Embryonal precursors of Wilms tumor

Adult cancers often arise from premalignant clonal expansions. Whether the same is true of childhood tumors has been unclear. To investigate whether Wilms tumor (nephroblastoma; a childhood kidney cancer) develops from a premalignant background, we examined the phylogenetic relationship between tumors and corresponding normal tissues. In 14 of 23 cases studied (61%), we found premalignant clonal expansions in morphologically normal kidney tissues that preceded tumor development. These clonal expansions were defined by somatic mutations shared between tumor and normal tissues but absent from blood cells. We also found hypermethylation of the H19 locus, a known driver of Wilms tumor development, in 58% of the expansions. Phylogenetic analyses of bilateral tumors indicated that clonal expansions can evolve before the divergence of left and right kidney primordia. These findings reveal embryonal precursors from which unilateral and multifocal cancers develop.
Source: ScienceNOW - Category: Science Authors: Tags: Development, Medicine, Diseases reports Source Type: news

Related Links:

ConclusionsOur study demonstrates the antitumor effect of IL-24 on endometrial cancer and shows that IL-24 may be a promising therapeutic gene for endometrial cancer gene therapy.Graphical abstract
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Publication date: Available online 20 January 2020Source: Clinica Chimica ActaAuthor(s): Hanna AntushevichAbstractFecal microbiota transplantation (FMT) is the introduction (transplantation) of gut microbiota obtained from the faeces of a healthy donor into the patient’s gastrointestinal tract. Most often, such therapy is used the treatment of gastrointestinal diseases caused by the activity of pathogenic or conditionally pathogenic microorganisms, however, recently an increasing number of studies have reported the use of fecal microbiota transplantation for the treatment of diseases such as metabolic syndrome, diabe...
Source: Clinica Chimica Acta - Category: Laboratory Medicine Source Type: research
More News: Cancer | Cancer & Oncology | Child Development | Childhood Cancer | Embryonal Carcinoma | Kidney Cancer | Science | Urology & Nephrology | Wilm's Tumor