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Lehoczky G, Trofin RE, Vallmajo-Martin Q, Chawla S, Pelttari K, Mumme M, Haug M, Egloff C, Jakob M, Ehrbar M, Martin I, Barbero A. In Vitro and Ectopic In Vivo Studies toward the Utilization of Rapidly Isolated Human Nasal Chondrocytes for Single-Stage Arthroscopic Cartilage Regeneration Therapy. Int J Mol Sci 2022; 23:ijms23136900. [PMID: 35805907 PMCID: PMC9267018 DOI: 10.3390/ijms23136900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/15/2022] [Accepted: 06/19/2022] [Indexed: 02/05/2023] Open
Abstract
Nasal chondrocytes (NCs) have a higher and more reproducible chondrogenic capacity than articular chondrocytes, and the engineered cartilage tissue they generate in vitro has been demonstrated to be safe in clinical applications. Here, we aimed at determining the feasibility for a single-stage application of NCs for cartilage regeneration under minimally invasive settings. In particular, we assessed whether NCs isolated using a short collagenase digestion protocol retain their potential to proliferate and chondro-differentiate within an injectable, swiftly cross-linked and matrix-metalloproteinase (MMP)-degradable polyethylene glycol (PEG) gel enriched with human platelet lysate (hPL). NC-hPL-PEG gels were additionally tested for their capacity to generate cartilage tissue in vivo and to integrate into cartilage/bone compartments of human osteochondral plugs upon ectopic subcutaneous implantation into nude mice. NCs isolated with a rapid protocol and embedded in PEG gels with hPL at low cell density were capable of efficiently proliferating and of generating tissue rich in glycosaminoglycans and collagen II. NC-hPL-PEG gels developed into hyaline-like cartilage tissues upon ectopic in vivo implantation and integrated with surrounding native cartilage and bone tissues. The delivery of NCs in PEG gels containing hPL is a feasible strategy for cartilage repair and now requires further validation in orthotopic in vivo models.
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Affiliation(s)
- Gyözö Lehoczky
- Department of Orthopaedic Surgery and Traumatology, University Hospital of Basel, 4031 Basel, Switzerland; (G.L.); (M.M.); (C.E.)
- Department of Biomedicine, Tissue Engineering Laboratory, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; (R.E.T.); (S.C.); (K.P.); (A.B.)
| | - Raluca Elena Trofin
- Department of Biomedicine, Tissue Engineering Laboratory, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; (R.E.T.); (S.C.); (K.P.); (A.B.)
| | - Queralt Vallmajo-Martin
- Department of Obstetrics, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (Q.V.-M.); (M.E.)
| | - Shikha Chawla
- Department of Biomedicine, Tissue Engineering Laboratory, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; (R.E.T.); (S.C.); (K.P.); (A.B.)
| | - Karoliina Pelttari
- Department of Biomedicine, Tissue Engineering Laboratory, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; (R.E.T.); (S.C.); (K.P.); (A.B.)
| | - Marcus Mumme
- Department of Orthopaedic Surgery and Traumatology, University Hospital of Basel, 4031 Basel, Switzerland; (G.L.); (M.M.); (C.E.)
- Department of Biomedicine, Tissue Engineering Laboratory, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; (R.E.T.); (S.C.); (K.P.); (A.B.)
- Department of Orthopaedic Surgery, University Children’s Hospital of Basel, 4056 Basel, Switzerland
| | - Martin Haug
- Department of Plastic, Reconstructive and Aesthetic Surgery and Hand Surgery, University Hospital of Basel, 4031 Basel, Switzerland;
| | - Christian Egloff
- Department of Orthopaedic Surgery and Traumatology, University Hospital of Basel, 4031 Basel, Switzerland; (G.L.); (M.M.); (C.E.)
| | | | - Martin Ehrbar
- Department of Obstetrics, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (Q.V.-M.); (M.E.)
| | - Ivan Martin
- Department of Biomedicine, Tissue Engineering Laboratory, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; (R.E.T.); (S.C.); (K.P.); (A.B.)
- Correspondence: ; Tel.: +41-61-2652384; Fax: +41-61-2653990
| | - Andrea Barbero
- Department of Biomedicine, Tissue Engineering Laboratory, University Hospital Basel, University of Basel, 4031 Basel, Switzerland; (R.E.T.); (S.C.); (K.P.); (A.B.)
