Leow Kimberley, Alvis Leon Timothy Charles, Yuen Bradley Edmond Charles, Cheng Leighton, Chiam Shiqi, Razak Siti Nurfarahdillah Binte Abdul, Evans Gerard Benjamin, Koh Kenneth, Lim Ivor Jiun, Phan Toan Thang, Wong Keng Lin
Department of Podiatry Sengkang General Hospital Singapore.
CellResearch Corporation Singapore Singapore.
Health Sci Rep. 2024 Nov 20;7(11):e70211. doi: 10.1002/hsr2.70211. eCollection 2024 Nov.
The healing of diabetic foot ulcers (DFUs) can be hindered by the susceptibility of the surrounding intact skin to pro-inflammatory proteases. A conditioned media, known as PTT-6, derived from mesenchymal stem cells found in the lining of red deer umbilical cords, has been formulated to protect the intact peri-wound skin of DFUs. The aim is to evaluate the clinical effectiveness of PTT-6 in managing peri-wound intact skin in hard-to-heal DFUs.
Patients with DFUs that persisted for over 3 months were divided into two subgroups. The active wound group received standard-of-care treatment protocol followed by PTT-6 application around the peri-wound area, while the maintenance wound group applied PTT-6 media over the healed wound site.
Forty cases were recorded, of which 22 (55%) were included in the active wound group. The majority were male (75%, = 30) and vast majority had cardiovascular risk factors, including diabetes mellitus (100%, = 40), hyperlipidemia (82.5%, = 33), and hypertension (77.5%, = 31). Most patients had forefoot wounds (80%, = 32) on the plantar aspect (82.5%, = 33). The patients in the active wound group had chronic DFUs for a mean of 218 ± 201 days. Of those treated with PTT-6™ media, 68.4% ( = 13) achieved complete wound healing within a mean duration of 69 ± 50 days. Additionally, most patients in the maintenance wound group remained ulcer-free at 3 months (91.7%, = 11) and 6 months (66.7%, = 6).
The study results suggest that PTT-6 media may serve as an additional treatment modality for enhancing the microenvironment at the peri-wound intact skin site. This could indirectly facilitate wound healing by preserving the integrity of the peri-wound intact skin.
糖尿病足溃疡(DFU)周围完整皮肤对促炎蛋白酶的易感性会阻碍溃疡愈合。一种名为PTT - 6的条件培养基由马鹿脐带内衬的间充质干细胞制备而成,旨在保护DFU周围的完整伤口皮肤。目的是评估PTT - 6在治疗难愈合DFU伤口周围完整皮肤方面的临床效果。
DFU持续超过3个月的患者被分为两个亚组。活动伤口组接受标准护理治疗方案,随后在伤口周围区域应用PTT - 6,而维持伤口组在已愈合的伤口部位应用PTT - 6培养基。
记录了40例病例,其中22例(55%)纳入活动伤口组。大多数为男性(75%,n = 30),绝大多数有心血管危险因素,包括糖尿病(100%,n = 40)、高脂血症(82.5%,n = 33)和高血压(77.5%,n = 31)。大多数患者前足有伤口(80%,n = 32),位于足底(82.5%,n = 33)。活动伤口组患者慢性DFU平均病程为218±201天。使用PTT - 6™培养基治疗的患者中,68.4%(n = 13)在平均69±50天内实现完全伤口愈合。此外,维持伤口组的大多数患者在3个月(91.7%,n = 11)和6个月(66.7%,n = 6)时保持无溃疡状态。
研究结果表明,PTT - 6培养基可作为一种额外的治疗方式,用于改善伤口周围完整皮肤部位的微环境。这可通过保持伤口周围完整皮肤的完整性间接促进伤口愈合。