1.Requirement of B7 Molecule in Activation of Dendritic Epidermal T Cell by Transformed Keratinocyte.
Joo Hyun SHIM ; Seung Jun SEO ; Chang Kwun HONG
Korean Journal of Immunology 2000;22(4):217-223
No abstract available.
Keratinocytes*
2.In vitro proliferation of keratinocytes.
Bo Su PARK ; Eun Gi SUNG ; Yungchang LEE
Korean Journal of Anatomy 1992;25(2):195-203
No abstract available.
Keratinocytes*
3.Human Keratinocyte Culture in Serum - Free Amino Acid Medium.
Soo Byung CHOI ; Jun Young LEE ; Young Hwan KIM ; Chung Won KIM
Korean Journal of Dermatology 1990;28(5):503-508
No abstract available.
Humans*
;
Keratinocytes*
4.Comparison of cell surface area measuring devices.
Korean Journal of Dermatology 1993;31(2):204-209
BACKGROUND: During the past half century we have learned much about the functions of the stratum corneum but very little has been proven. Stratum corneum daes not represent the anatomy of this layer in the usual formalira fixed histological preparation. Several techniques have been developed over, the past decades to study the desquamating portion of the humain stratum corneum. There are several methods to measure the serface area of keratinocyte such as a plar,imeter, a graphic tablet and an automatic cytographic counter. OBJECTIVE: The purpose of this study is to find out the accuracy of different measuring devices. METHOD: Standard figures such as a pentagon, a hexagon and a circle, simulating the figure of keratinocyte are used toneasure srea. Repeated measurements of the areas by planimeter, graphic tablet and automatic cytographic counter were analysed by statiatic. RESULT: The planimeter had the advantage of measuring the entire visible area by microscope and a low mean absolute percent error (MAPE) (0.3%), but it needed skill to reduce error and more MAPE (0.5%). Graphic tablet was less time consuming, but had similar advantages of the plarimeter, and needed also skill. On the other hand, the automatic cytographic counter(YK-1) had a very short measuring time and needed less skill, but required good contrast stairing of in order to measure area. CONCLUSION: Comparing the accurracy of three measuring devices of area, the MAPE of the planimeter was 0.3%, the MAPE of YK-1 was 0.5% and the MAPE of graphic tablet was 0.5%.
Hand
;
Keratinocytes
5.Study on the "TAKE" of cultured keratinocyte graft.
Yong Geun CHO ; Sung Pyo HONG ; Choong Hyun CHANG ; Doo Hyung LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(1):13-22
No abstract available.
Keratinocytes*
;
Transplants*
6.A Case of Intraepidermal Epithelioma Showing Dermal Invasion.
Sang Wook LEE ; Ji Ae KWON ; Kyung Moon KIM ; Seok Jin KANG ; Si Yong KIM
Korean Journal of Dermatology 2003;41(9):1264-1266
Intraepidermal epithelioma is a rare cutaneous neoplasm characterized histologically by intraepidermal collections of malignant appearing keratinocytes preserving the epidermal architecture. In our case, the tumour unusually showed parakeratosis and dermal invasion. There were a few reports which exhibited parakeratosis and invasion. So, we suggest there may be correlation between these factors.
Carcinoma*
;
Keratinocytes
;
Parakeratosis
7.The in vitro effect of ultraviolet radiation on the production of IL-1 by human keratinocyte and the influence of retinoid.
Jin Ho CHUNG ; Hee Chul EUN ; Jai Il YOUN
Korean Journal of Immunology 1993;15(2):173-182
No abstract available.
Humans*
;
Interleukin-1*
;
Keratinocytes*
8.Growth Effect of Minoxidil and Minoxidil Sulfate on Cultured Human Keratinocytes and Outer Root Sheath Cells.
Hee Chul EUN ; Hyung Chan PYO ; Sung Woo CHOI ; Seung Yong JUNG
Annals of Dermatology 1992;4(2):72-76
No abstract available.
Humans*
;
Keratinocytes*
;
Minoxidil*
9.Induction of IL-lα mRNA Expression by 17β-Estradiol in Normal Human Keratinocytes.
Chuluundorj DELGERTSETSEG ; Seok Beom HONG ; Young Il KIM ; Nack In KIM
Annals of Dermatology 2004;16(4):163-168
No abstract available.
Humans*
;
Keratinocytes*
;
RNA, Messenger*
10.Separation of Human Epidermal Cells by Using Percoll.
Woo Young SIM ; Eul Nam HAN ; Nack In KIM ; Choong Rim HAW
Korean Journal of Dermatology 1986;24(1):1-7
The epidermis, which is composed mainly of keratinocyt;es, undergoes continual proliferation and differentiation, To study keratinocyte differentiation, it is necessary to separate the keratinocytes at their sucessive stages of maturation. We separate the keratinocytes by layers by using Percoll and obtain the relatively pure fractions of basal cells, spinous cells, and granular cells, 76. 8%, 67. 2%, 30%. respectively.
Epidermis
;
Humans*
;
Keratinocytes
Result Analysis
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