TY  - JOUR
A1  - Riquelme, Paloma
A1  - Haarer, Jan
A1  - Kammler, Anja
A1  - Walter, Lisa
A1  - Tomiuk, Stefan
A1  - Ahrens, Norbert
A1  - Wege, Anja K.
A1  - Goecze, Ivan
A1  - Zecher, Daniel
A1  - Banas, Bernhard
A1  - Spang, Rainer
A1  - Fändrich, Fred
A1  - Lutz, Manfred B.
A1  - Sawitzki, Birgit
A1  - Schlitt, Hans J.
A1  - Ochando, Jordi
A1  - Geissler, Edward K.
A1  - Hutchinson, James A.
T1  - TIGIT\(^+\) iTregs elicited by human regulatory macrophages control T cell immunity
JF  - Nature Communications
N2  - Human regulatory macrophages (Mreg) have shown early clinical promise as a cell-based adjunct immunosuppressive therapy in solid organ transplantation. It is hypothesised that recipient CD4(+) T cell responses are actively regulated through direct allorecognition of donor-derived Mregs. Here we show that human Mregs convert allogeneic CD4(+) T cells to IL-10-producing, TIGIT(+) FoxP3(+)-induced regulatory T cells that non-specifically suppress bystander T cells and inhibit dendritic cell maturation. Differentiation of Mreg-induced Tregs relies on multiple non-redundant mechanisms that are not exclusive to interaction of Mregs and T cells, including signals mediated by indoleamine 2,3-dioxygenase, TGF-beta, retinoic acid, Notch and progestagen-associated endometrial protein. Preoperative administration of donor-derived Mregs to living-donor kidney transplant recipients results in an acute increase in circulating TIGIT(+) Tregs. These results suggest a feed-forward mechanism by which Mreg treatment promotes allograft acceptance through rapid induction of direct-pathway Tregs.
KW  - Allotransplantation
KW  - Immunosuppression
KW  - Monocytes and macrophages
KW  - Regulatory T cells
Y1  - 2018
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226321
VL  - 9
IS  - 9
ER  - 
TY  - JOUR
A1  - Bala, Margarita
A1  - Ronchi, Cristina L.
A1  - Pichl, Josef
A1  - Wild, Vanessa
A1  - Kircher, Stefan
A1  - Allolio, Bruno
A1  - Hahner, Stefanie
T1  - Suspected metastatic adrenocortical carcinoma revealing as pulmonary Kaposi sarcoma in adrenal Cushing’s syndrome
N2  - Background

Kaposi sarcoma (KS) is a malignant disease most commonly diagnosed in the setting of a human immunodeficiency virus (HIV) infection and in patients receiving immunosuppressive treatment. Pulmonary KS has never been reported in association with endogenous Cushing’s syndrome (CS).

Case presentation

A 60-year-old woman presented with symptoms and signs of CS. Adrenal CS was confirmed by standard biochemical evaluation. Imaging revealed a right adrenal lesion (diameter 3.5 cm) and multiple pulmonary nodules, suggesting a cortisol-secreting adrenal carcinoma with pulmonary metastases. The patient underwent right adrenalectomy with a pathohistological diagnosis of an adrenal adenoma. Subsequent thoracoscopic wedge resection of one lung lesion revealed pulmonary KS with positive immunostaining for human herpes virus 8 (HHV-8). HIV-serology was negative. Hydrocortisone replacement was initiated for secondary adrenal insufficiency after surgery. Post-operative follow up imaging showed complete remission of all KS-related pulmonary nodules solely after resolution of hypercortisolism.

Conclusion

KS may occur in the setting of endogenous CS and may go into remission after cure of hypercortisolism without further specific treatment.
KW  - Cushing’s syndrome
KW  - Kaposi sarcoma
KW  - Immunosuppression
KW  - Hypercortisolism
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-110553
ER  -