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Lehoczky G, Mumme M, Pelttari K, Trofin R, Chawla S, Haug M, Egloff C, Jakob M, Martin I, Barbero A. New single-stage, arthroscopic cartilage regeneration therapy with nasal chondrocytes. Cytotherapy 2021. [DOI: 10.1016/s1465324921005016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gehmert S, Lehoczky G, Loibl M, Jung F, Prantl L, Gehmert S. Interaction between extracellular cancer matrix and stromal breast cells. Clin Hemorheol Microcirc 2020; 74:45-52. [PMID: 31796667 DOI: 10.3233/ch-199234] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Stromal-epithelial interactions are fundamental for normal organ development and there is a multitude of evidence that the different components of the microenvironment are also necessary for the maintenance and promotion of the "tumor organ". Deregulated tumor associated extracellular matrix (tECM) is a hallmark of cancer, causing an alteration in the amount and composition of the different components (i.e. proteins, proteoglycans, glycoproteins and polysaccharids) of the ECM. As epithelial-stromal interactions are reciprocal, it is possible that tECM itself is able to initiate tumor development. We therefore established a mouse model to examine the influence of tECM of murine breast cancer on developing breast tissue in mice. MATERIALS AND METHODS Breast cancer was established in 5 BALB/c mice by subcutaneous injection of 1×106 4T1 cells in 100μl PBS into the left mammary fat pad. The mammary fat pad including the primary tumor was excised after two weeks, decellularised and labelled as tumor extracellular matrix (tECM). Tumor ECM of 4T1 tumors was implanted into the 4th inguinal mammary fat pad of BALB/c mice (n = 5) aged 5 days. After 12 weeks the fourth mammary fat pad including the primary tumor was excised. Tissue was used for paraffin embedding and mouse breast cancer PCR array. Murine breast cancer tissue (BCT) and normal murine breast tissue (BT) served as control. RESULTS Gene array analysis of 84 breast cancer-specific transcripts revealed that the mammary gland cells which were exposed to tumor ECM (tECM-BT) showed a similarly high overexpression for 22 genes as apparent for breast cancer tissue (BCT). The corresponding scatter plot showed a high agreement in the expression of the examined genes between the mammary gland cells which were exposed to tumor ECM and the breast cancer tissue. DISCUSSION Our results clearly demonstrate that the tECM is able to shift the gene expression pattern of murine mammary epithelial cells towards that of carcinoma, indicating a role in breast cancer initiation. These data underlines that the acellular component of the tumor (ECM) can lead to a transformation of mammary gland tissue cells. These data show for the first time that the interaction of normal breast tissue cells with tumor ECM leads to an exchange of information and a consecutive overexpression of tumor-specific genes.
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Affiliation(s)
- Sanga Gehmert
- Department of Gynecology and Obstetrics, Kantonsspital Baselland, Liestal, Switzerland.,Applied Stem Cell Research Center, University Medical Center Regensburg, Regensburg, Germany
| | - Gyözö Lehoczky
- Department of Orthopedics, University Children's Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Markus Loibl
- Applied Stem Cell Research Center, University Medical Center Regensburg, Regensburg, Germany.,Department of Trauma Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - Friedrich Jung
- Institute of Biotechnology, Brandenburg University of Technology, Senftenberg, Germany
| | - Lukas Prantl
- Applied Stem Cell Research Center, University Medical Center Regensburg, Regensburg, Germany.,Department of Plastic and Hand Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Sebastian Gehmert
- Applied Stem Cell Research Center, University Medical Center Regensburg, Regensburg, Germany.,Department of Orthopedics, University Children's Hospital Basel, Basel, Switzerland
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Lehoczky G, Wolf F, Mumme M, Gehmert S, Miot S, Haug M, Jakob M, Martin I, Barbero A. Intra-individual comparison of human nasal chondrocytes and debrided knee chondrocytes: Relevance for engineering autologous cartilage grafts. Clin Hemorheol Microcirc 2020; 74:67-78. [PMID: 31743993 DOI: 10.3233/ch-199236] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Implantation of autologous chondrocytes for cartilage repair requires harvesting of undamaged cartilage, implying an additional joint arthroscopy surgery and further damage to the articular surface. As alternative possible cell sources, in this study we assessed the proliferation and chondrogenic capacity of debrided Knee Chondrocytes (dKC) and Nasal Chondrocytes (NC) collected from the same patients. METHODS Matched NC and dKC pairs from 13 patients enrolled in two clinical studies (NCT01605201 and NCT026739059) were expanded in monolayer and then chondro-differentiated in 3D collagenous scaffolds in medium with or without Transforming Growth Factor beta 1 (TGFβ1). Cell proliferation and amount of cartilage matrix production by these two cell types were assessed. RESULTS dKC exhibited an inferior proliferation rate than NC, and a lower capacity to chondro-differentiate. Resulting dKC-grafts contained lower amounts of cartilage specific matrix components glycosaminoglycans and type II collagen. The cartilage forming capacity of dKC did not significantly correlate with specific clinical parameters and was only partially improved by medium supplemention with TGFβ1. CONCLUSIONS dKC exhibit a reproducibly poor capacity to engineer cartilage grafts. Our in vitro data suggest that NC would be a better suitable cell source for the generation of autologous cartilage grafts.
