Table 3. Expression of immunohistochemical markers in basal versus suprabasal layers.

		Non-stored	Quantum 286 4 days	MEM 4 days	Quantum 286 7 days	MEM 7 days
ΔNP63α	sb 1	(+) 2	(+)	(+)	(+)	(+)
	b 3	+ 4	+	+	+	+
p63	sb	+++ 5	+++	+++	+++	+++
	b	++++ 6	++++	++++	++++	++++
Bmi-1	sb	+	0 7	0	0	0
	b	+	+	+	+	+
C/EBP∂	sb	+++(+) 8	+++	+++	+++	+++
	b	++++	++++	++++	++++	++++
ABCG2	sb	++++	++++	++++	+++	++++
	b	++++	++++	++++	+++(+)	++++
Cx43	sb	++++	++++	++++	++++	++++
	b	++++	++++	++++	++++	++++
K19	sb	+++(+)	+++	+++(+)	+++(+)	+++(+)
	b	++++	++++	++++	++++	++++
K3	sb	+(+) 9	+(+)	++ 10	++(+)	++(+)
	b	+	+	+	++	++
PCNA	sb	+++(+)	+++	+++(+)	+++	+++
	b	++++	++++	++++	++++	++++
Caspase-3	sb	(+)	(+)	(+)	+	(+)
	b	(+)	(+)	(+)	+	(+)

¹ sb = supra-basal

² (+) = mostly detectable in < ¼ of cells, not detectable in some sections

³ b = basal

⁴ + = detectable in < ¼ of cells

⁵ +++ = detectable in ½—¾ of cells

⁶ ++++ = detectable in > ¾ of cells

⁷ 0 = not detectable

⁸ +++(+) = mostly detectable in > ¾ of cells, detectable in ½—¾ of cells for some sections

⁹ +(+) = mostly detectable in ¼—½ of cells, detectable in < ¼ of cells for some sections

¹⁰ ++ = detectable in ¼—½ of cells.