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. Author manuscript; available in PMC: 2018 Feb 8.
Published in final edited form as: J Immunobiol. 2017 Dec 11;2(4):135. doi: 10.4172/2476-1966.1000135

Table 2.

Summary data table of glucagon and TNF alpha effects.

(i) ORO staining density in 6 d insulin treated cell subsequently exposed to glucagon or TNF alpha
average percentage ORO+ cell area, normalized to starting percentage, triplicate z discs from n=50 cells
Time Course Dose Response
Time (d) Control Glucagon TNF alpha 9 d Glucagon ORO 9 d TNF alpha ORO
0 100 100 100 0 100 0 100
1 96 96 89 100 ng/mL 92*** 0.1 nM 101
2 98 92** 66 1 µg/mL 81*** 1 nM 96
4 101 84* 42 10 µg/mL 74*** 10 nM 77**
8 96 80** 38 100 nM 52**
12 100 79*** N.D. 1 µM 41***
p value relative to day 0, * p<0.05; **, p<0.01; ***, p<0.001; no symbol, >0.05. p value relative to zero dose 0, * p<0.05; **, p< 0.01; ***, p<0.001; no symbol, p>0.05.
(ii) Reversal of steatosis
average percentage ORO+ cell area, triplicate z discs from n=50 cells ± SD, cells exposed to 6 d insulin then 9 d glucagon or TNF alpha)
6 d insulin+9 day vehicle +9 d glucagon +9 d TNF alpha
ORO% % reversal ORO% % reversal ORO% % reversal
100 −3 100 −11** 100 −31***
(iii) LTC4 secretion
pg/1million cells, in response to IgE (l µg/ml 16h then 250 ng/ml KLH-DNP ± SD
6 d insulin+9 day vehicle +9 d glucagon +9 d TNF alpha
220 ± 11.2 198 ± 13.6* 106 ± 21.4***
(iv) LTC4 secretion
pg/1 million cells, in response to IgE (1µg/ml 16 h) then KLH-DNP ± SD
(v) LB and SG relative abundance in response to TNF alpha treatment
ORO+ % cell area and anti-tryptase+ structures/cell, mean o n=50 cells ± SD
KLH-DNP (ng/nl) vehicle 6 d TNF alpha control 6 d TNF alpha
0 13.3 12.4 ORO+% cell area
20 15.6 19.3 15.6 7.7**
200 204.4 164.7** anti-tryptase+ structures/cell
2000 309.6 212.5** 16 ± 4 13 ± 9
(vi) Degranulation responses
Betahexoseaminidase release as % of PMA-Ionomyin stimulated release (% max)
6 d insulin+9 day vehicle +9 d glucagon +9 d TNF alpha
66.8% 64.9% 63.7%

(i) ORO staining density in 6 d insulin treated cells subsequently exposed to glucagon or TNF alpha. LB content was assessed using quantification of ORO-positive area in triplicate z discs from 50 cells per point. Stimuli comprised 6 day exposure to insulin (10 µg/ml) for 6 days followed by 9 day exposure (with matched passaging) to glucagon (10 µg/ml) or TNF alpha (250 nM) (unless concentrations otherwise specified). ORO-positive area at initial timepoint or zero dose was treated as 100%, then effects of stimuli were expressed as % normalized to the starting value. (ii) Comparison of the percentage reversal of 6 d insulin-induced steatosis at 9 day exposure to vehicle, versus glucagon (10 µg/ml) or TNF alpha (250 nM). (iii) Leukotriene C4 (LTC4) release in response to antigenic stimulation of the RBL2H3 via FcεRI (1 µg/ml IgE anti-DNP for 16 h followed by 250 ng/ml KLH-DNP) in cells exposed to 6 d insulin then 9 d vehicle, glucagon or TNF alpha. (iv) Leukotriene C4 (LTC4) release in response to a dose response of antigenic stimulation of the RBL2H3 via FcεRI in cells treated with no insulin, but 6 d vehicle or TNF alpha as indicated. (v) LB and SG abundance measured in cells treated with 6 d insulin or 6 d TNF alpha by ORO-positive z disc area (LB) and major anti-tryptase positive structures of >180 nM diameter and not co-localized either ER-or Golgi-specific stains (SG). (vi) Betahexoseaminidase release in response to PMA/Ionomycin expressed as percentage of maximal release in cells exposed to 6 d insulin followed by 9 d vehicle, 9 d glucagon or 9 d TNF alpha.