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Table 2 Markers of Inflammation and Immunoreactivity in Cerebral Arteries and Arterioles in CADASIL

From: ER stress induced immunopathology involving complement in CADASIL: implications for therapeutics

Marker (antibody, source)

Description and Source

Change in marker

CADASIL

Controls

Disease Controls†

(SVD)

(0, +(1),-++(2), +++(3) score of immunoreactivities or % (SD) of vessels positive for marker)

CADASIL Arteriopathy

SMA

α-smooth muscle actin (monoclonal, 1:3,000; Sigma)

↓Cytoskeletal component

+++

+

+++

Fractin

Actin filament fragment (polyclonal, 1:100, gift from Dr

↑ECM

+++

+

+++

Medin

Smooth muscle protein (polyclonal, 1:100, gift from Dr

↑ECM

+++

+

+++

GLUT1

Glucose Transporter 1 (polyclonal, 1:1,000; Thermo Scientific)

↓Endothelial cells

++

+

++

COL1

Collagen I (polyclonal,1:1,000; Dako)

↑ECM

+++

+

++

COL3

Collagen III (polyclonal, 1:1,000; Dako)

↑ECM

+++

+

++

COL4

Collagen IV (polyclonal, 1:1,000, Sigma)

↑ECM

+++

+

++

Fibrinogen

Fibrinogen (polyclonal, 1:2,000; Dako)

↑Plasma protein

++

+

+++

Perivascular microglia/macrophages

CD45

CD45 (monoclonal, 1:1,000; Dako)

↑Microglial/macrophage cells

+++

+

+

CD68

CD68 (monoclonal, 1:400, Clone PG-M1, DAKO)

↑Microglial/macrophage cells

+++

++

++

CD163

CD163 (monoclonal, 1:1,000; Dako)

↑Macrophage cells

+++

-

+

Iba-1

Iba-1 (polyclonal, 1:1,000, 66827-1-Ig, Proteintech)

Microglial/macrophage cells

+++

+

++

ER Stress proteins, UPS and cell receptors

HSP70

Heat shock protein 70 (polyclonal, 1:1,000; Dako)

Punctate deposits in arteriolar wall

+++

+

+

HSP27

Heat shock protein 27 (polyclonal, 1:1,000; Dako)

Degenerated VSMC in media

+++

+

+

GRP78

Glucose regulated protein 78 (polyclonal, 1:1,000; Dako)

Degenerated VSMC in media

+++

++

++

ERp78

ER stress-related proteins (CHOP and BIP/ERP78) (polyclonal, 1:100; Abcam)

Punctate deposits in arteriolar wall

+++

+

+++

Calnexin

ER stress marker (polyclonal, 1:100, AbCam)

Punctate deposits in arteriolar wall

+++

+

+++

Ubiquitin

Ubiquitin protease system (UPS) (polyclonal, 1:50; Dako)

Degenerated VSMC in media

++

+

++

ICAM-1

Intercellular Adhesion Molecule-1, CD54 (polyclonal, 1:300; Dako)

Reactivity in arteries and perivascular region

+++

+

++

Cleaved Caspase 3

Caspase-3 (polyclonal, 1:100, Cell Signalling Technology)

Punctate deposits in arteriolar wall

+++

++

+++

Serum Amyloid Protein

SAP (polyclonal, 1:1000; Dako)

Diffuse reactivity in arteries

+++

+

++

Cystatin C (CST3)

CST3 (polyclonal, 1:1000, Dako)

Diffuse reactivity in arteries

+++

+

++

NOTCH3 Signalling*

N3ECD

A1-1 ab to NOTCH3 extracellular domain (polyclonal, 1:2,500; NILS [65]

↑N3ECD deposition

85.8 (4.9)

0

0

N3ICD

C2 ab to NOCTCH3 intracellular domain (polyclonal, 1:1,000 ; NILS [31]

↔N3ICD

reactivity

85.4 (2.3)

82.3 (8.0)

80 (5.0)

Complement System

C1q

Complement C1q (polyclonal, 1:1,000; Dako)

 

0

0

0

C3d

Complement 3 (polyclonal, 1:1,000; Dako)

 

75.6 (5.2)

0

0

CFB

Complement Factor B (polyclonal, 1:1,000; Serotec)

 

69.8 (6.3)

0

0

C5-9

Complement C5-9 complex (polyclonal, 1:1,000; Dako)

 

63.9 (2.7)

0

0

  1. Table (last 3 columns) shows quantitative or semi-quantitative data derived from CADASIL cases, age-matched controls and cerebral SVD cases (as disease controls). Where percentages are not given, sections were scored from scale of 0 to 3, where + was designated as mild, ++ as moderate and +++ as frequent or abundant. Between 50–100 vessel profiles were viewed in each case involving arteries/arterioles in WM and overlying frontal cortex. Veins were avoided. †Vessels in three AD and PADMAL cases (age range 44–78 years) were also negative for complement. *Delta-1 and Jagged-1 were also examined. There was a tendency for increased activity in perivascular astrocytes (P > 0.05). Symbols: ↔, no change; ↑, increased; ↓, decreased or loss
  2. Abbreviations: ab, antibody; ECM, extracellular matrix; AD, Alzheimer’s disease; PADMAL, pontine autosomal dominant microangiopathy and leukoencephalopathy; SD, standard deviation; SVD, small vessel disease