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Mok MY, Law KS, Kong WY, Luo CY, Asfaw ET, Chan KW, Huang FP, Lau CS, Chan GCF. Interleukin-33 Ameliorates Murine Systemic Lupus Erythematosus and Is Associated with Induction of M2 Macrophage Polarisation and Regulatory T Cells. J Innate Immun 2023; 15:485-498. [PMID: 36889298 PMCID: PMC10134067 DOI: 10.1159/000529931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 02/14/2023] [Indexed: 03/10/2023] Open
Abstract
The innate cytokine IL-33 is increasingly recognised to possess biological effects on various immune cells. We have previously demonstrated elevated serum level of soluble ST2 in patients with active systemic lupus erythematosus suggesting involvement of IL-33 and its receptor in the lupus pathogenesis. This study sought to examine the effect of exogenous IL-33 on disease activity of pre-disease lupus-prone mice and the underlying cellular mechanisms. Recombinant IL-33 was administered to MRL/lpr mice for 6 weeks, whereas control group received phosphate-buffered saline. IL-33-treated mice displayed less proteinuria, renal histological inflammatory changes, and had lower serum levels of pro-inflammatory cytokines including IL-6 and TNF-α. Renal tissue and splenic CD11b+ extracts showed features of M2 polarisation with elevated mRNA expression of Arg1, FIZZI, and reduced iNOS. These mice also had increased IL-13, ST2, Gata3, and Foxp3 mRNA expression in renal and splenic tissues. Kidneys of these mice displayed less CD11b+ infiltration, had downregulated MCP-1, and increased infiltration of Foxp3-expressing cells. Splenic CD4+ T cells showed increased ST2-expressing CD4+Foxp3+ population and reduced IFN-γ+ population. There were no differences in serum anti-dsDNA antibodies and renal C3 and IgG2a deposit in these mice. Exogenous IL-33 was found to ameliorate disease activity in lupus-prone mice with induction of M2 polarisation, Th2 response, and expansion of regulatory T cells. IL-33 likely orchestrated autoregulation of these cells through upregulation of ST2 expression.
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Affiliation(s)
- Mo Yin Mok
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
- Department of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Ka Sin Law
- Department of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Wing Yin Kong
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Cai Yun Luo
- Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Endale T. Asfaw
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Kwok Wah Chan
- Department of Pathology, University of Hong Kong, Hong Kong SAR, China
| | - Fang Ping Huang
- Department of Pathology, University of Hong Kong, Hong Kong SAR, China
| | - Chak Sing Lau
- Department of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Godfrey Chi Fung Chan
- Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong SAR, China
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Poon DMC, Chan CK, Chan K, Chu WH, Kwong PWK, Lam W, Law KS, Lee EKC, Liu PL, Sze HCK, Wong JHM, Chan ESY. Recommendations for the management of advanced and metastatic renal cell carcinoma: joint consensus statements from the Hong Kong Urological Association and the Hong Kong Society of Uro-Oncology. Hong Kong Med J 2022; 28:475-481. [PMID: 35815480 DOI: 10.12809/hkmj219727] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 02/01/2023] Open
Abstract
INTRODUCTION Kidney cancer, primarily renal cell carcinoma (RCC), ranks among the top 10 most common malignancies in the male population of Hong Kong. In 2019, members of two medical societies in Hong Kong formed an expert panel to establish a set of consensus statements for the management of metastatic RCC. On 22 June 2021, the same panel met to review recent evidence and reassess their positions regarding the management of advanced and metastatic RCC, with the aim of providing recommendations for physicians in Hong Kong. PARTICIPANTS The panel included 12 experts (6 clinical oncologists and 6 urologists) who had extensive experience managing patients with RCC in Hong Kong. EVIDENCE The panel reviewed randomised controlled trials, observational studies, systematic reviews/meta-analyses, and international clinical guidelines to address key clinical questions that were identified before the meeting. CONSENSUS PROCESS In total, 15 key clinical questions were identified before the meeting, covering the surgical and systemic treatment of advanced or metastatic clear cell, sarcomatoid, and non-clear cell RCCs. At the meeting, the panellists voted on these questions, then discussed relevant evidence and practical considerations. CONCLUSIONS The treatment landscape for advanced and metastatic RCC continues to evolve. More immune checkpoint inhibitor (ICI)-based combination regimens will be indicated for the treatment of metastatic clear cell RCC. There is increasing evidence concerning the benefit of adjuvant ICI treatment for resected advanced RCC. This article summarises recent evidence and expert insights regarding a series of key clinical questions about the management of advanced and metastatic RCC.
