in adult taste organs we used a panel of conditional mouse models to manipulate GLI activity within epithelial cells of the fungiform and circumvallate papillae. Hedgehog signaling suppress...

H edgehog protein and its receptor are made for each other, but even this perfect couple needs a little help to get together. Li et al. (1) reveal that a proteoglycan plays cupid for the molecules and sparks signal transduction through the Hedgehog pathway, a mechanism exploited by a type of childhood cancer. During development, Hedgehog proteins are sculptors, helping to mold the embryo’s limb...