BCL-2 gene expression of normal skin and cutaneous tumors

BCL-2 gene expression of normal skin and cutaneous tumors

JSfD Abstracts 13. Dermatol. Sci. 8 (1994) 54-88 145 148 E-cadherin associated expression in malignant with tumor progression Himaki Eguchi and T...

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JSfD Abstracts 13. Dermatol. Sci. 8 (1994) 54-88

145

148

E-cadherin associated

expression in malignant with tumor progression

Himaki Eguchi and Takashi Medkal Unhwsiiy

Horlkoshi,

E-cadherln (E-CD), a Ca*‘-dspendent the maintenance

of in&cellular

immunohiiochemically monocbnal expressbn

adhesion

HECD-1.

In primary

67% of tumor

(11 .l%) or intracellularly

lesbn

pallem

analyzed

melanoma

using

a

70% of tumor (33%). The

to dermis. In me&static

for E-CD,

expressing

potency

ether

melanomas. the

In me&static

of E-CD expressbn

the loss of adhesion

decwassd

of tumor

by

~~118. The

cells of the nest of LN was mom than that of oiher or@ans and the

intmcelblar

pattern was dominant

of E-CD expmssbn nwastauc

Thesedata suggest that

in the nesl of LN.

m@ht be an initlll

ESTABLISHMENT AND CHAWCI7%IZATION OF HTLV-lPOSITIVE B-CELL LINES, MTB-1 AND TJA T. Nagatani, T. Nishiyama, M. Miyazawa, T. Mat&, N. Baba, H. Nakajima. Department of Dermatology, Yokohama City University School of Medicine, Yokohama 236, Japan

plays a ma@r role in

(37%) or intracellularfy

(55.4%).

is

Sapporo

of E-CD was

of melanomas,

cells w8re posltiie

of calls wllh the intercellular

poslilve

molecules,

celfa deeply invadiw

melanomas,

25%. su~@esting

of Denatobgy,

of malignant

E-CD either lntercalkdariy

of E-CD was wakeron

melanoma

The expressbn

secllons

intsroellularly number

Department

junctions.

on tissue

antbob/

cells expressed

about

loss

event in ihe invasion and proliferation

of

melanomas.

New cell lines, designated MTB-1 and TJA, were established from peripheral blood lymphocytes of patients with cutaneous B-ceII lymphoms and acute-type adult T-cell leukemIwlymphoma, respectively. MTB-1 cell Linewas positive for CD19, CD20, HLA-DR, surface IgG and surface K light chain and negative for CD3, CD4, CD10 and CD13. TJA cell line was positive for CD19, CD20 and HLA-DR, but negative for surface immunoglobulin, CD3, CD4, CD10 and CD13. MonockmaI integration of HTLV-1 p&ml DNA was detected in both MTB-1 and TJA cell lines by southern blot analysis. ClonaI marrangement of the immunogIobuIin heavy chain gcnc was also detected in both ceII lines by southern blot analysis. However, clonal rearrangement of the Tcell antigen receptor gene was not detected in both cell lines.

146

149

INDUCTION OF INTERCELLULAR ADHESION MOLECULE-1 EXPRESSION IN HUMAN MEIANOMA CELL LINES BY HYPERTHERMIA IN VITRO AND IN WV0

SCL-2

GENE

EXPRESSION

C. KIYOKAWA.

M. MORITA.

Three human melanoma rr&wle

(lCAM)-l

in dvo.

cell lirws were invesQated

expression

wheter intercellular

adhesion

ICAM-

immunoassay. antibody.

into the medium

was quantified

Also, the cells were stained

by a double

morwlOnal

into the nude mouse skins and heating the melamma nodUles by mlcrOwaVe hypeflhemia at 43’(: for 15 min. The results ware that all three cell lines increased shedding of ICAMwilh temperature dependent manner. The Cells treated with 41 C or 43C were clearly slained with the ardlbocly. The melanoma nests were sporadicalty

stained with the antibody after microwave

Thus, it was concluded

that hyperlhermia

lwman

melanoma

can induce ICAM-

hyperlhermia.

expression

in the

CUTANEOUS

of Dennatolc#.