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Affiliation(s)
- D M C Poon
- Hong Kong Society of Uro-Oncology, Hong Kong
| | - C K Chan
- Hong Kong Urological Association, Hong Kong
| | - K Chan
- Hong Kong Society of Uro-Oncology, Hong Kong
| | - W H Chu
- Hong Kong Urological Association, Hong Kong
| | - P W K Kwong
- Hong Kong Society of Uro-Oncology, Hong Kong
| | - W Lam
- Hong Kong Urological Association, Hong Kong
| | - K S Law
- Hong Kong Society of Uro-Oncology, Hong Kong
| | - E K C Lee
- Hong Kong Society of Uro-Oncology, Hong Kong
| | - P L Liu
- Hong Kong Urological Association, Hong Kong
| | - H C K Sze
- Hong Kong Society of Uro-Oncology, Hong Kong
| | - J H M Wong
- Hong Kong Urological Association, Hong Kong
| | - E S Y Chan
- Hong Kong Urological Association, Hong Kong
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Ng BYH, Yu ELM, Lau TTS, Law KS, Cheng ACK. Associations of clinical and dosimetric parameters with late rectal toxicities after radical intensity-modulated radiation therapy for prostate cancer: a single-centre retrospective study. Hong Kong Med J 2019; 25:460-467. [PMID: 31796645 DOI: 10.12809/hkmj198037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 11/05/2022] Open
Abstract
INTRODUCTION This study assessed the incidence of late rectal toxicities and evaluated potential predictive factors for late proctitis in patients treated with prostate-specific intensity-modulated radiotherapy in Hong Kong. METHODS This retrospective longitudinal observational study included patients with localised prostate cancer who were treated with intensity-modulated radiation therapy in an oncology unit in Hong Kong between January 2007 and December 2011, and who had >1 year of follow-up. Clinical, pharmacological, and radiation parameters were recorded. Toxicities were measured by Common Terminology Criteria for Adverse Events version 4. RESULTS In total, 232 patients were included in this analysis. The mean follow-up time was 7.3 ± 2.1 years and 46.5% of the patients had late rectal toxicities. Late proctitis occurred in 30.5% of patients; 25% of the patients with late proctitis exhibited grade ≥2 toxicity. Median onset times for late proctitis and rectal bleeding were 15 and 18.4 months, respectively. Multivariable regression showed increased odds for the occurrence of late proctitis in patients with older age (odds ratio [OR]=1.11, 95% confidence interval [CI]=1.04-1.19, P=0.003), higher V70 (OR=1.08, 95% CI=1.01-1.15, P=0.027), and presence of acute rectal toxicities (OR=4.47, 95% CI=2.37-8.43, P<0.001). Antiplatelet use was not significantly associated with the occurrence of late proctitis (OR=1.98, 95% CI=0.95-4.14, P=0.07). CONCLUSIONS The incidence of late rectal toxicities was considerable among patients in this study. Clinicians should consider the possibility of late proctitis for patients with older age, acute rectal toxicities, and higher V70. High doses to rectal volumes should be limited because of the significant association with V70.