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Affiliation(s)
- Gyözö Lehoczky
- Department of Surgery, University Hospital of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Francine Wolf
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Marcus Mumme
- Department of Surgery, University Hospital of Basel, Basel, Switzerland.,Department of Orthopaedics, University Children's Hospital Basel, Basel, Switzerland
| | - Sebastian Gehmert
- Department of Orthopaedics, University Children's Hospital Basel, Basel, Switzerland
| | - Sylvie Miot
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Martin Haug
- Department of Surgery, University Hospital of Basel, Basel, Switzerland
| | - Marcel Jakob
- Department of Surgery, University Hospital of Basel, Basel, Switzerland
| | - Ivan Martin
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Andrea Barbero
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
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Lehoczky G. [Sialidase activity in the cervical connective tissue]. Orv Hetil 1994; 135:829; author reply 829-30. [PMID: 7772096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Bozóky L, Lehoczky G. [Development of new, more effective radiation protection methods for radium-treated patients and report of two of our most unusual cases]. Orv Hetil 1991; 132:1041-4. [PMID: 2027679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In year 1936 was opened in Budapest the Loránd Eötvös Radium and Röntgen Institute having 2 Ci radium in many tubes and needles. In the first years the occupational gamma exposure of persons working in the gynecological department and in the health physical laboratory was very high, because the maximum permissible dose recommended by the ICRP in 1928 was 1.5 R/week. With the developing of new radiation protection equipments was the absorbed dose strongly decreased. A physician and a physicist received total more than 2-times higher dose, than the permissible newest dose limit, but they are now 86 and 87 year old and without any radiation detriment, in good health. Similar publications with such long continually measured dose data, was not found in the literature.
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Affiliation(s)
- L Bozóky
- Országos Onkológiai Intézet, Budapest
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Abstract
Thirty large vesico-vaginal and vesico-vagino-rectal fistulas developing after severe radiation injury were closed using Lehoczky's island flap. The pedicle flap of skin and adipose tissue was taken from the area bordered by the greater lip of the pudendum, the perineum and the thigh. It received its blood supply from the internal pudendal artery. Urinary or faecal diversion was not performed. Healing was satisfactory in all 30 patients and there was no recurrence of the fistula.
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Abstract
For the repair of urethrovesicovaginorectal fistulas, a vulvocolpocleisis was made and reinforced by an island flap in 5 cases. A vesicovaginorectal urinary reservoir was so prepared. Fecal diversion is ensured by a preternatural anus. All 5 patients void urine through the rectum every 3-4 h without recurrence of fistula.
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Kelemen Z, Lehoczky G, Perner F, Lipták J. [Surgical management of combined urethro-, vesico- and recto-vaginal fistulas by islet skin flaps]. Orv Hetil 1985; 126:659-61. [PMID: 3991162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kelemen Z, Lehoczky G. [Correction of a large vesicovaginal fistula by Lehoczky's fenestraion flap method]. Orv Hetil 1979; 120:831-2. [PMID: 370723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Bánóczy J, Lehoczky G. [Comparative gynecologic and stomatologic study of precancerous conditions]. Dtsch Stomatol 1969; 19:37-42. [PMID: 5256165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Bánóczy J, Lehoczky G. [Comparative studies of patients with gynecologic and stomatologic cancer and precancerous conditions]. Fogorv Sz 1968; 61:173-5. [PMID: 5243319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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