Rare Diseases Symptoms Automatic Extraction

Apoptotic Cells Ameliorate Chronic Intestinal Inflammation by Enhancing Regulatory B-cell Function.

[severe combined immunodeficiency]

: Apoptosis is a programmed physiological death of unwanted cells, and handling of apoptotic cells (ACs) is thought to have profound effects on immune-mediated disorders. However, there is scant information regarding the role of ACs in intestinal inflammation, in which immune homeostasis is a major concern. To investigate this, we injected ACs into a severe combined immunodeficiency adoptive transfer model of chronic colitis in the presence and absence of cotransferred whole B or regulatory B cell (Breg)-depleted B cells. We also injected syngeneic ACs into AKR/N mice as a control and into milk fat globule-epidermal growth factor 8 knockout mice deficient of phagocytic function. Chronic colitis severity was significantly reduced in the AC as opposed to the phosphate-buffered saline group with cotransferred whole B cells. The AC-mediated effect was lost in the absence of B cells or presence of Breg-depleted B cells. In addition, ACs induced splenic B cells to secrete significantly increased levels of interleukin 10 in AKR/N mice but not milk fat globule-epidermal growth factor 8 knockout mice. Apoptotic leukocytes were induced by reactive oxygen species during granulocyte/monocyte apheresis therapy in rabbits and H2O2-induced apoptotic neutrophils ameliorated mice colitis. Our results indicate that ACs are protective only in the presence of B cells and phagocytosis of ACs induced interleukin 10 producing Bregs. Thus, the ameliorative effect seen in this study might have been exerted by AC-induced Bregs through increased production of the immunosuppressive cytokine interleukin 10, whereas an AC-mediated effect may contribute to the anti-inflammatory effect of granulocyte/monocyte apheresis as a novel therapeutic mechanism for inflammatory bowel disease.

Diseases presenting "growth factor" symptom

  • 22q11.2 deletion syndrome
  • achondroplasia
  • adrenal incidentaloma
  • aniridia
  • cadasil
  • cholangiocarcinoma
  • coats disease
  • dedifferentiated liposarcoma
  • dentin dysplasia
  • dentinogenesis imperfecta
  • dystrophic epidermolysis bullosa
  • esophageal carcinoma
  • esophageal squamous cell carcinoma
  • hodgkin lymphoma, classical
  • holt-oram syndrome
  • inclusion body myositis
  • kallmann syndrome
  • krabbe disease
  • liposarcoma
  • lymphangioleiomyomatosis
  • oculocutaneous albinism
  • oral submucous fibrosis
  • pleomorphic liposarcoma
  • primary effusion lymphoma
  • primary hyperoxaluria type 1
  • severe combined immunodeficiency
  • systemic capillary leak syndrome
  • von hippel-lindau disease
  • wolf-hirschhorn syndrome
  • x-linked adrenoleukodystrophy

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