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Affiliation(s)
- B Y H Ng
- Department of Oncology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - E L M Yu
- Clinical Research Centre, Princess Margaret Hospital, Laichikok, Hong Kong
| | - T T S Lau
- Department of Oncology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - K S Law
- Department of Oncology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - A C K Cheng
- Department of Oncology, Princess Margaret Hospital, Laichikok, Hong Kong
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Wu H, Lo Y, Chan A, Law KS, Mok MY. Rel B-modified dendritic cells possess tolerogenic phenotype and functions on lupus splenic lymphocytes in vitro. Immunology 2017; 149:48-61. [PMID: 27278094 PMCID: PMC4981611 DOI: 10.1111/imm.12628] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 04/18/2016] [Accepted: 05/28/2016] [Indexed: 12/26/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease that is characterized by high morbidity and mortality and its treatment remains challenging. Dendritic cells (DCs) have been shown to participate in the initiation and perpetuation of lupus pathogenesis and the DCs that can induce tolerogenicity appear as potential cell‐based therapy in this condition. In this study, we examined the in vitro tolerogenic properties of bone‐marrow derived DCs (BMDCs) in the murine lupus setting. We used lentiviral transduction of RelB‐silencing short hairpin RNA to modify the expression of RelB, a key transcription factor regulating DC maturation, in BMDCs from MRL/MpJ mice. Tolerogenic properties of RelB‐modified DCs were compared with scrambled control (SC) ‐modified DCs. RelB expression was found to be significantly reduced in RelB‐modified DCs derived from MRL/MpJ mice, wild‐type of the same genetic background as MRL/lpr lupus‐prone mice. These MRL/MpJ RelB‐modified DCs displayed semi‐mature phenotype with expression of lower levels of co‐stimulatory molecules compared with SC‐modified DCs. RelB‐modified DCs were found to be low producers of interleukin‐12p70 (IL‐12p70) and could induce hyporesponsiveness of splenic T cells from MRL/MpJ and MRL/lpr mice. Furthermore, they down‐regulated interferon‐γ expression and induced IL‐10‐producing T cells in MRL/MpJ splenocytes, and attenuated interferon‐γ and IL‐17 expression in MRL/lpr splenic CD4+ lymphocytes. Splenocytes primed by RelB‐modified DCs demonstrated antigen‐specific suppressive effects on allogeneic splenocytes. In conclusion, RelB‐silencing in DCs generates DCs of tolerogenic properties with immunomodulatory function and appears as potential option of cell‐targeted therapy.
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Affiliation(s)
- Haijing Wu
- Division of Rheumatology & Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
| | - Yi Lo
- Division of Rheumatology & Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
| | - Albert Chan
- Division of Rheumatology & Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
| | - Ka Sin Law
- Division of Rheumatology & Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
| | - Mo Yin Mok
- Division of Rheumatology & Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
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Chu WK, Law KS, Chan SO, Yam JCS, Chen LJ, Zhang H, Cheung HS, Block NL, Schally AV, Pang CP. Antagonists of growth hormone-releasing hormone receptor induce apoptosis specifically in retinoblastoma cells. Proc Natl Acad Sci U S A 2016; 113:14396-14401. [PMID: 27911838 PMCID: PMC5167144 DOI: 10.1073/pnas.1617427113] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Retinoblastoma (RB) is the most common intraocular cancer in children worldwide. Current treatments mainly involve combinations of chemotherapies, cryotherapies, and laser-based therapies. Severe or late-stage disease may require enucleation or lead to fatality. Recently, RB has been shown to arise from cone precursor cells, which have high MDM2 levels to suppress p53-mediated apoptosis. This finding leads to the hypothesis that restoring apoptosis mechanisms in RBs could specifically kill the cancer cells without affecting other retinal cells. We have previously reported involvement of an extrapituitary signaling pathway of the growth hormone-releasing hormone (GHRH) in the retina. Here we show that the GHRH receptor (GHRH-R) is highly expressed in RB cells but not in other retinal cells. We induced specific apoptosis with two different GHRH-R antagonists, MIA-602 and MIA-690. Importantly, these GHRH-R antagonists do not trigger apoptosis in other retinal cells such as retinal pigmented epithelial cells. We delineated the gene expression profiles regulated by GHRH-R antagonists and found that cell proliferation genes and apoptotic genes are down- and up-regulated, respectively. Our results reveal the involvement of GHRH-R in survival and proliferation of RB and demonstrate that GHRH-R antagonists can specifically kill the RB cells.
