hrp0089p1-p263 | Thyroid P1 | ESPE2018

Expression of ZnT8 Transporter in Thyroid Tissues from Patients with Immune and Non-Immune Thyroid Diseases

Bossowski Artur , Reszec Joanna , Polnik Dariusz , Gasowska Marta , Niklinska Wieslawa

Introduction: Zinc homeostasis is regulated by ZnT and Zip zinc transporters. Zinc transporter 8 (ZnT8) is localized in insulin containing secretory granule membrane and transports zinc from the cytosol into the vesicles. ZnT8 was identified on peripheral lymphocytes, in subcutaneous adipose tissue, in a pancreatic β-cells and extra-pancreatic endocrine glands including pituitary, adrenal and thyroid. Autoantibodies to the ZnT8 are detected in the majority of type 1 diabe...

hrp0092p1-421 | Thyroid (2) | ESPE2019

Zinc Transporter 8 (ZnT8) as a New Autoantigen in Thyroid Tissue – Preliminary Data

Bossowski Artur , Niklinska Wieslawa , Gasowska Marta , Polnik Dariusz , Szalecki Mieczyslaw , Miklosz Agnieszka , Chabowski Adrian , Reszec Joanna

Zinc (Zn) is a crucial trace mineral that regulates the expression and activation of biological molecules such as transcription factors, enzymes, adapters, channels, and growth factors, along with their receptors. Bioinformatics analysis of the human genome discloses that Zn may bind ~ 10% of all of the proteins found in the human organism. This remarkable finding highlights the physiological significance of Zn in molecules involved in cellular processes and thereby i...

hrp0086p1-p902 | Thyroid P1 | ESPE2016

Identification of Zinc Transporter ZnT8 in Thyroid Tissues from Children and Adolescents with Thyroid Nodular Hyperplasia

Bossowski Artur , Niklinska Wieslawa , Gasowska Marta , Goralczyk Aleksandra , Polnik Dariusz , Reszec Joanna

Background: Recent studies have revealed the presence of zinc and the expression of zinc transporter (ZnT) family members in most endocrine cell types. It has been demonstrated that the ZnT family plays an important role in the synthesis and secretion of different hormones. Furthermore, ZnT8Ab (zinc transporter-8 autoantibodies) together with GADAb (glutamic acid decarboxylase antibodies), IAA (insulin autoantibodies) and IA-2Ab (islet antigen-2 antibodies) are markers of auto...

hrp0084p3-811 | Endocrine Oncology | ESPE2015

Cushing’s Syndrome due to Ectopic ACTH Secretion by a Germline Tumour in the Cross-tail Area in a 7 Month Old Female Infant

Bossowski Artur , Kuzmicz Marta , Kitszel Anna , Polnik Dariusz , Savage Martin , Krawczuk-Rybak Maryna

Background: Ectopic ACTH syndrome is very rarely seen in infancy, usually occurring in older children.Case presentation: A female infant was born by Caesarean section (BW 4280 g) with congenital anal atresia and a large tumour surrounding the cross-tail region. CT imaging identified a heterogeneous pelvic mass (76×49×38 mm) below the sacrum. On day 1 of life, a sigmoid colostomy was established and at age 1 week, part of the tumour with the coc...

hrp0094p2-455 | Thyroid | ESPE2021

Expression of Zinc transporter 8 in thyroid tissues from patient with immune and non-immune thyroid diseases

Bossowski Artur , Niklinska Wiesława , Gasowska Marta , Polnik Dariusz , Szalecki Mieczysław , Mikłosz Agnieszka , Chabowski Adrian , Reszec Joanna

Introduction: Recent studies have revealed the presence of zinc and the expression of zinc transporter (ZnT) family members in most endocrine cell types. It was demonstrated that ZnT family plays an important role in the synthesis and secretion of many hormones. Moreover, recently ZnT8 was described as a newly islet autoantigen in type 1 diabetes.Materials and methods: We studied the expression of ZnT8 transporter in thyroid tissues from patients with im...