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Year : 2013  |  Volume : 5  |  Issue : 2  |  Page : 97-100

Stem cell niche is partially lost during follicular plucking: A preliminary pilot study


1 Department of AIIMS, Stem Cell Facility, All India Institute of Medical Sciences, New Delhi, India
2 Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
3 Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
4 Department of Cardio-Thoracic Vascular Surgery, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Sujata Mohanty
Stem Cell Facility, All India Institute of Medical Sciences, New Delhi - 110 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-7753.122973

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Background: Clinical hair transplant studies have revealed that follicular unit extraction (FUE) is superior in terms of stable hair growth in comparison to follicular plucking (FP). Various reasons have been cited for this clinical outcome. FUE and FP are employed to obtain the hair follicle units for hair transplant and recently for cell based therapies in vitiligo. However, there is no scientific data available on the comparison of stem cell fraction in the cell suspension obtained by FUE and FP. Therefore, we undertook this study to compare the percentage of stem cells in the hair follicle obtained by FUE and FP. Objective: The purpose of the following study is to evaluate the quantitative stem cell pool in the hair follicle obtained by FUE and FP. Materials and Methods: A total of 3 human subjects were enrolled with age groups of 17-25 years. Both methods of tissue harvest: FUE and FP; were employed on each subject. There was no vitiligo lesion on the scalp in any of the patients. Hair follicles were incubated with trypsin-EDTA solution at 37°C for 90 min to separate outer root sheath cells. The cell suspension was passed through a 70 μm cell strainer; filtrate was centrifuged to obtain the cell pellet. Cells were labeled with cluster of differentiation (CD200) antibody and acquired with flowcytometry. Results: The mean percentage of CD200 positive cells in FUE and FP method come out to be 8.43 and 1.63 respectively (P = 0.0152). Conclusion: FUE is a better method of the hair follicle harvesting for cell based applications as the stem cell fraction is significantly higher in comparison to FP.


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