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Affiliation(s)
- Wai Kit Chu
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Ka Sin Law
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Sun On Chan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Jason Cheuk Sing Yam
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Li Jia Chen
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Hao Zhang
- Cancer Research Center, Shantou University Medical College, Shantou 515041, Guangdong, China
- Department of Biotherapy, Affiliated Cancer Hospital of Shantou University Medical College, Shantou 515041, China
- Tumor Tissue Bank, Affiliated Cancer Hospital of Shantou University Medical College, Shantou 515041, China
| | - Herman S Cheung
- Department of Biomedical Engineering, University of Miami, Miami, FL 33146
| | - Norman L Block
- Department of Biomedical Engineering, University of Miami, Miami, FL 33146
- Department of Pathology, University of Miami Medical School, Miami, FL 33136
| | - Andrew V Schally
- Department of Pathology, University of Miami Medical School, Miami, FL 33136;
- Veterans Affairs Medical Center, Miami, FL 33125
- Department of Medicine, Divisions of Hematology and Oncology and Endocrinology, University of Miami School of Medicine, Miami, FL 33136
- Sylvester Comprehensive Cancer Center, University of Miami School of Medicine, Miami, FL 33136
| | - Chi Pui Pang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong;
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Law KS, Wong RKY, Yu E, Cheng ACK. Treatment Outcome of Cetuximab Compared with Cisplatin during Radical Radiotherapy for Locally Advanced Head and Neck Cancer. Hong Kong J Radiol 2016. [DOI: 10.12809/hkjr1615340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Affiliation(s)
- K S Law
- Department of Obstetrics and Gynaecology, Tungs' Taichung MetroHarbour Hospital & Taipei Medical University, WuCi, Taichung County, Taiwan.
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Law KS, Chang TC, Hsueh S, Jung SM, Tseng CJ, Lai CH. High prevalence of high grade squamous intraepithelial lesions and microinvasive carcinoma in women with a cytologic diagnosis of low grade squamous intraepithelial lesions. J Reprod Med 2001; 46:61-4. [PMID: 11209634] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE To evaluate the histologic nature of low grade intraepithelial lesion (LSIL) in a region with a high prevalence of invasive cervical carcinoma and to propose a management protocol. STUDY DESIGN Comparing the follow-up of 877 women with LSIL during a 43-month period, taking into consideration the histologic nature determined by colposcopic biopsy, endocervical curettage, conization or hysterectomy as the final pathologic diagnosis. RESULTS During the study period, from July 1994 to February 1998, a total of 128,925 Pap smears were performed at our institute, with 877 (0.68%) diagnosed as LSIL. Among these, 722 women with CIN1-SIL and 32 with human papillomavirus-related changes (HPV-SIL) were enrolled in the study. Of the 543 women with CIN 1/squamous intraepithelial lesion, 145 (27%) cases of high grade squamous intraepithelial lesion were disclosed histologically, as were 16 (3%) cases of microinvasion. Among those followed at an interval of three months with a Pap smear alone, the persistence rate was 46.8%, while the regression rate was 40%. Thirty-two women with HPV/SIL underwent histologic evaluation, revealing 18% CIN 2/3 with no microinvasion. CONCLUSION A high percentage of CIN 2/3 as well as microinvasive lesions will go unnoticed in the absence of colposcopic evaluation.
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Affiliation(s)
- K S Law
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Linkou Medical Center, 5, Fu-Shin Street, Kwei-shan, Taoyuan, 333 Taiwan
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Lin CT, Tseng CJ, Lai CH, Hsueh S, Huang HJ, Law KS. High-risk HPV DNA detection by Hybrid Capture II. An adjunctive test for mildly abnormal cytologic smears in women > or = 50 years of age. J Reprod Med 2000; 45:345-50. [PMID: 10804494] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
OBJECTIVE To determine whether high-risk human papillomavirus (HPV) DNA testing could improve the detection of cervical intraepithelial neoplasia (CIN) and cancer in older women (> or = 50 years old) with mildly abnormal results on conventional cytology. STUDY DESIGN The study was based on 119 patients aged over 50 (median, 62; range, 50-78) referred for colposcopy with Pap smears reported as atypical squamous cells of undetermined significance (ASCUS) or low grade squamous intraepithelial lesion (LSIL) from February 1997 to September 1998. The presence of high-risk HPV DNA (including HPV types 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59 and 68) was determined with the Hybrid Capture II (Digene, Inc., Silver Spring, Maryland) microplate method. Cytologic examination by Pap smear was based on the Bethesda System and, cervical biopsy was done via colposcopy. RESULTS High-risk HPV DNA was demonstrated in 75.6% (34/45) of patients with LSIL and 52.7% (39/74) with ASCUS. Those who were HPV positive were significantly more likely to have CIN or cancer (odds ratio, 33.40; 95% confidence interval, 11.89-93.97; P < .0001). The sensitivity of HPV assay for detection of lesions more severe than CIN 2 was 100%, specificity 64.8%, positive predictive value 66.7% and negative predictive value 100%. CONCLUSION The addition of a high-risk HPV DNA assay to cytologic examination appears to provide excellent sensitivity and negative predictive value for early detection of high grade CIN or cancer in older women with minimally abnormal Pap smears.
