title: 1,25-Dihydroxy vitamin D3: can it be an effective therapeutic option for aggressive fibromatosis.
abstract: Aggressive fibromatosis (AF), also known as desmoid tumor is a monoclonal fibroblastic proliferation in a collagen matrix that arises in musculoaponeurotic structures. Though considered as benign, they are locally invasive and their propensity for recurrence after conservative surgery is well documented. Addition of postoperative adjuvant radiotherapy produces higher local control rates, although recurrence rates are still high in patients with positive margins. The antineoplastic activity of vitamin D has been demonstrated both in vitro and in vivo models of several cancers. The proposed mechanisms for antineoplastic activity include inhibition of proliferation associated with cell cycle arrest, induction of apoptosis and reduction in invasiveness and angiogenesis. It has also been shown that vitamin D has a negative impact on collagen homeostasis by inhibiting the formation and increasing its degradation. Since vitamin D has an antineoplastic activity and negative effect on collagen synthesis and deposition, it is proposed that 1,25-dihydroxy vitamin D3 can be a right therapeutic option for the management of desmoid tumors.
authors.affiliation: Department of Radiation Oncology, Faculty of Medicine, Hacettepe University, 06100 Ankara, Turkey. fyildiz@hacettepe.edu.tr
authors.forename: F
authors.initials: F
authors.lastname: Yildiz
authors.forename: A
authors.initials: A
authors.lastname: Kars
authors.forename: M
authors.initials: M
authors.lastname: Cengiz
authors.forename: O
authors.initials: O
authors.lastname: Yildiz
authors.forename: S
authors.initials: S
authors.lastname: Akyürek
authors.forename: U
authors.initials: U
authors.lastname: Selek
authors.forename: G
authors.initials: G
authors.lastname: Ozyigit
authors.forename: I L
authors.initials: IL
authors.lastname: Atahan
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D002117:Calcitriol / Q000627:therapeutic use*; D003094:Collagen / Q000378:metabolism; D005350:Fibroma / Q000188:drug therapy*; D006801:Humans
chemical_list: D000970:Antineoplastic Agents; D003094:Collagen; D002117:Calcitriol