0.

MORI.

Kurume

H. HACHISUKA

Un’k?ere@ school

and

Y.

SASAI.

of Me&iw,

Kucume,

Japan

cutaneous disease

lumors

indud@

sebonlwlc

by immunahemical

was irmwnohfstoche~ cellsof

SCCand

was detected

stained

SCE.

Using

in

SCE. SCC. hybm.

basal cells of normal

in situ hybridiution,

inhlbftiw

and Paget’s bd-2

mRNA

in basal cells of normal skin md tumor Mile.

showed that in situ hybrl&albn acts as ti

kemtoels,

staining and in sihr

of

bd-2

swtlng

is more sensitive tJ?an y.

of epidermal

cell apopbsll.

m

skin and tumor gene lntenefty bcl-2

The expression

of bcl-2

in

tumor calls ls related rrim the degree of malignancy.

150

VIDEO

WCROSCOPlC

MALlGluNT

DIFFERENTIAL

DIAOIOSIS

NELANOUA AND BENIGN YELANOCVTIC

‘DBpt.of

Dem..

*Division

of

Correct important

Shinrhu Univ. Sch. Dorm. Hokushin Gsnsral

diagnosis of early for improrwaent

cr~scop~.an

slectronic

ws analyzed compared

the

navy6 including roscopic faaturss patterns black

dots.

findings

random

oftan

al streaming. and on ingr ware preferentially vus usually exhibited gin faded out evsnly. of video macrw.cope in

of

with

dysplastic detected and

that

features

can

those

of

of with

P53

T. and Japan

GENE MUTATrCNS

y1

in

benign

brown

lesions. situ

mslanocytic video irregular

macpi-

globules

pseudopods

and

radi-

the

sole. the ridges of the skin aarkpigmmsnted. In contrast. benign neorderly pigment pattarns and ths mar-

These findings support the clinical diagnosis

of

KANEKURA

Kagoshlma

is highly video ma-

skin

of

Characteristic in situ mare

distribution

accompanied

magnify

6 lesions

news. in Nkl

EARLY

Y.ISHIHARA’, of Ysd., Yatrvmeto Hospital.Nakano.

malignant melanoma(kN) of the prognosis. Using

device

magnified

BETWEEN

IN HUMAN SKIN CANCERS

NEVUS

S.DGUCHI’.S.OHKUBO’,S.KAWACHI’.T.SAIDA’,snd

and

AND

cells both in vim and in viva.

147

gent

SKIN

We~edthebcl-2OeneexpressiMlinbjssuesectionsfrwnno~skinand

determinant

with an antl-ICAM-

in viw counier parl study was conducted by inoculating the cells

The

NORMAL

is induced by hyperlhelhenia both b virroand

Cells were lncuhated al 37C, 41 C. and 43C for 3 or 6 hr. and the

shedded

OF

TUMORS

Department

and

79

ths usefulness sarty YI.

and

University

T.

KANZAKI,

Faculty

Deparfment

of Hedlclne,

of

Dermatology,

Kagoshlma,

Japan

Mutations ,n ~53, a twn”r supressor gene, are one of the mosf common genet:c lesions ,n human cancers. In this study, mrmtatlons III exons 5 to 9 of the ~53 gene were screened I,, 4 squanous cell carcinomas (SCCs) of the skin 1 lesion which arose from xar due to burn, I from epldermodysplasla verruciformis, and 2 from actlnlc keratosls -and B basal cell carc~noinas (BCCs) --5 spontaneous lesions, 1 from organold nevus, ’ from xerodetma pignentosum, and I from basal cell nev~s -yndrome -by polymerase chain reactionsingle strand cor.formatlon polymorphism analysis. nutatlon of ~53 gene was detected in only I caseulth XC uhlch a~ose from actlnlc keratosls. The lncldence of the ~53 gene mutation ln this study is tower than those in previous literature. This flndlng lirplles that p53 mstaf,ons do not necessarily contrlbllte to the tumorlgenesis of skin cancers, especially those provoked by genoderaatosls.