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Affiliation(s)
- C T Lin
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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Law KS, Chang SD, Chen FP, Soong YK. Acardiac acephalus: a case report and implications on expectant management. Changgeng Yi Xue Za Zhi 1999; 22:334-8. [PMID: 10493044] [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] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Acardiac acephalus is a rare occurrence resulting from extensive anastomoses between the vessels of the monochorionic twins which invariably leads to death of the "perfused" twin and an estimated 50% perinatal mortality rate in the "pump" twin, due mainly to premature delivery or congestive heart failure. Once diagnosis has been documented, blocking the vascular flows between the twins has been the principle goal of treatment with the assumption that a more favorable chance of survival in the pump twin can be achieved. However, hasty surgical intervention without a well-designed preoperative evaluation may result in unfavorable outcomes. A 21-year-old nullipara was found to carry an acardiac parabiotic twin in a monochorionic twin pregnancy at 28 weeks of gestation and was referred to us from a local clinic. Expectant management based on the close monitoring of the well-being of the healthy co-twin is presented in this article along with review of published works on the management of this rare condition.
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Affiliation(s)
- K S Law
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Keelung, Taipei, R.O.C.
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Hui C, Law KS, Chen ZX. A Structural Equation Model of the Effects of Negative Affectivity, Leader-Member Exchange, and Perceived Job Mobility on In-role and Extra-role Performance: A Chinese Case. Organ Behav Hum Decis Process 1999; 77:3-21. [PMID: 9924139 DOI: 10.1006/obhd.1998.2812] [Citation(s) in RCA: 252] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this paper, we contrast the effects of leader-member exchange (LMX) with the effects of perceived job mobility on in-role performance and organizational citizenship behavior (OCB). We further model negative affectivity as the antecedent of both LMX and perceived job mobility and suggest that LMX and perceived job mobility mediated the relationship between negative affectivity and performance. We obtained matching data from supervisor and subordinates in a major battery manufacturing company in southern China. Subordinates provided the negative affectivity, perceived job mobility, and LMX assessment, and their immediate supervisors provided the in-role performance and OCB assessment. Results from a structural equation analysis show that both LMX and perceived job mobility predicted OCB. Instead of being a direct antecedent of OCB, the relationship between negative affectivity and OCB is found to be mediated by LMX and perceived job mobility. Theoretical implications of the results are discussed. Copyright 1999 Academic Press.
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Affiliation(s)
- C Hui
- Department of Management of Organizations, Hong Kong University of Science and Technology, Kowloon, Clear Water Bay, Hong Kong
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Alper S, Tjosvold D, Law KS. Interdependence and Controversy in Group Decision Making: Antecedents to Effective Self-Managing Teams. Organ Behav Hum Decis Process 1998; 74:33-52. [PMID: 9719650 DOI: 10.1006/obhd.1998.2748] [Citation(s) in RCA: 269] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Self-managing teams have the challenge to make decisions regarding their tasks and to manage their internal affairs. Findings on 60 self-managing teams with 540 employees indicate that the theory of cooperation and competition is useful for identifying the social processes that help these teams grapple with problems and work effectively. Specifically, teams with highly cooperative goals were found to discuss their opposing views open-mindedly and constructively which in turn developed confidence in team dynamics that contributed to effective team performance. Competitive goals appeared to interfere with constructive controversy, confidence, and effectiveness. Findings were interpreted as suggesting that structuring cooperative goals and constructive controversy can help self-managing teams gain confidence and work productively. Copyright 1998 Academic Press.
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